高强混凝土剪力墙非线性有限元分析

Nonlinear finite element analysis of high-strength concrete shear walls

为适应高强材料在土木工程结构中的应用发展需要,本文研究高强混凝土剪力墙在不同参数影响下的受力状态、应力分布以及承载力的变化规律,为高强混凝土剪力墙设计提出合理建议。利用有限元分析软件对高强混凝土剪力墙进行模拟分析,并将模拟结果与试验结果进行对比。在确定数值分析结果的正确性后,进行不同轴压比、剪跨比及不同配筋条件下该类构件数值模拟分析,以研究各参数对高强混凝土剪力墙延性的影响。明确各参数对高强混凝土剪力墙受力性能的影响效果,得出高强混凝土剪力墙承载力随各参数变化的规律。

The high-strength concrete shear walls reinforced with high-strength rebars were analyzed by using finite element method （FEM） to simulate a pseudo-static experiment. The parameters of the shear wall for the simulation were axial compression ratio, shear span ratio and reinforcement ratio to develop the stress states, the distribution of the stress and the bearing capacity. FEM software was used to simulate numerically the shear wall and the results of the simulation were compared with experiments of the sear walls with the same parameters. The results of the analysis show that the performance of the high-strength shear wall can be developed by the use of the high - strength reinforcement and FEM can be effectively used to analyze the static responses, distribution of the stresses and cracks, and the bearing capacity of the shear wall.