Impact of Auxiliary Pier's Position on Structure of Partially
Cable-Supported Girder Bridge

Journal of Chongqing Jiaotong University(Natural Science) ›› 2010, Vol. 29 ›› Issue (4): 497-500.

Impact of Auxiliary Pier's Position on Structure of Partially Cable-Supported Girder Bridge

CHENG Yu-peng¹, WANG Fu-min², SHANG Jun-nian²

1.School of Civil Engineering& Arch itecture, Chongqing Jiao tong University, Chongqing 400074, China; 2.China Merchants Chongqing Communications Research & Design Institute Co., Ltd., Chongqing 400067, China

Received:2010-05-05 Revised:2010-05-19 Online:2010-08-15 Published:2015-01-22

辅助墩位置对索辅梁桥结构效应的影响

程宇鹏¹, 王福敏², 尚军年²

1.重庆交通大学土木建筑学院, 重庆 400074; 2.招商局重庆交通科研设计院有限责任公司, 重庆 400067

作者简介:程宇鹏(1984—),男,山西大同人,硕士研究生,从事桥梁结构分析研究。E-mail:chypeng@126.com。

Abstract

Abstract: A three-dimensional finite element calculation model was established for the main bridge of the Dongshuimen Yangtze River Bridge in Chongqing by using software MIDAS Civil. It was obtained that different positions of the auxiliary pier exerted influence on the main tower, the bottom chord on the bracket, thema in girder in the bridge completion state of the new partially cable-supported girder bridge. The calculation results demonstrated that increase of auxiliary piers would lead to bend ingmoment of the lower main tower, vertical displacement of upper tower, smaller axial stress and deflection of themain girder central span and greater bending moment of bottom chord on the bracket

Key words: partially cable-supported girder bridge, auxiliary pier, bridge completion state, structure effect

摘要： 以重庆东水门长江大桥为研究对象,采用MidasCivil大型桥梁分析软件进行建模,研究辅助墩位置的变化对新型索辅梁桥成桥状态的主塔、牛腿处下弦杆、主梁的影响。计算结果表明,增加辅助墩后,索辅梁桥的主塔塔底弯矩、塔顶纵向位移、主梁跨中轴力、跨中挠度都有所减小,牛腿处下弦杆的弯矩增大。

关键词: 索辅梁桥, 辅助墩, 成桥状态, 结构效应

CLC Number:

U448.27

CHENG Yupeng, WANG Fumin, SHANG Junnian. Impact of Auxiliary Pier's Position on Structure of Partially Cable-Supported Girder Bridge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2010, 29(4): 497-500.

程宇鹏, 王福敏, 尚军年. 辅助墩位置对索辅梁桥结构效应的影响[J]. 重庆交通大学学报（自然科学版）, 2010, 29(4): 497-500.

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