广州新光大桥大体积高性能混凝土温度场仿真分析

Simulation Analysis of Temperature Fields of Massive High Performance Concrete for Xinguang Bridge in Guangzhou

采用三维瞬态温度场理论,建立大体积高性能混凝土温度场有限元计算模型,考虑施工工艺的影响,对广州新光大桥主墩承台进行温度场仿真分析,研究了温度场在承台内部分布和随时间变化规律,并与实测结果进行比较,结果表明理论分析方法是可信的。

With theory of three-dimensional transient temperature fields, a finite element model for calculating temperature fields of massive high performance concrete is created, and also in consideration of effect of applied construction technology, the temperature fields of main pier pile caps of Xinguang Bridge in Guangzhou are simulatedly analyzed, the laws of distribution and time-dependent variations of the fields inside the pile caps are investigated, and the analysis and investigation are then compared to the measurements. The results demonstrate that the theoretic analysis method herewith is credible.