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海河春意桥工程钢箱梁施工分段应力和变形分析
引用本文:施刚,姜雪,周文静,张福军,张勇.海河春意桥工程钢箱梁施工分段应力和变形分析[J].钢结构,2013,28(2):37-40.
作者姓名:施刚  姜雪  周文静  张福军  张勇
作者单位:1. 土木工程安全与耐久教育部重点实验室,清华大学土木工程系,北京100084
2. 北京交通大学土木建筑工程学院,北京,100044
3. 中铁建钢结构有限公司,河北涿州,072750
摘    要:针对天津海河春意桥施工过程中钢箱梁吊装及安装问题,运用大型有限元软件ANSYS分别对钢箱梁四的节段一(上、下)和节段三(上、下)进行有限元计算,选用壳单元Shell181进行模拟分析,计算依据为JTJ025-86《公路桥涵钢结构及木结构设计规范》。计算结果表明:钢箱梁在吊装、安装过程中,强度和刚度均满足要求,亦不会发生板件局部失稳和应力集中问题,钢箱梁构件安全。

关 键 词:钢结构  钢箱梁  ANSYS  有限元分析  应力  变形

ANALYSIS OF THE STRESS AND DEFORMATION OF STEEL BOX GIRDER OF CHUNYI BRIDGE ACROSS HAIHE RIVER DURING THE CONSTRUCTION
Shi Gang , Jiang Xue , Zhou Wenjing , Zhang Fujun , Zhang Yong.ANALYSIS OF THE STRESS AND DEFORMATION OF STEEL BOX GIRDER OF CHUNYI BRIDGE ACROSS HAIHE RIVER DURING THE CONSTRUCTION[J].Steel Construction,2013,28(2):37-40.
Authors:Shi Gang  Jiang Xue  Zhou Wenjing  Zhang Fujun  Zhang Yong
Affiliation:1.Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; 3. China Railway 18th Bureau (Group)Metal Structure Engineering Co.Ltd, Zhuozhou 072750, China)
Abstract:For hoisting and installation problems of steel box girders in construction process of Chunyi Bridge across Haihe River in Tianjin, finite element calculation was carried out respectively for section one and section three of the fourth steel box girder. In this paper, the finite element software ANSYS was used for calculation, and shell element Shell 181 was chosen as the unit type for simulation and analysis. The check computation was based on the specification JTJ 025-86, and the calculation results show that in the hoisting and installation process of steel box girders, strength and stiffness can satisfy the requirement, moreover local buckling of webs or stress concentration problems won’t happen, component security of the steel box girders is guaranteed.
Keywords:steel structure  steel box girder  ANSYS  finite element analysis  stress  deformation
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