期刊论文

中文

世界桥梁

1671-7767

2023

51

02

89-96

10.20052/j.issn.1671-7767.2023.02.014

51678068:国家自然科学基金 2015CB057701:国家重点基础研究发展计划（973计划） 201811:湖南省交通科技项目

本校为其他机构

为研究大跨度斜拉桥斜拉索断裂对内置钢锚箱式索梁锚固结构局部受力特性的影响，对斜拉索断裂情况下索梁锚固结构应力进行计算并展开参数分析。以某大跨度双塔双索面钢-混组合梁斜拉桥为背景，采用MIDAS Civil及Abaqus软件分别建立全桥有限元模型及钢锚箱局部有限元模型，研究了运营及断索工况下钢锚箱局部构件的受力，并对运营工况下钢锚箱各板件厚度进行了参数优化分析。结果表明：钢锚箱应力较大位置集中在各板件焊接处；中索断裂工况对钢锚箱的应力影响较大，断索位置附近的锚固区应力增幅最大达21.36%;对于钢-混组合梁斜拉桥，箱梁顶板厚度的变化对内置式钢锚箱各板件受力的影响很小，改变...

This study focuses on the influence of stay cable fracture on the local load bearing behavior of the embedded steel anchor boxes that connect the stay cables and the main girder. The stresses in cable-to-girder anchorages where there exists a broken stay cable are calcu...MORE This study focuses on the influence of stay cable fracture on the local load bearing behavior of the embedded steel anchor boxes that connect the stay cables and the main girder. The stresses in cable-to-girder anchorages where there exists a broken stay cable are calculated and parametric analysis are conducted. Based o...