波形钢腹板 PC 组合箱梁剪切屈曲性能研究

胡华万; 李 俊; 强士中

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铁道工程学报 ›› 2011, Vol. 28 ›› Issue (2) : 80-83.

路网研究

波形钢腹板 PC 组合箱梁剪切屈曲性能研究

胡华万1李俊2强士中2

作者信息 +

Study on Shear Buckling Property of Corrugated Steel Web PC Combined Box Girder

HU Hua － wan1，LI Jun2，QIANG Shi － zhong2

Author information +

文章历史 +

摘要

研究目的: 波形钢腹板预应力箱梁中波形板处于纯剪受力状态，波形钢腹板的抗剪承载力由截面的剪切屈曲强度控制。本文采用一致缺陷模态法进行波形钢腹板缺陷模拟，并计入材料非线性和几何非线性，在此基础上研究波纹形状、腹板整体外形尺寸对波形钢腹板剪切屈曲极限承载力和屈曲模态的影响，为相关桥梁的计算提供一定的参考。

研究结论: 通过对比理论公式及模型分析结果，得出了波形钢腹板随板厚、波高、斜板倾角、直板段宽度及梁高等的变化趋势。

Abstract

Research purposes: The corrugated steel web of corrugated steel webs prestressed box girder is in pure shear stress state． The shear － resistant capacity of the corrugated steel web depends on the shear buckling strength of the section． The simulation was done for the defect of corrugated steel web with uniformly defect modal analysis method，and the defects were included in the material nonlinearity and geometric nonlinearity． On the basis of it，the study was done on the influences of corrugation configuration and the overall profile dimensions of the corrugated web on the ultimate shear bucking bearing capacity of the corrugated web and buckling mode for providing the reference to calculation of the similar bridge．

Research conclusions: Through comparing the results of theoretical formulas and model analysis，the change tendencies of the thickness of corrugated steel webs ，wave height ，the obliquity of inclined plate，the width of straight section and the height of bean were obtained．

导出引用

胡华万, 李俊, 强士中. 波形钢腹板 PC 组合箱梁剪切屈曲性能研究[J]. 铁道工程学报, 2011, 28(2): 80-83

HU Hua － wan, LI Jun, QIANG Shi － zhong. Study on Shear Buckling Property of Corrugated Steel Web PC Combined Box Girder[J]. Journal of Railway Engineering Society, 2011, 28(2): 80-83

中图分类号： ［U24］

参考文献

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