SmartJoist Design Guide 2011.pub - Tilling Timber

TYPICAL SmartJoist FLOOR CONSTRUCTION DETAILS (Cont’d)
Backer for cladding
attachment.
F6
Use double
joists under
wall where
vertical load
exceeds
29 KN/m
WARNING - CORRECT BLOCKING
FOR SmartJoists
GREEN TIMBER SHALL NOT BE USED
UNDER ANY CIRCUMSTANCE.
All blocking shall be carried out as per details F1-F3, with
blocking to extend to both flanges and skew nailed with
3.15 Ф x 65 nails, one each side of top and bottom flange.
SmartJoist shall be designed
to support load bearing wall
above when not stacked over
wall below.
INTERIOR LOAD BEARING AND BRACING WALLS
Load bearing wall
above must stack
over wall below
2 mm
SmartJoist
blocking
Panel
F7
F8
NOTE: Detail F7 with blocking panel is required for bracing walls.
90 X 45 F5
Cripple skew
nailed to both
flanges with
3.15 x 65 nails.
NON LOAD-BEARING CANTILEVER DETAILS (BALCONIES)
Example cantilever spans and minimum back spans for this detail are shown in the table on the next page
SmartJoist blocking
Non Load bearing wall to a
maximum height of 2400 mm
200 x 50 mm Min. Nail to backer block & joist with 2 rows of 3.15 dia x 75 mm
at 150 mm centres and clinch
A
70 mm
MIN.
Bearing.
F9
Min F8 - Durable or
treated timber
(UNIFORM LOADS ONLY).
1200 mm MAX. 1200 mm MIN.
L
1.5 x L
Non Load bearing wall
to a maximum height
of 2400 mm
A
Backer block - Nail with 2 rows of
3.75 dia x 65 mm nails at 150 centres
and clinch
Section A-A
UNIFORM LOADS ONLY
SmartJoist blocking
NOTE: SmartJoists
MUST BE PROTECTED
FROM THE WEATHER
SmartJoists may be cantilevered up to 1/3
of their back span.
L/3 MAX.
Example 1200 mm
L
Example: 3600 mm
FOR CANTILEVERS SUPPORTING LOAD BEARING WALLS, SEE DETAILS C1 or C2.
SmartJoist Design Guide 15