不同构造措施的钢管混凝土边框钢板剪力墙抗震性能试验研究

钢管混凝土边框钢板剪力墙是一种新型抗震剪力墙,为了比较不同构造措施对该新型剪力墙抗震性能的影响,进行了3个剪跨比为1.5的钢管混凝土边框钢板剪力墙低周反复荷载试验。其中,试验模型1为墙体钢板与边框柱钢管焊接,试验模型2为墙体钢板与边框柱钢管螺栓连接,试验模型3为墙体钢板开孔并与边框柱钢管焊接。通过试验研究,比较了各剪力墙的破坏特征、滞回特性、承载力、刚度、延性以及耗能能力。结果表明：在墙体钢板与边框柱钢管的连接方式中,采用焊接或栓接对剪力墙的整体性能影响不大;与普通钢管混凝土边框钢板剪力墙相比,钢板开孔钢管混凝土边框钢板剪力墙在开孔率不大的情况下,其承载力、延性、刚度和耗能能力没有明显变化。

Experimental Study on Seismic Performance of Steel-plate Shear Walls with Concrete Filled Steel Tube Columns and Different Constructional Measures

The steel-plate shear wall with concrete filled steel tube columns is a new type of composite shear wall.In order to assess the seismic performance of new shear walls with different constructional measures,experimental study of three specimens with the same shear span ratio 1.5 were carried out under cyclic loading： one with the steel plate and the steel tubes being connected by welding,one with the steel plate and the steel tubes being connected by bolts,and one with the steel plate and the steel tubes being connected by welding as well as with low opening ratio of holes in the steel plate.Based on the experiment,the damage characteristics,hysteretic behavior,load-carrying capacity,stiffness,ductility and energy dissipation of the specimens were contrastively analyzed.The experimental results showed that the connection type between the steel plate and the steel tubes,either in welding or in bolting,had little effect on the overall performance of the shear walls.Compare to the normal steel-plate shear walls with concrete filled steel tube columns,the load-carrying capacity,ductility,stiffness and energy dissipation of the perforated steel-plate shear walls with concrete filled steel tube columns had not obvious change under low opening ratio of holes.