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Seismic damage investigation and analysis of buildings in Ms6.8 Luding earthquake
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Jun ZHANG1, 2, Xun GUO3, Ruofan LUO4, Xiaoyao DONG1, 2, Ce DONG3, Qinzhe ZHANG3
Earthquake Engineering and Engineering Dynamics | 2024, 44(3) : 190 - 199
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Earthquake Engineering and Engineering Dynamics | 2024, 44(3): 190-199
Seismic damage investigation and analysis of buildings in Ms6.8 Luding earthquake
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Jun ZHANG1, 2, Xun GUO3, Ruofan LUO4, Xiaoyao DONG1, 2, Ce DONG3, Qinzhe ZHANG3
Affiliations
  • 1.Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
  • 2.Key Laboratory of Earthquake Disaster Mitigation, Ministry of Emergency Management, Harbin 150080, China
  • 3.Key Laboratory of Building Collapse Mechanism and Disaster Prevention, China Earthquake Administration, Institute of Disaster Prevention, Sanhe 065201, China
  • 4.School of Civil Engineering, Jiaying University, Meizhou 514015, China
doi: 10.13197/j.eeed.2024.0319
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The seismic damage investigation and analysis were performed on buildings in Moxi Town and Detuo Town in the meizoseismal area of the Ms6.8 Luding earthquake in Sichuan. Buildings with the characteristics of looseness, brittleness, and eccentricity were seriously damaged, while buildings with confined masonry structure and “even” structural layout have performed surprisingly well. Based on deformation saturation theory and the damage of Luding earthquake, the structural layouts of common buildings were divided into five forms: structure with full hard-brittle axis, structure with full weak-brittle axis, structure with full weak-ductility axis, structure with hard-brittle axis and weak-ductility axis ( either uneven or even), and the corresponding seismic damage performance and internal mechanism of each form were analyzed. The results indicated that the structure with full hard-brittle axis, the structure with full weak-brittle axis and the even structure with hard-brittle axis and weak-ductility axis had not reached the deformation saturation, so the seismic damage was extremely light, with almost no visible cracks, while the buildings with other structural layouts were damaged or even collapsed. Finally, it is suggested that the seismic design of structures should have the concept of “even” by using deformation saturation theory.

collapse mechanism  /  seismic damage investigation  /  deformation saturation  /  Luding earthquake
Jun ZHANG, Xun GUO, Ruofan LUO, Xiaoyao DONG, Ce DONG, Qinzhe ZHANG. Seismic damage investigation and analysis of buildings in Ms6.8 Luding earthquake[J]. Earthquake Engineering and Engineering Dynamics, 2024 , 44 (3) : 190 -199 . DOI: 10.13197/j.eeed.2024.0319
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Year 2024 volume 44 Issue 3
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doi: 10.13197/j.eeed.2024.0319
  • Receive Date：2023-02-27
  • Online Date：2026-03-30
Article Data
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History
  • Received：2023-02-27
  • Revised：2023-05-15
Funding
Affiliations
    1.Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
    2.Key Laboratory of Earthquake Disaster Mitigation, Ministry of Emergency Management, Harbin 150080, China
    3.Key Laboratory of Building Collapse Mechanism and Disaster Prevention, China Earthquake Administration, Institute of Disaster Prevention, Sanhe 065201, China
    4.School of Civil Engineering, Jiaying University, Meizhou 514015, 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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