FEM Analysis on Fire in Box-Girder of the Gaojia Garden Bridge

doi:10.3969/j.issn.1674-0696.2011.06.07

Journal of Chongqing Jiaotong University(Natural Science) ›› 2011, Vol. 30 ›› Issue (6): 1290-1293.DOI: 10.3969/j.issn.1674-0696.2011.06.07

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FEM Analysis on Fire in Box-Girder of the Gaojia Garden Bridge

SHI Ling-li¹，ZHANG Ben-niu² ，WANG Jia-lin² ，ZHANG Xu²

1.Luzhou Highway Bureau，Luzhou 646000，Sichuan，China； 2.School of Civil Engineering＆ Architecture，Chongqing Jiaotong University，Chongqing 400074， China

Received:2011-03-28 Revised:2011-05-11 Online:2011-12-15 Published:2015-01-22

高家花园大桥箱梁内火灾有限元模拟分析

石玲莉¹ ，张奔牛² ，王家林² ，张旭²

1.泸州市公路局，四川泸州646000；2.重庆交通大学土木建筑学院，重庆40007

作者简介:石玲莉(1985—)，女，湖北赤壁人，硕士研究生，主要从事公路桥梁健康监测方面的研究。E-mail：shilingli5723@163.com。
基金资助:
重庆交通大学研究生教育创新基金项目(2010(I)No.6)

Abstract

Abstract: On September 3，2009，the box girder of Gaojia Garden Bridge caught a fire during the maintenance and rein- forcement． Based on the theory and algorithm of Heat Transfer ， the model of Gaojia Garden Bridge box girder with varying section has been established by use of the Finite Element Method and ABAQUS finite element software．The resuits got bv the model are compared with those got in the monitoring．The comparison shows that the calculated deflection values basica1- ly match the measured ones，which has a referential value for the evaluation on bridge structures condittion

Key words: box girder, Gaojia Garden Bridge, fire simulation, ABAQUS, finite element method analysis

摘要： 针对2009年9月3日下午重庆市高家花园大桥右幅桥跨中区段在箱梁内维修加固时发生意外火灾，以温度场数值模拟的基本理论为依据，采用ABAQUS有限元软件对该箱梁进行变截面有限元实体建模，与实际监测数据进行参照性对比，计算所得的挠度值与实测值基本相符，对桥梁结构状况评估具有参考价值。

关键词: 箱梁, 高家花园大桥, 火灾模拟, ABAQUS, 有限元分析

CLC Number:

U448.21⁺3

SHI Ling-li，ZHANG Ben-niu ，WANG Jia-lin ，ZHANG Xu. FEM Analysis on Fire in Box-Girder of the Gaojia Garden Bridge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2011, 30(6): 1290-1293.

石玲莉，张奔牛，王家林，张旭. 高家花园大桥箱梁内火灾有限元模拟分析[J]. 重庆交通大学学报（自然科学版）, 2011, 30(6): 1290-1293.

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FEM Analysis on Fire in Box-Girder of the Gaojia Garden Bridge

高家花园大桥箱梁内火灾有限元模拟分析

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