Experimental Research on the Temperature Change of Subway Station during Construction
QI Feng1, WANG Wei2, ZHANG Ye-tian1
1. Zhejiang Forestry University, Lincan, Zhejiang 311300, China; 2. Shanghai Institute of Architectural Design and Research Co. Ltd., Shanghai 200063, China
Abstract：Research purposes：As the construction period of subway station is long and the construction technology is complicated, it is difficult to collect full temperature values and there is a little test done on the temperature change of subway station. Therefore, it is necessary to do trace test on the temperature of subway station and make the analysis of the temperature so as to provide the data support to the temperature analysis of subway station in theory.
Research conclusions：To the construction section between two induced joints of one subway station in Shanghai, the temporal temperature values of subway station were collected from the test on the different construction phase. From the statistics of the tested temperature, it was concluded that concrete temperature was affected mainly by the temperature rise of hydration and atmospheric temperature in early concrete casting stage. In medium and later concrete casting stages, the temperature change trend of subway station was basically consistent with the atmospheric temperature, and the max. day-temperature drop of the top plate and the place around induced joints was more than that of other parts and the max. Day-temperature difference between outside and inside of top plate and bottom plate was more than that of the inside lining wall. Based on the analysis of the tested data, the proposals on the definition of temperature load and the in-site maintenance were made.
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QI Feng, WANG Wei, ZHANG Ye-tian. Experimental Research on the Temperature Change of Subway Station during Construction. 铁道工程学报, 2010, 27(3): 109-113.
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2010, Vol. 27 
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