现浇楼板对RC框架结构破坏模式影响的有限元分析

Finite Element Simulation for the Effect of Casting Slabs on The Failure Mode of Reinforced Concrete Frame Structures

运用通用有限元程序ANSYS的参数化设计语言功能分别对带楼板的钢筋混凝土框架结构和不带楼板的纯框架结构进行了地震作用下的时程分析,得到了在地震作用的各个阶段,框架结构的裂缝发生和发展情况.通过将两种模型的模拟结果进行对比分析,证明楼板对钢筋混凝土框架的破坏模式会产生影响,带楼板的框架结构更难实现"强柱弱梁".

Finite element models with floors and without floors are established by general structure analysis software ANSYS. According to the nonlinear time-history response, the vibration modes of the RC frame structure were calculated, the development process of frame crack under different acceleration peak was obtained. Two models by a comparative analysis of the simulation results show that slab of reinforced concrete frame will affect the failure mode, frame structure with a floor more difficult to achieve ＂strong-column weak-beam. ＂