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structural insulated panel roof diaphragms
does anyone out there know where i can get some guidance on diaphragm strength of structural insulated panels (sips) used to clad a timber-framed roof?
i have heavy timber (likely 12x16 or bigger) tied-rafters 13' o.c. with a 8 on 12 pitched gable roof. building is 40'x80'. i would like to span the sips between the rafters and have no purlins, or ridge beam, between the timber rafters. essentially the sips would simple-span between the rafters and their only connection would be only to the top of the timber rafters and a continous timber around the roof perimeter, which supports the wall infill studs between the timber frames and serves as the diaphragm chord members.
any help would be appreciated.
thanks.
a significant amount of research was performed on this topic at virginia tech. in particular this dissertation by david carradine would be of use:
check out the icbo reports for different manufacturers; r-control or premiere have published diaphragm & shear values.
thanks for the replies. i will look into the va tech and icbo reports.
thanks again

2009-09-16, 11:26 AM	#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	structural insulated panel roof diaphragms structural insulated panel roof diaphragms does anyone out there know where i can get some guidance on diaphragm strength of structural insulated panels (sips) used to clad a timber-framed roof? i have heavy timber (likely 12x16 or bigger) tied-rafters 13' o.c. with a 8 on 12 pitched gable roof. building is 40'x80'. i would like to span the sips between the rafters and have no purlins, or ridge beam, between the timber rafters. essentially the sips would simple-span between the rafters and their only connection would be only to the top of the timber rafters and a continous timber around the roof perimeter, which supports the wall infill studs between the timber frames and serves as the diaphragm chord members. any help would be appreciated. thanks. a significant amount of research was performed on this topic at virginia tech. in particular this dissertation by david carradine would be of use: check out the icbo reports for different manufacturers; r-control or premiere have published diaphragm & shear values. thanks for the replies. i will look into the va tech and icbo reports. thanks again __________________ 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]