Article Review 4

I came across this article while i was on this website www.infolink.com.au

Since,this sem concentrates more on portal frames, i think this would be a great article to review on.

In this article the architect expressed his concern with the large span of building that he is designing.The engineer said"Bonnaci Group engineer David Farrar says the building required very substantial footings and ground anchoring because of its height and size. "Sway was a big issue for this building because of the racking requirements," he says. "The maximum allowable sway at the top was 150mm, although we kept the sway to only 100mm.

"To solve the sway problem in an economical design, we used a propped portal framed building utilising four 35m long, 600mm diameter props on one side of the building, with a wind truss on the roof".

"We took the unusual step for an industrial building of using ground anchors in the main footings in order to substantially reduce the volume of concrete required in the footings, as wind uplift forces were critical for the footing design."

Source: Building Products News