论文部分内容阅读
受工艺的限制,火电厂主厂房结构布置复杂、空间整体性差。传统钢筋混凝土框排架主厂房的薄弱部位多,安全储备低,在高烈度区的运用受到限制。提出高烈度区大容量机组主厂房采用SRC柱-剪力墙混合结构,以提高结构的抗震性能,并降低工程造价。通过1 000 MW机组SRC柱-剪力墙主厂房模型结构抗震性能试验,研究了结构的变形特点、刚度退化规律、破坏模式和耗能能力等。研究结果表明,SRC柱-剪力墙主厂房混合结构承载能力高、抗震性能良好,剪力墙延缓了框排架子结构的开裂和破坏,能更好的运用于高烈度区大容量机组中。
By the process of restrictions, thermal power plant layout of the main plant complex, poor overall space. The traditional reinforced concrete frame-framed main plant has many weak places and low safety reserves, so the use of high-intensity areas is limited. It is proposed that the SRC column-shear wall hybrid structure should be adopted for the main plant of large-capacity unit in high-intensity area to improve the seismic performance of the structure and reduce the construction cost. Through the seismic performance test of SRC column-shear wall main building model of 1 000 MW unit, the deformation characteristics, stiffness degradation, failure mode and energy dissipation capacity of the structure are studied. The results show that the hybrid structure of SRC column-shear wall main plant has high bearing capacity and good seismic performance. The shear wall delaminates the cracking and failure of frame substructure and can be better used in high-capacity high-intensity unit.