ca rooftop steel for heliport
im going to research this over the weekend but wanted to see if anyone had any comments before i looked into it. what are the requirements for and where would i find them for a rooftop steel frame/dunnage to support a heliport in ca? im primarily referring to seismic. not sure where steel framing for heliports falls.
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发表于 2009-9-7 18:00:25
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