[1]卫俊岭,王浩,茅建校,等.混凝土连续箱梁桥温度场数值模拟及实测验证[J].东南大学学报(自然科学版),2021,51(3):378-383.[doi:10.3969/j.issn.1001-0505.2021.03.003] 　Wei Junling,Wang Hao,Mao Jianxiao,et al.Numerical simulation and test verification for temperature field of concrete continuous box girder bridges[J].Journal of Southeast University (Natural Science Edition),2021,51(3):378-383.[doi:10.3969/j.issn.1001-0505.2021.03.003] 点击复制 混凝土连续箱梁桥温度场数值模拟及实测验证() 分享到： var jiathis_config = { data_track_clickback: true };

51

2021年第3期

378-383

2021-05-20

文章信息/Info

Title:
Numerical simulation and test verification for temperature field of concrete continuous box girder bridges

1东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 211189; 2中铁二十四局集团江苏工程有限公司, 南京 210038
Author(s):
1Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 211189, China
2Jangsu Engineer Co., Ltd., China Railway 24th Bureau Group, Nanjing 210038, China

Keywords:

U441.5
DOI:
10.3969/j.issn.1001-0505.2021.03.003

Abstract:
To investigate the temperature field distribution of concrete continuous box girder bridges, according to the heat transfer theory of concrete structures, a large span continuous box girder bridge was taken as an example to establish a two-dimensional transient solar temperature field model of a concrete box girder birder using ANSYS by combining the local meteorological parameters with the solar radiation semi-empirical formulas. The temperature fields of the concrete box girder bridge on cloudless and cloudy weather were simulated. The simulation results were compared with those of the field temperature measurement. Moreover, the distribution characteristics of the maximum vertical temperature gradient of the concrete box girder bridge were simulated and the corresponding temperature effects on the bridge were analyzed. The results show that the simulated temperature field of the concrete box girder bridge agrees well with that of the temperature measurement. Compared with the vertical temperature gradient model of the concrete box girder in the code, the fitted vertical temperature gradient has lower effect on the stress of the concrete box girder bridge.

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