型钢再生混凝土剪力墙的抗震性能试验研究

Steel Recycled Concrete Shear Wall Seismic Performance Experimental Research

为探讨再生骨料取代率和暗柱箍筋间距对型钢混凝土剪力墙抗震性能的影响,设计再生粗骨料取代率分别为0,30%,60%,100%的型钢再生混凝土剪力墙4片,在再生粗骨料取代率为100%的基础上改变暗柱箍筋间距,设计间距为125,150mm的型钢再生混凝土剪力墙2片,通过轴向压力和水平向低周反复荷载加载,对抗震性能进行研究。研究结果表明:试件损伤发展速率随再生粗骨料取代率的增加有所增加;大体积配箍率试件损伤发展慢于小体积配箍率试件,增大体积配箍率可延缓试件损伤发展,延性及耗能得到提高。

To find the influence of the replacement rate of recycled concrete and the column’s space of dark columns on the aseismic behavior of the steel reinforced concrete shear wall In this paper,we design four pieces recycled concrete shear wall.The difference between them is the replacement rate of recycled concrete,the rate is 0,30%,60%,100%in turn.We also design two piece recycled concrete shear wall.The difference between them is the column’s space of dark columns.We studied the behavior of the six concrete shear wall when it bear low reversed cyclic loading.According to the experimental study,we can draw the conclusion.If the recycled concrete aggregate rate increase,the damage of the wall will develop faster which means the increase of recycled concrete aggregate rate is not good for recycled concrete shear wall.Damage of recycled concrete shear wall of large volume stirrup ratio develops slower than the recycled concrete shear wall of small volume stirrup ratio.Increasing the volume rate can slow specimen damage development.The ductility and energy dissipation are also improved.