波形钢板-混凝土组合剪力墙抗震性能试验研究

为研究波形钢板-混凝土组合剪力墙的抗震性能，完成了竖向波形钢板-混凝土组合剪力墙、水平波形钢板-混凝土组合剪力墙以及平钢板-混凝土组合剪力墙拟静力试验，研究了波形钢板-混凝土组合剪力墙在低周往复荷载作用下的变形能力和破坏模式，分析了荷载-位移滞回曲线、骨架曲线、各阶段特征荷载和位移值等，以及结构的破坏特征、变形和耗能能力、刚度和承载力退化。试验结果表明：波形钢板-混凝土组合剪力墙具有较大的抗侧刚度、较好的延性和耗能能力；与平钢板-混凝土组合剪力墙相比，波形钢板-混凝土组合剪力墙有较好的界面黏结性能，而平钢板-混凝土剪力墙由钢板变形引起的混凝土剥落严重；波形钢板-混凝土组合剪力墙的初始刚度较平钢板-混凝土组合剪力墙的高，竖向波形钢板-混凝土组合剪力墙的承载力和极限位移较水平波形钢板-混凝土组合剪力墙的高，波形钢板-混凝土组合剪力墙的承载力退化和刚度退化比平钢板-混凝土组合剪力墙的慢，表现出较好的受力性能。采用ABAQUS有限元软件可以较好地模拟试验，有限元分析结果表明，波形钢板的应力分布比较均匀，组合作用效应明显，适合在抗震结构中采用。

Experimental research on seismic behavior of corrugated steel plate-concrete composite shear walls

In order to study the seismic behavior of corrugated steel plate-concrete composite shear walls, three specimens, one with vertical corrugated steel plates, one with horizontal corrugated steel plates, and the remaining one with flat steel plates, were tested. The deformation response and failure modes were observed under low cyclic lateral loads. Key seismic performances such as the load-displacement hysteresis curves, skeleton curves, and loads and displacements at different loading stages were obtained. The failure characteristic, ductility, energy dissipation capacity, stiffness, and load bearing capacity degradation response were studied. The experimental results indicate that the corrugated steel plate-concrete composite shear walls have satisfactory lateral stiffness, ductility and energy dissipation capacity. Compared with the specimen with flat steel plates, the corrugated ones have good bonding behavior. The concrete of the flat steel plate-concrete shear wall experiences serious spalling due to the deformation of the steel plate. The initial stiffness of the corrugated steel plate-concrete composite shear wall is higher than the flat steel plate concrete composite shear wall, and the bearing capacity and the ultimate displacement of the vertical corrugated steel plate-concrete composite shear wall are higher than the horizontal corrugated ones. Compared with the specimen with flat steel plates, the bearing capacity degradation and stiffness degradation of the corrugated ones are less significant. ABAQUS models are built which are shown to agree well with the test results. The results of finite element analysis show that the stress distribution of the corrugated steel plate is relatively uniform and the composition effect is obvious, which is suitable to be used in seismic structures.