Optimization and damping performance of a coal-fired power plant building with coal bucket dampers
KANG Yingjie1，PENG Lingyun1，PENG Yiliang2，XUE Tao3，GAO Xiaolong4，SU Jingyu1
1.Beijing University of Technology Beijing key Lab of Earthquake Engineering and structural Retrofit Beijing 100124, China;
2. Henan Electric Power Survey and Design Institute，Zhengzhou 450007, China;
3. State Nuclear Electric Power Planning，Design & Research Institute，Beijing 100094, China;
4. Tongji University College of civil engineering, Shanghai, 200092, China
Abstract：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.
康迎杰1 彭凌云1 彭奕亮2 薛涛3 杲晓龙4 苏经宇1. 煤斗调频减震火电厂结构优化设计及减震性能分析[J]. 振动与冲击, 2019, 38(16): 137-145.
KANG Yingjie1，PENG Lingyun1，PENG Yiliang2，XUE Tao3，GAO Xiaolong4，SU Jingyu1. Optimization and damping performance of a coal-fired power plant building with coal bucket dampers. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(16): 137-145.
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