VALUE OPEN WEB FLOOR SOLUTION - Thomas Armstrong Alpine Space Joist... · VALUE OPEN WEB FLOOR...

36
TM SpaceJoist Technical Manual www.itwalpine.co.uk ALPINE Advancing timber fabrications through design : components : manufacture Cl/SfB (23.9) VALUE OPEN WEB FLOOR SOLUTION MCL 001 T-SJ

Transcript of VALUE OPEN WEB FLOOR SOLUTION - Thomas Armstrong Alpine Space Joist... · VALUE OPEN WEB FLOOR...

Page 1: VALUE OPEN WEB FLOOR SOLUTION - Thomas Armstrong Alpine Space Joist... · VALUE OPEN WEB FLOOR SOLUTION ... KH Cullen KHL 100 Top Hung Joist Hanger NG 925 ... size to match Panel

TMSpaceJoist Technical Manual

www.itwalpine.co.uk

ALPINEAdvancing timber fabrications through design : components : manufacture

Cl/SfB

(23.9)

VALUE OPEN WEB FLOOR SOLUTION

MCL 001T-SJ

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Advancing Timber Frame Fabrication

ITW is a leading international business corporation with

revenues in excess of $US14 billion. With almost 100 years

of experience in the design, development & manufacture of

fasteners & components and equipment & consumable

systems, as well as a variety of speciality products for

customers all around the world.

ITW’s financial performance is generated by some 825

decentralised business units, employing over 60,000 people

in 52 countries. Typically amongst the top 100 patent

holders in the USA, ITW holds over 5,000 product lines.

Ranked 257th in the FT’s global list of the worlds largest

companies ahead of household names such as Colgate -

Palmolive, Oracle and Heinz, ITW is well positioned to meet

the challenges of today’s global markets.

DESIGN

COMPONENTS

MANUFACTURE

ALPINE

ITW Alpine is a member of the Trussed Rafter Association

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Contents

SPACEJOIST OVERVIEW

FEATURES & BENEFITS

SPACEJOIST DETAILSSJ001 Typical SpaceJoist Layout

SJ002 Continuous End Restraint (Ribbon Notch)

SJ003 Non-Load-Bearing Partitions Parallel to SpaceJoists

SJ004 Timber Frame Rim Beam Detail - SpaceJoists Perpendicular to Wall

SJ005 Timber Frame Rim Beam Detail - SpaceJoists Parallel to Wall

SJ006 Timber Frame Top Chord Hung Detail

SJ007 Structural Insulated Panel (SIP) Rim Beam Detail

SJ008 Masonry / Timber Frame Rim Beam Detail - SpaceJoists Perpendicular to Wall

SJ009 SpaceJoists on Masonry Hangers

SJ010 SpaceJoists built into Masonry with Plastic Seals

SJ011 SpaceJoists built into Masonry with Mastic Sealant

SJ012 Block or Steel Beam Top Hung Detail

SJ013 Stair Opening (Multiples fixed with Z-Clips)

SJ014 Stair Opening (Multiples fixed with Drive Screws)

SJ015 Multiple SpaceJoist Z-Clip Fixing Detail

SJ016 Multiple SpaceJoist Drive Screw Fixing Detail

SJ017 Stair Opening (Engineered Timber Trimmer)

SJ018 Narrow Opening (Pocket Beam)

SJ019 Soil Pipe Corner Detail with Bearers

SJ020 Soil Pipe Corner Detail with Trimmers

SJ021 Internal Bearing

SJ022 Shared Internal Bearing

Strongback Tables

SJ023 Strongback Detail (Fixed to Vertical Webs)

SJ024 Strongback Detail (Fixed to Timber Nailer Blocks)

SJ025 Strongback Joint Detail (Fixed to Vertical Webs)

SJ026 Horizontal Restraint Strap Detail

SJ027 Parallel Restraint Strap Detail

SJ028 Cassette Floor Strongback Detail

SJ029 SpaceJoist Party Floor Detail

SJ030 Ground Floor Detail - SpaceJoists Parallel to Wall

SJ031 Ground Floor Detail - SpaceJoists Perpendicular to Wall (A)

SJ032 Ground Floor Detail - SpaceJoists Perpendicular to Wall (B)

GOOD PRACTICEDo’s and Don’ts on Site

INSTALLATION GUIDE

MACHINERYSpaceJoist Fabrication Equipment

04

05

0607

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08

09

10

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12

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15

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19

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OPEN WEB FEATURE ALLOWS FOR SERVICE RUNS

VALUE OPEN WEB FLOOR SOLUTION

WIDE FIXING SURFACE

04

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Overview

Build it fast...

Build it for less...

A popular open web floor system, SpaceJoist will give

your project the competitive edge with marked

savings in time and money. SpaceJoist offers today’s

builder an engineered floor system that combines

the best features of an I-joist with an open web

construction to deliver a quality product for

maximum job site efficiency and overall cost

effectiveness.

Build it fast - SpaceJoist has a number of features

that simplify construction, which helps a project to

run smoothly, and meet deadlines: The consistent

width and depth of the off-site manufactured

SpaceJoists provide easier floor material installation,

and the open web design allows for service runs

without the need for drilling or notching. These

benefits reduce the amount of time contractors

spend on site, speed up construction, and ultimately

save the builder money.

Build it for less - SpaceJoist’s lightweight open web

design provides on-site savings in labour. With no

need for drilling or notching for installation of

services, typical errors that incur costly remedial

work is reduced. The long spans that SpaceJoist is

able to achieve can eliminate the need for costly

intermediate load bearing walls. The bespoke design

of each SpaceJoist to fit a particular job reduces the

site wastage and pilferage of timber joists. These

factors among others translate into an increase in

profit for your bottom line.

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MAXIMUM DUCT OPENING SIZES (mm)

SH W

S D YX

D*

120

120

154

192

265

Depth

195

219

254

304

424

H*

73

73

97

121

178

W*

208

208

208

215

264

S*

107

107

133

155

212

X

605

605

605

605

705

Y

125

125

159

210

330

*These dimensions include a 3mm clearance. These dimensions are approximate as discrepancies may occur in manufacture.

05

FIGURE 01

FIGURE 02

A range of depths are available

Versatile webbing can allow for larger services

Ample room to run services

Features & Benefits

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

OPEN WEB DESIGN

Fast and simple installation of services, without the

need for drilling or notching.

LONGER SPANS

Longer spans are achievable in comparison to solid

timber. This may eliminate the need for intermediate

load bearing internal walls, thus reducing a building’s

overall cost.

DESIGN FLEXIBILITY

A number of end conditions are available to the

designer, including top chord supported. Spacejoists

can be designed for precisely locating bearing walls

and partitions and accommodating large services.

REDUCED SITE WASTAGE

Bespoke design eliminates the need for site

alterations. SpaceJoist also saves timber resources

by reducing the amount of waste timber generated

during construction.

WIDER SPACING

Fewer beams are required to complete a floor

installation, reducing labour time.

LIGHT WEIGHT

The light weight construction allows the joists to be

manoeuvred easily and safely on site, often without

the need for specialist lifting equipment.

WIDE NAILING SURFACE

Floor and ceiling application is simpler and quicker.

SAVE MONEY

Trades work faster on site, reducing labour costs.

While the necessity for intermediate load bearing

walls is also reduced.

ENGINEERED

SpaceJoist is manufactured off-site ensuring

consistent quality and reliability. ITW Alpine's design

software can create SpaceJoist designs to a variety of

specifications.

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SPACEJOIST DETAILS:

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Strongback 47 x 97 Flat Noggins at 600 centres to support non-load bearing walls (see DETAIL SJ003). Fix with Z-Clips.

35mm wide prefabricated rim joistJoist Hanger

Load bearing wallAlign end of SpaceJoists marked so that the webs line through

TMTypical SpaceJoist Layout

DETAIL : SJ001SB

HD

*

KH Cullen KHL 100 Top Hung Joist Hanger

RJ

H

07

*

SB

SB

HD

*

KH Cullen KHL 100 Top Hung Joist Hanger

NG

925

2889

2989

2896

H

H

H

H

HH

T1

T1

T3

T2

T2

StairsTrimmer

SB

SB

NG

NG

NG

8779

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

RJ

RJ

RJ

RJ

4001

50

50

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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08

1

24

3

5

6

7

1

2

34

Continuous End Restraint (Ribbon Notch)

DETAIL SJ002

1 Continuous End Restraint (Ribbon Beam)

2 SpaceJoist

3 Panel Head Binder

4 Panel Top Rail

5 Stud

6 Block Supporting the Trimmer

7 80 x 150 Hand Nail Plate

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Non-Load-Bearing Partitions TMParallel to SpaceJoists

DETAIL SJ003

1 Z-Clip

2 Non Load Bearing Partition

3 47 x 97 Noggin

4 SpaceJoist

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09

8

4

5

2

7

6

4

1

10

9

9

9

8

3

4

Timber Frame Rim Beam Detail - TMSpaceJoists Perpendicular to Wall

DETAIL SJ004

1 SpaceJoist

2 35 wide Rim Beam

3 80 x 150 Hand Nail Plate

4 Sheathing

5 Base Plate

6 Panel Head Binder

7 Panel Top Rail

8 Stud

9 Plasterboard

10 38 x 75 Noggin for fixing plasterboard

11 Breather Membrane

11

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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Upper Floor Stud

Base Plate

Decking

Rim Beam

Plasterboard

Wallplate

Spanning SpaceJoist

Supporting Stud

Plasterboard

Breather Membrane

Plywood Sheathing

Plasterboard

Panel Head Binder

10

Timber Frame Rim Beam Detail -TMSpaceJoists Parallel to Wall

DETAIL SJ005

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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Timber Frame Top Chord Hung Detail

DETAIL SJ006

1 SpaceJoist

2 Sheathing

3 Base Plate

4 Panel Head Binder

5 Panel Top Rail

6 Stud

7 Plasterboard

8 38 x 75 Noggin for fixing plasterboard

9 Noggin - size to match Panel Head Binder width and SpaceJoist top chord depth

10 Breather Membrane

1

2

2

3

5

4

6

6

7

7

7

8

10

9

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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Structural Insulated Panel (SIP) Rim Beam Detail

DETAIL SJ007

1 SpaceJoist

2 35 wide Rim Beam with sheathing

3 80 x 150 Hand Nail Plate

4 Structural Insulated Panel (SIP)

5 Sole Plate

6 Head Plate

7 Plasterboard

8 38 x 75 Noggin

9 Breather Membrane

10 Vapour Control Layer

11 Floor Deck

12 Mastic Sealant

12

4

4

5

6

7

7

7

8

911

10

12

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

3 12

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Masonry / Timber Frame Rim Beam Detail - TMSpaceJoists Perpendicular to Wall

DETAIL SJ008

1 SpaceJoist

2 35 wide Rim Beam

3 80 x 150 Hand Nail Plate

4 Sheathing

5 Base Plate

6 Stud

7 Plasterboard

8 38 x 75 Noggin

9 Wallplate

10 Masonry Load Bearing Wall

11 Breather Membrane

1

2

3

4

4

9

8

7

7

5

6

10

11

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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TMSpaceJoists built into Masonry with Plastic Seals

DETAIL SJ010

1 Plastic joist seal to prevent air leakage (available for 219mm and 254mm deep joists)

2 Outer Wall

3 Masonry Load Bearing Wall

4 SpaceJoist

TMSpaceJoists on Masonry Hangers

DETAIL SJ009

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

1 Masonry Hanger (all masonry must be fully cured and a min. of 3 block course (675mm) must be constructed above the hanger)

2 Outer Wall

3 Masonry Load Bearing Wall

4 SpaceJoist

1

2

3

4

1

2

3

4

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Block or Steel Beam Top Hung Detail

DETAIL SJ012

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

TMSpaceJoists built into Masonry with Mastic Sealant

DETAIL SJ011

1 Mastic sealant to prevent air leakage

2 Outer Wall

3 Masonry Load Bearing Wall

4 SpaceJoist

1 SpaceJoist

2 Hanger

3 Wallplate

4 Masonry Load Bearing Wall

5 Steel Beam

1

2

3

4

1

2

3

4

5

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Stair Opening (Multiples fixed with Z-Clips)

DETAIL SJ013

1

2 SpaceJoist

3 SpaceJoist Trimmer

4 Multiple SpaceJoist

5 Z-Clip (refer to DETAIL SJ015 for spacing)

Hanger

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Stair Opening (Multiples fixed with Drive Screws)

DETAIL SJ014

1

2 SpaceJoist

3 SpaceJoist Trimmer

4 Multiple SpaceJoist

5 Drive Screw (refer to DETAIL SJ016 for spacing)

Hanger

1

23

4

5

1

23

4

5

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D

D

B

B

A

A

D

D

C

C

17

No. of TopChord Z-Clips

2

4

Load Appliedto Hanger*

6 kN

10 kN

TABLE 01 : Z-CLIP SPACING ON MULTIPLE SPACEJOIST

Dim A(mm)

150 (max)

150 (max)

No. of Bottom Chord Z-Clips

2

2

Dim B(mm)

n/a

150 (max)

Dim C(mm)

150 (max)

150 (max)

Z-Clips to be typically spaced at 600mm centres (Dim D) unless where shown:

* Applied load must be checked against safe working load

Centre Lineof applied load

TMMultiple SpaceJoist Z-Clip Fixing Detail

DETAIL SJ015

1

2

23

This drawing illustrates the required fixing to accommodate a point load up to 10kN. See TABLE 01

1 Multiple

2 Z-Clip(Z-Clips on the bottom chord are coloured red, and are shown through for clarity)

3 Hanger (A Hanger is shown to indicate a point load acting on the SpaceJoist. A point load may be administered another way, by an Engineered Timber Beam built into the SpaceJoist for example)

SpaceJoist

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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D

D

B

B

A

A

D

D

C

C

18

TMMultiple SpaceJoist Drive Screw Fixing Detail

DETAIL SJ016

Centre Lineof applied load

1

3

No. of TopChord Screws

2

4

Load Appliedto Hanger*

6 kN

10 kN

TABLE 02 : DRIVE SCREW SPACING ON MULTIPLE SPACEJOIST

Dim A(mm)

150 (max)

150 (max)

No. of Bottom Chord Screws

2

2

Dim B(mm)

n/a

150 (max)

Dim C(mm)

150 (max)

150 (max)

Drive Screws to be typically spaced at 600mm centres (Dim D) unless where shown:

* Applied load must be checked against safe working load

1 Multiple

2 Drive Screw

3 Hanger (A Hanger is shown to indicate a point load acting on the SpaceJoist. A point load may be administered another way, by an Engineered Timber Beam built into the SpaceJoist for example)

SpaceJoist

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

This drawing illustrates the required fixing to accommodate a point load up to 10kN. See TABLE 02

2

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19

Narrow Opening (Pocket Beam)

DETAIL SJ018

1

2 Engineered Timber Trimmer (depth to suit)

3 Top Chord Hung SpaceJoist

4 Packing piece for fixing ceiling

5 Z-Clip (refer to DETAIL SJ015 for spacing)

Multiple SpaceJoist

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Stair Opening (Engineered Timber Trimmer)

DETAIL SJ017

1

2 Top Chord Hung SpaceJoist

3 Engineered Timber Trimmer

4 Multiple SpaceJoist

5 Z-Clip (refer to DETAIL SJ015 for spacing)

Hanger

5

1

3

4

2

2

1

3

5

4

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20

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Soil Pipe Corner Detail with Trimmer

DETAIL SJ020

Soil Pipe Corner Detail with Bearers

DETAIL SJ019

1 Soil Pipe

2 SpaceJoist

3 50 x 100 Bearers fixed to the wall for floor and ceiling fixing

4 Masonry Hanger

5 Masonry Load Bearing Wall

NOTE: THIS CONSTRUCTION DETAIL MAY NOT PERFORM WELL IN THE TRANSMISSION OF SOUND

1 Soil Pipe

2 SpaceJoist trimmed back to allow for Soil Pipe

3 SpaceJoist with horn to maintain web alignment

4 Masonry Hanger

5 Masonry Load Bearing Wall

6 Hanger

7 Trimmer

1

2

34

5

7

3

4

5

2

1

6

3

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21

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Shared Internal Bearing

DETAIL SJ022

Internal Bearing

DETAIL SJ021

1 SpaceJoist

2 Internal Load Bearing Wall

3 Wallplate

4 Single or Double vertical web positioned centrally over the wallplate

1 SpaceJoist

2 Internal Load Bearing Wall

3 Wallplate

1

2

3

4

1

2

3

1

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22

Strongback Detail (Fixed to Vertical Webs)

DETAIL SJ023

1

2 Strongback fixed at every beam against underside of top chord as shown using 2 no. 3.35mm dia x 75mm long galvanised round wire nails (refer to TABLE 04 above for strongback size)

SpaceJoist

Strongback Tables

The following tables are to be read in conjunction with DETAILS SJ023 - SJ026.

Strongback Spacing

None

1 at centre of span

2 at equal spacing (i.e. third points)

3 at equal spacing (i.e quarter points + centre)

SpaceJoistSpan (m)

Less than 4.0

4.0 - 6.0

6.0 - 8.0

More than 8.0

TABLE 03 : STRONGBACK SPACING

Strongback Size (mm x mm)

SpaceJoist Depth (mm)

35 x 97 TR26or

44 x 97 C16

195 - 254

TABLE 04 : STRONGBACK SIZE

35 x 147 TR26or

44 x 147 C16

304 - 424

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

12

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23

Strongback Detail (Fixed to Timber Nailer Blocks)

DETAIL SJ024

1

2 Strongback fixed to a nailer block at every beam against underside of top chord as shown using 2 no. 3.35mm dia x 75mm long galvanised round wire nails (refer to TABLE 04 on page 22 for strongback size)

3 35 x 97 Nailer Block fixed to top and bottom chord using 2 no. 3.35mm dia. x 75mm long galvanised round wire nails

SpaceJoist

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Strongback Joint Detail (Fixed to Vertical Webs)

DETAIL SJ025

1

2 Strongback fixed at every beam against underside of top chord as shown using 2 no. 3.35mm dia x 75mm long galvanised round wire nails (refer to TABLE 04 on page 22 for strongback size)

SpaceJoist

1

2

3

1

2

2

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24

Horizontal Restraint Strap Detail

DETAIL SJ026

1against underside of top chord as shown using 2 no. 3.35mm dia x 75mm long galvanised round wire nails (refer to TABLE 04 on page 22 for strongback size)

2 SpaceJoist

3 Restraint Strap (fixing to be determined by the building designer)

4 Masonry Wall

Strongback fixed at every beam

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Parallel Restraint Strap Detail

DETAIL SJ027

1 SpaceJoist

2 Restraint Strap (fixing to be determined by the building designer)

3 Outer Wall

4 Masonry Load Bearing Wall

4

3

1

2

1

3

2

4

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Cassette Floor Strongback Detail

DETAIL : SJ028

25

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

TYPICAL SPACEJOIST PROFILE

VIEW A

NAILING DETAIL

PLAN VIEW (decking omitted for clarity)

Wall

Wall

Strongback

StrongbackSplice

Floor Cassette A Floor Cassette B

Floor Cassette A Floor Cassette B

Strongback Splice(see detail for nailing pattern)

Strongback twice nailed to every vertical web with 2 no. 3.35mm dia. x 75mm long galvanised round wire nails

Wall Strongback Strongback Splice

Decking

Wall

70 70 70 70 70 70 70 70

860

CLCL

17

17

Strongback(Floor Cassette A)

Strongback Splice -same timber size asstrongback

Nail - 3.35mm dia x 65mm long galvanised round wire nails.

Strongback(Floor Cassette B)

Join of 2 strongbacks

A

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26

SpaceJoist Party Floor Detail(This detail is subject to pre-completion testing)

TM

DETAIL : SJ029

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

TMGround Floor Detail - SpaceJoists Parallel to Wall(External and internal ground at same grade)

DETAIL : SJ030

Cavity Stop

Masonry Outer Leaf

2 layers of gypsum-based board, normal weight of

8kg/m² per layerSeal with tape or caulkwith sealant

2 layers of gypsum-based board, combined weight of23 kg/m², all joints staggered

Resillient bar

Minimum 254mm deepSpaceJoist

Mineral wool between battens

Minimum 18mm T&G floor deck

Minimum 5mm foamed polyethylene flanking strip

Air flow

Sealant

SpaceJoist, minimum of25mm from face of wall

DPC

Include open perpends at 1500mm centres betweenvents

150mmminimum

NOTE: ALL INSULATION OMITTED FOR CLARITY.

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Ground Floor Detail - TMSpaceJoists Perpendicular to Wall (A)

(External ground above or level with internal floor)

DETAIL : SJ031

Ground Floor Detail - TMSpaceJoists Perpendicular to Wall (B)

(External ground below internal floor)

DETAIL : SJ032

Preformed drain

Open perpend

Granular fill

150mmminimum

Air flow Air flow

DPC

Masonry load bearing wall

Intermediate support with cross ventilation

DPCDPC

Optional wallplate

75mm min.to DPC

Subfloor ground level to fall to outlet / drain

Sealant

SpaceJoist

150mm min.

NOTES: ALL INSULATION OMITTED FOR CLARITY.SPACEJOISTS CAN BE BUILT INTO WALL OR SUPPORTED ON HANGERS.

Air flow Air flow

150mmminimum

DPC150mm min.

DPC

DPC

27

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

Sealant

SpaceJoist

Intermediate support with cross ventilation

Subfloor ground level to fall to outlet / drain

NOTES: ALL INSULATION OMITTED FOR CLARITY.SPACEJOISTS CAN BE BUILT INTO WALL OR SUPPORTED ON HANGERS.

Masonry load bearing wall

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GOOD PRACTICE:

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29

Do’s

Store as described in the Installation Guide (page 31)

Lift the joists in a vertical position

Use the open web feature for the installation of services

Protect joists from inclement weather

Install the joists as they have been designed: Refer to the joist designer’s drawings for the correct orientation, spacing etc.

4

1

3

Don’ts

1 - Do not drill holes through any part of the joist

2 - Do not cut through the chords

3 - Do not cut or remove the metal webs

4 - Do not cut notches in any part of the joist

Do’s and Don’ts on Site

FIGURE 03

1

2

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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INSTALLATION GUIDE:

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31

Unloading of joists and loose timber components: At all times consideration should be given to the moisture content of the timber products. Where it is

At all times the contractor responsible should considered that weatherproof protection is

allocate sufficient resources in terms of equipment necessary this should be arranged so as to allow

and personnel to safely undertake the relevant work proper ventilation and the free passage of air around

operations in accordance with both an Approved all components.

Method Statement and the Site Health and Safety Plan. Adequate props should be installed on both sides of

vertically stored joists in order to ensure overall As a general principle, joists and associated

stability and to allow the safe removal of units as components should be lifted and moved on a

they are required. minimum number of occasions; the most preferred option being to unload and transfer units directly to the final level of use for immediate assembly.

Manoeuvring joists and loose timber components Where uncertainty is encountered as to the correct prior to assembly:method of supporting and lifting components,

At all times the Primary Health and Safety initiative of advice should immediately be sought from the Joist

Prevention and Protection should be observed Designer.

according to the standard hierarchy of risk control.Where necessary, strongbacks or lifting beams

Where units are transferred to temporary should be securely and properly attached to the

storage/working platforms prior to fixing these shall components to prevent buckling during lifting

be of sufficient strength and conform to all the operations.

requirements given for permanent storage noted In situations where components are unloaded using above. fork lifts or modified front loaders then the

In all cases except those involving the lightest of contractor should again ensure that the method of

loads (see the current Manual Handling Regulations) lifting does not overstress or damage the joists.

all lifting work shall be undertaken using mechanical At all times, joists and bundles of joists should be lifting equipment. Roof Joists CANNOT be safely kept vertical when being moved. Where damage to manhandled into their final position at roof level. components is suspected as a result of a breach of

No personnel shall be allowed to enter the areas lifting procedures, this should be immediately

required for slewing or lifting, nor beneath any areas reported to the Joist Designer.

of roof under construction.

Packs of bundled joists should be adequately The site storage of joists and loose timber propped or braced to ensure overall stability is components: maintained prior to their release and assembly.

Where it is necessary to store joists and associated All areas where personnel are required to work shall timber components on site this should be be adequately constructed and protected in undertaken with full consideration of the following appropriate accordance with the Regulations or as matters: assumed in the Approved Method Statement.

The proposed storage area should be level, well drained and free from vegetation.

Safe erection procedures:Joists should preferably be stored vertical (to

Only where proper and full consideration has been minimize the risk of distortion) using suitable bearers

given to the circumstances relevant to any given site located at positions where support has been

can detailed erection procedures be given. However, assumed in the design. Where joists are stacked

certain aspects of good practice are relevant across a horizontally, a level support should be provided at

broad spectrum of floor and roof configurations. approximately 1000 mm centres.

Support bearers should be of sufficient height to ensure that joists do not come into contact with the ground.

Installation Guide

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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32

Beamed Roofs should preferably be assembled Care should be taken to ensure that joists and allied through the use of a temporary safe working components are located in their design positions and platform situated no more than 300 mm below wall accurately spaced. plate level.

Multi-ply joist units should be fixed together in Under no circumstances should temporary bracing accordance with the details supplied by the Joist members be removed prior to permanent bracing Designer (if not undertaken at works). members having been installed.

All roof/floor areas where a fall might occur shall be Joists should not be cut or modified in any way guarded by suitable and adequate edge protection in without first obtaining approval from the Joist accordance with the requirements of the current Designer. Construction (Health, Safety and Welfare)

Regulations.No cladding/decking work shall be allowed to commence until ALL permanent bracing members have been installed.

Items to be joined

Joist

Joist (header) to Wall Plate

Joist (spanning) to Joist (header)

Joist to Joist (multi-ply)

Decking to Joists

Plasterboard to Joists

Joist (spanning) to Joist (trimmer)

Strongback Nailer Block to Joist

Strongback to Strongback Joist

(spanning) to Wall Plate

Fixings required

2 skew nails 4.0 mm dia. x 90 mm long.

2 skew nails 4.0 mm dia. x 90 long @ 780 mm centres.

80 mm x 150 mm nail plate with 3.75 mm x 30 mm long square twisted nails.

Z-Clips as described by DETAIL SJ015, or Drive Screws as described by DETAIL SJ016.

Flat headed 3.0 mm dia. x 65 long annular grooved nails @ 260 centres. Some decking may also require gluing to the beam and in the T&G joints.

Plasterboard nails, 3.35 mm x 40 mm long @ 150 mm centres.Screws, 3.4 mm dia. x 38 mm long @ 150 mm centres.

Hangers to be suitable for loading.

2 nails 3.35 mm dia. x 75 long, to top + bottom chords each side.

2 nails 3.35 mm dia. x 75 long, each side.

NOTE: All nails or screws to be hot dipped galvanised, zinc electroplated or sheradized steel

TABLE 05 : INSTALLATION FIXINGS TABLE

Hangers are usually required when installing SpaceJoists. ITW Alpine has strong technical links with a number of leading manufacturers including metalwork connector manufacturers Cullen Building Products Limited and Simpson Strong-Tie. They can be contacted directly – see below:

Cullen Building Products Limited1 Wheatstone PlaceSouthfield industrial EstateGlenrothesFifeKY6 2SWtel : 01592 771132fax : 01592 771182email : [email protected] : www.cullen-bp.com

Simpson Strong-TieWinchester RoadCardinal PointTamworthStaffordshireB78 3HGtel : 01827 255600fax : 01827 255616website : www.strongtie.com

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

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SpaceJoist - The Fully Engineered SystemTM

Spacejoist projects are fully engineered using ITW

Alpine’s powerful “VIEW” software package, which

seamlessly integrates two programs; “Truscad” and

“Layout”.

Complex floor arrangements can be put together in

Layout to incorporate stair openings through the

floor, or even chases across a run of beams for special

services such as air conditioning installations.

Once the beams have been added in Layout, they can

be designed in a couple of clicks using the “Job

Designer” tool. Job Designer fully analyses each

Spacejoist, transferring loads onto trimmers where

required.

The Truscad program provides the designer with

extra flexibility for making adjustments for special

services and bearing conditions etc. Also, single

Spacejoists can be quickly input and designed in

Truscad if required.

When a floor layout has been designed, it can be

viewed as a virtual reality model, which can be an

effective initial checking or presentation tool.

VIEW can now be linked to hsbCAD timber frame

software. This allows the user to design a whole

building with wall panels, Spacejoists and roof

trusses within one completely integrated package.

SPACEJOISTS IN LAYOUT

LAYOUT & TRUSCAD INTEGRATION

SPACEJOISTS IN TRUSCAD

SPACEJOISTS & ROOF TRUSSES IN hsbCAD

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MACHINERY:

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35

SpaceJoist Fabrication EquipmentTM

RANDEK SPL728 SAW

ITW ALPINE : SPACEJOIST TECHNICAL MANUAL

OPTION 1 - LOW VOLUME PRODUCTION

SAW REQUIREMENTS

The vertical timber webs can be cut on existing

machinery such as a Randek saw.

PRESS REQUIREMENTS

You will require a table press with platten at least 320

x 450mm with a minimum open height of 150mm.

This will allow for production of beams up to 304mm

deep with a single pass. A 35 tonne Birch table press

or similar would be suitable.

OPTION 2 - HIGH VOLUME PRODUCTION

PRESS REQUIREMENTS

We would suggest that you consider the Birch

Double Sided Floor Beam Press for high volume

production.

BIRCH SINGLE SIDED FLOOR BEAM PRESS

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ALPINEAPPROVED DEALER:

Threemilestone, Truro, Cornwall, TR4 9LD technical enquiries : 01872 245456general enquiries : 01872 245450facsimile : 01872 245451www.itwalpine.co.uk

A division of ITW Limited.Registered Office: ITW Limited, Admiral House, St Leonard’s Rd, Windsor, Berkshire. SL4 3BLRegistered in England No. 559693

© ITW Alpine 2008No part of this publication may be reproduced without prior permission from ITW Alpine.Last updated 20-03-08

Disclaimer NoticeAll descriptions and illustrations in this technical manual are intended for guidance only and shall not constitute a " sale by description ". All dimensions given are nominal and ITW Alpine may change the information, products and specifications from time to time for a variety of reasons, without prior notice. This information in this technical manual is provided " as is " at the date specified above. Updates will not be issued automatically. This information is not intended to have any legal effect, whether by way of advice, representation or warranty (express or implied). ITW Alpine accepts no liability whatsoever (to the extent permitted by law) if you place any reliance on this technical manual and you must do so at your own risk.