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采用基于位移的抗震设计方法对屈曲约束支撑混凝土框架进行抗震设计,采用线性侧移曲线,基于弹塑性位移反应谱求得结构的屈服基底剪力,对屈曲约束支撑进行设计。按照此方法分别设计5层和10层屈曲约束支撑混凝土框架结构,并对设计结果进行Pushover分析和动力时程分析。结果表明:屈曲约束支撑可有效控制结构的位移,结构的侧移模式与假定基本一致,可实现屈曲约束支撑混凝土框架的抗震性能设计。
A seismic design method based on displacement is adopted to design the seismic design of the flexural restraint brace concrete frame. The linear lateral displacement curve is used to calculate the yielding base shear of the structure based on the elastoplastic displacement response spectrum, and the buckling restrained brace is designed. According to this method, the 5-story and 10-story buckling restrained concrete frame structures are respectively designed, and the Pushover analysis and dynamic time history analysis of the design results are carried out. The results show that the buckling restrained brace can effectively control the displacement of the structure, and the lateral displacement mode of the structure is basically consistent with the assumption, which can be used to design the seismic performance of the concrete frame with buckling restraint.