| 武汉二七长江大桥结构体系方案研究 |
| |
| 引用本文： | 陈炜,张德平. 武汉二七长江大桥结构体系方案研究[J]. 桥梁建设, 2011, 0(1) |
| |
| 作者姓名： | 陈炜 张德平 |
| |
| 作者单位： | 中铁大桥勘测设计院有限公司,湖北,武汉,430050 |
| |
| 摘 要： | 为优化三塔结合梁斜拉桥的受力和变形状态,以武汉二七长江大桥主桥设计为依托,采用有限元软件SCDS,从拉索布置、塔梁支承方式、桥塔刚度、主梁形式的选择及混合梁结合面位置的确定5个方面对该桥结构方案进行研究、比选.研究结果表明:加大中塔刚度是改善结构整体刚度的理想方式;中塔塔、梁固结,边塔竖向支承体系优于其他塔、梁支承体系;在边塔竖向支承的前提下,中塔与梁部铰接比完全固结优越;桥塔处主梁竖向采用支座支承的方式较优;混合梁结合面应选择在该截面弯矩影响线与基线围成的面积尽可能小的地方.
|
| 关 键 词： | 斜拉桥 桥塔 结合梁 混合梁 刚度 支承体系 |
Research of Structural System Schemes for Wuhan Erqi Changjiang River Bridge |
| |
| CHEN Wei,ZHANG De-ping. Research of Structural System Schemes for Wuhan Erqi Changjiang River Bridge[J]. Bridge Construction, 2011, 0(1) |
| |
| Authors: | CHEN Wei ZHANG De-ping |
| |
| Affiliation: | CHEN Wei,ZHANG De-ping(China Railway Major Bridge Reconnaissance & Design Institute Co.,Ltd.,Wuhan 430050,China) |
| |
| Abstract: | To optimize the mechanical behavior and deformation status of the three-pylon composite girder cable-stayed bridge for the main bridge of Wuhan Erqi Changjiang River Bridge,the finite element software SCDS was used to research and compare the structural system schemes for the bridge from five aspects of the arrangement of stay cables,supporting ways of pylons and girder,rigidity of the pylons,selection of main girder type and determination of hybrid girder connection interface locations.The results of the r... |
| |
| Keywords: | cable-stayed bridge pylon composite girder hybrid girder rigidity supporting system |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
