1. China Railway Major Bridge and Tunnel Inspect & Retrofit Company, Nanjing Jiangsu 210061, China;
2. School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha Hunan 410004, China
Analysis of the Temperature Field of a PK Section Concrete Girder without Pavement Caused by Solar Radiation
XIE Wen-chang1, ZHANG Yu-ping2, LI Chuan-xi1
1. China Railway Major Bridge and Tunnel Inspect & Retrofit Company, Nanjing Jiangsu 210061, China;
2. School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha Hunan 410004, China
摘要To address the lack of a solar thermal gradient in a PK section concrete girder without pavement in highway bridge regulation and the limited research on this topic both local and abroad, an ANSYS model for the right branch cable-stayed bridge concrete girder without pavement of the Maanshan Yangtze River Expressway is built to calculate the temperature field. Results agree well with the measured values. The parameter analysis of the concrete girder without pavement shows that absorptivity significantly influences the maximum vertical temperature difference of the girder, and wind speed is another important factor. A vertical maximum gradient temperature model under the worst environment and its exponential function in the course of bridge construction are calculated. The distribution trend of the gradient temperature obtained from our research basically tallies with those from existing specifications of different countries. The values of the gradient temperature differ because of the effect of geography. Therefore, improving the specification for the gradient temperature of concrete girders without pavement in Chinese highway bridge regulations is suggested.
Abstract：To address the lack of a solar thermal gradient in a PK section concrete girder without pavement in highway bridge regulation and the limited research on this topic both local and abroad, an ANSYS model for the right branch cable-stayed bridge concrete girder without pavement of the Maanshan Yangtze River Expressway is built to calculate the temperature field. Results agree well with the measured values. The parameter analysis of the concrete girder without pavement shows that absorptivity significantly influences the maximum vertical temperature difference of the girder, and wind speed is another important factor. A vertical maximum gradient temperature model under the worst environment and its exponential function in the course of bridge construction are calculated. The distribution trend of the gradient temperature obtained from our research basically tallies with those from existing specifications of different countries. The values of the gradient temperature differ because of the effect of geography. Therefore, improving the specification for the gradient temperature of concrete girders without pavement in Chinese highway bridge regulations is suggested.
基金资助:Supported by the National Key Research and Development Program of China (973 Program) (No. 2015CB057702); the National Natural Science Foundation of China (No. 51378080);and the Key Discipline of Civil Engineering Advantage Features Innovative Program of Changsha University of Science and Technology (No. 15ZDXK02)
谢文昌, 张玉平, 李传习. 无铺装层PK断面混凝土梁日照温度场分析[J]. Journal of Highway and Transportation Research and Development, 2016, 10(3): 34-40.
XIE Wen-chang, ZHANG Yu-ping, LI Chuan-xi. Analysis of the Temperature Field of a PK Section Concrete Girder without Pavement Caused by Solar Radiation. Journal of Highway and Transportation Research and Development, 2016, 10(3): 34-40.
[1] LIU Xing-fa. Analysis of Thermal Stress for Concrete Structure[M]. Beijing:China Communications Press, 1991:1-4. (in Chinese)
[2] JTG D60-2004, General Code for Design of Higway Bridges and Culverts[S]. (in Chinese)
[3] FANG Zhi, WANG Jian. Sun Light Therma Difference Effect on Long-span PC Continuous Box Girder Bridge[J]. China Journal of Highway and Transport, 2007, 20(1):62-67. (in Chinese)
[4] NIE Yu-dong. Analysis of Temperature Field and Temperature Effect for Long Span Concrete Box Girder Bridges in Cold Regions[D]. Harbin:Harbin Institute of Technology, 2013. (in Chinese)
[5] WANG Jian, FANG Zhi. Temperature Variation of Concrete Box Girder Bridge[J]. Journal of Hunan University:Natural Science Eiditon, 2008, 35(4):23-28. (in Chinese)
[6] WU Liu-zheng. Simulation of Temperature Field of Concrete Box-girder Bridge[J]. Journal of Highway and Transportation Research and Development,2011, 28(10):65-69. (in Chinese)
[7] ROBERTS-WOLLMAN C L, BREEN J E, CAWRSE J. Measurements of Thermal Gradients and Their Effects on Segmental Concrete Bridge[J]. Journal of Bridge Engineering, 2002, 8(3):166-174.
[8] MONDAL P, DEWOLF J T. Development of Computer-based System for the Temperature Monitoring of a Post Tensioned Segmental Concrete Box Girder Bridge[J]. Computer-Aided Civil and Infrastructure Engineering, 2007, 22(1):65-77.
[9] YAN P. Research on Temperature Field and Temperature Stress of Large Span Concrete Cable-Stayed Bridge Girder[C]//Applied Mechanics and Materials. Yantai:[s.n.],2012, 2073-2080.
[10] LEE J H, KALKAN L. Analysis of Thermal Environmental Effects on Precast, Prestressed Concrete Bridge Girders:Temperature Differentials and Thermal Deformations[J]. Advances in Structural Engineering, 2012,15(3):447-460.
[11] LARSSON O, THELANDERSSON S. Estimating Extreme Values of Thermal Gradients in Concrete Structures[J]. Materials and Structures, 2011, 44(8):1491-1500.
[12] SOUKHOV D. Representative Values of Thermal Actions For Concrete Bridge[J]. Progress in Structural Engineering and Materials, 2000, 2(4):495-501.
[13] XIAO Jian-zhuang, SONG Zhi-wen, ZHAO Yong, et al. Analysis of Solar Temperature Action for Concrete Structure Based on Meteorological Parameters[J]. China Civil Engineering Journal, 2010, 43(4):30-36. (in Chinese)
[14] GU Bin, CHEN Zhi-jian, CHEN Xin-di. Simulation Analysis for Solar Temperature Field of Concrete Box Girder Based on Meteorological Parameters[J]. Journal of Southeast University:Natural Science Edition, 2012, 42(5):950-955. (in Chinese)
[15] YE Jian-shu, JIA Lin, QIAN Pei-shu. Observation and Research on Temperature Distribution in Concrete Box Girders[J]. Journal of Southeast University:Natural Science Edition,2002, 32(5):788-793. (in Chinese)
[16] PENG You-song. Studies on Theory of Solar Radiation Thermal Effects on Concrete Bridges with Application[D]. Chengdu:Southwest Jiaotong University, 2007. (in Chinese)
[17] ANSYS Inc. ANSYS Thermal Analysis Guide[M].Beijing:Beijing Office United States, 2000. (in Chinese)
[18] ZHANG Jian-rong, XU Xiang-dong, LIU Wen-yan. A Test Study on Solar Radiation Absorption Coefficient of Concrete Surface[J]. Building Science,2006, 22(1):42-45. (in Chinese)
[19] LIU Zhao-qiu. Research for Convection Heat Transfer on the Surface of Concrete Structure[D]. Shanghai:Tongji University, 2006. (in Chinese)
[20] ZHANG Yu-ping, YANG Ning, LI Chuan-xi. Research of Temperature Field of Steel Box Girder Without Pavement Caused by the Solar Radiations[J]. Engineering Mechanics, 2011, 28(6):156-162. (in Chinese)
[1]
常柱刚, 王林凯, 夏飞龙. 基于CV NewMark-b法桥梁风致振动FSI数值模拟[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 28-37.
2016, Vol. 10 
