STUDY OF BUCKLING MODES OF LARGE-GAUGE SINGLE-ANGLE COLUMNS CONSIDERING EFFECT OF SUPPORT CONSTRAINTS

BIAN Yingge; GUO Yaojie; XIONG Chuan; CAO Ke; SUN Yun

doi:10.13204/j.gyjzG20071608

Volume 51 Issue 3

Jul. 2021

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BIAN Yingge, GUO Yaojie, XIONG Chuan, CAO Ke, SUN Yun. STUDY OF BUCKLING MODES OF LARGE-GAUGE SINGLE-ANGLE COLUMNS CONSIDERING EFFECT OF SUPPORT CONSTRAINTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(3): 91-97. doi: 10.13204/j.gyjzG20071608

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BIAN Yingge, GUO Yaojie, XIONG Chuan, CAO Ke, SUN Yun. STUDY OF BUCKLING MODES OF LARGE-GAUGE SINGLE-ANGLE COLUMNS CONSIDERING EFFECT OF SUPPORT CONSTRAINTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(3): 91-97. doi: 10.13204/j.gyjzG20071608

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STUDY OF BUCKLING MODES OF LARGE-GAUGE SINGLE-ANGLE COLUMNS CONSIDERING EFFECT OF SUPPORT CONSTRAINTS

doi: 10.13204/j.gyjzG20071608

1. School of Civil Engineering of Wuhan University, Wuhan 430072, China;
2. China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China

Received Date: 2020-07-16
Available Online: 2021-07-17

Abstract

Abstract

To study the buckling mode of large-gauge single-angle columns,axial compression tests of 90 columns were conducted. Considering the effect of flexural stiffness and torsional stiffness of supports,the column's flexural slenderness ratios of the non-symmetry axis and torsional slenderness of the symmetry axis were corrected. The study showed that the buckling modes of large single-angle columns were in flexural buckling predominantly. And it's unnecessary for columns below 40 in slenderness ratio to calculate the flexural-torsional buckling capacity. It's safe for engineering projects to only consider the flexural buckling capacity of the columns' minor axis.
- large-gauge single-angle column,
- buckling mode,
- support constraint,
- flexural buckling,
- torsional buckling

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References(19)

References

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