STUDY AND NEW DESIGN METHOD FOR CHEVRON-BRACED STEEL FRAMES

Li Yurong; Cai Kangfeng; Tang Yue

doi:10.13204/j.gyjz201011028

Volume 40 Issue 11

May 2015

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Li Yurong, Cai Kangfeng, Tang Yue. STUDY AND NEW DESIGN METHOD FOR CHEVRON-BRACED STEEL FRAMES[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(11): 116-121,130. doi: 10.13204/j.gyjz201011028

Citation:

Li Yurong, Cai Kangfeng, Tang Yue. STUDY AND NEW DESIGN METHOD FOR CHEVRON-BRACED STEEL FRAMES[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(11): 116-121,130. doi: 10.13204/j.gyjz201011028

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STUDY AND NEW DESIGN METHOD FOR CHEVRON-BRACED STEEL FRAMES

doi: 10.13204/j.gyjz201011028

1.
Department of Civil Engineering,Anhui University of Science and Technology,Huainan 232001,China

Received Date: 2010-03-20
Publish Date: 2010-11-20

Abstract

Abstract

It is studied the seismic design of steel braced frames in which the braces are configured in a chevron pattern.Strength deterioration in post-buckling phase varies with the slenderness ratio of brace.Because the present chinese seismic code method for the calculation of brace strength supplies significantly different elastic stiffness and actual strength for different values of slenderness ratio of brace,it is complicated for the design of chevron brace.A new procedure to estimate the strength of a chevron brace is proposed,in which the strength of a brace pair is the sum of the yield strength for the brace in tension and the post-buckling strength for the brace in compression.The new method ensures an identical elastic stiffness and a similar strength regardless of the slenderness ratio of brace.The advantage of the proposed method over the conventional chinese seismic code method is demonstrate for the capacity of the proposed method to control the maximum inter-story drift.Finally,concentration of multi-story chevron-braced frames is discussed.
- brace,
- chevron-braced frame,
- buckling,
- slenderness ratio,
- concentration of frame

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References(11)

References

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