Sure-Span® Light Gauge Steel Floor Joist System product Guide 2014
VALUE OPEN WEB FLOOR SOLUTION - Thomas Armstrong Alpine Space Joist... · VALUE OPEN WEB FLOOR...
Transcript of VALUE OPEN WEB FLOOR SOLUTION - Thomas Armstrong Alpine Space Joist... · VALUE OPEN WEB FLOOR...
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
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
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
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OPEN WEB FEATURE ALLOWS FOR SERVICE RUNS
VALUE OPEN WEB FLOOR SOLUTION
WIDE FIXING SURFACE
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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.
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.
SPACEJOIST DETAILS:
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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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
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
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ITW ALPINE : SPACEJOIST TECHNICAL MANUAL
Upper Floor Stud
Base Plate
Decking
Rim Beam
Plasterboard
Wallplate
Spanning SpaceJoist
Supporting Stud
Plasterboard
Breather Membrane
Plywood Sheathing
Plasterboard
Panel Head Binder
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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
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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
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4
4
5
6
7
7
7
8
911
10
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ITW ALPINE : SPACEJOIST TECHNICAL MANUAL
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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
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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
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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
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4
5
1
23
4
5
D
D
B
B
A
A
D
D
C
C
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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
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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
D
D
B
B
A
A
D
D
C
C
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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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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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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
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5
7
3
4
5
2
1
6
3
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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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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
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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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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
Cassette Floor Strongback Detail
DETAIL : SJ028
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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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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.
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
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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
GOOD PRACTICE:
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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
INSTALLATION GUIDE:
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
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
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
MACHINERY:
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
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.