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为了进一步改善半刚接钢框架内填钢筋混凝土剪力墙结构(PSRCW)的抗震性能,将暗竖缝引入PSRCW结构的内填墙中,进行了1榀1∶3缩尺内填墙带暗竖缝PSRCW结构的低周反复荷载试验,研究了带暗竖缝PSRCW结构的破坏机理及滞回性能。试验结果表明:内填墙设置暗竖缝对PSRCW结构的初期刚度影响较小,峰值荷载过后承载力退化缓慢,结构延始性能得到显著改善。带暗竖缝的PSRCW结构通过合理设计可以实现控制结构小震或中震作用下的变形,提供较大的初始抗侧刚度,大震下提供良好的变形能力和耗散地震能量的双重功能。
In order to further improve the seismic performance of reinforced concrete shear wall structure (PSRCW) filled with semi-rigid-spliced steel frame, dark vertical slits were introduced into the internal wall of PSRCW structure, The low-cycle cyclic loading test of PSRCW with vertical joints, the failure mechanism and hysteretic behavior of PSRCW with dark vertical joints are studied. The experimental results show that the influence of the dark vertical seam on the initial wall stiffness of the PSRCW structure is small, and the bearing capacity of the PSRCW structure degenerates slowly after the peak load. The structural behavior of the PSRCW structure is significantly improved. The PSRCW structure with dark vertical joints can be designed to control the deformation under the action of small or medium earthquakes and to provide a large initial stiffness. The PSRCW structure provides dual functions of good deformation ability and energy dissipation under large earthquake.