Experimental study on the energy absorption characteristics of viscoelastic damping layers

doi:10.1088/1755-1315/861/2/022026

	Experimental study on the energy absorption characteristics of viscoelastic damping layers
	Mei,Xiancheng 3,4; Sheng,Qian 3,4; Cui,Zhen 3,4; Luo,Qingzi 1,2
刊名	IOP Conference Series: Earth and Environmental Science
	2021-10-01
卷号	861 期号:2
ISSN号	1755-1307
DOI	10.1088/1755-1315/861/2/022026
英文摘要	Abstract This work aims to further promote the research and development of flexible damping technology for the seismic damage control of underground engineering structures. On the basis of the understanding of the application of viscoelastic damping theory to the field of earthquake resistance of bridge buildings, impact tests on different rock damping layer– concrete specimens are conducted using the improved split Hopkinson pressure bar test system to analyze the energy absorption characteristics of the viscoelastic damping layers. A comparative analysis of the test results is also performed to differentiate the laws of energy absorption of the viscoelastic damping layer structure using different damping layer materials (rubber and silicone) and different damping layer shapes (honeycomb, corrugated, and cylindrical). Given damping layers with the same material and structure, the energy absorption laws of the structures with different damping layer thicknesses are compared and analyzed. The optimal thickness of the damping layers is also discussed. Results show that the incident energy absorbed by the damping layers of different materials increases by more than 10% relative to the control group (rock–concrete specimen). Such an increase indicates that the structures have superior energy absorption characteristics and that the rubber material can absorb more incident energy than the high-damping silicone as the damping layer. As for the damping layer shapes, the composite damping layer structure with a honeycomb shape achieves the best energy absorption among all structures. The comparison and analysis of the energy absorption effects when the damping layer thicknesses are 10, 20, and 25 mm reveal that a 20 mm-thick damping layer shows the best energy absorption effect. The current findings can provide theoretical foundation and data support for the application of composite damping layers to the seismic design of underground engineering structures.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:EES_861_2_022026
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28410]
专题	中科院武汉岩土力学所
作者单位	1.MOE Key Lab of Disaster Forecast and Control in Engineering, Jinan University, Guangzhou 510632 2.School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006 3.University of Chinese Academy of Sciences, Beijing, 100049, China 4.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
推荐引用方式 GB/T 7714	Mei,Xiancheng,Sheng,Qian,Cui,Zhen,et al. Experimental study on the energy absorption characteristics of viscoelastic damping layers[J]. IOP Conference Series: Earth and Environmental Science,2021,861(2).
APA	Mei,Xiancheng,Sheng,Qian,Cui,Zhen,&Luo,Qingzi.(2021).Experimental study on the energy absorption characteristics of viscoelastic damping layers.IOP Conference Series: Earth and Environmental Science,861(2).
MLA	Mei,Xiancheng,et al."Experimental study on the energy absorption characteristics of viscoelastic damping layers".IOP Conference Series: Earth and Environmental Science 861.2(2021).