Loading?Capacity?of?Composite?Box?Girder?Intersection?with?Special-Shaped?Steel?and??Concrete?in?Negative?Bending?Region

doi:10.3969/j.issn.1674-0696.2009.05.03

Journal of Chongqing Jiaotong University(Natural Science) ›› 2009, Vol. 28 ›› Issue (5): 822-825.DOI: 10.3969/j.issn.1674-0696.2009.05.03

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Loading?Capacity?of?Composite?Box?Girder?Intersection?with?Special-Shaped?Steel?and??Concrete?in?Negative?Bending?Region

WANG Bao-qiang¹, LIYun-sheng², WANG Yuan-qing³

1.?The?5th?Engineering?Co.?Ltd?of?MBEC?,Jiangxi?Jiujiang?332000,?China;?2.?School?of?Civil?Engineering,?Shijiazhuang?Railway?Institute,?Hebei?Shijiazhuang?050043,?China;?3.?Department?of?Civil?Engineering,?Tsinghua?University,?Beijing?100084,?China

Received:2009-05-10 Revised:2009-06-18 Online:2009-10-15 Published:2015-04-15

负弯矩区异型钢-混凝土组合岔梁受力性能分析

王宝强¹,李运生²,王元清³

1.中铁大桥局集团第五工程有限公司,江西九江332000;2.石家庄铁道学院土木工程分院,河北石家庄050043; 3.清华大学土木工程系,北京100084

作者简介:王宝强(1982—),男,河北张家口人,助理工程师,硕士,主要从事施工临时结构设计。E-mail:wbqpyr@163.com。
基金资助:
河北省自然基金项目( E2009000893)

Abstract

Abstract: The?curved?beam?and?the?special-shaped?girder?have?been?widely?used?in?the?urban?and?highway?intersection?recently,?and?are?also?inclined?to?the?continuous?special-shaped?structure.?The?continuous?special-shaped?structure?is?complex,?and?the?studies?on?its?loading?and?deformation?characteristics?under?different?loads?are?of?great?significance?for?the?engineering?construction.?One?segment?of?composite?box?beam＇s?special-shaped?intersection?of?Beijing?South?Station?Viaduct?in?negative?bending?region?is?analyzed?by?FEM?software?ANSYS.?The?behavior?of?the?steel?box-concrete?composite?girder?at?intersection?is?mainly?analyzed,?such?as?the?stress?and?deformation?behavior?of?the?composite?girder?under?different?loads.?And?the?measures?to?reduce?the?stress?concentration?are?given,?which?offers?references?to?the?design?of?similar?structures

Key words: negative bending region , special-shaped intersection , stress analysis , deformation analysis

摘要： 目前,曲线梁和异型梁在城市立交和高速公路立交中被广泛采用,且向连续梁发展。连续异型梁桥结构复杂,研究其在各种荷载作用下的受力和变形特征对工程建设具有重要意义。在此通过有限元程序ANSYS建立板壳单元三维空间模型,对北京南站高架桥某联负弯矩区异型岔梁进行分析,重点分析了该异型岔梁在各种荷载作用下的变形和应力分布,提出了降低岔口处截面应力集中的措施,可为同类结构设计提供借鉴和参考。

关键词: 负弯矩区, 异型岔口, 应力分析, 变形分析

CLC Number:

U448.2

WANG Bao-qiang, LIYun-sheng, WANG Yuan-qing. Loading?Capacity?of?Composite?Box?Girder?Intersection?with?Special-Shaped?Steel?and??Concrete?in?Negative?Bending?Region[J]. Journal of Chongqing Jiaotong University(Natural Science), 2009, 28(5): 822-825.

王宝强,李运生,王元清. 负弯矩区异型钢-混凝土组合岔梁受力性能分析[J]. 重庆交通大学学报（自然科学版）, 2009, 28(5): 822-825.

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Loading?Capacity?of?Composite?Box?Girder?Intersection?with?Special-Shaped?Steel?and??Concrete?in?Negative?Bending?Region

负弯矩区异型钢-混凝土组合岔梁受力性能分析

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