【摘要】 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.更多还原

【Abstract】 Crumb Rubber Concrete(CRC) is characterized with large damp coefficient,large deformation,low elastic modulus and so on.An analysis of the seismic behavior of a steel reinforced concrete frame-shear wall structure was conducted with its beams being conventional concrete and CRC concrete,respectively.The damp ratio ζ and elastic modulus reduction factor λ is introduced to differentiate CRC from conventional concrete and,the primary frequency,lateral rigidity,horizontal earthquake load and layer elastic deformation are calculated based on the standardized design procedure.The results show that CRC beams do increase the primary natural vibration frequency and reduce the floor lateral force,which means an improvement in earthquake resistance.更多还原