| 斜拉桥过渡墩处合理横桥向约束体系研究 |
| |
| 引用本文： | 燕斌,龚纬.斜拉桥过渡墩处合理横桥向约束体系研究[J].铁道工程学报,2010,27(4). |
| |
| 作者姓名： | 燕斌 龚纬 |
| |
| 作者单位： | 1. 中交第一公路勘察设计研究院有限公司,西安,710075
2. 铁道第三勘察设计院集团有限公司,天津,300142 |
| |
| 摘 要： | 研究目的:横桥向地震作用下,斜拉桥的过渡墩是抗震设计的薄弱环节,有必要研究斜拉桥过渡墩处合理的横桥向约束体系。以厦漳跨海大桥南汊主桥为工程背景,从提高过渡墩横桥向抗震性能的角度出发,研究3种横桥向约束体系(墩梁主从、墩梁自由、墩顶设置限位挡块)对斜拉桥横桥向抗震性能的影响。研究结论:采用墩梁主从体系会放大过渡墩及其基础的地震响应;采用墩梁自由体系虽然可以减小过渡墩及其基础的地震响应,但会造成墩梁横桥向相对位移过大;采用限位挡块体系可以有效减小过渡墩的地震响应,合理的挡块初始间隙可以通过参数分析得到。
|
| 关 键 词： | 斜拉桥 抗震性能 横桥向约束体系 限位挡块 间隙单元 参数分析 |
Study on the Reasonable Transverse Constraint System for Transitional Pier of Cable-stayed Bridge |
| |
| YAN Bin,GONG Wei.Study on the Reasonable Transverse Constraint System for Transitional Pier of Cable-stayed Bridge[J].Journal of Railway Engineering Society,2010,27(4). |
| |
| Authors: | YAN Bin GONG Wei |
| |
| Institution: | YAN Bin1,GONG Wei2(1.CCCC First Highway Consultants Co.Ltd,Xi\'an,Shanxi 710075,China,2.The Third Railway Survey , Design Institute Group Corporation,Tianjin 300142,China) |
| |
| Abstract: | Research purposes:Under the effect of transverse earthquake,the transitional pier of cable-stayed bridge is one of the weakest links in seismic design,so it is necessary to study the reasonable transverse constraint system for the transitional pier.Taking the Nancha main bridge of Xiamen-Zhangzhou Sea-crossing Bridge as an example,the studies are done on the effect of three transverse constraint systems ( fixed system,free system,and block system) on transverse seismic performance of cable-stayed bridge in ... |
| |
| Keywords: | cable-stayed bridge seismic performance transverse constraint system block system gap element parameter analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
