Thermal Stress Analysis of a Continuous Rigid Frame Bridge

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Submitted: March 1, 2017
Published: Mar 24, 2017
DOI: 10.29328/journal.acee.1001002

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Shiwei Ge
Henan Provincial Communications Planning & Design Institute Co., Ltd, Henan Zhengzhou, China
Yafei Xu
Henan traffic institute of science and technology co., Ltd, Henan Zhengzhou, China
Xiao Zhou
School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China
Shangyu Peng
Chongqing Audit Bureau, China

Abstract

Thermal stress of a continuous rigid frame bridge, based on the temperature gradient in Chinese bridge gauge, using a finite element analysis (FEA) method was investigated. First of all, the temperature effect of the whole bridge was analyzed, and the correlation of the improved amplitude of temperature gradient and temperature effect were studied. It was found that there was a linear relationship with temperature stress and improved temperature. And then, the temperature effect of zero block was analyzed and the details of box girder temperature stress distribution investigated by utilizing the FEA method. It was concluded that temperature stress mainly distributed in the body surface; under the condition of the improvement of temperature field, the center temperature stress of zero block was improved about 60% and the end temperature stress of zero block was improved about 75%.

Article Details

Ge, S., Xu, Y., Zhou, X., & Peng, S. (2017). Thermal Stress Analysis of a Continuous Rigid Frame Bridge. Annals of Civil and Environmental Engineering, 1(1), 009–019. https://doi.org/10.29328/journal.acee.1001002
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Copyright (c) 2017 Ge S, et al.

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