【作者】 姚激；

【导师】 樊江；

【作者基本信息】 昆明理工大学 ， 结构工程， 2002， 硕士

【摘要】 随着混凝土材料在建筑中的广泛应用，也给建筑结构带来了许多新的问题，温度裂缝便是其中之一。 本文从混凝土结构的物理性能和热传导的基本概念出发，讨论了混凝土结构产生温度应力的原因，应用有限元理论，建立混凝土结构温度应力的计算模型，提出了混凝土结构开裂的判剧，并用VC和Fortran语言，编制了混凝土温度裂缝仿真程序，分析了混凝土梁在考虑温差荷载作用下的应力情况。 本文还应用Ansys软件对混凝土梁的裂缝进行了仿真模拟，对Ansys软件应用到混凝土结构裂缝分析做出了有益的探讨。 最后，本文根据计算的结果，提出了减少混凝土结构温度应力，控制混凝土结构温度裂缝的措施，并给出了本课题需要深入研究的几个方向。更多还原

【Abstract】 With the use of concrete, many new problems in concrete structures are gotten up. The temperature crack is one of these new problems.On the basis of the primary concepts of thermal conduction and thermal physical property of concrete material, the causes resulting in temperature stress of the concrete structures are analyzed, a compute model for the temperature stress of concrete structures is set up by using the finite element theory, the principles to check of the structure are also given up. Employing VC computer code and Fortran computer code, a programmer on simulating concrete temperature crack is compiled, then a concrete beam with the temperature load is analyzed.ANSYS software is applied to simulate the crack of concrete beam in this paper, some helpful approach on applying ANSYS software in simulating the crack of concrete structures are given.Finally, a conclusion and summary is made in the thesis and some effective measures to reduce the temperature stress and control temperature crack are proposed. And also some suggestions on the research are proposed.更多还原