RESEARCH ON DAMPING PERFORMANCE OF SUSPENDED COAL BUCKET TMD FOR THERMAL POWER PLANT STRUCTURE

PENG Lingyun; YUAN Yongqiang; TANG Zhenyun; KANG Yingjie; YIN Yiwen; FANG Guowei

doi:10.13204/j.gyjz202004006

Volume 50 Issue 4

Jun. 2020

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PENG Lingyun, YUAN Yongqiang, TANG Zhenyun, KANG Yingjie, YIN Yiwen, FANG Guowei. RESEARCH ON DAMPING PERFORMANCE OF SUSPENDED COAL BUCKET TMD FOR THERMAL POWER PLANT STRUCTURE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(4): 30-38. doi: 10.13204/j.gyjz202004006

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RESEARCH ON DAMPING PERFORMANCE OF SUSPENDED COAL BUCKET TMD FOR THERMAL POWER PLANT STRUCTURE

doi: 10.13204/j.gyjz202004006

Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China

Received Date: 2019-10-14

Abstract

Abstract

In order to verify the damping effect of the suspended coal bucket TMD on the structure of the thermal power plant, a structural finite element model was established to compare the damping effects of the one-way and two-way seismic action, and a structural test model with a scale ratio of 1:12 was fabricated. Two-way shaking table test of different seismic waves under three-level earthquake intensity was conducted, and a comparison test of a conventional scheme of fixing the coal bucket and the floor, and a scheme of the hanging coal bucket TMD scheme using elastic and damping elements connected to the floor was performed, in which multiple earthquakes occur. In addition, the comparison test of the damping effect of the suspension coal bucket TMD with or without damping was carried out. The results showed that the coupling effect of the X and Y directions of the hanging coal bucket TMD was small, and it could be independent of the X and Y directions of the structure based on the TMD theory. The parameter optimization was carried out, and the optimized suspension coal bucket TMD had a remarkable effect on the structural displacement control under different levels of action, and had good control effect on the acceleration under multiple earthquake levels, and the displacement and acceleration of the damped suspension coal bucket TMD structure were reduced. The seismic effect was better than that of the undamped suspension coal bucket TMD structure.
- suspended coal bucket TMD,
- thermal power plant,
- parameter optimization,
- shaking table tests,
- damping effect

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References

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RESEARCH ON DAMPING PERFORMANCE OF SUSPENDED COAL BUCKET TMD FOR THERMAL POWER PLANT STRUCTURE

doi: 10.13204/j.gyjz202004006

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RESEARCH ON DAMPING PERFORMANCE OF SUSPENDED COAL BUCKET TMD FOR THERMAL POWER PLANT STRUCTURE

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