Ancon Isolan Insulated Balcony Connectors Ancon isolan Ing.pdfWindposts and Lintels Wall Ties and Restraint Fixings Channel and Bolt Fixings Tension Systems Stainless Steel Fabrications

CI/SfB (23.79) Et6

February 2008

Isolan® InsulatedBalcony Connectorsfor Concrete to Concrete Applications

2

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.

Ancon Isolan connectors join external concretebalconies to internal concrete floor slabs. Usedto minimise cold bridging, these connectorsprovide continuity to the thermal insulation inthe wall. Standard systems, comprising rigidCFC-free polystyrene insulation and stainlesssteel shear reinforcement, suit most depths ofcantilever and simply supported balconies.

Introduction to Ancon Isolan 4

Isolan Systems 5

Applications 6

System Components 7

Specification Guidance 8

Design Examples 9

Isolan MV System 10-12

Isolan V System 13

Isolan FD/FZ Systems 14

Enquiry/Order Form 15

Corner Details 16-17

Reinforcement Anchorage Lengths 17

Installation Guidance 18

Products for Structural Concrete Division 19

Other Ancon Products 19

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

ISO 9001: 2000FM 12226

ISO 14001: 2004EMS 505377

3

Shear Load ConnectorsIsolan® Insulated Balcony Connectors

Rail

Tube

Ancon Isolan MV System

4

Standard Isolan systems, comprising rigidCFC-free polystyrene insulation and stainlesssteel shear reinforcement, suit most depths ofcantilever and simply supported balconies.The various systems allow the transfer of allloads in structural concrete i.e. moment, shear,compression and tension, and are suitable forstraight runs and both internal and externalcorners.

System BenefitsAncon Isolan connectors use conventionalreinforcing bars to provide the tension andcompression reinforcement. When comparedto systems where this reinforcement is anintegral component, the Ancon Isolan solutioncan provide substantial cost savings andsimplify specification, scheduling,transportation, handling and installation.

U-ValueThe Isolan system has a typical U-value of0.3 W/m2K.

Curved or Stepped BalconiesSpecial configurations can be manufactured tosuit specific project requirements includingcurved or stepped balconies.

Precast BalconiesIn addition to balconies cast in-situ, AnconIsolan systems can be used in precastbalconies. For such applications, tension andcompression bars must be scheduled andinstalled at the time of casting. Please contactAncon for more information.

ANCON ISOLAN INSULATEDCONNECTORSIn applications such as balconies, whereconcrete slabs pass through the buildingenvelope, a cold bridge is created that canresult in significant heat loss.

The Ancon Isolan system is a structural

Cold Bridge

component used to join external concretebalconies to internal concrete floor slabs. Itprovides continuity to both the reinforcementand the thermal insulation of the wallprotecting the building against the effects ofcold bridging.

4

ISO-Element

Shear Reinforcement

‘PRODUCTS FOR STRUCTURALCONCRETE’ DIVISIONAncon provides a dedicated service to theconcrete sector. The 'Products for StructuralConcrete' team advises on the selection of themost appropriate product, provides pricinginformation and can project manage thesupply of all elements to suit the site schedule.Overseas enquiries are also serviced by thisteam. Our product offering includes, but is notrestricted to, balcony connectors, reinforcingbar couplers, reinforcement continuitysystems, punching shear reinforcement andshear load connectors.

Email [email protected], fax +44 (0) 114238 1240 or call +44 (0) 114 275 5224 withyour enquiry.

55

ISOLAN SYSTEMSStandard Isolan systems are available in fiveheights to suit different depths of balcony i.e.160, 180, 200, 220 and 240mm, and aresupplied complete with stainless steel shearreinforcement. Tension and compressionreinforcement to be supplied by others.

MV SystemThe Ancon Isolan MV system is used for thetransfer of moment and shear forces incantilevered balconies.

FD SystemThe Ancon Isolan FD system is used for the The Ancon Isolan FZ system is used for the

Special ConfigurationsIsolan components can be individually adaptedto suit specific applications. The stainless steelshear reinforcement can be supplied in a rangeof diameters and bent into other requiredshapes outside the polystyrene insulationelement. The number of tubes can be modifiedand the standard height of the ISO-Elementcan be increased. Systems can bemanufactured for use in curved or steppedbalconies. Please contact Ancon with detailsof specific applications.

V SystemThe Ancon Isolan V system is used for thetransfer of shear forces in simply supportedbalconies.

Notes: For clarity, main reinforcement (supplied by others) has been omitted from these drawings. The Isolan systemshould always be orientated so the stainless steel shear reinforcing bars are at the bottom of the slab on the side of theload (the balcony side).

FZ System

transfer of tensile forces.

FZ

transfer of compression forces.

FD

Ancon Isolan V System with CompressionReinforcement Supplied by Others

MV MV MV

MV

Isolan® Insulated Balcony Connectors

6

APPLICATIONSThe Ancon Isolan system is suitable for straightruns and both internal and external corners.The following drawings show exampleapplications in plan view.

MV MV MV MV MV MV

V V V

MV MV MV

MV

MV MV MV

VV

Cantilever Balcony Cantilever Balcony at Internal Corner

Simply Supported Balcony Supported Slab Recessed Balcony

Cantilever Balcony with 90° External Corner Obtuse Angle Corner Cantilever Balcony

Tube

SYSTEM COMPONENTSISO-ElementThe ISO-Element is 60mm thick, CFC-free,rigid white polystyrene insulation in a standardlength of 750mm. It is available in five heights(160, 180, 200, 220 and 240mm) to suitdifferent depths of balcony.

Shear ReinforcementThe shear reinforcement is duplex stainlesssteel grade 1.4462 and is available in threediameters (6, 8 and 10mm) as standard. Inaddition to the standard systems, thisreinforcement can be bent into other requiredshapes outside the polystyrene insulationelement.

TubesPolypropylene tubes with a 27mm internaldiameter are located at pre-determinedpositions in the ISO-Element to allow for thepassage of tension and compressionreinforcing bars.

RailA high density polyethylene rail is located onthe top edge of the ISO-Element to protect theinsulation.

Tension/Compression Reinforcement(supplied by others)Reinforcement used for tension andcompression bars to be grade 500B toBS4449: 2005 and supplied by others.

Fire ProtectionThe Isolan system offers fire resistance to DIN4102: Fire behaviour of building materials andcomponents. Fire protection can be providedby adding Duripanel fire resistant strips to thebase or to the top and base of the ISO-Element.The strips are available in 18, 28 or 36mmthickness providing 30, 60 or 90 minute fireresistance respectively. Examples of how thesestrips are referenced are 1R30 for a 30 minutestrip fixed to the base and 2R90 for a 90 minutestrip fixed to the top and base. When specifyingand ordering, these references should beadded as a suffix to the Isolan system (seepage 8), for example 4MV6-200-5Ø12T/5Ø16C-1R60. The polyethylene rail is omittedfrom the ISO Element if these strips areemployed to the top. For further informationcontact Ancon’s Technical Services Team.

Height Height Length b Length b Length bd y Shear Bar Shear Bar Shear Bar Angle(mm) (mm) 6mm Dia. 8mm Dia. 10mm Dia. α

160 88 530 670 810 39°

180 108 530 670 810 44°

200 128 530 670 810 47°

220 148 530 670 810 53°

240 168 530 670 810 57°

150mm150mm 150mm 150mm 150mm

82mm 68mm

αy

Øi = 27mm

Shear bar

= =60mm

b

750mm

Øi =27mmShear

bar

Corrosion ResistanceThe Ancon Isolan system has beenengineered to provide a high resistance tocorrosion. The shear reinforcement isstainless steel and the carbon steel tensionand compression reinforcement passingthrough the insulation unit is encased inpolypropylene tubes which fill with concretefines at the time of casting. This preventswater and oxygen from reaching the bars,thus providing corrosion protection.

y d

36mm

36mm

d

Note: Shear bar length (b) tolerance +/-10mm

7

SPECIFICATION GUIDANCEDesign InformationThe graphs on pages 10 to 14 are used toselect the most appropriate Isolan element,and the diameters of the shear, tension andcompression reinforcement.

Example calculations are provided on thefollowing page. Consideration should be givento horizontal forces on parapets and localconcentrated load checks, these are notincluded in the examples.

The graphs provide the design resistance(ultimate limit state) values for the shear VRd

and moment MRd.

The Isolan element design is based on normalstructural calculations. The calculations arebased on the following material properties.

Concrete: C25/30 (cylinder/cubecompressive strengths)= 30N/mm2

Reinforcement: Shear reinforcement material,duplex stainless bardesignation 1.4462BS6744, Grade 500Re or Rp0.2 ≥ 500N/mm2

Rm ≥ 550N/mm2

Tension and compressionreinforcement, BS4449,Grade 500B Re ≥ 500N/mm2

Rm ≥ 540N/mm2

The partial load factors used in the examples are:Dead load (persistent) = 1.35Imposed load (quasi) = 1.50

How to Use The GraphsMV Elements1. The graph for the height of the Isolan

element that corresponds to balcony slabthickness is selected.

2. The design shear capacity required (unit:kN per linear metre) is plotted on thehorizontal axis of the graph and a verticalline drawn. From this, the relevant Isolanelement type (i.e. 2MV6, 4MV6, 4MV8 or4MV10) is selected.

3. The bending moment capacity required(unit: kNm per linear metre) is plotted onthe vertical axis of the graph and ahorizontal line drawn.

4. The intersection between the vertical linecorresponding to the design shear capacityand the horizontal line corresponding to thedesign moment capacity determines therespective diameters of the tension andcompression reinforcement e.g. Ø12T/Ø16C.The first number refers to tension and thesecond to compression reinforcement. Referto the drawings on page 10 for the number ofbars required.

V Elements1. The balcony slab thickness is selected on

the horizontal axis of the graph and avertical line drawn.

2. The design shear capacity required (unit: kNper linear metre) is plotted on the vertical axisof the graph and a horizontal line drawn.

3. The intersection between the vertical linecorresponding to the balcony slab thicknessand the horizontal line corresponding to thedesign shear capacity determines the Isolanelement type and diameter/number ofcompression bars.

FD Elements1. The concrete thickness is selected on the

horizontal axis of the graph and a verticalline drawn.

2. The design compression capacity required(unit: kN per linear metre) is plotted on thevertical axis of the graph and a horizontalline drawn.

3. The intersection between the vertical linecorresponding to the concrete thicknessand the horizontal line corresponding to thedesign compression capacity determines theIsolan element type and diameter/number ofcompression bars.

FZ Elements1. The concrete thickness is selected on the

horizontal axis of the graph and a verticalline drawn.

2. The design tensile capacity required (unit:kN per linear metre) is plotted on thevertical axis of the graph and a horizontalline drawn.

3. The intersection between the vertical linecorresponding to the concrete thicknessand the horizontal line corresponding to thedesign tensile capacity determines theIsolan element type and diameter/numberof tension bars.

Calculation MethodA hard copy of the calculation to derive theload graphs is available from Ancon on request.

Balcony DeflectionThe deflection of the equivalent ‘monolithic’balcony should be calculated in the usual way,in compliance with relevant standards anddesign codes. A coefficient of 1.20 must beapplied to the calculated figure to determinethe maximum deflection with Isolan connectors.The final figure can be used to determine theamount of pre-camber to apply to theformwork to compensate for the deflection.

Ancon Isolan Product Referencing

4MV8 - 200 - 5Ø12T / 5Ø16CNumber of System Number and Number andshear bars, height diameter of diameter of

System type, tension bars compression barsDiameter of to be supplied to be suppliedshear bars by others by others

Typical Specification ClauseOnce the appropriate Isolan system has beenselected from the design graphs, the followingclause may be adapted for use. Details in italicsmust be changed to suit the product reference.

4MV8 - 200 - 5Ø12T / 5Ø16CAncon Isolan MV system 200mm highcomprising CFC-free polystyrene insulation,60mm thick by 750mm long, and four stainlesssteel grade 1.4462 shear reinforcing bars of8mm diameter. System requires five 12mmdiameter grade 500B tension bars and five16mm diameter grade 500B compression barsto be supplied by others.


8

DESIGN EXAMPLES1. MV Element Depth 180mmDead load slab g = 4.5kN/m

Imposed load q = 3.0kN/m

Parapet load G = 5.0kN/m

q = (1.35 x 4.5 + 1.50 x 3.0) = 10.6kN/m

2k

2k

k

2d

G = (1.35 x Gd k) = (1.35 x 5.0) = 6.8kN/m

M = (q x I )/2 + (G x I ) = 34.1Nm/mEd d 12

d 2

V = (q x I ) + GEd d 1 d = 28.0kN/m

From graph for MV180 select 4Ø6 shear bars,Ø12/16 (tension/compression bars). Productreference 4MV6-180-5Ø12T/5Ø16C.

2. MV Element Depth 220mmDead load slab g = 5.5kN/m2

k

Dead load (point) G = 35kNk

Imposed load q = 3.0kN/m2k

q = (1.35 x 5.5 + 1.50 x 3.0) = 11.9kN/m2d

G = (1.35 x G ) = (1.35 x 35) = 47.3kN/md k

M = (q x I )/2 + (G x IEd d 12

d 2) = 57.1kNm/m

V = (q x I ) + G = 68.7kN/m

From graph for MV220 select 4Ø8 shear bars,Ø16/20 (tension/compression bars). Productreference 4MV8-220-5Ø16T/5Ø20C.

3. V Element Depth 200mmDead load slab g = 5.0kN/m

Dead load finishes g = 2.0kN/m

Ed d 1 d

2k

2k

Imposed load q = 5.0kN/m2k

q = (1.35 x 7.0 + 1.50 x 5.0) = 17.0kN/m2d

V = (q d x l )/2 = 51.0kN/m

From V graph select 200mm 4V8/5Ø12C,(4Ø8 shear bars with 5Nr. Ø12 compressionbars). Product reference 4V8-200-5Ø12C.

4. FD Element Depth 200mmDead load wall G = 15kN/m

Imposed load wall N = 160kN/m

FD = (1.35 x 15.0) + ( 1.50 x 160.0) = 260.3kN/m

From graph for FD, 200mm. Product referenceFD-200-2x5Ø12C.

5. FZ Element Depth 220mmDead load wall G = 11kN/m

Imposed load wall N = 200kN/m

FZ = (1.35 x 11.0) + (1.50 x 200.0) = 315kN/m

From graph for FZ, 220mm. Product referenceFZ-220-2x5Ø10T.

Ed 1

k

k

Ed

k

k

Ed

9

2000mm

200mm

1800mm

800mm

1000mm l1

l2

g + q Gk k k

180mm

l = 2000mm l = 1900mm1 2

l1

l2

g + qk k

220mm l = 1800mm l = 800mm1 2

Gk

6000mm

I1

g + qk k

200mm

I = 6000mm1

200mm

3000mm

h = 3000mm

Gk

Nk

N

h = 2000mm

Gk

k

MV System

MV System

V System

FD System FZ System

2000mm

220mm

Note: For clarity, not all reinforcement is shown

10

ISOLAN MV RANGE2MV6

2 Shear Bars 6mm Diameter - Supplied5 Tension and 5 Compression Bars - To be supplied by others

4MV6


4MV8


4MV10


Mom

ent M

(kN

m/m

)R

d

Shear V (kN/m)Rd

10

0 120

20

30

40

50

Isolan MV Element - 160mm Height60

Note: See guidance and design examples on pages 8 and 9

530mm

d

d

d

d

530mm

670mm

810mm


Ø10T/Ø10C

Ø12T/Ø16C

Ø10T/Ø12C

Ø10T/Ø16C

Ø16T/Ø20C

Ø12T/Ø20C

10

2MV6 4MV6 4MV8 4MV10

20 30 40 50 60 70 80 90 100 110

11

Mom

ent M

(kN

m/m

)R

d

Shear V (kN/m)Rd

10

140

20

30

40

50

60

70


Mom

ent M

(kN

m/m

)R

d

Shear V (kN/m)Rd

10

0

0

130

20

30

40

50

60




Ø10T/Ø10C

Ø12T/Ø16C

Ø10T/Ø12C

Ø10T/Ø16C

Ø16T/Ø20C

Ø12T/Ø20C

10


20 30 40 50 60 70 80 90 100 110 120 130

Ø10T/Ø10C

Ø12T/Ø16C

Ø10T/Ø12C

Ø10T/Ø16C

Ø16T/Ø20C

Ø12T/Ø20C

10


20

Design Example 1

30 40 50 60 70 80 90 100 110 120

Mom

ent M

(kN

m/m

)R

d

Shear V (kN/m)Rd

10

0 160

20

30

40

50

60

70

80

90



Ø10T/Ø10C

Ø12T/Ø16C

Ø10T/Ø12C

Ø10T/Ø16C

Ø16T/Ø20C

Ø12T/Ø20C

10


20 30 40 50 60 70 80 90 100 110 120 130 140 150

12

Isolan® Insulated Balcony ConnectorsM

omen

t M(k

Nm

/m)

Rd


10

0

20

30

40

50

60

70

80

Shear V (kN/m)Rd

150


10


20 30 40 50 60 70 80 90 100 110 120 130 140

Ø10T/Ø10C

Ø12T/Ø16C

Ø10T/Ø12C

Ø10T/Ø16C

Ø16T/Ø20C

Ø12T/Ø20C

Design Example 2

Shea

r V

(kN

/m)

Rd

Concrete Thickness (mm)

13

160 180 200 220 240

2V6-4Ø10C

4V6-5Ø10C

4V8-5Ø12C

4V10-5Ø16C

20

0

40

60

80

100

120

140

160Isolan V Element - Sizes 160, 180, 200, 220 and 240mm

4 Shear Bars 10mm Diameter - Supplied5 Compression Bars - To be supplied by others




530mm

d

530mm

d

670mm

d

810mm

d

4V10

4V8

4V6

ISOLAN V RANGE2V6


20.6 kN/m

41.3 kN/m

73.4 kN/m

114.7 kN/m

22.8 kN/m

45.6 kN/m

81.0 kN/m

126.5 kN/m

24.0 kN/m

48.0 kN/m

85.3 kN/m

133.2 kN/m

26.2 kN/m

52.4 kN/m

93.1 kN/m

145.5 kN/m

27.5 kN/m

55.0 kN/m

97.8 kN/m

152.8 kN/m

Design Example 3


14 Concrete Thickness (mm)

FZ2x5Ø12T/750mm

FZ2x5Ø10T/750mm

FZ2x5Ø16T/750mm

Dire

ct T

ensi

on F

Z(k

N/m

)R

d

200

100

0

300

400

600

500

800

700

900

1000

1200

1100

160 180 200 220 240

Isolan FZ Element - Tension ReinforcementSizes 160, 180, 200, 220 and 240mm


455 kN/m

656 kN/m

1166 kN/m

Design Example 5

Dire

ct C

ompr

essi

on F

D(k

N/m

)R

d

Concrete Thickness (mm)

100

0

200

300

400

500

600

700

800

160 180 200 220 240

FD2x5Ø12C/750mm

FD2x5Ø10C/750mm

FD2x5Ø16C/750mm

Isolan FD Element - Compression ReinforcementSizes 160, 180, 200, 220 and 240mm


229 kN/m

362 kN/m

735 kN/m

Design Example 4

15

ANCON ISOLAN ENQUIRY / ORDER FORM

Copy, complete and fax to +44 (0) 114 238 1240

Isolan System Slab Depth System Type & Length (standard unit length 750mm)d (mm)

2 MV 6

m

MV System

V System

mm

4 MV 6 4 MV 8 4 MV 10

m m m

2 MV 6 4 MV 6 4 MV 8 4 MV 10

m m m m

2 V 6 4 V 6 4 V 8 4 V 10

m m m m

2 V 6 4 V 6 4 V 8 4 V 10

m m m m

FD/FZ System

Special Configurations

Diameter of Shear Reinforcement mm

Sketch of intended application

d

d

d

d

mm

mm

mm

mm m

mm

mm

m

Date ❒ Order ❒ Enquiry

Company

Address

Town Post Code

Contact Name

Tel Fax

Email

Delivery Date

Delivery Address

Town Post Code

Contact Name

Tel Fax

Project Name


16

Notes:1. Stainless steel shear bars provided with the Isolan

system. All other reinforcement to be provided anddetailed by others.

2. The above plan is indicative and for the purposes ofclarity does not show all reinforcement required.

3. For anchorage lengths refer to table on page 17.

CORNER DETAILSAt balcony corner configurations, if thediameters of the tensile and compressivereinforcement add up to or are greater than27mm, attention to the local reinforcementdetail is required. This is necessary becausethe inner diameter of the polypropylene tube is27mm and if the tubes are maintained in thesame horizontal plane, the reinforcementwould clash.

In the main load bearing direction the Isolanelement is selected to suit the height of theslab, so that the compression reinforcementwhich crosses the 60mm insulation cavity willbe located in the 1st layer (bottom steel) andthe main tensile reinforcement will be located inthe 4th layer (top steel). Refer also to Plan Viewof Cantilever Balcony and Sections.

2

4

4

Compression reinforcement - 1st layer

Tensile reinforcement - 4th layer

1

3

Plan View of Cantilever Balcony and Sections

2

4MV6-200 4MV6-200 4MV6-200

Tensilereinforcement -

3rd layer

4MV6-160

4MV6-180

or 4MV6-200

1

Compressionreinforcement -

2nd layer

3

Key to Reinforcement Layers

Top of cantilever slab4th layer3rd layer

2nd layer 1st layer

As previously noted, the corner detail isdependent upon the reinforcement diameters;the size of the Isolan element at corners needsto be selected to avoid local clashing ofreinforcement. A typical plan of a cornerbalcony is shown below, and the Isolanelement selected will be 20mm or 40mmsmaller in height than that adopted for thegeneral cantilever design.

For example, a cantilever balcony requires astructural slab of height 200mm, accordingly anIsolan MV 200 element would be selected,however locally at the external corner an Isolanelement MV 160 is selected to avoid clashing ofreinforcing bars. The Isolan MV 160 element ismade up to the full slab height of 200mm byusing 20mm thick polystyrene make-up stripsglued to the top and bottom edges.

Similar detailing principles will apply torecessed balconies.

REINFORCEMENT ANCHORAGELENGTHS: MV ELEMENT/V ELEMENTThe information noted in the table shownprovides the minimum anchorage lengths forthe Grade 500B tension and compressionreinforcement; Ancon does not supply this

Section 1-1

Section 3-3

36

200

Compressible filler and

Facing brickwork

Loadbearingblockwork

Stainlesssteel shearreinforcementaligned in1st and 4thlayers

Note: For clarity, shear reinforcement has been omitted from Section 3-3 and Section 4-4 above.

Section 2-2

Section 4-4

160

2020

36

200

Tension Bars Compression BarsRebar Tension Compression Dimension Dimension Dimension Dimensionsize anchorage anchorage A min. B min. C min. D min.(mm) (mm) (mm) (mm) (mm) (mm) (mm)10 500 350 1060 500 760 350

12 600 420 1260 600 900 420

16 800 560 1660 800 1180 560

20 1000 700 2060 1000 1460 700

Tensile reinforcementin 4th layer

mastic pointingMake up strip, top and bottom

Compressionreinforcement in

1st layer

Stainlesssteel shearreinforcementaligned in2nd and3rd layers

D

C Compression bars

Cantilever Slab

reinforcement with the Isolan system, only thestainless steel shear bars are provided. TheGrade 500B anchorage reinforcement must bedetailed with the general balconyreinforcement and provided by others.

The minimum length of the tension anchoragerebar shall be 50D where D is the nominalrebar diameter.

The minimum length of the compressionanchorage rebar shall be 35D where D is thenominal rebar diameter.

The structural slab shall have a minimumconcrete strength Class C25/30(cylinder/cube compressive strengths).Durability considerations may result in theselection of a higher strength class for mostUK applications.

B 60mm

A

Tension bars

160

Note: The tension anchorage length is longer than required by BS 8110-1:1997, Table 3.25

Tensile reinforcementin 3rd layer

20mm Makeup strip

20mm Makeup strip

Compressionreinforcement in

2nd layer

17

18

INSTALLATIONAncon Isolan components are fast and simple to install. These steps are provided as guidanceand should be followed in conjunction with the site engineer’s instructions and structuralengineer’s reinforcement details.

Any polystyrene which is damaged must be replaced or alternatively, where possible, patched withpolyurethane foam to maintain the insulation properties.

Step 1The Isolan system should always be orientated so the stainless steel shear reinforcing bars are atthe bottom of the slab on the side of the load (the balcony side). The unit is then positioned andsecured to the formwork.

On-site StorageCare should be taken to avoid damaging anyIsolan components prior to installation. Specialcare should be taken of the polystyrene units.All components should be stored under coverand away from direct sunlight.

Special ConfigurationsLoad distribution reinforcing bars must beinstalled at the bends of the shearreinforcement.

Balcony - Loaded side

Note: For clarity, not all reinforcement is shown.

Shear reinforcementpositioned at bottom of slab

60m

m

1000mm

Isolan unit

Compressionreinforcement(other bars omittedfor clarity)

25mm maximum out ofalignment over 1000mm

Polypropylene tubes

Step 2Insert the compression bars and tension bars, supplied by others, through the polypropylenetubes, and secure them to the main floor slab and balcony reinforcement. The minimum anchorlength must be achieved either side of the Isolan system, see page 17 for detailed dimensions.

Care should be taken to ensure that any misalignment of the compression bars does not exceed25mm in 1000mm (1 in 40) as illustrated in the Part Plan View diagram.

Step 3The concrete should preferably be poured adjacent to the Isolan system and simultaneously toeither side to avoid any displacement of the polystyrene units. If the concrete is poured on oneside only, the second side being at a later date, then the Isolan units must be securely fixed toavoid displacement.

Installation is shown for the MV system but is the same for the V system where the tension barsare excluded.

Part Plan View

Misalignment of Compression Bars

1

2


19

Reinforcement Continuity SystemsReinforcement Continuity Systems are anincreasingly popular means of maintainingcontinuity of reinforcement at constructionjoints in concrete; they eliminate the need todrill shuttering and can simplify formworkdesign, thereby accelerating the constructionprocess. The Ancon Eazistrip System isCARES approved and is available in bothstandard units and special configurations.

Reinforcing Bar CouplersThe use of reinforcing bar couplers canprovide significant advantages over lappedjoints. Design and construction of the concretecan be simplified and the amount ofreinforcement required can be reduced. Thejoint can also remain unaffected by any loss ofcover because the strength of a mechanicalsplice is independent of the concrete in whichit is located. The range includes threaded andmechanically bolted couplers.

Shear Load ConnectorsAncon DSD Shear Load Connectors are usedto transfer shear across expansion andcontraction joints in concrete. They are moreeffective at transferring load and allowingmovement to take place than plain dowels,and can be used to eliminate double columnsat structural movement joints in buildings.The two-part construction of these connectorsensures alignment, vital where movement isrequired. The Ancon DSDQ features arectangular box section to allow lateralmovement in addition to longitudinalmovement.

Punching Shear ReinforcementUsed within a slab to provide additionalreinforcement around columns, Ancon Shearfixis the ideal solution to the design andconstruction problems associated withpunching shear. The system consists ofdouble-headed studs welded to flat rails,positioned around the column head.The shear load from the slab is transferredthrough the studs into the column.

Channels and Bolts for Fixing to ConcreteCast-in channels are used for fixing masonrysupport systems to the edges of concretefloors and beams. Channels are available indifferent sizes ranging from simple selfanchoring channels for restraints, to largecapacity channels with integral anchors.A selection of channels can also be suppliedplain-backed for surface fixing. Stainless steelexpansion bolts and resin anchors completethe range.

THE ANCON ‘PRODUCTS FORSTRUCTURAL CONCRETE’ DIVISIONAncon operates a dedicated service to clientsin the concrete sector. Products include, butare not restricted to, balcony connectors andthose shown on this page. The ‘Products forStructural Concrete’ team provides technicaladvice, pricing information, guidance onproduct selection and order fulfilment.Enquiries from overseas are also dealt with bythe team. Please email [email protected],fax +44 (0) 114 238 1240 or call +44 (0) 114275 5224.

ANCON PRODUCTSStainless Steel ReinforcementAncon supplies stainless steel plain and ribbedreinforcing bar direct from stock. Grade 304stainless steel is readily available. Othergrades, including high proof strength material,can be obtained on request. Bar is normallyavailable in 6, 8, 10, 12, 16, 20, 25 or 32mmdiameter. Other diameters can be obtained onrequest. Bars are stocked to a maximumlength of 6 metres throughout the size rangeand can be supplied cut to length, bent andthreaded to suit requirements.

Special Stainless Steel FabricationsAncon has a wealth of experience in workingwith different types and grades of stainlesssteel. Advanced manufacturing facilities enableone-off or volume orders to be fabricated toindividual project requirements and to exactingquality standards. Considerable materialstocks are maintained in order to meet urgentdelivery deadlines.

© Ancon Building Products 2008

These products are available from: 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.

ISO 9001: 2000FM 12226

ISO 14001: 2004EMS 505377

Documents

Ancon Isolan Insulated Balcony Connectors Ancon isolan Ing.pdfWindposts and Lintels Wall Ties and Restraint Fixings Channel and Bolt Fixings Tension Systems Stainless Steel Fabrications