I have a 8-story steel frame and I

• Feb 26, 2002

• #2

dlew

Structural

Jul 31, 2001

171

US

peterman,

For a 8-story high building I would use rigid members for vertical braces. Steel rods may be adequate for low pre-engineered buildings where lateral displacement of the structure is not a significant factor.

AEF

 

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• Feb 26, 2002

• #3

Taro

Structural

Nov 29, 2000

713

US

Is the building in an area of high seismicity? If so, most building codes limit the use of "tension only" braces for multistory buildings because they have historically performed poorly in past earthquakes. If they are used, they are often required to be designed for amplified forces in order to limit the amount of yielding that will occur.

 

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• Feb 27, 2002

• #4

ishvaaag

Structural

Aug 17, 2001

3,665

DE

Yes, the main shakeouts may well exceed the limit capacity of the braces in tension in an earthquake, to loss of lateral stability. If an even low demand earthquake is to be assumed, better use rigid braces.

 

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• Mar 1, 2002

• Thread starter
• #5

peterman722

Civil/Environmental

Feb 19, 2002

10

CN

Thank you all for your replys, which give me many helpful information.

 

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