|Table of Contents|

Field load testing of inclined tower cablestayed bridge without backstays

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年05期
Page:
59-63
Research Field:
Publishing date:
2009-10-20

Info

Title:
Field load testing of inclined tower cablestayed bridge without backstays
Author(s):
LIU Yongjian1; 2;  YANG Jian1;  LIANG Peng1;  YAN Donghuang2;  XU Hongsheng2
1. Key Laboratory for Bridge and Tunnel of Shaanxi Province, Changan University, Xian 710064, Shaanxi, China; 2. School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha 410076, Hunan, China
Keywords:
bridge engineering;  inclined tower cablestayed bridges without backstays;  steelconcrete composite girder;  field load testing
PACS:
U448.27
DOI:
-
Abstract:
This paper presents a field load testing and analytical modeling for the inclined tower cablestayed bridge without backstays to evaluate its design theory and structural behavior. The test results are compared with the calculating results of 3D finite element model, including the static behavior, the stress and deformation of the girder and bridge tower, cable forces, and the dynamic behavior, the structural frequency, damping ratio and impact coefficient. The torsional properties of the box girder with 13meterlong steelconcrete composite cantilevers are analyzed. The results show that the measured values agree well with the calculating ones, while at the twisting working condition the deformation of two sides of the box girder had much difference, which means the relatively lower torsional stiffness. On the other hand, the measured damping ratio of the bridge, whose girder has long steelconcrete composite cantilevers, is larger than others, which means a better antivibration performance. The results mentioned above verify the design theory and construction method, and also provide reference for the design of the same type bridge. 3 tabs, 10 figs, 11 refs.

References:

［1］Shao X D,Zhao H,Li L F,et al.Design and experimental study of a harpshaped single span cablestayed bridge ［J］. Journal of Bridge Engineering，2005,10(6)：658665.
[2]王春生，黄本才，俞欣，等.钢桥塔的塔形力学特性分析［J］.长安大学学报：自然科学版,2007,27(4)：4651.WANG Chunsheng,HUANG Bencai,YU Xin,et al.Mechanics behavior analysis for steel pylons of bridge structures［J］.Journal of Changan University:Natural Science Edition,2007,27(4)：4651.
[3]胡庆安，乔云强，刘健新，等.斜风作用下桥塔施工阶段抖振性能［J］.交通运输工程学报,2008,8(2)：4043.HU Qingan,QIAO Yunqiang,LIU Jianxin,et al.Buffeting performance of bridge tower under yawed wind during construction［J］.Journal of Traffic and Transportation Engineering,2008,8(2)：4043.
[4]张阳，邵旭东，王皓磊，等.大悬臂钢混凝土组合脊骨梁的剪力滞效应［J］.中国公路学报，2008，21(3)：5763.ZHANG Yang,SHAO Xudong,WANG Haolei,et al.Shear lag effects in steelconcrete composite spine girder with long cantilevered flanges［J］.China Journal of Highway and Transport,2008,21(3)：5763.
[5]刘永健，周绪红，颜东煌，等.单边索斜塔钢混凝土结合梁斜拉桥塔梁根部应力分析 ［J］.中国公路学报，2003，16(2)：6569.LIU Yongjian，ZHOU Xuhong,YAN Donghuang,et al.Stress analysis of towerbeam joint of inclined tower cablestayed bridge with steelconcrete girder［J］.China Journal of Highway and Transport，2003，16(2)：6569.
[6]刘永健，刘君平，温向阳.大悬臂钢混凝土组合梁反变形预压法施工监控与分析 ［J］.中外公路，2005，25(2)：4446.LIU Yongjian，LIU Junping，WEN Xiangyang.Analysis and construction monitor of 13meterlong steelconcrete composite cantilever beam under load［J］.Journal of China & Foreign Highway，2005，25(2)：4446.
[7]李立峰，邵旭东.超长悬臂钢砼组合行车道梁的理论分析与试验研究 ［J］.重庆交通大学学报:自然科学版，2007，26(6)：2428，37.LI Lifeng，SHAO Xudong.Theoretic and experimental research on loading characteristics of cantilever beam in composite structure［J］.Journal of Chongqing Jiaotong University:Natural Science，2007，26(6)：2428，37.
[8]湖南大学土木工程学院.长沙市洪山大桥全桥1∶30相似模型静动力试验研究成果报告集 ［R］.长沙：湖南大学，2001.
[9]章曾焕，卢永成.哈尔滨市太阳桥的设计 ［C］//张奎鸿.上海市公路学会第五届年会学术论文集.上海：《上海公路》编辑部，2002：9498.
[10]张俊杰.景德镇白鹭大桥主桥钢梁设计［J］.中国市政工程，2008(3)：3233，41.ZHANG Junjie.Design of the steel girders on the main part of Bailu bridge in Jingdezhen［J］.China Municipal Engineering,2008(3)：3233，41.
[11]施新欣，阮欣，石雪飞.无背索斜拉桥体系特点及关键问题初步分析 ［C］//中国土木工程学会桥梁及结构工程分会.第十六届全国桥梁学术会议论文集：上册.北京：人民交通出版社，2004：248253.

Memo

Memo:
-
Last Update: 2009-10-20