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针对我国高烈度区大容量机组火力发电厂主厂房钢筋混凝土框排架结构“先天不足”以及钢结构主厂房造价高的现状,提出采用型钢混凝土(SRC)框架-钢筋混凝土(RC)分散剪力墙构成的混合结构体系作为主厂房新型结构体系.根据该结构体系特点,选取三榀三跨结构进行1/7比例空间模型拟动力和拟静力试验,研究了该新型结构体系在水平地震作用下的受力特点和SRC框架与RC剪力墙协同工作性能等;采用ABAQUS软件进行了动力弹塑性分析,数值分析结果与试验结果吻合较好.研究结果表明,该新型结构体系具有良好的抗震性能,能够满足高烈度区大容量机组主厂房结构的抗震要求,且造价及后期维护费用低廉,可供同类结构设计参考.
Aiming at the present situation of the frame structure of the reinforced concrete box-girder and the high cost of the main structure of the steel structure in the large-capacity unit thermal power plant of China’s high-intensity district, the SRC frame-reinforced concrete (RC) Based on the characteristics of the structural system, the three-span three-span structure is chosen to simulate the quasi-dynamic and quasi-static tests of the 1/7 scale space model. The effects of the new structural system on horizontal seismic Under the action of SRC frame and RC shear wall collaborative work performance; using ABAQUS software dynamic elasto-plastic analysis, numerical analysis and experimental results agree well.The results show that the new structural system has a good Seismic performance, can meet the seismic requirements of the main plant structure of high-capacity units in high intensity area, and the cost and maintenance costs are low, for reference to similar structural design.