摘要
温度应力是超长混凝土结构面临的挑战,本文针对上海铁路南站下部混凝土结构的温度应力问题进行了探讨,通过自编Fortran程序实现了考虑截面配筋及开裂的影响,并与ANSYS的有机结合。分析结果表明,在温度荷载作用下,环形结构的内圈环梁受力较为复杂;楼板温度荷载对结构温度应力有十分重要的影响,设计中楼板承受的温度荷载应给予充分的考虑。
Temperature stress is a challenge for ultralong concrete structures.The temperature stress in the concrete substructure of Shanghai railway station was studied by a FORTRAN program,which took the effects of reinforcing and cracking into consideration and could be combined with ANSYS tightly.The results indicated that the behavior of inner ring girders was more complex than outer ones under temperature load.The effect of temperature loads in the slab on temperature stress in structures is great.The enough attention should be paid to the temperature loads in the slab in design.
出处
《建筑结构》
CSCD
北大核心
2009年第S1期500-502,共3页
Building Structure
关键词
超长结构
温度应力
ultralong structure
temperature stress
