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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

29卷

期数:

2012年02期

页码:

111-117

栏目:

出版日期:

2012-06-30

文章信息/Info

Title:

Theoretical Research of Shear Performance of H-section Beams with Corrugated Steel Webs

作者:

屈讼昭,王志骞

西安交通大学 土木工程系,陕西 西安 710049

Author(s):

QU Song-zhao, WANG Zhi-qian

Department of Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China

关键词:

波形钢腹板H型截面梁;  抗剪承载力;  极限承载力;  有限元分析;  数值计算

Keywords:

corrugated steel web H-section beam;  shearing capacity;  ultimate bearing capacity;  finite element analysis;  numerical calculation

分类号:

TU391

DOI:

-

文献标志码:

A

摘要:

在前人研究波形钢腹板H型截面梁抗剪承载力成果的基础上,总结归纳了2种形式波形钢腹板在局部屈曲、整体屈曲和合成屈曲3种情况下的临界应力计算公式,通过对不同计算公式的比较提出了推荐公式。利用大量的数值计算分析,分别找出影响2种波形钢腹板H型截面梁极限抗剪承载力的因素,并得出2种不同波形钢腹板H型截面梁极限抗剪承载力计算的等效转换条件。结合前人的试验数据和本文的数值计算结果,提出了剪切稳定系数的实用计算公式。结果表明:波形钢腹板H型截面梁的波高、平子面板宽度、波幅、波长应合理设置,过大或过小都将削弱钢梁的极限承载力; 提出的剪切稳定系数的实用计算公式与数值分析结果和试验数据拟合较好,并且计算简便,便于实际工程设计应用。

Abstract:

The previous research on the shear capacity of two forms of corrugated steel webs was summarized, and the formulas for calculating the local, global and interactive bucking loads of two forms of corrugated steel webs were proposed respectively, and recommended formulas were proposed by comparing of different formulas for calculating bucking loads. Based on results from numerical calculation analysis, the factors of the ultimate shear capacities of two H-section beams with corrugated steel webs were identified respectively, and the transforming conditions of them were proposed. Based on previous experiment data and results from numerical calculation analysis, the practical formulas for calculating shear stability coefficients of two forms of corrugated steel webs were provided. The results show that the wave height, flat sub-panel width, amplitude, wave length of H-section beams with corrugated steel webs should be a reasonable set, if the set is too large or too small, it will weak the ultimate bearing capacity of steel beams; the calculation results of the formulas for predicting the shear stability coefficients of two forms of corrugated steel webs are better fitting with the numerical results and experiment data, and the calculation is simple, easy to practical engineering design.

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备注/Memo

备注/Memo:

收稿日期:2011-12-09
作者简介:屈讼昭(1987-),男,河南襄城人,工学硕士研究生,E-mail:qusongzhao@126.com。

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更新日期/Last Update: 2012-06-20