【摘要】 研究了一种摇摆式钢筋混凝土框架的抗震性能。首先建立了摇摆式钢筋混凝土框架结构的有限元模型并进行了试验验证;其次使用弹塑性静力分析方法评定无控及受控式摇摆钢筋混凝土框架结构的抗震性能;最后对比分析无控及受控摇摆式钢筋混凝土框架结构的抗震性能。结果表明设置阻尼器后的摇摆式钢筋混凝土框架的结构等效阻尼比大幅度提升,结构塑性变形耗能转变成阻尼器屈服耗能,结构位移响应得到了有效控制。更多还原

【Abstract】 Seismic performance of a rocking reinforced concrete frame is researched with the method of push-over analysis. Firstly,the finite element model of the rocking reinforced concrete frame structure is established and verified by the experiment. Secondly,push-over analysis is processed to study the seismic performance of the structure.Finally,the seismic performance of the rocking reinforced concrete frame structure with damper and without damper are compared. The results show that the rocking reinforced concrete frame with damper improves its performance,i. e. the damping ratio of the rocking reinforced concrete frame structure is greatly increased,the energy dissipation is changed from plastic deformation to yield of damper and the displacement response is effectively controlled.更多还原