钢筋混凝土板抗冲切的有限元计算研究

Finite Element Analysis on Punching Shear Resistance of Reinforced Concrete Slabs

采用有限元非线性分析模拟钢筋混凝土板的冲切破坏,可以提供大量板抗冲切的反应信息,有助于研究钢筋混凝土板抗冲切破坏。本文在所选文献试验数据的基础上,通过合理采用试件材料性能参数、边界条件、几何参数等进行钢筋混凝土板抗冲切的有限元非线性分析,计算结果与试验结果吻合较好。为了求得更好的计算精度,还进行选择分离式计算模型、调整材料性能参数以及加载方式等计算手段,通过计算比较,取得较为满意的计算结果。本文可以为钢筋混凝土板抗冲切有限元的模拟计算提供依据与借鉴。

Finite element nonlinear analysis is adopted to simulate punching shear failure of RC slab, it is helpful to provide a lot of feedback information of punching shear failure and to research punching mechanism, Based on referred test data, punching shear failure of RC slabs are simulated by adopting correlative material data boundary condition, geometry data, and so on,and the calculated results are in good agreement with the test results. To acquire more satisfactory calculated results, different analysis models, material data and loading styles are studied in this paper. This paper is available for reference in analysis of the punching shear resistance of RC slabs by using finite element nonlinear method.