两类转换梁式框支短肢剪力墙结构性能研究

通过施加竖向荷载和水平低周反复荷载作用下的拟静力试验,获得了斜柱式和加腋梁式这两类转换梁式框支短肢剪力墙结构模型试件转换节点的开裂前后的应力状态,裂缝的产生、发展,以及试件最后的破坏形态等基本数据,并着重研究了加斜柱和加腋的转换梁对整个转换节点的影响。试验结果表明,相比于加腋式试件,斜柱式试件的初始刚度和极限刚度更高,滞回曲线更为丰满,滞回耗能也有所提高。

Seismic behavior of frame-supported short-leg shearwall structure with haunched and inclined transfer beam

According to the experiments on short-leg shearwall transfer beam specimens subject to vertical load and horizontal cyclic load have been carried out, mechanical behaviors of the joints are investigated. The stress states before and after cracking, the occurrence and development of cracks and the failure modes were obtained. The test research the influence of haunched and inclined beam on the carrying capacity of transfer joint. The results show that the initial slope column specimen stiffness and ultimate stiffness are both greater than the haunched type specimen, their hysteresis curve are established and hysteresis energy has also increased.