筒仓基础大体积混凝土温度场及温度应力仿真研究

摘要

According to the characteristics of mass concrete on silo′s foundation,temperature field and thermal stress is analyzed through the finite element software in this paper.The finite element calculation model in mass concrete of silo′s foundation is established based on ANSYS.In this model,meshing method and the problem of concrete elastic modulus variation with time are considered.Through the comparative analysis with engineering examples,it is proved that the model have a good effect in simulating analysis.%论文根据筒仓基础大体积混凝土的特点,运用有限元软件对其温度场及温度应力进行仿真分析,建立了基于ANSYS的筒仓基础大体积混凝土有限元计算模型.该模型针对网格划分方法及混凝土弹性模量随龄期变化等问题进行了技术上的改进.通过与工程实例的对比分析,证明该模型模拟效果良好.