Structural temperature and stress analysis of PC continuous rigid-frame bridge in northern high-cold area

摘要：

　　In order to study the temperature and stress distribution of the continuous rigid frame bridge in the northern high-cold area china,the ambient temperature,structure temperature and stress data are analysed using the fitting and statistical mathematical methods.Firstly,the environmental temperature variation function can obtain through Fourier series fitting.Then using the statistical methods to analyse the longitudinal、lateral、vertical temperature difference of the box girder and the temperature difference between pier and the beam.Finally,proposing one of the concrete strain data processing method,which can separate seasonal temperature strain,sunshine temperature strain and train load strain.The effectiveness and rationality of the proposed method verified by comparing with FBG grating strain gauge data.

关键词： Concrete box girder temperature temperature strain bridge health monitoring

作者: Cheng Li Ji-wei Zhong Ya-fei Wang

作者单位: China Railway Bridge Science Research Institute Co.,Ltd.,Wuhan,China;State Key Laboratory of Bridge Structure Health and Safety,Wuhan,China

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 323-332

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）