Aiming at the design scheme for coal-fired power plant building with coal bucket dampers, an optimization method of design parameters was established and four kinds of damping structure models were designed according to the optimization method.The shock absorption effect of the damper-added structures under the action of 53 groups of ground motions was studied using the elastic time history analysis.Finally, the shock absorption effect of the structures in the elastoplastic stage under the action of the Elcentro wave was investigated.The results indicate that the four coal-fired power plant structures with coal bucket dampers have a significant reduction effect on the structure response compared with conventional structures.The reduction effect maintains a certain stability even after the structures entering into the elastoplastic stage and the story drift and the damage degree of the structures are obviously reduced.Overall, the use of coal bucket dampers in power plants, which changes the aseismic disadvantages into aseismic advantage, significantly enhances the seismic performance of structures and has good prospects for application.
Key words
coal bucket dampers /
coal-fired power plant /
optimal design /
seismic-reduced effect /
elastoplastic analysis
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