火力发电厂主厂房钢筋混凝土纵向框架抗震支撑设置

Research on longitudinal seismic braced reinforced concrete frame structure of main building of thermal power plant

鉴于大型火电厂主厂房钢筋混凝土纵向框架结构,目前常用的抗震措施尚缺乏足够的理论依据和试验研究,结合某设计实例,对火力发电厂主厂房纵向框架-抗震支撑结构和纯框架结构两种结构形式分别进行了抗震计算.结果表明:7度地震(0.15g)I、类建筑场地土、600 MW及以下机组主厂房的除氧煤仓间纵向结构可以不设抗震支撑,直接采用纯框架结构,其抗震性能可以满足抗震设防的要求.

For longitudinal reinforced concrete frame structure of the main building of large thermal power plants,the current aseismic measures often lack sufficient theoretical and experimental study. According to a design example, the seismic braced frame structure form and bare frame form are calculated and contrasted. The results show that the bare frame structure used on the longitudinal structure of bunker framework of the main building can meet the requirements of earthquake-proof and get notable technical and economic benefits in conditions of earthquake intensity Ⅷ （0.15g）, building grade Ⅰand unit caacity of 600 MW and lower.