Flexible Roof Diaphragm Over Multiple Supports
Flexible Roof Diaphragm Over Multiple Supports
(OP)
All,
How are most of you designing a roof diaphragm that spans across multiple supports (interior shear walls)? Should I look at each span as simply supported or as a continuous beam? If I analyze as a continuous beam is my chord force (M/B) calculated using the positive and/or negative moment?
Thanks
How are most of you designing a roof diaphragm that spans across multiple supports (interior shear walls)? Should I look at each span as simply supported or as a continuous beam? If I analyze as a continuous beam is my chord force (M/B) calculated using the positive and/or negative moment?
Thanks






RE: Flexible Roof Diaphragm Over Multiple Supports
RE: Flexible Roof Diaphragm Over Multiple Supports
For wood framed structures, typically single family homes, shear walls are relatively close together (i.e. short diaphragm spans). In this case, an envelope solution from both the flexible and rigid diaphragm distribution is used. A good panel discussion on this topic can be found from this link: http://www.seaint.org/wood.htm
RE: Flexible Roof Diaphragm Over Multiple Supports
I’m currently looking at a one story building, irregular shaped with offset shear walls, reentrant corners and multiple drag strips...a little more complicated than your average box. I certainly want to simplify my analysis but don’t know if oversimplification is going to work here.
RE: Flexible Roof Diaphragm Over Multiple Supports
RE: Flexible Roof Diaphragm Over Multiple Supports
Regards,
Lutfi
RE: Flexible Roof Diaphragm Over Multiple Supports
DaveAtkins