双排配筋陶粒混凝土剪力墙抗震实验研究

Experimental Study on Seismic Behavior of Double-Row Reinforced Ceramsite Concrete Shear Wall

为了研究双排配筋陶粒混凝土剪力墙的抗震性能,共设计了3个同类型试件,即加纤维和保温板的陶粒混凝土剪力墙、加保温板的陶粒混凝土剪力墙及普通陶粒混凝土剪力墙对比试件.在往复荷载作用下,采用抗震实验的研究方法.通过对各试件的实验现象、承载力与变形、滞回与骨架曲线、刚度退化、延性及耗能等进行分析,研究结果表明:试件都是以脚部陶粒混凝土被压碎或钢筋被拉长、压弯导致剪力墙无法继续承受荷载而最终破坏.添加纤维并内置保温板对陶粒混凝土剪力墙的承载能力略有折减,但滞回环所包围面积相对较大,延性提高了9.87%,耗能系数提高了3.55%,刚度退化曲线相对更加平缓等,有利于构件或整体结构的受力和变形.可见,此类剪力墙具有优良的抗震性能.在实际工程中,建议此类复合剪力墙可以推广使用.

In order to study the seismic performance of double-row reinforced ceramsite concrete shear walls,three types of specimens were designed.In other words,it mainly includes ceramsite concrete shear wall with fiber and insulation board,ceramsite concrete shear wall with insulation board and ordinary ceramsite concrete shear wall.The test pieces mainly include ceramsite concrete shear wall with fiber and insulation board,ceramsite concrete shear wall with insulation board and ordinary ceramsite concrete shear wall.Under the action of reciprocating load,the research method of seismic test is adopted.By analyzing the test phenomena,bearing capacity and deformation,hysteresis and skeleton curve,stiffness degradation,ductility,and energy consumption of each test piece,the research results show that the test pieces are crushed or reinforced with ceramsite concrete at the foot Being stretched and bent,the shear wall cannot continue to bear the load and eventually breaks down.The bearing capacity of the ceramsite concrete shear wall is slightly reduced by adding fibers and built-in insulation boards,but the area surrounded by the hysteresis loop is relatively large,the ductility is increased by 9.87%,the energy consumption coefficient is increased by 3.55%,and the stiffness degradation curve is relatively more Gently,etc.,which are conducive to the stress and deformation of the component or the overall structure.It can be seen that this type of shear wall has excellent seismic performance.In actual projects,it is recommended that such composite shear walls can be promoted and used.