火电厂主厂房不同布置方式下地震反应对比分析

Comparing and Analyzing for Seismic Response of Main Workshop of Heat-engine Plant under Different Arrangement Formation

大型火力发电厂是重要的生命线工程,主厂房传统的布置方式采用三连式布置方式,而新的布置方式采用汽机房和煤仓间交叉布置方式。用有限元分析软件对两种布置方式进行反应谱分析,从而对两种布置方式在不同地震烈度条件下的主厂房的层间剪力、层间位移及层间位移角进行对比分析。结果表明,在不同地震烈度条件下,主厂房采用交叉布置方式时,主厂房的质量、刚度的分布较采用三连式布置方式时均匀;主厂房采用交叉布置方式时,主厂房的抗震性能要比主厂房采用三连式布置方式时要好。

Huge heat-engine plant is the crucial lifeblood project,the traditional arrangement formation of which is the triple-connected method,but the latest arrangement formation of which is the cross arrangement method between the turbine hall and coal-store hall.Comparing and analyzing the response spectrum of the said two methods by using finite element software,the interlaminated shear force,interlaminated displacement and interlaminated displacement angle under different seismic intensity are compared and analyzed.The results indicate that the quality and rigidity of the main workshop by using cross arrangement method are more even than those of the one by using triple-connected method under different seismic intensity,and the anti-seismic performance of the former is better than that of the latter.