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CLC number: TU311.2; TU391
On-line Access: 2019-08-05
Received: 2019-04-25
Revision Accepted: 2019-07-04
Crosschecked: 2019-07-18
Cited: 0
Clicked: 2837
Citations: Bibtex RefMan EndNote GB/T7714
Effective length factor of a non-symmetrical cross-bracing system with a discontinuous diagonal
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Yong Chen, Yong Guo, Hai-wei Xu. Effective length factor of a non-symmetrical cross-bracing system with a discontinuous diagonal[J]. Journal of Zhejiang University Science A, 2019, 20(8): 590-600.
@article{title="Effective length factor of a non-symmetrical cross-bracing system with a discontinuous diagonal",
author="Yong Chen, Yong Guo, Hai-wei Xu",
journal="Journal of Zhejiang University Science A",
volume="20",
number="8",
pages="590-600",
year="2019",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1900169"
}
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%T Effective length factor of a non-symmetrical cross-bracing system with a discontinuous diagonal
%A Yong Chen
%A Yong Guo
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%J Journal of Zhejiang University SCIENCE A
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%D 2019
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1900169
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T1 - Effective length factor of a non-symmetrical cross-bracing system with a discontinuous diagonal
A1 - Yong Chen
A1 - Yong Guo
A1 - Hai-wei Xu
J0 - Journal of Zhejiang University Science A
VL - 20
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%@ 1673-565X
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1900169
Abstract: A non-rectangular frame panel usually contains an asymmetrical cross-bracing system with interrupted diagonals, leading to a more complicated buckling behavior than a symmetrical bracing system with continuous diagonals. There have been many studies of the stability theory of symmetrical cross-bracing systems, but few related to non-symmetrical systems. In this study, we analyzed elastic out-of-plane buckling of a general non-symmetrical cross-bracing system with a discontinuous diagonal. The discontinuous and continuous diagonals have different material and geometrical properties, and are not intersected at their mid-spans. A characteristic equation is presented to compute the critical loading of a non-symmetrical cross-bracing system when the supporting diagonal is under either compression or tension. The results show that the characteristic equation of a non-symmetrical bracing system can be transformed into a form the same as that of a geometrically mono-symmetrical system. To facilitate design applications, direct closed-form empirical equations of effective length factor are established for a general non-symmetrical cross-bracing case. The validity of the proposed empirical equations was verified by comparing predicted and theoretical results, and those from a stiffness approach.
This paper presents an elastic instability analysis of cross-bracing systems that can exhibit asymmetry and discontinuity.Generally speaking,the paper is well-written and the materials are logically presented.
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