以钢框架-钢筋混凝土实体剪力墙混合结构为对象,通过分别开设一道和两道竖缝,分析它们在不同类型地震波下的地震能量反应,结果表明,剪力墙竖向开缝可以减少结构在地震作用下的滞回耗能量,并使滞回耗能区域过于集中于底部剪力墙的问题得以明显改善,使得耗能性能更为优越的钢构件能够承担相当部分的滞回耗能;分缝越多,改善效果越为明显。
Seismic energy dissipation of steel frame-reinforced concrete slit shear wall systems to 4 types of ground motions is assessed. The study shows that the hysteretic energy to input energy ratio (v) and the hysteretic energy of bottom shear wall to the hysteretic energy of structure ratio ( μ1 ) are decreased with the increase of the quantity of vertical slits, meanwhile the hysteretic energy of steel frame to the hysteretic energy of structure ratio ( μ2) are increased with it. The earthquake resistance of steel frame-reinforced concrete shear wall structures may be improved by slitting shear walls.