| 波形钢腹板PC组合箱梁剪切屈曲性能研究 |
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| 引用本文： | 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(2):80-83,102. |
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| 作者姓名： | 胡华万 李俊 强士中 |
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| 作者单位： | 1. 中铁二院工程集团有限责任公司,成都,610031
2. 西南交通大学,成都,610031 |
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| 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。
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| 关 键 词： | 波形钢腹板 剪切屈曲 非线性 整体屈曲 局部屈曲 |
Study on Shear Buckling Property of Corrugated Steel Web PC Combined Box Girder |
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| 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(2):80-83,102. |
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| Authors: | HU Hua-wan LI Jun QIANG Shi-zhong |
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| Institution: | HU Hua-wan1,LI Jun2,QIANG Shi-zhong2 (1.China Railway Eryuan Engineering Group Co.Ltd.,Chengdu,Sichuan 610031,China,2.Southwest Jiaotong University,Chengdu Sichuan 610031,China) |
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| 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 a... |
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| Keywords: | corrugated steel webs shear buckling nonlinear global shear bucking local shear bucking |
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