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Damping Characteristics of Coral Concrete Under Cyclic Loading
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Linjian MA1, Jicheng LIU2, Ning ZHANG2, Lei WANG3, Liqun DUAN1, Zhizhong LI1
Journal of the Chinese Ceramic Society | 2020, 48(11) : 1765 - 1770
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Journal of the Chinese Ceramic Society | 2020, 48(11): 1765-1770
• Research Articles •
Damping Characteristics of Coral Concrete Under Cyclic Loading
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Linjian MA1, Jicheng LIU2, Ning ZHANG2, Lei WANG3, Liqun DUAN1, Zhizhong LI1
Affiliations
  • 1.State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, Army Engineering University of PLA, Nanjing 210007, China
  • 2.School of science, Nanjing University of Science and Technology, Nanjing 210000, China
  • 3.College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China

    • MA Linjian (1984-), male, Ph.D., Associate Professor. E-mail:

About Author:

MA Linjian (1984-), male, Ph.D., Associate Professor. E-mail:

Published: 2020-11-20 doi: 10.14062/j.issn.0454-5648.20200116
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A whole coral sand concrete was prepared via mixing coral gravel, coral sand with seawater, cement and water reducer. The coral damping ratio with the deformation and failure process of concrete evolution curve was investigated by upper limit stress, lower limit stress at different loading frequencies and sine wave cycle and unloading tests. The load waveform parameters on the coral damping characteristics of concrete law and the mechanism were also analyzed. The results show that the damping ratio has the characteristics of initial attenuation, steady state and acceleration. The average damping ratio of coral concrete is 3.9%-5.9%, which is greater than that of ordinary concrete. Increasing the upper limit stress, decreasing the lower limit stress or increasing the loading frequency will increase the damping ratio of coral concrete, and the damping ratio is the most sensitive to the change of the upper limit stress rather than the change of the lower limit stress, and the lowest sensitive to the change of frequency.

coral concrete  /  cyclic load  /  damping ratio  /  mechanical property
马林建, 刘基程, 张宁, 王磊, 段力群, 李治中. 循环荷载作用下珊瑚混凝土的阻尼特性. 硅酸盐学报, 2020 , 48 (11) : 1765 -1770 . DOI: 10.14062/j.issn.0454-5648.20200116
Linjian MA, Jicheng LIU, Ning ZHANG, Lei WANG, Liqun DUAN, Zhizhong LI. Damping Characteristics of Coral Concrete Under Cyclic Loading[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (11) : 1765 -1770 . DOI: 10.14062/j.issn.0454-5648.20200116
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Year 2020 volume 48 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20200116
  • Receive Date：2020-02-28
  • Online Date：2026-10-29
  • Published：2020-11-20
Article Data
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History
  • Received：2020-02-28
  • Revised：2020-06-12
Funding
Affiliations
    1.State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, Army Engineering University of PLA, Nanjing 210007, China
    2.School of science, Nanjing University of Science and Technology, Nanjing 210000, China
    3.College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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