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橡胶集料混凝土具有阻尼大、变形能力强和弹性模量低等特点.首次以结构自振周期、侧向刚度、水平地震载荷和结构层间弹性位移为参考指标,引进阻尼比ζ和弹性模量折减系数λ,分析横梁加入橡胶集料对框架-剪力墙结构抗震性能的影响,并且与相对应的普通混凝土框架-剪力墙结构作对比.分析结果显示,相对于普通混凝土框架-剪力墙结构侧向刚度较大等特点,在横梁中掺入橡胶集料后能适当地降低结构侧向刚度,延长结构基本周期,降低水平地震载荷,从而提高结构抗震性能.
The rubber aggregate concrete has the characteristics of large damping, high deformation capacity and low modulus of elasticity.For the first time, taking the natural vibration period, the lateral stiffness, the horizontal seismic load and the elastic displacement between the layers as the reference indexes, the damping ratio ζand the elastic modulus The quantity reduction coefficient λ, the influence of adding rubber aggregate on the seismic performance of frame-shear wall structure is analyzed and compared with the corresponding ordinary concrete frame-shear wall structure.The analysis results show that compared with ordinary concrete frame- Lateral stiffness of the shear wall structure is large. After the rubber aggregate is incorporated into the beam, the lateral stiffness of the structure can be properly reduced, the basic period of the structure can be extended, the horizontal seismic load can be reduced, and the seismic performance of the structure can be improved.