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thatched roof shear capacity?
i have a project in hawaii in which a african thatched roof will be used. it uses compressed berg or mountain grass that is about 10-12" thick. it is tied to 2" dia. purlins that are 10" on center and the purlins are supported every 3.5'. i need the roof to have an allowable shear capacity of 200plf. if i calculate the shear capacity ignoring the thatch i can only get about 40plf. the thatching is pretty solid and stiff. i know it must contribute to the strength and stiffness of the roof assembly.
i have been unsuccessful in finding any shear testing information although i know thatch roof construction is very common in some parts of europe.
anybody have experience with thatched roofing?
thanks.

2009-09-16, 01:30 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	hatched roof shear capacity thatched roof shear capacity? i have a project in hawaii in which a african thatched roof will be used. it uses compressed berg or mountain grass that is about 10-12" thick. it is tied to 2" dia. purlins that are 10" on center and the purlins are supported every 3.5'. i need the roof to have an allowable shear capacity of 200plf. if i calculate the shear capacity ignoring the thatch i can only get about 40plf. the thatching is pretty solid and stiff. i know it must contribute to the strength and stiffness of the roof assembly. i have been unsuccessful in finding any shear testing information although i know thatch roof construction is very common in some parts of europe. anybody have experience with thatched roofing? thanks. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]