轴心受压杆件的弯扭屈曲

王立军

doi:10.13206/j.gjgS19112603

轴心受压杆件的弯扭屈曲

doi: 10.13206/j.gjgS19112603

王立军

华诚博远工程技术集团有限公司, 北京 100052

详细信息

作者简介:
王立军,男,1963年出生,博士,教授级高级工程师。Email:13901212966@sina.com

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出版历程
- 收稿日期: 2019-09-02

TORSION AND FLEXURE BUCKLING OF CENTRALLY LOADED MEMBERS

Lijun Wang

Huachengboyuan Engineering Technology Group, Beijing 100052, China

摘要

摘要: 全面梳理了轴压杆弯扭屈曲的理论分析过程和工程应用方法。只有一个对称轴或无对称轴的截面，可能出现弯扭屈曲；当为双轴对称截面时，可能发生扭转屈曲；这时临界荷载可能小于通常的弯曲屈曲的欧拉临界荷载。根据弹性弯扭屈曲理论，GB 50017—2017《钢结构设计标准》给出了扭转屈曲和弯扭屈曲的设计公式。
- 双轴对称截面 /
- 单轴对称截面 /
- 扭转屈曲 /
- 弯扭屈曲
Abstract: Theoretical analysis and design method of buckling of centrally loaded members by torsion and flexure are introduced. Torsion and flexure buckling may occur for sections with one symmetrical axis or without any symmetrical axis. Torsion buckling may appear for sections with two symmetrical axes. For both situations, critical loads will be lower than Euler's critical load. According to elastic buckling theory, the design formula of torsion buckling as well as torsion and flexure buckling are provided in Standard for Design of Steel Structures (GB 50017-2017).
- sections with two symmetrical axes /
- sections with one symmetrical axis /
- torsion buckling /
- torsion and flexure buckling

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参考文献(15)

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