考虑侧向支撑刚度影响的蜂窝钢梁临界弯矩计算研究

考虑侧向支撑刚度影响的蜂窝钢梁临界弯矩计算研究

钢梁可通过设置侧向支撑并控制间距避免其发生整体弯扭屈曲,支撑刚度会对钢梁的临界弯矩产生影响。利用有限元方法研究了不同侧向支撑刚度下蜂窝钢梁临界弯矩。研究结果表明,随着侧向支撑刚度的增加,蜂窝钢梁临界弯矩亦逐渐增加;但当支撑刚度达到临界支撑刚度后,随着侧向支撑刚度的增加钢梁临界弯矩不变。根据参数分析结果,提出了根据支撑间距确定临界支撑刚度的简化计算公式。...

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Bibliographic Details
Main Authors: 曹宇翔, 马宁, 冯树国, 孙英梅
Format: Article
Language:zho
Published: Editorial Department of Progress in Steel Building Structures, Tongji University 2013-01-01
Series:Jianzhu Gangjiegou Jinzhan
Subjects:
弹塑性弯扭屈曲
蜂窝钢梁
临界侧向支撑刚度
临界弯矩
Online Access:http://steelpro.tongji.edu.cn/thesisDetails?columnId=40757776&Fpath=home&index=0
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