Stress measuring and monitoring for main tower of Guangzhou Pearl River HuangPu Bridge

Wei-feng Wang; Jian-dong Liang

doi:10.1117/12.839306

25 August 2009 Stress measuring and monitoring for main tower of Guangzhou Pearl River HuangPu Bridge

Wei-feng Wang, Jian-dong Liang

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73754G (2009) https://doi.org/10.1117/12.839306
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Stress measuring and monitoring play an important role in the construction monitor for HuangPu Bridge in Guangzhou Pearl River, and it ensure the construction safe and normal status of finished bridge. The strain of concrete includes not only the elastic strain resulted from the load effect, but also the non-elastic strain resulted from the creep and shrinkage of concrete. The difficulty for separating creep and shrinkage is the determining for the creep coefficient. A partial site test on creep and shrinkage for the concrete is carried out. The parameters of prediction model CEB-FIP1990 are modified, and some expressions for creep and shrinkage, which are suitable for this project, are acquired. Based on the linearity principle of superposition, the concrete's elastic stress is calculated, and the creep and shrinkage can be separated more accurately.

Citation Download Citation

Wei-feng Wang and Jian-dong Liang "Stress measuring and monitoring for main tower of Guangzhou Pearl River HuangPu Bridge", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73754G (25 August 2009); https://doi.org/10.1117/12.839306

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