Masonry detailing for earthquakes by Electronic Blueprint
BCA 2008, which will come into force 1 May 2008, will incorporate the
new earthquake loading standard AS 1170.4-2007 and an amendment to the masonry structures
standard, to account for design and detailing masonry for earthquake loads, AS 3700 Amendment
3. The key to good design of masonry in multistory construction is:
- Provide suitable gaps to isolate stiff masonry walls from the a ductile reinforced concrete
frame (or similar ductile lateral force resisting structure), and
- Simultaneously provide support to prevent masonry walls from being displaced by the horizontal
earthquake inertia forces.
The following details are similar to those that will be included in AS 3700 Amendment 3. They
provide guidance to structural engineers, to ensure that masonry walls have the required separation
and/or support for suitable earthquake performance. Details must be properly designed and adapted
by the Engineer and communicated accurately by the Builder. Clause references are to AS 3700.
For further information on this topic, or for relevant Continuing Professional Development Distance
Learning Packages, please contact Electronic Blueprint at info@electronicblueprint.com.au.
For further information contact:
Electronic Blueprint
phone: +61 2 4360 2255
fax: +61 2 4360 2256
web: www.electronicblueprint.com.au
|
