Influence of structural nonlinearities OH Internal force of super-long span
cable-stayed bridge under service stag

Journal of Chongqing Jiaotong University(Natural Science) ›› 2005, Vol. 24 ›› Issue (1): 5-8.

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Influence of structural nonlinearities OH Internal force of super-long span cable-stayed bridge under service stag

ZHANG Xue-song¹,² ， LIANG Peng¹ ， ⅡA Li-jun¹ ， XIAO Ru-cheng¹

1．Department of Bridge Enecring，Tongji University，Shanghai 200f)2，China；2．School of civil Enginee ＆Architecture， Chongqinging Jiaotong University，Cho~,qinging 400074，China

Received:2004-01-14 Revised:2004-04-08 Online:2005-02-15 Published:2015-05-18

非线性因素对超大跨度斜拉桥活载内力的影响*

张雪松¹,²，梁鹏¹，贾丽君¹，肖汝诚¹

1.同济大学桥梁工程系，上海200092；2.重庆交通学院土木建筑学院，重庆40007

作者简介:张雪松(1975一)，男，重庆万州人，讲师，从事大跨径桥梁结构非线性研究
基金资助:
国家自然科基金项目(59895410)资助

Abstract

Abstract: In this paper influence of structural nonlinearities on internal force of super-long span Cable-Stayede Llnder service stage is studied ．3he cable sag efect，the beam-columnefect and the a displacement effect are taken into accountinthe study．Based on the study of a cable-stayed bridge with a main spai of meter than lO00-meter-long ．the nolinear influence factors of internal force at controlling sections are evaluated ．Finally,the measlles to reduce the influence of nonlineafiles presented

Key words: nonlinearity, super-long span, cable-stayed bridges, internal force under service stage

摘要： 笔者研究了非线性因素对超大跨度斜拉桥使用阶段内力的影响，分析中同时考虑了拉索垂度效应、P一△效应和大位移效应的影响。以一座主跨超千米的斜拉桥为例，给出了各控制截面内力的非线性影响系数，并提出了减小超大跨度斜拉桥非线性影响的措施

关键词: 非线性, 超大跨度, 斜拉桥, 使用阶段内力

CLC Number:

U448.27

ZHANG Xue-song, ， LIANG Peng ， ⅡA Li-jun ， XIAO Ru-cheng. Influence of structural nonlinearities OH Internal force of super-long span cable-stayed bridge under service stag[J]. Journal of Chongqing Jiaotong University(Natural Science), 2005, 24(1): 5-8.

张雪松,，梁鹏，贾丽君，肖汝诚. 非线性因素对超大跨度斜拉桥活载内力的影响*[J]. 重庆交通大学学报（自然科学版）, 2005, 24(1): 5-8.

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Influence of structural nonlinearities OH Internal force of super-long span cable-stayed bridge under service stag

非线性因素对超大跨度斜拉桥活载内力的影响*

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