基于ANSYS软件的混凝土薄壁箱梁日照温度场有限元分析  

Finite Element Analysis of Sunshine Temperature Field of Concrete Thin-walled Box Girder Based on ANSYS Software

作　　者：谢鹏 宋志仕 

机构地区：[1]湖南省汝郴高速公路建设开发有限公司,湖南长沙410016 [2]长沙理工大学土木与建筑工程学院,湖南长沙410114

出　　处：《公路工程》2017年第2期85-90,共6页Highway Engineering

摘　　要：混凝土薄壁箱梁的日照温度场在很大程度上决定了预应力混凝土斜拉桥的温度效应,日照温度场受太阳辐射、地理位置、风向等诸多环境因素的影响,变化极其复杂。以厦蓉高速赤石特大桥为工程背景,针对主梁薄壁混凝土箱型截面,采用有限元方法,利用气象资料对日照温度场进行了仿真计算分析,并利用实测温度场对仿真分析中的参数取值进行校准,验证了有限元仿真计算分析方法的正确性;运用验证后的有限元模型,预测了不同时刻的混凝土薄壁箱梁截面温度场,对混凝土薄壁箱梁截面日照温度场的变化规律进行了总结,为同类型桥梁工程温度场的仿真计算提供了参考。The temperature field of concrete thin walled box girder determines the temperature effect of prestressed concrete cable-stayed bridge to a great extent. The sunshine temperature field is Extremely complex affected by many environmental factors, such as solar radiation, geographical location, wind direction, and so on. In this paper, the Xiamen Chengdu Expressway ChiShi Bridge as the engi- neering background, the thin-walled concrete box girder section, using the finite element method, the temperature field was simulated by using meteorological data analysis, and the measured temperature field is used to calibrate the parameters in the simulation analysis, the correctness of the finite element simula- tion analysis method is verified. Then, the finite element model is used to predict the temperature field of concrete thin-walled box girder at different time, and the variation law of sunshine temperature field of concrete thin-walled box girder section is summarized, which provides reference for the simulation of temperature field of the same kind of bridge engineering.

关 键 词：桥梁工程 薄壁箱梁 日照温度场 ANSYS软件 仿真计算分析 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]