Wall Ties and Restraint Fixings - Κατασκευή

Wall Ties and Restraint Fixings for the Construction Industry

CI/SfB (21.9) Xt6

March 2008

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BS EN ISO 9001: 2000FM12226

ISO 14001: 2004EMS 505377

3

Ancon designs and manufactures high integrity steel products for

the construction industry. Through continuous programmes of

new product development, inward investment and employee

advancement, the company is committed to maintaining the

highest level of customer service within a dynamic and

challenging industry.

Wall ties and restraint fixings are an essentialelement in the stability of masonry panels.

Ancon manufactures fixings in a variety oflengths and types for restraining brickwork,blockwork and stonework. Restraints can befixed to concrete and structural steelwork aswell as any type of masonry.

The range of standard ties provides a solutionfor all types of wall construction and manyproducts can be delivered in 24 hours. These items are shown in red italics.

Ancon fixings are manufactured fromAustenitic stainless steel. Grade 1.4301 (304)is used in the vast majority of applications. All ties will be supplied to this specification unless Ancon is notified otherwise.

Cavity Wall Tie Selection 4-5

Installation Guidance 6

Ties for Brick-to-Block Construction 7

Ties for Thin-Joint Blockwork 8

Ties for Timber Frames 8

Ties for Steel Studwork 9

Standard Wall Ties 10

Bespoke Wall Tie References 11

Vertical Movement Joints 12

Frame Cramps 13

Non-Drill Fixings for Steelwork 14-15

Head Restraints & Sliding Anchors 16-17

Cast-in Slots, Channels & Fastrack 18

Wall Starter Systems 19

Two-Part Ties & Slip Brick Ties 20

Ties for Bubble Foil Insulation 20

Restraints for Stone Cladding 21-24

Remedial Wall Ties 25-26

Staifix Thor-Helical Crack Stitching Kit 27

Other Ancon Products 27

Masonry Support Systems

Masonry Reinforcement

Windposts and Lintels

Wall Ties and Restraint Fixings

Channel and Bolt Fixings

Tension Systems

Stainless Steel Fabrications

Flooring and Formed Sections

Shear Load Connectors

Reinforcing Bar Couplers

Reinforcement Continuity Systems

Punching Shear Reinforcement

Insulated Balcony Connectors

Refractory Fixings


CAVITY WALL TIE SELECTIONThe selection and spacing of wall ties dependon many factors. These include type ofbrick/block to be tied, cavity width, type andheight of building, location, and design life.There are several documents which need to be consulted.

BS 5628-1: 2005 Code of Practice for theUse of MasonryThis code provides recommendations on lengthof tie, embedment, density and positioning.Masonry-to-masonry ties are classified asTypes 1 to 4; the relevant classification isdetermined by strength, function and use.Minimum declared values for tensile andcompression capacities are listed for each Type.

BS 5268-6:1 1996 (IncorporatingAmendments No’s. 1 and 2): Structural useof timber – Dwellings not exceeding sevenstoreysThis code provides recommendations for wallties for timber framed housing. Information isprovided for the type of structure, location,embedment, density and positioning. Theseties are classified as Types 5 to 7; minimumdeclared values in tension and compressionare listed for Types 5 and 6.

Approved Document E: Resistance to thePassage of SoundThis document specifies the requirements ofType A ties suitable for use in separating(party) walls of new build attached dwellingsand Type B ties for use in external walls.Type A ties must have a measured dynamicstiffness of <4.8MN/m3 for the specifiedminimum cavity, at a standard density. Type Aties in this literature are indicated by this logo.

All Ancon ties which cross a cavity meet therequirements of Type B.

BS EN 845-1: 2003 Specification forAncillary Components for Masonry – Part 1: Ties, Tension Straps, Hangers and BracketsThis European Standard specifies therequirements for wall ties used forinterconnecting masonry and for connectingmasonry to beams, columns or other parts ofthe building. Materials, tolerances, tie typesand the requirements for declared values, areall covered in this standard.

Type 1Ancon ST1

Type 2Staifix RT2

BS 5628-1 and Approved Document E Wall Ties

Tensile Tensile Compressive CompressiveMinimum Mortar Load Load at 1mm Load Load at 1mm

Type Class and Capacity Displacement Capacity Displacementof Tie Designation (N) (N) (N) (N)

1 M12 (i) 5000 1667 5000 1667M2 (iv) 2500 833 2500 833

2 M2 (iv) 1800 600 1300 4333 M2 (iv) 1100 367 800 2674 M2 (iv) 650 217 450 1505 M4 (iii) 600 200 425 1426 M4 (iii) 630 210 440 147

Minimum Requirements for Wall Ties to BS 5628-1: 2005 and BS 5268-6: 1

Selection of Wall Ties to BS 5628-1: 2005 and BS 5268-6: 1

Maximum Building Geographical

Type Application Density Height Location

Type 1 Heavy duty tie suitable for most building 2.5 ties/m2 Any Suitable for most sites.sizes and types. Not very flexible and 3-4 ties/m Height However, for relatively tall ornot recommended for applications at unbonded unusually shaped buildings inwhere there is expected to be excessive edges vulnerable areas, the tiedifferential movement between leaves provision should be calculated

Type 2 General purpose tie for domestic and As Type 1 15m Suitable for flat sites wheresmall commercial buildings. May be the basic wind speed is upsuitable for buildings exceeding to 31m/s and altitude is not15 metres if shown to be adequate more than 150m aboveby calculation sea level

Type 3 Basic wall tie generally as Type 2 above As Type 1 15m Suitable for flat sites in townsand cities where the basicwind speed is up to 25m/sand altitude is not morethan 150m above sea level

Type 4 Light duty wall tie suitable for As Type 1 10m Suitable for flat sites in townsbox-form domestic dwellings with and cities where the basicleaves of similar thickness wind speed does not exceed

25m/s and altitude is not morethan 150m above sea level

Type 5 Timber frame tie suitable for 4.4 ties/m2 15m Suitable for flat sites in townsdomestic houses and small 3-4 ties/m and cities where the basiccommercial developments of up at unbonded wind speed does not exceedto three storeys edges 25m/s and altitude is not more

than 150m above sea levelType 6 Timber frame tie suitable for As Type 5 15m Suitable for flat sites in towns

domestic houses and small and cities where the basiccommercial developments of up wind speed does not exceedto four storeys 25m/s and altitude is not more

than 150m above sea level

≤ 31m/s

≤ 31m/s

≤ 25m/s

Type 4/Type AStaifix HRT4

Information taken from BS 6399-2: 1997 Code ofPractice for Wind Loads

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Density & Positioning of Ties For walls in which both leaves are 90mm orthicker, ties should be used at not less than2.5 per square metre (900mm horizontal x450mm vertical centres). Ties should be evenlydistributed over the wall area, except aroundopenings, and should preferably be staggered.

In cases where insulation board is incorporatedwithin the cavity and restrained by ties withinsulation retaining clips, it may be necessaryto reduce the horizontal spacing of the ties to600mm. At vertical edges of an opening,unreturned or unbonded edges, and verticalexpansion joints, additional ties should beused at a rate of one per 300mm height,located not more than 225mm from the edge.A typical layout is shown below. Various detailsincorporating debonding ties at verticalmovement joints are shown on page 12.

Vertical movement joint

225mm

225mm

225mm

225mm

900mm

300mm

450mm

450mm

300mm

Horizontal movement joint450-900mm Head restraints

at centres to suit windloading

Usually225mm tosuit blockcourses

Usually 225mm tosuit block courses

225mm

Vertical movement joint

450mm

225mm

450mm

Debonded ties

See typical detail atvertical movement jointon page 12

Standard spacing for cavity brickwork 900mm x 450mm centres in a staggered pattern (2.5 ties per square metre)

Typical Layout of Wall Ties Indicating Maximum Spacing

Length of Tie & EmbedmentWall ties should be of the correct length toensure they are properly embedded in themasonry. The tie should have a minimumembedment of 50mm in each leaf but alsotake site tolerances into account for bothcavity width and centring of the tie. For thisreason we suggest tie lengths which achievean embedment of between 62.5mm and75mm.

Recommended lengths to suit various cavitywidths are shown for masonry-to-masonry wall ties.

Recommended Lengths of Masonry /Masonry Wall Ties

Cavity Width Length of Wall Tie BS 5628-1(mm) (mm) Wall Tie

50-75 200 HRT4/RT2/ST1

76-100 225 HRT4/RT2/ST1

101-125 250 RT2/ST1

126-150 275/300* ST1

*These wall ties are ideal for 150mm cavities. Theyshould be embedded 85mm in the inner leaf, whichhelps keep the tie horizontal during the build.

Embedment

Embedment of Wall Ties

EmbedmentCavity width

Tel: +44 (0) 114 275 5224 Web: www.ancon.co.uk


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To ensure cavity wall ties are effective at tyingthe leaves together they should be installed asthe inner leaf is constructed and not simplypushed into a joint. To encourage good sitepractice, all cavity wall ties which could bepushed into the mortar joints of a pre-constructed wall are manufactured withspread safety ends. If installed in this way thewidest part of the safety end leaves a mark inthe mortar each side of the tie.

Ancon frame ties and channel ties aremanufactured with a non-spread safety endallowing the use of a debonding sleeve. Thistype of safety end reduces the variety of tiesrequired on site.

Wall Ties with InsulationRetaining Clips

Ancon Spread Safety End

Ancon Non-Spread Safety End

Staifix Safety End

INSTALLATION GUIDANCEWall ties are important to the stability ofmasonry and failure to install them correctlymay lead to damp penetration, cracking oreven the collapse of walls.

Wall ties should be pressed down in freshmortar. They should be surrounded by mortarand not simply positioned directly ontomasonry with mortar placed around them.

Ideally, ties should be installed with a slight fallto the outer leaf, not towards the inner leaf asthis could provide a path for moisture to crossthe cavity.

The drip part of the tie should point downwardand be positioned near the centre of the opencavity. Ties with multiple drips, like the StaifixRT2, can often be positioned centrally as partof the drip will normally be near the centre ofthe open section of a partial fill cavity.

Installed ties should be clear of mortardroppings to allow the drip to function andprevent water from crossing to the inner leaf of masonry.

The practice of bending up installed wire tiesshould be discouraged. This can adverselyaffect the performance of the tie and weakenthe embedment in the inner leaf. Rigid ties likethe Ancon SD1 and ST1 should never be benton site.

PRE-FIXING AIDSThe practice of pre-fixing frame cramps inadvance of masonry can accelerate the speedof construction and provides an opportunity tocheck that wall restraints have been locatedcorrectly and are securely fixed.

Ancon Gauge Tape (Pre-fix Patent 2 256 223)Gauge Tape illustrates the standard 225mmbrick/block gauge and the fixing position of framecramps. It is applied directly to the structuralframe (steel, concrete, timber or masonry) tofacilitate the pre-fixing of frame cramps and tomaintain accurate masonry coursing.

Ancon ISO-TW WasherThe ISO-TW washer enables Ancon slot-ended frame cramps to be vertically adjustedwithin the 30mm range of the slot to suit theexact location of mortar joints without affectingthe integrity of the fixing. In addition, thiswasher prevents bi-metallic corrosion byseparating the frame cramp from the structuralframe and fixing screw.

Ancon ISO-TW and Gauge Tape

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Staifix RT2200mm for 50-75mm cavities225mm for 76-100mm cavities250mm for 101-125mm cavities

WALL TIES TO BS 5628-1 FORBRICK-TO-BLOCK CONSTRUCTION

Ancon ST1 Type 1 Tie(Masonry Heavy Duty)The Ancon ST1 is suitable for cavities from50mm to 150mm and can be used for alltypes of buildings of any height, anywhere inthe British Isles. The section that spans thecavity has a series of holes to provide waterdrips. This allows the same tie to be used ininsulated cavities as well as open cavities.The ST1 has a measured dynamic stiffness of <113MN/m3 that meets the performancerequirement of Approved Document E for usein external masonry walls.

Staifix RT2 Type 2 Tie(Masonry General Purpose)The Staifix RT2 is a general purpose tie. It issuitable for cavities from 50mm to 125mm andcan be used for domestic houses and smallcommercial buildings up to 15 metres inheight. In many cases, Staifix RT2 wall ties canbe used in buildings greater than 15 metres ifshown to be adequate by calculation. Forfurther information please contact Ancon’sTechnical Services Team. The Staifix RT2 hasBBA approval and meets the technicalrequirements of the NHBC. The RT2 has ameasured dynamic stiffness of <113MN/m3

that meets the performance requirement ofApproved Document E for use in externalmasonry walls.

Staifix HRT4 Type 4 Tie(Masonry Light Duty)The Staifix HRT4 is a housing tie suitable forcavities from 50mm to 100mm in domestichouses up to 10 metres in height. The StaifixHRT4 has BBA approval and meets thetechnical requirements of the NHBC.Independent tests have proven the StaifixHRT4 has a measured dynamic stiffness of<4.8MN/m3 at a 50mm cavity and is thereforesuitable for separating (party) walls. The HRT4can be used with all approved robust detailsfor cavity masonry separating walls, whethertraditional or thin-joint blockwork. Use of thesedetails eliminates the need for pre-completionsound testing.

Staifix HRT4200mm for 50-75mm cavities225mm for 76-100mm cavities

Patent Nos. GB 2359831IE 83574

U.K. Patent Nos. 2 255 3582 260 3482 260 349

Patent Nos. GB 2359831IE 83574

Ancon ST1200mm for 50-75mm cavities225mm for 76-100mm cavities250mm for 101-125mm cavities275mm for 126-150mm cavities300mm for 150mm cavities


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TIES FOR THIN-JOINT BLOCKWORKThin-joint construction prevents the use oftraditional cavity wall ties requiring embedmentin 10mm joints and coursing between the innerand outer leaves. The joints in the inner leaf ofblockwork are reduced to 3mm or less by theuse of special thin-joint mortar designed tospeed the rate of construction.

Staifix-Thor Helical TJ2 Wall TieThe TJ2 wall tie hammers directly into aeratedconcrete blocks, through insulation material,and is built into the bed joints of the outer leafof brickwork. It is ideal for thin-joint blockworkand other applications where the joints in theinner and outer leaves are not aligned. This tiemeets the requirements of the NHBC, BS EN845-1 and BS 5628-1 as a type 2, 3 or 4 walltie depending on the block used and the cavitywidth. Tools are available to simplify installation.

The helix of the Staifix-Thor Helical range issuperior to other helical fixings. Each rotationinterlocks perfectly down its lengthguaranteeing maximum performance.

The black Staifix TJ Clip is designed for usewith TJ2 wall ties.

Embedment Depths

TJ2 to BS 5628-1

Block Strength Tie Type to BS 5628-1N/mm2 ≤ 100mm Cavity 125mm Cavity

2.8 4 4

3.5 - 4.0 3 4

7.0 - 10.5 2 3

Recommended Lengths

Cavity Width (mm) Tie Length (mm)

50 205

75 230

100 255

125 280

150 305

TIES FOR TIMBER FRAMES

Staifix Timber Frame TieThe Staifix Timber Frame Tie is designed to fixbrickwork or blockwork to timber-framedstructures up to 4 storeys in height.

Available in three lengths to suit 50mm, 75mmand 100mm cavities, the Staifix Timber FrameTie is supplied complete with an annular ringshank nail. The tie is cranked to simplifycorrect installation and to prevent moisturefrom crossing the cavity.

The Staifix Timber Frame Tie meets therequirements of BS 5268-6: 1 as a Type 6 tie and meets the technical requirements of the NHBC.

Timber Frame Ties should be installed at adensity of 4.4 ties per square metre inbuildings where the basic wind speed doesnot exceed 25m/s (BS 6399-2: 1997 Code ofPractice for Wind Loads). The density shouldbe increased to 7 ties per square metre inmore severe situations.

85mm 70mm

Available to suit 50mm, 75mm and 100mm cavities.

Staifix Timber Frame Tie

Staifix-Thor Helical TJ2European Patent No. 1307303

Note: For maximum building height and restrictions based on geographical location please refer to page 4.

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TIES FOR STEEL STUDWORK

Ancon 25/14 Restraint SystemThe Ancon 25/14 channel system is designedto tie brickwork to steel studding. Self-drillingscrews fix through the channel and theinsulation material, into the steel. Once thechannel is installed, Ancon SD25 wall ties canbe positioned at any point along its length andare built into the bed joints of the outer leaf ofbrickwork.

The spacing of ties is based on the height ofthe building and its geographical location.The table below should be used in conjunctionwith the wind speed map on page 4.

Ancon recommends that wall ties achieve aminimum embedment of 62.5mm in the outerleaf of brickwork. Applications with a 50mmopen cavity require 100mm long ties.

25/14 channel features pre-punched holes atclose centres to ensure a fixing position isalways located near the end, even when it iscut on site. It should be fixed to steel studworkat 450mm vertical centres.

Screws are available to accommodate aninsulation thickness of up to 70mm. Anconrecommends the use of stainless steel fixingscrews.

The channel has a 16mm opening to easilyaccommodate a drive socket and washer forthe fixing screws.

This system has been independently tested atCERAM Building Technology and meets thetechnical requirements of the NHBC.

Vertical Tie Spacing(mm) for Various

Altitude and Distance Heights of Brickworkfrom the Coast 15m 25m 40m

Altitude up to 150m and at450 225 225least 50km from coast

Altitude up to 25m and within450 300 22550km from coast

Tie Spacing Based on 25/14 Channel at600mm Horizontal Centres with Basic WindSpeed < 25m/s

Ancon 25/14 Channelwith SD25 Wall Tie

25/14 Channel Profile

16mm25mm

14mm


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<20 75

20-44 100

45-69 125

70-94 150

95-119 175

120-144 200

145-169 225


50-75 200

76-100 225

101-125 250

126-150 275/300*

*ST1 300mm ties are ideal for 150mm cavities. Theyshould be embedded 85mm in the inner leaf, whichhelps keep the tie horizontal during the build.

STANDARD WALL TIESLengths shown in red italics refer to itemsnormally available at all times. Reasonablequantities can be delivered to customers within24 hours of our acceptance of an order.

Ancon and Staifix wall ties are also availablefrom builders merchants and other specialistdistributors. For further information regardingthe availability of any of our fixings pleasecontact our sales staff.

Ancon’s Technical Services Team will bepleased to advise on the correct selection anduse of our wall ties.

ST1Lengths 200, 225, 250, 275, 300mmConforms to BS 5628-1 as a Type 1 tieU.K. Patent Nos. 2 255 358,2 260 348 & 2 260 349

SD1Lengths 200, 225, 250, 275, 300mm Conforms to BS 5628-1 as a Type 1 tieAlso available with a central drip

HRT4Lengths 200 , 225mmConforms to EN 845-1 and BS 5628-1as a Type 4 tiePatent Nos. GB 2359831

IE 83574

Suitable for party walls

Double TriangleLengths 150 *, 200 *, 225 *, 250 **, 300 **mm*Conforms to EN 845-1 and BS 5628-1 as a Type 2 tie**Conforms to EN 845-1 andBS 5628-1 as a Type 3 tie

SPBLengths 75, 100, 125, 150,175, 200mm

SDBLengths 125, 150, 175, 200,225 mm

PPBLengths 125, 150, 175, 200,225mm

SPVLengths 75, 100, 125, 150, 175, 200 mm.

SDVLengths 125, 150, 175, 200, 225mm

PPVLengths 125, 150, 175, 200,225mm

SP21Lengths 75, 100, 125, 150,175, 200mmFor use with 21/18 Omega Channel

SD21Lengths 125, 150, 175, 200,225mmFor use with 21/18Omega Channel

SHXLengths 150, 175, 200,225mm

PP21Lengths 125, 150, 175, 200,225mmFor use with 21/18 Omega Channel

90mm

90mm

90mm

90mm

L

L

WHXLengths 150, 175, 200mm

SRBLengths 125, 150, 175, 200mm

SPSLengths 150, 200, 225,250, 275, 300mm(Not suitable for collar-jointed construction. See below)

PPSLengths 225, 250mm

SPS CJLength 150mm(3mm thickness for collar-jointed construction)

Patent No.2 291 080

L

Recommended Lengths forMasonry/Masonry Wall Ties

Recommended Lengths for Frame Crampsand Cast-in Channel Ties

Cavity Starter TieSupplied with an 8mmnylon wall plug and neoprene ringLengths 180, 200, 230mm

Frame TieLength 130 mm

Starter TieSupplied with an 8mm nylon wall plugLength 135 mm

LRT2Lengths 200, 225, 250mmConforms to EN 845-1 and BS 5628-1 as a Type 2 tiePatent Nos. GB 2359831

IE 83574

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REFERENCES FOR WALL TIESMany variations are available in addition to thestandard ties. Wall ties for special applicationsmay be specified and ordered with ease byusing a reference letter for the tail, shank andhead of the tie.

Ancon ties are produced in lengths from150mm for masonry-to-masonry ties, and75mm for masonry-to-concrete ties, inincrements of 25mm. Drips will usually bepositioned 90mm from the outer end of the tie(first reference letter). Masonry-to-masonry tiescan also be supplied with a central drip.Special wall ties with a section wider than20mm referenced S_ _, will have an end withthree holes without the side notches.

Diameter 80mm

Head 21

Shank D

Tail S

Ancon SD21wall tie

Example usingReference System

TAILMost can be used ateither end of tie

SHANK

HEAD

L _ _

S _ _

_ D _

_ P _

_ V _

_ F _

_ H _

P _ _

D _ _

Y _ _

M_ _

W _ _

T _ _

Z _ _

Manufacturedto suit

25mm

10mm6x60mm loosedowel

6x60mm loosedowel

6x60mm weldeddowel

L

L

10mm

10mm

10

20

50

30

10

10

8x30mm slot

7mm diameter hole

L

L

10mm

To fit 21/18Omega Channel

_ _ 25 To fit 25/14_ _ 28 To fit 28/15_ _ 30 To fit 30/20_ _ 36 To fit 36/8 _ _ 38* To fit 38/17

*Tie will be 25mm wide

7mm diameter hole

Tie will be 25mmwide

105mm

_ _ V_ _ U without slot

_ _ B

_ _ 21

_ _ X

_ _ G

30

Insulation RetainerThe H75/2 Insulation Retainer is for securingmaterial to concrete, blockwork and brickwork.The 90mm diameter head can hold back up to75mm of insulation. A 10mm diameter hole isrequired in the base material. The projectingend of the retainer is pushed through theinsulation material into the hole and tappedinto position to secure the insulation.

Universal Insulation Retaining Clips (Uni)The red Staifix Insulation Retaining Clip will fitall the standard ties shown on page 10.

6.5mmdiameter holes

15mm15mm

Debonding SleevesDebonded Ties require 100mm embedment.A 120mm long sleeve will provide anallowance for movement and tolerance, andwill be suitable for most applications. Otherlengths and sizes available tospecial order.

VERTICAL MOVEMENT JOINTSDebonding sleeves are used on plain-endedwall ties, like the Ancon PP21 or PPB, atvertical movement joints. The tie will restrainthe masonry against lateral wind loads but thesleeve will allow the masonry to expand orcontract. Debonding sleeves should beinstalled with a 10mm gap at the end to allowfor expansion of the masonry.

External Corner with Fully BondedBrickwork

Note: All spacings are maximums. The type of cavity wall tie and spacing will be determined by the cavity width, heightof brickwork, wind loading and type of building. See page 4 for further information.

Intermediate Column with VerticalMovement Joints in Blockwork

Intermediate Column with VerticalMovement Joints in both Brickwork andBlockwork

Intermediate Column with Vertical Movement Joint in Brickwork and Blockwork

225mm 225mm

450mm to 900mm

Ancon PP21 wall ties with debonding sleeves,at 450mm vertical centres

Staifix RT2 wall ties at450mm vertical centres inalternate courses to AnconPP21 Wall Ties

Ancon PP21 wall ties with debondingsleeves, at 450mmvertical centres

Ancon PP21 wall ties withdebonding sleeves, at450mm vertical centres

Ancon SD21 wallties at 450mmvertical centres

Ancon ST1wall tie

Ancon ST1 wall tie

Ancon ST1wall tie

Ancon PP21wall tie withdebondingsleeve

Ancon PPS walltie with debondingsleeve

Ancon 21/18 Omega channel

Ancon PPS wall tieswith debondingsleeves, at 450mmvertical centres

450mm 450mm

Ancon PPS Wall Tie withDebonding Sleeve

Cavity Wall with Vertical Movement Joint in Brickwork

225mm 225mm

Ancon PPS wall ties with debondingsleeves, at 450mm vertical centres

Ancon ST1wall tie

10mmGap

Debonding sleeves should be pulled back 10mm to allow expansionas well as contraction of brickwork


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Cavity Width (mm) Length of Wall Tie (mm) Frame Cramp/Channel Tie

20-44 100 SPB/SP2145-69 125 SDB/SD2170-94 150 SDB/SD2195-119 175 SDB SD21120-144 200 SDB/SD21145-169 225 SDB/SD21

ANCON FRAME CRAMPSFrame cramps can be fixed to concrete,steelwork or masonry and have a single 7mmdiameter hole or an 8mm x 30mm vertical slot.Ancon M6 Single Expansion bolts arerecommended for fixing to concrete, setscrews or self-drilling screws for steelwork,and suitable plugs and screws for fixing tomasonry. Large washers must be used with allSDVs and similar ties with a slot. Other fixingsmay also be suitable.

Poor substrates will limit the capacity of framecramps and site testing may be advisable insome cases. The performance will also bedetermined by the position of the fixing. SDVties fixed to steelwork or concrete at thelowest point of the slot will have a safe workingload of approximately 1kN. The capacity willreduce as the fixing is moved further awayfrom the bend and greater movement must beexpected than with other types of wall tie.Ancon SDB Frame Cramps have a safeworking load of approximately 500N,comparable to the load of an SDV when fixedin the centre of the slot.

Ancon isolation sleeves and pads are suppliedblank for use with self-drilling screws to isolatestainless steel frame cramps from mild steel.Self-adhesive isolation pads are also availablefor _ _B (20 x 30mm) and _ _ V (25 x 50mm)referenced frame cramps.

Where masonry is in line with a column flange,frame cramps can be supplied with an offsetangle section instead of an upstand. Thisangle allows the mechanical fixing to besuitably located. These ties are referencedSPA. They feature a 7mm hole as standardand can be used with a debonding sleeve ifrequired at a movement joint. The thickness,size and shape of the angle section aredesigned to suit each application. ContactAncon’s Technical Department for moreinformation.

Ancon HiT - Hammer-in TieThe Ancon HiT fixes masonry to concrete,dense blocks (>_7N/mm2), non-perforated brickor hard stone. It can reduce the variety of tielengths required on site and speed the rate ofconstruction. The HiT is available in a standardlength of 310mm that is bent on site with aspecial installation tool to suit all cavities up to150mm. Unlike conventional frame cramps itdoes not require a mechanical fixing, but ishammered into a plug. The Ancon HiT meetsthe requirements of BS 5628-1 as a Type 2 tie.A neoprene 'O' ring must be installed on thetie to prevent moisture crossing the cavity.

Recommended Safe Working Loads for 20 x 2.5mm Section Frame Cramps

SDV Wall Tie

90mm

1000900800700600500400300200100

0SDV

Fixing atbottom of slot

N

SDVFixing in

centre of slot

SDVFixing at

top of slot

90mm 90mm

Length Length

EmbedmentEmbedment

SDB Wall Tie Fixed to Steelwith Self-Drilling Screw

Isolation Sleeve

Adhesive IsolationPad SD21 Wall Tie Fixed into 21/18

Omega Channel

Recommended Lengths of Frame Cramps and Channel Ties

SDB Wall Tie

90mm

Ancon Hammer-in Tie (310mm)

Note: Frame cramps should have a minimum embedment of 50mm in the outer leaf. Taking site tolerances into account,Ancon suggests tie lengths which achieve a greater embedment.

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Ancon SPA framecramp at 450mmvertical centres

Length to suitapplication

Angle to suitapplication

SPA Frame Cramp Fixed to Steel with M6Isolated Set Screws

SPA Frame Cramp

Hammer-On FlangeSection ThicknessRef Accommodated

XS 7-10mmS 10-13mmM 14-17mmL 18-21mmXL 22-25mm

Hammer-On Tie (Debonded HOS-TIE,pictured above, supplied complete withHammer-On Section)

Hammer-On Section

Hammer-On Tie

Hammer-On Ties installed toalternate sides of the columnat 225mm vertical centres


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Hammer-On SectionAvailable in five sizes to accommodate a steelthickness from 7mm to 25mm, this fixing issimply hammered onto the flange. It can beutilised either on a column with a tie or on abeam with an internal head restraint.

NON-DRILL FIXINGS FORSTEELWORKAncon’s range of ‘NON-DRILL’ masonry-to-steel fixing solutions was developed to addressthe safety concerns of the Industry.

Driven by customer demand for masonryrestraint fixings with an alternate installationmethod from either shot-firing or drilling,Ancon engineered the innovative solutionsdetailed here. These fixings do not require theuse of power tools and can reduce installationtimes and costs. In all instances they simplyabut the column or attach to the flange torestrain the wall against lateral wind loads.

Design SheetsContact Ancon on +44 (0) 114 275 5224 orvisit www.ancon.co.uk for a Non-Drill FixingsDesign Sheet. This sheet summarises all theinformation required by Ancon to specify/quotefor the most appropriate non-drill fixing to suityour application.

Ancon NON-DRILL fixings:• Eliminate the dangers associated with shot-

firing and drilling• Quick, simple and economical to install• No power tools required• No special skills or equipment required• Fixings either abut the column or attach to

the flange

The Hammer-On Section resists load inone direction only and should be installedon alternate sides of the flange.

Hammer-On Ties should be installed at225mm vertical centres and Hammer-On HeadRestraints at 450mm horizontal centres. Thewall tie (HOS-TIE) or head restraint (IHR-H)should be positioned central to the masonryleaf when located in one of the five fixing slots.For more information on the IHR-H HeadRestraint see page 16.

Hammer-On Ties can resist a load of 900N.When fixed at 225mm vertical centres,staggered on alternate sides of the columnflange (effective centres 450mm on each side)the service load will be 2kN per metre in eitherdirection.

Product Code Length Open Cavity* Flange Thickness

Briclok150A 150mm 20-50mm 6.8-13.5mmBriclok180A 180mm 50-80mm 6.8-13.5mmBriclok150B 150mm 20-50mm 13.5-20.0mmBriclok180B 180mm 50-80mm 13.5-20.0mm* Open cavity at column face.

Length Beam/Column (mm) Accommodated

179 203 x 203 UC186 203 x 133 UB224 254 x 254 UC232 254 x 146 UB275 305 x 305 UC281 305 x 127 & 165 UB330 356 x 127 & 171 UB

Column Tie

Internal Column TieAvailable in seven lengths, this tie fits betweenthe flanges of a column and should beinstalled at 225mm vertical centres.

Internal column ties exceed the requirementsfor a Type 2 tie to BS 5628-1.

Non-Standard Internal Column TieSpecial internal column ties can be designed tosuit applications where the masonry does notsit inside the flanges of a column. The drawingprovides some guidance on dimensions;contact Ancon for more information.

Non-standard internal column ties exceed therequirements for a Type 2 tie to BS 5628-1.

New BriclokThe Briclok fits to a column flange and can beused either across a cavity or back into theinner leaf. It should be positioned with theappropriate notch around the flange andinstalled at 225mm vertical centres. The tiemust not be forced onto the column andshould have no less than 10mm engagement.Two types (A and B) accommodate a steelthickness from 6.8mm to 20mm and areavailable in two lengths to suit an open cavityfrom 20mm to 80mm.

Briclok ties exceed the requirements for aType 2 tie to BS 5628-1.

Column TieThe Column Tie clamps to the flange of acolumn. It accommodates a steel thicknessfrom 6mm to 25mm and should be installed at225mm vertical centres. Manufactured inlengths to suit the application, it can feature adrip for use across the cavity or a plain shankfor installation back into the inner leaf.

Avoiding Bi-Metallic CorrosionBi-metallic corrosion may occur in a dampenvironment where stainless steel fixings are incontact with a structural steel frame. This willnot affect the stainless steel but may causeslight surface corrosion to the mild steel. Bestpractice is to isolate the two dissimilar metals.Bitumen paint or some other form of isolatione.g. adhesive tape, applied at the point ofcontact will prevent this corrosion.

Non-StandardInternal Column Tie

Internal Column Tie

Briclok A

Briclok B

15mm

50mm 50mm

60mm 40mm

15mm

6.8-10.3mm

10.0-13.5mm

Staifix RT2 WallTies at 450mmvertical centres

Ancon Briclokat 450mmvertical centres

Ancon Briclokat 450mmvertical centresMovement joint

450mm 450mm

150, 180mm

150, 180mm

Length

13.5-17.0mm

16.5-20.0mm

15


*


16

Ancon FHR - Head RestraintThe Ancon FHR Head Restraint is used forrestraining the top of internal walls or theinternal leaf of a cavity wall. The two anglesclamp the top of the wall and have 10mmdiameter holes to suit M8 bolts. They aresupplied with two holes in the longer angle toallow the restraint to fit 100mm and 140mmblockwork. Each restraint can resist a serviceload of 1kN.

*The IHR-H can resist a load of 1kN. When fixed at 450mm centres staggered each side of the lower beam flange (effectivecentres 900mm on each side) the service load will be 1.1kN per metre in either direction.

ANCON HEAD RESTRAINTS Ancon Head Restraints provide the necessaryrestraint to the top of masonry walls. Theyallow for vertical movement to accommodateshrinkage or thermal movement of the wall orstructural frame, while restraining wind loads.

Ancon IHR - Internal Head RestraintThe Ancon IHR is used for restraining the topof internal walls or the top of the inner leaf of acavity wall. The opening at the front of thechannel stem is sealed to prevent mortaringress and to ensure that vertical movementcan take place between the blockwork and thestructure. The base of the stem must be builtwithin a bed joint with the centre of the stemno closer than 50mm from the edge of theblock. The vertical joint should be filled withmortar each side of the stem. The maximumjoint between the top of the blockwork and theunderside of the frame should not be greaterthan 25mm.

The sliding tie can be provided with either a hole(IHR - B) or slot (IHR - V) to suit M8 bolts, with anotch end to fix directly into a 38/17 or 30/20cast-in channel (IHR - C) and with a notch endto suit the Hammer-On Section (page 14) thatattaches to a steel flange without site drilling(IHR - H). The standard Ancon IHR will suit a215mm high block and can resist a load of1.5kN*. Other sizes between 150 - 250mm are available.

Ancon IHR - B Bolted to Concrete,Restraining Top of Inner Block Wall

To suit 100mm and140mm Blockwork

Ancon IHR-H Hammer-On Head Restraint

Ancon FHR Head Restraint - other sizesavailable

Ancon FHR Head Restraint Fixed toUnderside of Floor Slab, Restraining Headof Inner Leaf of Cavity Wall

Ancon IHR - Cto suit Cast-inChannel

IHR - C 38to suit 38/17

IHR - C 30to suit 30/20

Ancon IHR - Vwith Slot

Ancon IHR - H*supplied withHammer-On Section

Ancon IHR - Bwith Hole

75mm

25mmmax.

25mmmax.

50mmmin.

215mm

17


38mm45mm

25mm

15mm 15mm130mm 130mm

95mm50mm

15mm

160mm

160mm

160mm

38mm

SAH - T SAH - U SAH - UF

340mmmin. 600mmmax.

340mmmin. 600mmmax.

340mmmin.

600mmmax.

340mmmin. 600mmmax.

340mmmin.

600mmmax. 340mm

min. 600mmmax.

SAH - UO

SIS

SPI

SAH - UT SAH - UC

Length and slotposition to suitapplication


Head dimensions and hole positions are variable.

Off-setto suit

SAH - UF SAH - UO withExtended Head

Ancon SAH - Sliding AnchorsAncon SAH Sliding Anchors have stemswhich fit within the cavity and accept tiesthat slide to accommodate vertical movement.Available with six different head options asstandard, they are supplied with one-way ortwo-way ties with safety ends.

The standard fixing hole is 12mm diameter tosuit Ancon M10 Single Expansion Bolts orM10 T Head Bolts to fit Ancon 28/15 Channel.Ancon SAH Sliding Anchors have 25 x 5mmstems and a maximum service capacity of 1kNper stem when the upper tie is within 75mm ofthe fixing. Ties should be spaced at aminimum of 150mm and at least two tiesshould be used per stem.

These drawings are examples only. All slidinganchors are manufactured to suit individualrequirements.

75mmmax.

75mmmax.


18

Fixing Method Omega 21/18 25/14 28/15 30/20 38/17 36/8

Cast-in

Surface Fixed

SWL (tension) 25/14 28/15 38/17 36/8

0.5kN 337 525 650 300

1.0kN - 400 525 -

Fixing of Channel

Maximum Centres for Surface-Fixing

Ancon Fastrack Channels 100mm long with SD28 Tie

Fastrack used with DD28 Tie for Stonework

Fastrack used with SD28 Tie for Brickwork

ANCON FASTRACKBuilding one leaf of the cavity wall in advanceof the other is often beneficial but can createproblems with coursing. Buildings whichincorporate imperial or continental bricks andstandard metric blocks present even greaterdifficulties.

Ancon Fastrack Channel is built into the innerleaf of blockwork ready to take an AnconSD28 or similar tie for the outer leaf. Thismethod of construction avoids the dangers of projecting ties.

Ancon Fastrack Channels and Ties can besupplied in different lengths and can also beused for tying stonework to blockwork if DD28or similar Ancon Ties are used.

The recommended tie length for use with afastrack channel is ‘cavity width plus 50mm’.

Ancon Fastrack Channels and Ties sustainloads which exceed the requirements for aType 2 tie to BS 5628-1. This system can alsobe manufactured in a 36/8 channel profile thataccepts wall ties referenced _ _ 36.

Ancon 25/14, 28/15, 30/20, 38/17, and 36/8 ChannelsAncon wall ties can also be used with our25/14, 28/15, 30/20, 38/17 and 36/8channels. 30/20 Channel is supplied withanchors for casting into concrete. 25/14 and36/8 Channels are supplied plain-backed forsurface fixing. 28/15 and 38/17 Channels areavailable with or without anchors for casting inor surface fixing. Ties for 38/17 channel will be25mm wide to accommodate the wideropening; all other channel ties will be 20mmwide. Wall ties used with Ancon 28/15, 30/20,38/17 channel will provide safe working shearand tensile loads of up to 1.0kN, while wall tiesused with 25/14 and 36/8 channels will provideup to 0.5kN. Maximum safe working loads ofsurface-fixed channels will be subject tosuitable fixings, and appropriate fixing centres.

Available Lengths of Ancon 21/18 Omega Channel100, 3000mm U.K Patent No. 2 249 110

Ancon 21/18 Omega Channel with AnconSD21 Tie

ANCON CHANNELSAncon 21/18 Omega ChannelAncon 21/18 Omega Channel is a highperformance, self-anchoring, cast-in channelslot suitable for use with our wall ties toprovide the necessary restraint to the outer leafof masonry. The section is only 18mm deepand can be used where there is reduced coverto reinforcement. Available in 100mm and3000mm lengths, Ancon 21/18 OmegaChannel is filled with polystyrene to helpprevent the ingress of concrete. Nail holes aidthe fixing of the slot to timber formwork. Wallties used with Ancon 21/18 Omega Channelwill provide safe working shear and tensileloads of 1.5kN.

✔ ✘ ✔ ✔ ✔ ✘✘ ✔ ✔ ✘ ✔ ✔

19


Staifix Cavity Starter TieThis tie simplifies the building of an inner leaf of blockwork within an existing structure. It isideal for barn conversions. See page 10 formore details about this tie.

WALL STARTER SYSTEMS36/8 Wall Extension SystemThe 36/8 Wall Extension System can be suppliedwith either SP36 ties or, where some longitudinalmovement must be accommodated at thejoint, PP36 ties complete with debondingsleeves. The channel can be supplied inlengths of up to 3.4 metres with each lengthhaving a series of holes to allow fixing to theexisting wall. The system is available as a kitcomprising a length of 36/8 channel 2400mmlong, six ties and five plugs and screws.

Staifix Universal Wall Starter SystemThis system includes all necessary fixings tojoin a single skin of masonry, 2400mm high, to an existing wall. Each pack includes 2 fixingstrips, 5 plugs, 5 washers, 5 screws and 10 wall ties. Suitable for wall widths from 60mmto 250mm and masonry up to 8 metres inheight, this system will resist a wind load of upto 4.5kN over a height of 2400mm. Wall Tiesslide within the fixing strip to course with thebed joints of any masonry unit. This UniversalWall Starter System meets the technicalrequirements of the NHBC.

Staifix Starter TieThis tie is quick and simple to install. It issuitable for use in brickwork and blockwork ofup to 3 storeys or 8 metres in height andmeets the technical requirements of the NHBC.

Staifix Frame TieThe Staifix Frame Tie is used to join timberdoor and window frames directly to brickwork.It is designed for use on buildings of up to 15metres in height, and meets the technicalrequirements of the NHBC. The ties arescrewed horizontally into the frame,surrounded by mortar and built into the bedjoints of the new brickwork.

The vertical spacing of frame ties depends onthe application. Please contact Ancon or yourlocal Staifix stockist for more information.

36/8 Wall Extension System, PP36 Tie

36/8 Wall Extension System, SP36 Tie

Staifix Universal Wall Starter System

Existing Outer LeafNew Inner LeafSupplied complete with an 8mm nylon wallplug, the Starter Tie is fixed into the existingwall at an angle of 30° to the horizontal andbent into the bed joints of the new brickwork.Ties should be fixed at 225mm vertical centresand be central to each leaf of the new wall.

Installation of Staifix TE-ITC2 Wall Ties

Embedment

Insulation retainingclip

Bubble foil insulation

Embedment

Multiple drips

Cavity width

Staifix TE-ITC2Patents applied for

Staifix TE-ITB4*Lengths 185, 200mmPatents applied for

*

ANCON TWO-PART TIECavities exceeding 150mm are sometimesrequired. This necessitates longer ties whichcan be difficult to balance and keep horizontalwhen built into the inner leaf. The AnconTwo-Part Tie has one section built into theblockwork; the other section is then fixed as theouter leaf is built. The inner tie is usuallymanufactured in lengths of 170mm. Variation inthe cavity width is accommodated by the lengthof the outer tie.

Ancon Two-Part Ties sustain loads whichexceed the requirements for a Type 2 tie toBS 5628-1 for cavities up to 300mm. Anembedment of 75mm is required at each end.These ties can also be used for larger cavitiesproviding the fixing centres are adjusted inaccordance with the adjacent table.

To specify this tie simply quote ‘Ancon Two-PartTie to suit _ _ _mm cavity’. Insulation RetainingClips can be supplied to fit the inner section.

TIES FOR BUBBLE FOIL INSULATIONA range of ties are manufactured under licensefrom Thermal Economics Ltd for use withBubble Foil Insulation. These ties have beendesigned to BS 5628-1 and are available asType 2 and Type 4 ties. ITB referenced tiesenable the insulation material to be installedflush to the blockwork. ITC referenced tiesposition the insulation 25mm away from theblock. These ties meet the technicalrequirements of the NHBC.

U.K. Patent No.2 265 920

Outer Section

170mm


Inner Section

BS 5628-1 Length Cavity RangeReference Type (mm) (mm)

TE-ITB4-185 4 185 50-60

TE-ITB4-200 4 200 60-75

TE-ITC4-200 4 200 60-75

TE-ITB2-200 2 200 60-75

TE-ITC2-200 2 200 60-75

TE-ITC2-225 2 225 85-100

Note: Refer to page 4 for more information on Type 4and Type 2 ties.


20

ANCON SLIP-BRICK TIESAncon Slip-Brick Ties are bolted directly toblockwork or concrete to give both supportand restraint to thin slip brick facings. Inaddition to the standard three brick version,slip brick ties can bemanufactured in othermultiples on request.

Cavity Vertical Horizontal(mm) centres (mm) centres (mm)

150-300 450 900

301-333 450 750

334-367 450 600

368-400 450 450

Recommended Fixing Centres forTwo-Part Ties

Ancon YDB Ties Fixed to Blockwork

RESTRAINTS FOR STONE CLADDINGReference should be made to BS 8298: 1994“Design and installation of natural stonecladding”, when selecting ties for restrainingstone cladding. Restraints should be designedto resist wind loads and any imposed loadsfrom, for example, window cleaning equipment.

Each stone will normally be restrained in fourplaces, two at the top and two at the bottom.These are usually situated in the horizontaljoints. The restraints should be located in pre-formed mortises or holes positioned in thecentre of the thickness of the stone panel, andlocated at 1/4 points for half bonded stonesand 1/5 points for stack bonded stones.Restraints should be kept at least 75mm fromany corner with the peripheral distances betweenany two restraints not exceeding 1200mm (seepage 23).

The embedment of restraint dowels and lips into the stone should be at least 20mm. To achieve this lipped ties, (LPBs) have a25mm downstand and dowelled ties (DPBsand YPBs) have 60mm long dowels.

Buchanan Galleries, Glasgow

21



22

Ancon LD21 Ties Fixed into 21/18 Omega Channel, Restraining Top of Stone

Section of TiesMinimum sections for restraints for variousthickness of stone are shown in the tablebelow. Restraints for large stones and for usewhere cavities are in excess of 100mm mayrequire special attention. They may need amuch bigger section than 20 x 2.5mm; tiesformed from 20 x 3mm, 25 x 3mm, 30 x 3mmand 30 x 4mm are frequently used forrestraining stone cladding.

Drip PositionDue to the wide varieties of design cavity andstone and insulation thickness it is not possibleto standardise the position of any requireddrip. If a drip is required (e.g. YDB) pleasespecify the position clearly, indicating fromwhich end of the tie the measurement is taken.

DowelsStandard dowels are 6mm in diameter and60mm long. These will be welded into the tailend of ties referenced D__, and supplied loosewith ties referenced Y__ and the multi-holedM__. 8mm and 10mm diameter dowels arealso available and will usually be suppliedwhere larger section ties are required.

Wire TiesThe traditional method of fixing thin marble,particularly for internal linings and low risecladding is with wire ties and plaster or mortardabs. Wire ties are manufactured from 3mmand 5mm diameter wire.

Minimum Section Stone Thickness of Restraint

30mm and below 3mm dia wire

40mm 5mm dia wire

50mm and above 20 x 2.5mm

WTA

WTB

WTC

Min length 40mm

Min length 40mm

6x60mm loose dowel

Min length 40mm

6x60mm welded dowel

Min length 40mm

6x60mm welded dowel

Min length 70mm

6x60mm loose dowel

Min length 70mm

6x60mm loose dowel

Min length 75mm

YP21

YDB

MP21

Min length 120mm

6x60mm welded dowel

Min length 110mm

Min length 120mm

6x60mm loose dowel

Min length 140mm

6x60mm loose dowel

Min length 35mm

Min length 40mm

6x60mm loose dowel

Minimum Section of Restraints

MPB

MDS

DP21

DPB

YPB

LP21

LPB

ZDS

DDS

LPL

WTD

23


Two Ancon YPB Ties Restraining Coping Stone

More than 3.7m above Soffits - including Sills, copings andground - including facias inlined soffits supported reveals

Type of Stone T (mm) t (mm) T (mm) t (mm) T (mm) t (mm)

Granite, slate, white 40 15 40 15 30 12marble, quartzitesHard limestone, 40 15 40 15 30 12travertinesLimestone, 75 30* 75 30* 50 20*sandstone

* t = T/2 if stone thickness (T) is greater than 75mm

Minimum Stone Thickness ‘T’ and Minimum Dimension Behind Restraint ‘t’

20mm

20mm

T/2

T/2

TW

1200mm max.20mm

75mm

t

t

1200

mm

max

.

W/5 Stack bonded stone

W/4 Half bonded stone

Recommended Restraint Positions in Stone Cladding


24

Facing Cavity Safe WorkingThickness Min. Max. Hole Size Load*

Reference (mm) (mm) (mm) (mm) (N)

2000/A20 25 70 8 x 90 600

25 22 67 8 x 90 600

2000/B30 30 75 8 x 90 600

40 25 70 8 x 90 600

20 60 105 8 x 90 600

2000 - 7525 57 102 8 x 90 600

30 55 100 8 x 90 600

40 50 95 8 x 90 600

Other sizes available to order. *In grade 30N/mm2 concrete

Ancon 150The Ancon 150 is a grout-in masonry tie forthe restraint of 20 to 30mm thin facings, andsuitable for cavities up to 60mm wide. The 12x 2mm corrugated body provides optimumbond in a 12 x 90mm hole. The 50 x 3mmdowel is supplied loose.

Facing thickness

Ancon 2000Ancon 2000 restraint fixings are a simple andsecure method of fixing thin facing slabs. Thefixing is quickly and easily installed with thesmall diameter hole giving lower drilling costsand minimum disturbance to the structure.Vertical and lateral adjustment is provided bythe slotted holes in the fixing clip.

Ancon 2000

Cavity

Stone Insulation Inner Leaf

Ancon Push-Off BoltThe Push-Off Bolt provides the centre of stonepanels with additional resistance to the effectsof impact loads, blast loads and positive windpressure. The Bolt features a mechanicalexpander at one end which fixes securely intothe inner leaf. The external stone panel ispositioned with its inner face flush to the bolt’sneoprene pad, which cushions the surface andprevents any rattling. The Push-Off Bolt issupplied in a variety of lengths to suit cavitiesfrom 100 to 200mm.

Ancon 2000 Thin Facing Restraints

Ancon 150

Museum of Scotland, Edinburgh

Push-Off Bolt

25


Compressive FailureStrength Load

Base Material (N/mm2) (kN)

Hard Brick 27.5 5.1

Soft Brick 17.0 3.7

Portland Stone 20.0 5.2

Concrete Block 7.0 1.8

Note: Test results are an average of 20 No ties.

Cavity Widths Tie Lengths Drill Diameter Drill Depths(mm) (mm) (mm) (mm)

50-70 195 10.5 60-70

71-95 220 10.5 60-70

96-125 250 10.5 60-70

126-175* 300 10.5 60-70*or where greater embedment is required.Note: For cavities over 100mm horizontal spacing may need to be reduced to 450mm.

SpacingNo British Standard has yet been defined forthe spacing of remedial wall ties. However,accepted practice is to follow BS 5628 that is900mm horizontally and 450mm vertically in astaggered pattern with 300mm vertical centresaround openings within 225mm of the opening.

Installation of Remedial Wall TiesMechanical ties are easily installed by meansof two Setting Tools. The tie is fitted to thesetting tool for the inner leaf and inserted intoa pre-drilled hole in the wall. The required drilldepth for each tie is shown in the table below.The inner shell is expanded by turning thehandle. The tool for the outer leaf, with ahexagonal-shaped end, is then fitted andadjusted to expand the outer shell. Both toolsshould be turned until hand tight. The processis quick and simple and ensures that each tieis correctly installed.

Ancon 63 Setting Tools

Setting Tool - Outer

Setting Tool - Inner

REMEDIAL WALL TIES

Corrosion of Cavity Wall TiesWall ties are an essential element in thestability of masonry panels. Prior to 1978, wallties were usually manufactured from galvanisedmild steel. These ties were expected to last thelifetime of the building, but for many years ithas been recognised that some of these wallties have corroded after only 15 or 20 years.

When these ties corrode, they can expand to seven times their original thickness. This causes the brickwork to crack at themortar joints and can result in major damageand sometimes the collapse of walls.

It is crucial that the problem is identified asquickly as possible and the correct remedialaction undertaken.

Ancon 63 RangeThis is the original remedial wall tie which hasbeen used in various forms since 1972. The Ancon 63 range has been continuallyimproved to keep pace with changingrequirements. These ties are easy to install anda secure fixing is achieved with a minimumamount of disturbance.

Highly corrosion-resistant materials are usedthroughout the 63 range. The grade 304stainless steel body of the MM 63 hasexpansion shells at both ends for installationinto a 10.5mm diameter hole. A neoprene ringprevents moisture travelling past the centre ofthe tie.

Test ResultsThe '63 ties have been tested independently ina variety of materials using the standard '63tie, a summary of results is given in the table.The failure loads noted in the table areobtained from standard tests in brick coupletsand provide indicative values of tieperformance. The couplet test producesresults of a conservative nature compared toactual wall tests. Due to the variability ofmaterials, it is often prudent to undertake apull-out test on site, to verify the selection ofan appropriate tie.

Drill Depths

Failure Loads (Pull-Out) for the Ancon 63 Range

Compressive FailureStrength Load

Base Material (N/mm2) (kN)

Dense Concrete Block 7.0 - 10.5 5.78

Lightweight Concrete Block 2.8 - 3.5 2.87

Mortar Bed Joint, 1:1:6 Type (iii) BS 5628 - 5.37

Failure Loads (Pull-Out) for Staifix R/R


26

Temperature (˚C) in Substrate Setting Time- 5 360 mins

0 180 mins+ 5 90 mins+ 20 45 mins+ 30 30 mins+ 40 25 mins

Ancon 63 Mechanical/MechanicalUsed when tying together two leaves of solidmaterials, this tie has mechanical expanders ateach end. Requires 10.5mm holes.

Ancon 63 Resin/MechanicalFor use when the material in the inner leaf isperforated, of low-density or a friable material. Aresin fixing may be used to eliminate any imposedstress. Requires 10.5mm or 11mm holes.

Staifix Resin/ResinUsed where mechanical expanders areunusable. Normally inserted into a 10mm hole,but if test facilities are required, a 12mm holemust be used. A plastic sieve can be used toretain resin and is particularly useful inperforated brick or hollow blockwork. A 12mmhole is required to fit the sieve.

Stairib BarStainless steel ribbed bar, resin-grouted intothe inner and outer leaves.

Ancon AC 31Used where bricks are removed then replaced in the outer leaf. The wavy end is resin-bondedinto the inner leaf in a 10mm hole. The triangularend sits in the bed joint. Ancon AC 31 can besupplied with a drip or a neoprene ring.

Ancon AC 31CSimilar to the AC 31 but cranked by 25mm toaid fixing to the inner leaf.

Cameron T 47Used for the repair of mass brickwork with anunbonded brick façade, sometimes built fromsnapped headers. The T end is built into thebed joint and perpend, and hidden when thebrickwork is repointed.

HRT4/RUsed for tying the two leaves of a cavity wallor separating wall where the first leaf hasalready been built. The wavy end is resin-bonded into the existing wall in a 10mm hole.The tie is based on the Staifix HRT4 and hassimilar properties.

Type A R/RThis is designed as a remedial tie for aseparating wall. It will normally be inserted in10mm holes and resin-bonded into bothleaves. It meets the requirements of a Type Awall tie to Approved Document E.

Fischer FIS P 380 C ResinThis styrene-free injection resin is quick settingand suitable for a wide range of applications.The two components are safely mixedtogether inside the nozzle. Automatic mixingensures an accurate blending of thecomponents and, being mixed only asrequired, the minimum of wastage. Resin gunsand additional mixing nozzles are available.

Ancon MM 63195mm for 50-70mm cavities220mm for 71-95mm cavities250mm for 96-125mm cavities300mm for 126-175mm cavities

Ancon RM 63195mm for 50-70mm cavities220mm for 71-95mm cavities250mm for 96-125mm cavities300mm for 126-175mm cavities

Staifix R/R180mm for 40-60mm cavities200mm for 61-80mm cavities220mm for 81-100mm cavities

Stairib BarLength to order6, 8mm dia.

Ancon AC 31Lengths 175, 200 ,225mm

Ancon AC 31CLengths 175, 200,225mm

Cameron T 47Lengths 200, 250,300mm 4.7mm dia.

HRT4/RLengths 200, 225mm

Type A R/RLength 225mm

Setting Times for FIS P

27


OTHER ANCON PRODUCTS

Masonry ReinforcementAncon AMR masonry reinforcement improvesthe structural performance of a wall byproviding additional resistance to lateral loads.Located in the bed joint, it has a flattenedprofile to maintain good mortar cover evenwhen lapped or used with wall ties. It isavailable in various standard configurationsto suit a range of loading conditions andwall widths.

Masonry Support SystemsMasonry cladding on concrete or steel framesis normally supported from stainless steelsupport systems. AnconOptima and AnconMDC Systems create a continuous angle tosupport the outer leaf of masonry. AnconIndividual Brackets support masonry featuressuch as curves and arches. A full designservice is available to specifiers and users ofAncon systems.

Windposts and Parapet PostsLarge panels of masonry or panels withopenings can often be difficult to justifystructurally. Ancon Windposts are designed toprovide additional lateral support for panels ofbrickwork. The range is manufactured fromstainless steel and includes Windposts whichcan be installed into the inner leaf of blockworkand Windposts for installation into the cavity,which leave the blockwork undisturbed.Parapet Posts are used as vertical support forbrickwork in either parapet or spandrel panels.

Insulated Balcony ConnectionsAncon Isolan connectors join external concretebalconies to internal floor slabs. Used tominimise cold bridging, they provide continuityto the thermal insulation. Standard systems,comprising rigid CFC-free polystyreneinsulation and duplex stainless steel shearreinforcement, suit most depths of cantileveredand simply supported balconies. Conventionalreinforcing bars are used to provide thetension and compression reinforcement.

Tension SystemsTie bars are increasingly being used instructures and buildings as an architectural aswell as a structural element. Ancon 500Tension Systems comprise a range ofcomponents which can be supplied in carbonsteel or stainless steel in a variety of sizes andfinishes. They have a high load capacity andlook particularly impressive when used withlarge areas of glazing or curved timber trusses.

STAIFIX-THOR HELICAL CRACKSTITCHING KIT

The Staifix-Thor Helical Crack Stitching Kit is ahigh strength, non-disruptive solution for thepermanent repair of cracked masonry. It isavailable from builders merchants andspecialist distributors.

Ideal for either the remedial specialist or thecontractor with a one-off repair job, the kitcontains Staifix-Thor Helical reinforcing bars(10 x 1000mm), cementitious grout (3 litres), apaddle for grout mixing, a grout applicatorgun with a flat nozzle, and a finger trowel.

Purchase of the Ancon kit, in preference toobtaining all the components individually,guarantees the correct specification andcompatibility of reinforcement, grout and toolsfor this specific application. The kit is suppliedin a single box with full installation instructions.

The stainless steel helical bars are chemicallybonded into bed joints to stitch cracks,redistributing tensile forces and stabilising thestructure. On completion, the bar and groutare concealed, retaining the original characterof the wall.

500mm

500mm 500mm

500mm

Please note it is essential that the cause of thecracking is established and eliminated prior tothe installation of this system.

© Ancon Building Products 2008

The construction applications and details provided in this literatureare indicative only. In every case, project working details should beentrusted to appropriately qualified and experienced persons.

Whilst every care has been exercised in the preparation of thisdocument to ensure that any advice, recommendations orinformation is accurate, no liability or responsibility of any kind isaccepted in respect of Ancon Building Products.

With a policy of continuous product development Ancon BuildingProducts reserves the right to modify product design andspecification without due notice.

These products are available from:

Ancon Building ProductsPresident Way, President ParkSheffield S4 7URUnited KingdomTel: +44 (0) 114 275 5224Fax: +44 (0) 114 276 8543Email: [email protected]: www.ancon.co.uk

Ancon (Middle East) FZEPO Box 17225Jebel AliDubaiUnited Arab EmiratesTel: +971 (0) 4 883 4346Fax: +971 (0) 4 883 4347Email: [email protected]

Ancon Building Products114 Kurrajong AvenueMount DruittSydneyNSW 2770AustraliaTel: +61 (0) 2 8808 1111Fax: +61 (0) 2 9675 3390Email: [email protected]: www.anconbp.com.au

Ancon (Schweiz) AGGewerbezone Widalmi 103216 Ried bei KerzersSwitzerlandTel: +41 (0) 31 750 3030Fax: +41 (0) 31 750 3033 Email: [email protected]: www.ancon.ch

Ancon Building Products GesmbHGerspergasse 9/3 Top 1A-1210 ViennaAustriaTel: +43 (0) 1 259 58 62-0Fax: +43 (0) 1 259 58 62-40Email: [email protected]: www.ancon.at

Ancon GmbHBartholomäusstrasse 2690489 NurembergGermanyTel: +49 (0) 911 955 1234 0Fax: +49 (0) 911 955 1234 9Email: [email protected]: www.anconbp.de

ISO 9001: 2000FM 12226

ISO 14001: 2004EMS 505377

Documents

Wall Ties and Restraint Fixings - Κατασκευή