SmartJoist Design Guide 2011.pub - Tilling Timber

SCOPE OF THIS PUBLICATION
This Design Guide and Load Tables assists in the selection
of SmartJoists for most of the common structural arrangements
met in domestic construction. The Smart-
Frame computer software, in conjunction with this manual,
provides an unparalleled level of design capacity for
engineered timber products.
While specific details are given on suitable methods of
developing lateral restraint, the methods of providing adequate
support, adequate anchorage against wind uplift and
overall structural stability are outside the scope of this
publication.
Information on the above matters can be obtained from
AS1684 Residential timber-framed construction code or
from a structural engineer experienced in timber construction.
Tilling Timber Pty Ltd has structural engineers on staff
who can be contacted for advice on matters concerning
the use of its engineered timber products in timber construction
on the SmartData Customer HelpLine on 1300
668 690 or at smartdata@tilling.com.au.
SUBSTITUTION OF OTHER
PRODUCTS
All load tables in this document are designed using ingrade
tested properties for SmartJoists as manufactured
by Pacific Woodtech Corporation of Washington State,
USA. Other manufacturers I-Joists may have different
properties and, therefore, cannot be designed using these
span tables.
COPYRIGHT
Copyright of this publication remains the property of Tilling
Timber Pty Ltd, and reproduction of the whole or part of
this publication without written permission from Tilling
Timber Pty Ltd is prohibited.
CERTIFICATION
As a professional engineer, qualified and experienced in
timber engineering, I certify that the use of the SmartJoist
members as shown in these tables, and installed in accordance
with the provisions of this Design Guide, will
comply with the requirements of the Building Code of Australia.
These span tables have been prepared in accordance
with standard engineering principles, the relevant
test reports and Australian standards, i.e. -
• AS 1684.1 Residential timber-framed construction
• AS 1170.1 Structural Design Actions – Permanent
Imposed and other actions
• AS 1720.1 Timber Structures - Design Methods
• AS 4055 Wind loads for Houses
• ASTM D 5055 Standard specification for establishing
and monitoring structural capacities of prefabricated
wood I-Joists
Craig Kay, PEng, EC1961, RPEQ5100, BPB0730, CC5635C, NPER
National Product Manager - EWP
Web thickness 44, 51 58 and 70 mm flanges: 9.5 mm, 90 mm flanges: 11.5 mm
34
200
34
34 34 34 34
240 240 240 240
300
44 40 51 70 90
40
SJ20044 SJ24040 SJ24051 SJ24070 SJ24090
SJ30040
SmartJoist sizes available in each state may vary from time to time. Check you local stockist before ordering
34
38
34
300
34
300
34
300
34
360
360
400
51
70
90
58
90
90
SJ30051
SJ30070
SJ30090
SJ36058
SJ36090
SJ40090
SmartJoist dimension tolerances: depth: +0 -3 mm, Flange width: +/- 1 mm, flange thickness: no plus limitation -2 mm.
SmartJoist Design Guide 1