刚构-连续箱形梁特大桥的混凝土箱形截面温度场有限元分析  

Finite Element Analysis of Concrete Box Sectional Temperature Field of Frame Bridge-Continuous Box Girder

作　　者：雷江 LEI Jiang(Chongqing Institute of Engineering,School of Civil Engineering and Architecture,Chongqing,400056,China)

机构地区：[1]重庆工程学院土木工程与建筑学院,重庆400056

出　　处：《公路工程》2018年第2期187-191,245,共6页Highway Engineering

基　　金：重庆市社会科学规划博士和培育项目(2014PY51)

摘　　要：依托湖南省衡东县某实际项目,利用有限元对刚构-连续箱形梁特大桥的混凝土箱形截面温度场进行了研究。基于温度传感器对典型断面的温度场进行实测,得到了箱梁温度场的变化规律,同时为有限元分析提供准确的基础资料。基于ANSYS有限元软件,建立了箱梁温度场模型,对温度场进行了数值模拟,并通过对比现场实测结果与数值分析结果,验证了模型的准确性和可靠性。通过对有限元软件计算得出温度场云图进行分析,总结了刚构-连续箱形梁特大桥的混凝土箱形截面温度场的变化规律,在刚构-连续箱形梁特大桥研究领域内具有较高的借鉴意义和参考价值。Based on a practical project in Hengdon,Hunan Province,this paper studied the temperature field of concrete box section of rigid frame-continuous box girder bridge by using finite element method.The temperature field of a typical section was measured based on the temperature sensor,the variation law of the temperature field of the box girder was concluded,and the accurate basic data were provided for the finite element analysis.Based on the finite element software ANSYS,the temperature field model of the box girder was established and the temperature field was numerically simulated.The accuracy and reliability of the model were verified by comparing the measured results with the numerical results.Through the analysis of the temperature field cloud chart calculated by the finite element software and the variation law of the temperature field of concrete box section of the rigid-continuous box girder bridge,the variation law of the temperature field of the concrete box section bridge is summarized.In the research field of the rigid-continuous box girder bridge,Higher referential significance and reference value.

关 键 词：箱形梁桥 箱形截面 温度场 有限元 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]