01.2 - Engineering Design (issue 2) · OPW18/0008

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   
   

 
 
 
   
 
 
 

 

 

 

 

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PLYWOOD BRACING FIXING TABLE: Nailing plates or framing Ply bracing sheet fixed to
anchors (legs not bent) the bottom of the truss
METHOD |WALL TYPE| NAIL SPACING (mm) FIXING CAPACITY to either end of nogging chord on the joke, Naling
atten as per brace sheet
EDGE ] INT | EDGE (kn/m) 6/2.80 mm nails each face. , ,
VERT VERT HOR Shear blocks nailed oo. |
as per table Provide timber frame nogging
METHOD A| PLY 150 300 150 |M12 RODS each end & M12 bolts at 1200mm crs 6.4 between trusses to trim
METHOD B| PLY 150 | 300 | 50 [M12 Bolts each end & at 1200mm mox crs 6.0 edge of sheet,
NOTES: | . Le Loe Copacities of Shear Blocking
1. All walls are to be fixed in accordance with manufacturer's specifications. Refer to manufacturer's specifications for Gap must be provided — —
bracing capacities of walls less than 900mm long. to allow for truss Fixing No. | Copacity (kN)
2. If stud wall is sheet braced both sides then bottom place is to be 45mm min. Tiedown at bottom of each end deflection 3.05 Nails 6 5.0kN
of the panels is to be doubled. 3.33 Nails 6 S.5KN
(le single side 1/M12 Bolt - Double 2/M12 Bolts) Shear bocks M12 Bolt 1 5.1kN
(le single side 1/M12 Rod — Double 1/M12 Rod + 1/M12 bolt) nailed or bolted No. 14 Type 17 Screw} 2 6.9kN

3. Ensure the correct number of shear blockings ore provided for the capacity of the bracing wall. (ie 12kn wall brace

required 12kN of shear blocking)

* Indicates these bracing panels if in roof load bearing walls, they will require rods at each end designed at specific

centers for top plate tie-down. (1800mm max centers)

Rod or bolt
as per table
above.

om
et é &

ee

 

 

 

or 2/30x2.8mm¢ nails for metal brace
to each stud and plate.

2/50x2.8mm¢ nails for timber ee

  
  
 

}—— Provide double studs

at panel joins to allow
sufficient edge distances
to both studs and panels.
Typical.

 

 

 

 

Horizontal butt joints are
permitted. Provide nails fixed

at 150mm centers for Method A
and 50mm centers for Method B

 

 

 

 

Bolts or Nails as per table:
below. Blocks are required
either side of rafter or
truss bottom chords

Forces must be:
transferred in Ww

   

 

 

 

 

 

Capacities of Shear Blocking
Fixing No. | Capacity (kN)
3.05 Nails 6 5.0kN
3.33 Nails 6 S.5KN
M12 Bolt 1 ‘S.1kN
No. 14 Type 17 Screw 2 6.9kN

 

 

TRUSSES PARALLEL TO BRACING WALL

  
  

‘Truss bottom
chord

 

 

 

 

 

 

 

 

 

 

this direction Bracing Wall deflection
Blocking large
enough to prevent Walls at
splitting Right Angles
fo on bolt at ! Capacities of Shear Blocking
mm max centers Fixing No. | Capacity (kN)
3.05 Nails 6 5.0kN
Plywood Minimum Thickness (mm) 3.33 Nails 6 5.5kN
Stress Grade | 450 | 600 M12 Bolt } oun
No. 14 Type 17 Screw 2 6.9kN
F8 7 9
a ; ; WALL TO TRUSSES / CEILING AND FLOOR
F27 4 45

 

 

 

 

PLYWOOD BRACING THINCKNESS

 

 

 

 

 

 

I

 

 

 

 

NOTES:

 

1. Do not
2. Check and verify all dimensions
prior to commencement of work.

Fix bottom plate ——
to floor frame or
slab with nominal
fixing only

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

scale drawings.

1800mm_min to _2700mm_max.

ANGLE BRACE

No end splits allowed; drill if
necessary

Min 75x15mm F8 brace or
metal angle of min. nominal
section 20x18x1.2mm
Bracing Capacity of 1.5kN/m

Internal Bracing Wall

    
  

Top Plate

External Wall S

30x 0.8mm G.l. Straps
with nails each end.
Refer to table below for
quantity of required

A
studs!”

as per table below

 

30x0.8mm galv. metal strap looped over
plate and fixed to stud with 3/30x2.8mm¢

 

galv. flat-head nails (or equivalent) to each

 

end. Alternatively provide single straps to
both sides, with nails per strap end, or
equivalent anchors or other fasteners.

 

nails.
Capacities of Shear Blocking
No of Straps | No of Nails | Capacity (kN)
1 Strap 4/2.86 3.3kN
1 Strap 6/2.86 4.9kN
2 Strap 2/2.86 6.6kN
2 Strap 6/2.86 9.8kN

 

 

 

 

INTERNAL BRACING WALL TO EXTERNAL FRAME

 

 

 

 

 

BRACING DIAPHRAGM IN STEP—OUT

2 Nai
of br

Gap must be provided
to allow for truss

2 Nailing
of bridgin

with 6/2.86 mm nails to
each face.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

——Frame as per
Bolts as per- Framing specifications
Toble. yr packer
\ ia
al [ EJ
90mm = } , —
lls each end f \ 90x45 Seasoned Timber
idging piece Ba bridging piece on edge
Capacities of Fixings
Fixing No. | Capacity (kN)
M12 Bolt 1 18kN
M10 Bolt 1 15kN
BRACING WALL TO I-JOISTS
—+—Frame as per
Framing specifications
Bolts as per-
Toble. ‘Solid packer
fo
90mm , j

  

 

 

 

 

 

 

 

 

 

plates each end—-
g, legs not bent

 

 

 

Capacities of Fixings
Fixing No. | Capacity (kN)
M12 Bolt 1 18kN
M10 Bolt 1 15kN

 

 

 

 

BRACING WALL TO SOLID FLOOR JOISTS

 

 

Frame as per-—*t
Framing specifications
It

 

 

 

 

 

 

 

 

  

 

r—Bolts as per
Table.

 

 

  

Double joists or 450mm long full depth cleat:
Nailed to joist with 6/75 x 3.15mm nails

 

Capacities of Fixings

 

 

Fixing No. | Capacity (KN)
M12 Bolt 1 20kN
M10 Bolt 1 15kN

 

 

 

 

 

BRACING WALL TO FLOOR JOISTS

   
 

Shear blocks
nailed as per
table.

T— 90x45 Seasoned Timber
bridging piece on edge

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Issue|Made By| Date _ DESCRIPTION PROPOSED NEW RESIDENCE at CONSULTING STRUCTURAL & CIVIL ENGINEERS]Scale: NTS
=| 0 BDK 16/11/17 | Preliminary Issue — Not for Construction Office: Suite 8/137 Brisbane Road, Mooloolaba
g 1 BDK | 04/12/17] Preliminary Issue — Not for Construction LOT 120 CNR SEAMOUNT QUAY é& MERMAID QUAY, NOOSAVILLE Postal: P.O. Box 7117 Job No.: 17-0417
g 2 BDK | 11/12/17] Preliminary Issue — Not for Construction BUILDER: RYAN DESIGNER HOMES Sippy Downs, QLD. 4556 .
yy Desi = - Ph: (07) 5444 5578 Dwg No.: S18
esigned By : J. SWEET BEng (Civil) (hons) Drawn By: BDK Date: 16/11/17 Web: hrdesigngroup.com.qu
Certified By : B.R. CROMAR BEng (Civil) MIEAust CPEng RPEQ NER Date : 16/11/17 Email: [email protected] BRACING DETAILS
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