Space?Forced?Analysis?on?Large-Span?Continuous?Rigid?Frame??Bridge?with?Wide?Box?Girder

doi:10.3969/j.issn.1674-0696.2009.05.01

Journal of Chongqing Jiaotong University(Natural Science) ›› 2009, Vol. 28 ›› Issue (5): 813-817.DOI: 10.3969/j.issn.1674-0696.2009.05.01

Space?Forced?Analysis?on?Large-Span?Continuous?Rigid?Frame??Bridge?with?Wide?Box?Girder

HE Chang¹, LIANG Li-hui²

1.?Highway?Planning?Survey?Design?＆?Research?Institute?of?Sichuan?Province?Communications?Department,?Sichuan?Chengdu?610041,?China?;2.?China?Highway?Planning?＆?Design?Institute?（?HPDI）,?Beijing?100010,?China

Received:2009-02-13 Revised:2009-04-05 Online:2009-10-15 Published:2015-04-15

大跨宽箱连续刚构桥空间受力分析

何??畅¹,梁利辉²

1.四川省交通厅规划勘察设计研究院,四川成都610041;2.中交公路规划设计院,北京100010

作者简介:何??畅(1975—),男,四川南充人,工程师,工学硕士,主要研究方向是大跨桥梁空间仿真分析。E-mail:jxche2661@sina.com.cn。

Abstract

Abstract: Because?of?the?mechanic?feature?of?large?span?continuous?rigid?frame?bridge?with?wide?box?girder?itself,the?phenomena?of?cracks?of?the?box?girder?and?excessive?deflection?in?the?middle?of?the?span?widely?exist.?Taking?Nanhedi?Bridge?as?an?example,?both?global?and?partial?analysis?on?this?bridge?is?carried?out,?using?3?D?finite?element?method.?The?problem?how?to?avoid?the?cracks?in?the?box?girder?and?excessive?deflection?in?the?middle?of?the?span?is?resolved?through?the?analysis?and?comparison?which?is?worthy?to?apply?into?the?engineering?practice.

Key words: wide box girder , continuous rigid frame , finite element method , forced analysis ;

摘要： 大跨径宽箱连续刚构桥由于自身的力学特点,普遍存在箱梁开裂和跨中下挠过大等不良现象。以南河底特大桥的工程实际,利用空间有限元法对其进行整体及局部分析。通过分析比较,得到如何有效避免宽箱梁开裂和跨中下挠过大,对此类桥型具有普遍意义和工程实用价值。

关键词: 宽箱, 连续刚构, 有限元, 受力分析

CLC Number:

U448.23

HE Chang, LIANG Li-hui. Space?Forced?Analysis?on?Large-Span?Continuous?Rigid?Frame??Bridge?with?Wide?Box?Girder[J]. Journal of Chongqing Jiaotong University(Natural Science), 2009, 28(5): 813-817.

何??畅,梁利辉. 大跨宽箱连续刚构桥空间受力分析[J]. 重庆交通大学学报（自然科学版）, 2009, 28(5): 813-817.

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Space?Forced?Analysis?on?Large-Span?Continuous?Rigid?Frame??Bridge?with?Wide?Box?Girder

大跨宽箱连续刚构桥空间受力分析

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