ETABS - Braced Frame Beams

• Jan 15, 2009

• #2

WillisV

Structural

Apr 24, 2005

1,352

Release one end from the rigid diaphragm.

 

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• Jan 15, 2009

• #3

slickdeals

Structural

Apr 8, 2006

2,263

WillisV is right. To clarify, the beam will see no axial loads if a rigid diaphragm is used. You need to assign a semi-rigid diaphragm.

 

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• Jan 15, 2009

• #4

slickdeals

Structural

Apr 8, 2006

2,263

@WillisV,
Could you please confirm if that is what you intended or if there is an alternate way that you can share?

 

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• Jan 15, 2009

• #5

WillisV

Structural

Apr 24, 2005

1,352

slick - I generally assign the points to the rigid diaphragm on a point by point basis (usually I just select them all to begin with and to go assign/joints/diaphragms)rather than by assigning the diaphragm to the slab itself. That way I can go to specific points and delete them from the diaphragm if I need to using assign/joists/diaphragms/none.

 

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• Jan 15, 2009

• #6

zeemas

Structural

Apr 28, 2004

75

@ Slickdeals

As WillisV says, release one end from rigid diaphrgm, then you don't need to assign semi rigid diaphragm. I usually follow this method.

other way is offcourse assign semi rigid diaphragm.

Zee

 

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• Jan 15, 2009

• #7

slickdeals

Structural

Apr 8, 2006

2,263

Thanks guys.

 

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