摘要
火力发电厂的核心建筑主厂房中布置着大量机械设备、电气设备等,其内的设备是整个建筑的重要组成部分。该文建立考虑设备与结构相互作用的主厂房结构计算模型,并以单独的火力发电厂主厂房结构模型作为对比,通过静力推覆分析,对其进行抗震性能评估,并对两模型进行基于SPO2IDA的地震易损性分析,发现主厂房结构-设备相互作用体系弹塑性阶段具有更大的刚度,煤斗对于煤斗层及其相邻层有很大的减震作用,但对于出现最大层间位移角的楼层反而层间位移角有略微增大,得到基于SPO2IDA方法的主厂房结构-设备相互作用体系地震易损性曲线。
The main building structure in a thermal power plant houses a large number of mechanical and electrical equipment,which is an essential component of the entire building.In this study,a calculation model for the main building structure considering the interaction between equipment and structure was established.A separate structural model of the main building structure was used as a comparison.Through static push-over analysis,the seismic performance of the structure was evaluated.The seismic fragility analysis based on SPO2IDA was conducted for both models.It was found that the structure-equipment interaction system in the elastic-plastic stage has a higher stiffness.The coal bunker has a significant damping effect on the coal bunker layer and adjacent layers,but it slightly increases the inter-story drift angle on the floor with the maximum inter-story displacement angle.The seismic fragility curve of the structure-equipment interaction system in the main power plant is obtained based on the SPO2IDA method.
作者
胡扬
柏文
戴君武
李庆文
胡激吉
HU Yang;BAI Wen;DAI Junwu;LI Qingwen;HU Jiji(Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China;Key Laboratory of Earthquake Disaster Mitigation,Ministry of Emergency Management,Harbin 150080,China;China Energy Engineering Group Liaoning Electric Power Survey&Design Institute Co.,Ltd.,Shenyang 110170,China;Ningbo Beilun District Public Works and Municipal Construction Co.,Ltd.,Ningbo 315800,China)
出处
《地震工程与工程振动》
北大核心
2025年第4期151-158,共8页
Earthquake Engineering and Engineering Dynamics
基金
中国地震局工程力学研究所基本科研业务费专项资助项目(2024C22)
云南省市一体化项目(202202AH210004)
国家自然科学基金项目(52378542,52008382)。
关键词
结构-设备相互作用
静力推覆
SPO2IDA
地震易损性
火力发电厂主厂房结构
structure-equipment interaction
static push-over analysis
SPO2IDA
seismic fragility
main power plant structure in a thermal power plant
