| 斜拉桥索塔钢混组合锚固结构力学性能分析和试验研究 |
| |
| 引用本文： | 俞先林,张奇志.斜拉桥索塔钢混组合锚固结构力学性能分析和试验研究[J].铁道科学与工程学报,2009,6(5). |
| |
| 作者姓名： | 俞先林 张奇志 |
| |
| 作者单位： | 1. 东南大学,交通学院,江苏,南京,210096
2. 武汉桥梁科学研究院有限公司,湖北,武汉,430034 |
| |
| 摘 要： | 采用自平衡式加载反力架对苏通大桥索塔钢混组合锚固结构进行足尺模型试验,观测模型的应力、裂缝分布和变形情况.采用ANSYS有限元软件对模型进行数值分析.试验和分析结果表明:索孔出口面上方的混凝土表面最易出现裂缝;钢混结合面表现为弯剪共同作用的特性,顶推荷载水平分力主要由钢锚箱结构承担,混凝土亦承担一小部分,竖向分力可全部由剪力钉传递给混凝土承受;单节段模型的有限元计算结果比多节段模型的计算结果偏大,用单节段模型试验结果代表实桥受力状况偏于安全.
|
| 关 键 词： | 斜拉桥 索塔 钢混组合锚固结构 |
Analysis and test research on mechanical performance for steel-concrete composite anchor structure of cable-stayed bridge pylon |
| |
| YU Xian-lin
,
ZHANG Qi-zhi.Analysis and test research on mechanical performance for steel-concrete composite anchor structure of cable-stayed bridge pylon[J].Journal of Railway Science and Engineering,2009,6(5). |
| |
| Authors: | YU Xian-lin ZHANG Qi-zhi |
| |
| Institution: | YU Xian-lin1,ZHANG Qi-zhi2(1.Transportation College of Southeast University,Nanjing 210096,China,2.Wuhan Bridge Science Research Institute Co.Ltd,Wuhan 430034,China) |
| |
| Abstract: | Full-scale model test on steel-concrete composite anchor structure for pylon of sutong bridge was done by a self-balanced loading reaction frame to observe the stress,crack distribution and deformation of the model.Also numerical simulation was conducted by the finite element software ANSYS.The results of analysis and test show that cracks most easily occur on concrete surface at upperpart of cable anchor duct export.The steel-concrete contacting surface undertakes mutual action of bending moment and shear.... |
| |
| Keywords: | cable-stayed bridge pylon steel-concrete composite anchor structure |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
