Temperature variation of concrete-steel deck plate under solar radiation
The analysis of time-varying temperature field of a composite concrete-steel deck plate under strong solar radiation is carried out in this study.By assuming the temperature distribution along the bridge longitudinal direction is basically constant,one typical segment of the deck plate is investigated.Two-dimensional heat transfer models are utilized to determine the time-dependent temperature distribution of deck plate,deck trough and deck pavement of the bridge.A modified solar radiation model is utilized to predict the variation of solar radiation in a whole day.A thermodynamic model is established and a transient heat transfer analysis is conducted to predict the time-varying temperature distribution of the deck plate at different time.The measured ambient temperature data are used as thermal boundary conditions during the numerical analysis.The made observations demonstrate that the simulated temperature variation of the deck plate based on the modified solar radiation model agrees well with measurement results,as compared with those obtained from the traditional solar radiation model..
Bridge deck plate temperature distribution field monitoring heat transfer analysis
Bo Chen Jin Zheng Jianping Wang
Key Laboratory of Roadway Bridge and Structural Engineering, Wuhan University of Technology,Wuhan, C Design Institute of Wuhan University of Technology, Wuhan, China Guizhou University for Nationalities, Guiyang, China
国际会议
重庆
英文
158-162
2010-12-11（万方平台首次上网日期，不代表论文的发表时间）