Canam Hambro Installation Manual

8/10/2019 Canam Hambro Installation Manual

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INSTALL

MA


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This manual is intended to serve as a basic guide for the installation of Canams Hamfloor system and must be used in combination with the installation drawings that ha

provided by your Hambro supplier. Please contact the supplier should you come acor ambiguities in these documents.

The execution of the instructions contained in this manual is the responsibility ofperformed in compliance with current building codes and safety standards.


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TABLE OF CONTENTSOVERVIEW ..........................................................................................................................................

HAMBRO D-500 COMPOSITE FLOOR SYSTEM ...........................................................................

INSTALLATION ...................................................................................................................................

HANDLING AND STORAGE .............................................................................................................

JOIST INSTALLATION ......................................................................................................................

TYPES OF ROLLBARS .......................................................................................................................

ROLLBAR INSTALLATION ................................................................................................................INSTALLATION OF REUSABLE PLYWOOD FORMS ....................................................................

CONCRETING STAGE........................................................................................................................

SAFETY PRECAUTIONS WHEN POURING CONCRETE .............................................................

REMOVAL OF PLYWOOD FORMS...................................................................................................


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Canam is fully committed to ensuring risk maon its construction sites, and provides its custdocuments and tools to ensure that operations and to increase project efficiency.

Contact your Canam project manager for custo

CANAM

Healthand

safety

is

everyones

concern!


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OVERVIEW


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21 11

10

6 5

9

87


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OVERVIEW1. Welded wire mesh draped over joists.

2. Concrete slab.3. Continuous slab (over the wall or beam) to form an acoustical seal.4. Hambro joist and bearing shoe.5. Cold-rolled top chord portion embedded 1 in. (38 mm) in the slab to achieve 6. Rollbarclips for temporary bottom chord bracing.7. Rollbars (rotated into a locked position in the joist) to support plywood forms (stand

is 4 ft.-1 in. (1,251 mm)).

8. Handle.9. Slots in top chord to support reusable Rollbars (chord cut for drawing clarity).10. Reusable 4 ft. x 8 ft. (1,220 mm x 2,440 mm) plywood forms.11. Minimum width of plywood forms is 1 ft. (305 mm), cut parallel to the grain directionNote: plywood forms are removed after rotating and removing the Rollbars.


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HAMBROD-500 COMPOSITEFLOOR SYSTEM


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HAMBRO D-500 COMPOSITE FLOOR SYSTEMGENERAL NOTES

Canam is a material supplier only, and as such, does not perform work on site and isfield work, including installation. This manual is provided as an aid to installation. Deviamanual shall release Canam from all liability relating to the material. Canam assumes nor handling of the material on the jobsite. Site conditions may differ. Consult the engineof and direction on the installation procedures.

Any changes to the approved plans that may be required due to jobsite conditionsaccepted by Canam.

The nominal spacing of Hambro D-500 composite joists is 4 ft.-1 in. (1,251 mm). Refer to specific to each project.

The Hambro D-500 composite floor system must be installed in compliance with the inthis installation manual.


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INSTALLATION


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INSTALLATIONThe joists are placed on the walls or beams and

positioned in compliance with the shop drawingsprovided by Canam. The anchorage of joist ends arealso shown on the Canam erection drawings.

The Rollbars are designed

forms and a 50 psf (2.4 kPa)rotated and locked into the the Rollbars lock the joistslateral and torsional stability

== =


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Together, the plywood and the Rollbars form a rigiddiaphragm during construction, providing a safeplatform for workers. The Hambro system usesstandard 4 ft. x 8 ft. x in.* (1,200 mm x 2,400 mmx 13 mm*) plywood sheets.

* Subject to change: review erection drawings.

Standard 8 ft. x 20 ft. (2,40of mesh are easily placed

the Hambro joists. With thhighchair, the mesh formreinforce and support the cinstallation drawings for qu


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Generally, no permanent bracing is required unlessspecifically noted. Bottom chords are fabricated withclips to accommodate Rollbars for temporary bracing

during the pouring stage. No shoring is requiredunless specifically noted. (Consult the installationdrawings for details.)


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HANDLING

AND STORAGEJOIST

INSTALLATION


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HANDLING AND STORAGEHOISTING

When the joists are hoisted using a crane, the steelchoker must be placed at third points along the topchord. Never attach the cables to the web members.

STORAGEHambro joists must be stored lengthwise on a levelsurface. To prevent damage, joists should not bestacked.

DAMAGED JOISTSCare should be taken at all times to avoid damaging

the joists through careless handling during unloading,storage and/or installation. Note that damaged joistsmay impair the performance and safety of the system.

=


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JOISTINSTALLATIONTYPICAL SPACINGHambro joists are typically spaced at a distance of4 ft.-1 in. (1,251 mm). Refer to the installation drawingsfor each project.

All damage must be reported to the project coordinatorwho will make the necessary recommendations.

DO NOT MAKE FIELD REPAIRS TO DAMAGED HAMBROJOISTS WITHOUT WRITTEN AUTHORIZATION FROMYOUR HAMBRO SUPPLIER AND THE ENGINEER

OF RECORD.

3 in. (90 mm) minimum

2 in. (65 mm) minimum

ICF w


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3 in. (90 mm) minimum bearing for 4 in. (102 mm) shoe

2 in. (65 mm) minimum bearing for 3 in. (76 mm) shoe

Concrete, masonry, woodor light gauge walls

3 in. (90 mm) minimum bea

2 in. (65 mm) minimum bea


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TYPES OFROLLBARS


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STANDARD ROLLBAR TELESCOPIC ROLLBAR No. 4

5 ft.-1 in. (1,556 mm) - RB2 (orange)

4 ft.-1 in. (1,251 mm) - RB1 (grey primer)

2 ft.-1 in. (641 mm) - RB12 (pink) 1 ft.-11in. (597 mm) to 3 ft.-1


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TELESCOPIC ROLLBAR No. 5 EDGE-FORMING ROLLBAR

3 ft.-0in. (928 mm) to 4 ft.-9 in. (1,448 mm) - RB5 (blue)

1 ft.-3 in. (387 mm) - RB1


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INTERIOR SUPPORT ROLLBAR RACK

1ft.-9in.(533mm)

2ft.-1in.(635mm)-

RB8CL

CL

2in.

(51mm)

2in.

(51mm)


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Used with walls made of light structural steel, concrete, wood, masonry or with a beam

FLANGE HANGER (FH)

FH type fla

Steel structure, lighconcrete or mason

3in(76mm)


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Only used with an insulated concrete wall unless specified otherwise on the installatio

MASONRY HANGER (MH)

MH type m

ICF wall

4in.(114 mm)


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ROLLBARINSTALLATION


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ROLLBAR INSTALLATION


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ROLLBAR INSTALLATIONSPACINGIn order to support the forms adequately, the Rollbars should be spaced at the intervals indrawings. There must be a minimum of one (1) Rollbar at 7 in. (178 mm) from the end oindicated on the installation drawings, for each sheet of plywood, there must be at leas

for a standard joist spacing of 4 ft.-1 in. (1,251 mm).

Important: never use pieces of plywood to complete the forms as this could compromi

Whenever possible, it is recommended that Rollbars be staggered from bay to bay so thin each slot. This will simplify the stripping procedure. This does not apply to temporar

to the first Rollbar nearest the load-bearing wall or beam.


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THICKENED SLABSHanger plates allow for the addition of an increasedlayer of thickness to the existing slab (see the table

below for thickness).

inch mm

2 51

3 76

5 1276 152


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INSTALLATIONOF REUSABLEPLYWOOD FORMS


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INSTALLATION OF REUSABLE PLYWOOD FORMSSTANDARD SPACING OF 2 ft.-1 in.(641 mm), 4 ft.-1 in.(1,251 mm)OR 5 ft.-1

FORMS BETWEEN TWO JOISTS Indicated by ------- or X on the Canam plan.

NON STANDARD SPACING


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NON-STANDARD SPACING

FORMS BETWEEN TWO JOISTS Indicated by X on the Canam plan.


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This system is applicable to cantilever slabs 1 ft.-2 in.(375 mm). For cantilever slabs > 1 ft.-2 in. (375 mm),

the system must be stabilized.

A sheet of polythene can beplywood in order to protectafterwards. The polythene shor the top chord.

FORMS ON CANTILEVER SLABS FORMWORK SYSTEM (If poly


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PRECAUTIONS1. Before any loads are applied or the forms are put in place, at least three (3) joists m

with all the required Rollbars in order to ensure the structural capacity of the Hamb

2. Full sheets of plywood are recommended. When shorter pieces are used, make suadequately supported and do not present a safety risk for workers and construction

3. Bundles of plywood and Rollbar racks should be placed on supporting walls or beasystem. The system is not designed for this purpose and can compromise worksite

4. Do not overload the slab or joists during construction with materials such as palett

dry stone walls, sand, etc.

5. No materials whatsoever should cover the top chord so as not to impact the joists


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CONCRETE STAGE


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CONCRETING STAGE Important: do not use a laser or a theodolite to level the concrete as an accumula

occur due to the deflection of the joists.

Important: always begin the pour in the middle of the joists and not at the extremit

During the pour, the forms will camber under the weight of the concrete. If a fixed to measure the thickness of the slab, it will not be reliable because the formwork sThe reference used to measure slab thickness should be the forms.

When pouring the concrete, maintain the required slab thickness in all areas.

A light vibration should be applied to the concrete during the pour.

The maximum gross weight of the equipment used to pour and polish the concrete(275 kg).

PARALLEL CONSTRUCTION JOINTSTh


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PARALLEL CONSTRUCTION JOINTSWhen pouring and finishing a Hambro deck, it is notnecessary to complete the entire deck in a single pour.Should it become necessary to stop the pour parallel tothe joists, the joint should be midway between the joists,but never less than 6 in. (152 mm) from the top chord.

PERPENDICULAR CONSTRUCTION JOINTSConstruction joints perpendicular to the joists should bemade over the load-bearing wall or doorway but neverover the joists as this could counteract the design. Thepour must be stopped gradually over the support and thesurface of the concrete must be left rough.

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The concrete pour shouldbe stopped gradually abovethe support. The concretesurface must be rough.

6in.(152mm) min.


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PLACINGWhen placing the concrete, maintain a minimum depthof 1 in. (25 mm) above the top chord for a nominal 2 in.(64 mm) slab. The joists are fabricated with a positivecamber to offset the deflection caused by the weight of

the concrete.

FINISHING AND CURINGFor projects in Canada, the curing process must becarried out in compliance with standard CAN/CSA A23;for projects in the U.S., refer to standard ACI-318.

SAFETY PRECAUTIONS WHEN POURING CONCRETE


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The seven following steps should be followed before and during the concreting stage tconducted safely:

1. Prior to and during the pour, check all Rollbars to ensure that they remain in the pro2. Reduce the Rollbar spacing if the slab thickness is greater than 4 in. (102 mm).3. Prior to and during the pour, ensure that the plywood forms do not overlap*, are pro

not shifted laterally into the top chord.4. Do not subject the joists to excessive construction loads as the performance and s

be compromised.5. Do not pour concrete in excess of the slab thickness specified on the drawings and

quantities of concrete in a single area without spreading it out simultaneously.6. Important:make sure that there are no workers below the slab during the pour.7. Rollbars are not designed to support the weight of a forklift. It is therefore recomme

be placed on the top chord using 2 in. x 12 in. (51 mm x 305 mm) wood planks positioto the top chord.

* For projects in the United States, consult the installation drawings.

6.


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REMOVAL OFPLYWOOD FORMS


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REMOVAL OF PLYWOOD FORMS


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When the concrete attains a cylinder strength of 500 psi (3.5 MPa), the Rollbars anremoved. When the concrete attains a cylinder strength of 1,000 psi (7 MPa), the deckcaution should be exercised so as not to subject it to exaggerated loads (see tables pa

Avoid dropping Rollbars on the slab as this may damage the concrete surface.

Rented Rollbars should be replaced in their respective racks according to type and stocan easily be hoisted by crane.


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FORMWORK REMOVAL ACCORDING TO WEATHER CONDITIONS


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The following tables present the minimum amount of time required or the minimum cothe concrete must reach before the formwork can be removed.

* This is for normal conditions of pouring and concrete supplier specifications must be followed.

Normal conditionsbetween 40F and 80F

(5C and 27C)

Hours afterthe pour

or Compressivestrength

Formwork removal 24 hours* or 500 psi (3.5 MPa)*

Ready for use 48 hours* or 1,000 psi (7 MPa)*


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1. Following 72 hours of heating, the concrete must be kept at a minimum temperature2. Protection against the cold (insulation or shelter) should be removed gradually to p

due to a sudden change in temperature.*Never remove the plywood before the heating has been turned off as the wood could stick to the concrete

Summer conditions of over 80F (27C): apply standard CAN/CSA A23.1-

Winter conditionsunder 40F (5C)

Constant temperatureMinimum hoursafter placement

or

Removal of Rollbars*48 hours with

heatingor

Heating1after placement andinsulation2

Between 50F and 95F(10C and 35C)

72 hours or


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1 866 506-4000www.hambro.com

Hambro products are sold in Canada by Canam Group Inc., in the United States by Canam Steel Cor through their respective agents, distributors or representatives in those countries.

Canam Group Inc., 2003-2013Revised 09/2013

Printed in Canada 09/2013

Documents

Canam Hambro Installation Manual