Window/Dormer Cuts Wall Collector
Window/Dormer Cuts Wall Collector
(OP)
Our architect has provided me a wood truss, wood stud Church. There are are dormers with windows that start below truss bearing, continuing above truss bearing, cutting the traditional double top plate collector/chord (depending on the load direction) that typically runs the length of the building. The condition exists on both sides of the building, cutting the collector/chord on the long length of the building (parallel to the ridge of the building.)
For longitudinal wind, I have a short diaphragm to shear walls on either end of the building. For transverse wind, I'm thinking that there needs to be drag struts at the location of the cut chords, forming smaller diaphragms between the larger diaphragms. These drag struts would not rest on shear walls, but server to transfer the load from the larger diaphragm to the smaller one back to the larger one. I have no idea on how to compute deflections of this irregular diaphragm. Am I on the right track here? Did I mention scissor trusses and a 12:12 roof pitch?
For longitudinal wind, I have a short diaphragm to shear walls on either end of the building. For transverse wind, I'm thinking that there needs to be drag struts at the location of the cut chords, forming smaller diaphragms between the larger diaphragms. These drag struts would not rest on shear walls, but server to transfer the load from the larger diaphragm to the smaller one back to the larger one. I have no idea on how to compute deflections of this irregular diaphragm. Am I on the right track here? Did I mention scissor trusses and a 12:12 roof pitch?






RE: Window/Dormer Cuts Wall Collector
Another possibility--can you treat the diaphragm for transverse lateral loads as two separate three sided diaphragms (each open on the side at the dormer)?
DaveAtkins
RE: Window/Dormer Cuts Wall Collector
RE: Window/Dormer Cuts Wall Collector
DaveAtkins
RE: Window/Dormer Cuts Wall Collector
RE: Window/Dormer Cuts Wall Collector
DaveAtkins