波形钢板剪力墙抗震性能试验研究

为研究波形钢板剪力墙在水平荷载作用下的抗侧力性能，完成了水平波形和竖向波形的钢板剪力墙模型的低周往复加载试验，并采用ABAQUS有限元软件对波形钢板剪力墙模型进行了模拟分析。试验结果表明：波形钢板剪力墙结构具有较高的侧向承载力、较强的抗剪屈曲能力和稳定的滞回性能；竖向波形钢板剪力墙在加载过程中发生了沿墙体对角线的X形剪切破坏；水平波形钢板剪力墙在加载过程中未出现波形钢板的屈曲破坏。因此，水平波形钢板剪力墙的极限荷载比竖向波形钢板剪力墙的更高、延性更好、滞回曲线更加饱满。在水平受剪时，竖向波形钢板剪力墙易产生拉压效应，水平波形钢板剪力墙易发生H型钢柱屈曲。波形钢板与边缘约束H型钢柱之间的焊缝未出现开裂，焊缝连接保证结构的整体性能。对比有限元分析结果与试验得到的数据，水平波形钢板剪力墙的荷载、位移比竖向波形钢板剪力墙的更接近试验值。采用有限元法对不同波角和钢板厚度的水平波形钢板剪力墙的抗侧性能进行了分析，结果表明：当钢板比较薄的时候，容易发生波形钢板的剪切破坏；当钢板较厚的时候，容易发生边缘约束H型钢柱的过早屈曲，对结构的承载力和延性不利；当波形钢板的波角为45°时，波形钢板剪力墙的承载力以及延性性能最佳。波角过大或过小时，剪力墙承载力均有所降低。因此，水平波形钢板剪力墙宜采用45°波角与厚度适中的钢板。

Experimental research on seismic behavior of corrugated steel plate shear wall

In order to study the lateral resisting behavior of corrugated steel plate shear wall under horizontal force, two model specimens of horizontal and vertical corrugated steel plate shear walls were tested respectively under low-cycle reversed loading. The corrugated steel plate shear wall models were simulated and analyzed by ABAQUS finite element software. The test results show that the corrugated steel plate shear wall has high loading capacity, strong anti-shear buckling capacity and full hysteretic loops and stable energy dissipation. The X-type shear failure along diagonal of wall occurs during the loading process of the vertical corrugated steel shear wall. However, in the process of loading, the buckling failure of the horizontal corrugated steel plate shear wall does not occur. Therefore, compared with vertical corrugated steel plate shear wall, the ultimate bearing capacity of the horizontal corrugated steel plate shear wall is higher, the ductility is bigger, and the hysteresis curve is better.Under the action of horizontal force, the vertical corrugated steel plate shear wall is prone to pull and pressure effect, and the horizontal corrugated steel plate shear wall is prone to H-type steel column buckling. There is no crack in the fillet welding between the corrugated steel plate and the boundary H shaped column, which indicates that the overall performance of the structure can be guaranteed by the connection of the fillet welding. By comparing the results of the finite element analysis with the experimental data, the simulated loading and deformation values of horizontal corrugated steel plate shear wall agree with the experimental results better than vertical corrugated steel plate shear wall. The lateral performance of the horizontal corrugated steel plate shear wall with different wave angles and steel plate thicknesses were analyzed by the finite element method. The results show that when the thickness of the steel plate is small, the horizontal corrugated steel plate shear wall exhibits shear failure easily. When the steel plate is relatively thick, constraint boundary H shaped columns are prone to buckling prematurely, which is detrimental to the bearing capacity and ductility of the structure. When the corrugated steel plate wave angle is 45°, the loading capacity and the ductility performance of the corrugated steel plate shear walls are the best. If the wave angle is too large or too small, the corresponding loading capacity of shear wall is decreased respectively. Therefore, the horizontal corrugated steel plate shear wall should adopt the steel plate with 45° wave angle and moderate steel plate thickness.