ZHOU Qiang,XIAO Hui,CHEN Dong,et al.Cumulative Damage Analysis of Masonry Structure under Mainshock‑aftershock Sequence[J].Journal of Disaster Prevention and Mitigation Engineering,2023,43(04):770-777.
A strong earthquake is usually followed by many aftershocks, and the seismic damage caused by multi-earthquake tend to be more serious than that caused by a mainshock. In order to explore the cumulative damage of masonry structures under the mainshock-aftershock sequence, a numerical simulation of an accomplished shaking table model of a masonry structure was carried out . The reliability of the finite element model was verified by the shaking table test results. On this basis, the elastic-plastic dynamic time history analysis for the prototype structure of the shaking table test model was carried out by inputting the real mainshock-aftershock sequence. The maximum inter-story drift angle and structural damage energy dissipation were used as damage indexes to compare and analyze the influence of the mainshock-aftershock sequence on structure's cumulative damage. The results show that the structure's damage energy dissipation can reflect the structure's cumulative damage under the mainshock-aftershock sequence more sensitively; the structure's damage energy dissipation is affected by the intensity of mainshock and aftershock; the structure's damage energy dissipation ratio has a second order relationship with the mainshock intensity, and has a linear relationship with the aftershock intensity.
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references
Reyners M . Lessons from the destructive Mw 6.3 Christchurch, New Zealand, Earthquake [J]. Seismological Research Letters , 2011 , 82 ( 3 ): 371 ‑ 372 .
Xue Y Q . Study on cumulative additional damage of RC frame structures under main shock‑aftershock sequence‑type ground motions [D]. Harbin : Institute of Engineering Mechanics, China Earthquake Administration , 2016 . (in Chinese)
Yu X H , Dai K Y , Zhou Z , et al . Damage assessment of a reinforced concrete frame structure subjected to mainshock‑aftershock sequences [J]. Journal of Building Structures , 2019 , 40 ( 3 ): 127 ‑ 133 . (in Chinese)
Shokrabadi M , Burton H V . Risk‑based assessment of aftershock and mainshock‑aftershock seismic performance of reinforced concrete frames [J]. Structural Safety , 2018 , 73 : 64 ‑ 74 .
Salami M R , Kashani M M , Goda K . Influence of advanced structural modeling technique, mainshock aftershock sequences, and ground‑motion types on seismic fragility of low‑rise RC structures [J]. Soil Dynamics and Earthquake Engineering , 2019 , 117(FEB): 263‑ 279 .
Wu B . Experiment and analysis for the damage of reinforced concrete structures under mainshock and aftershocks [D]. Harbin : Harbin Architectural and Civil Engineering Institute , 1993 . (in Chinese)
Ou J P , He Z , Wu B , et al . Seismic damage performance‑based design of reinforced concrete structures [J]. Earthquake Engineering and Engineering Dynamics , 1999 , 19 ( 1 ): 21 ‑ 30 . (in Chinese)
Valles R E , Reinhorn A M , Kunnath S K . IDARC2D, Version 4.0: A computer program for the inelastic damage analysis of buildings [R]. Buffalo : National Center for Earthquake Engineering Research , 1996 .
Wang G Y . Practical methods of optimum aseismic design for engineering structures and systems [M]. Beijing : China Architecture and Building Press , 1999 : 36 ‑ 68 . (in Chinese)
Yang F J , Wang G X . Damage energy dissipation analysis of RC frame structure under mainshock‑aftershock sequence‑type ground motions [J]. World Earthquake Engineering , 2019 , 35 ( 1 ): 45 ‑ 52 . (in Chinese)
Sun B T , Huang P D , Yao X Q , et al . Seismic test researsh of typical single story masonry retrofitted with PP‑band in Tibet [J]. World Earthquake Engineering , 2018 , 34 ( 1 ): 40 ‑ 50 . (in Chinese)
Zhou Q , Chen S , Sun B T , et al . Shaking table test of single‑story masonry structures with aseismic system of constructional columns and ring beams [J]. Journal of Harbin Engineering University , 2017 , 38 ( 10 ): 1650 ‑ 1660 . (in Chinese)
Zhu Z Y . Analysis model of seismic behavior of masonry walls and its engineering application [D]. Shanghai : Shanghai Jiao Tong University , 2015 . (in Chinese)
刘桂秋 . 砌体结构基本受力性能的研究 [D]. 长沙 : 湖南大学 , 2005 .
Liu G Q . The research on the basic mechanical behavior of masonry structure [D]. Changsha : Hunan University , 2005 . (in Chinese)
Yin Z Q , Zhao Z , Yang S W . Relation between vulnerability of buildings and earthquake acceleration spectra (1) [J]. Earthquake Engineering and Engineering Dynamics , 2003 , 23 ( 4 ): 195 ‑ 200 . (in Chinese)
Yu Y Q . Seismic design method of reinforcement concrete frame structures considering main shock‑aftershock effects [D]. Harbin : Harbin Institute of Technology , 2020 . (in Chinese)
Reagan C , Jack W B , Gregory G D . Quantifying the influence of ground motion duration on structural collapse capacity using spectrally equivalent records [J]. Earthquake Spectra , 2016 , 32 ( 2 ), 927 ‑ 950 .
Wang B B , Dong J . Nonlinear finite element analysis of masonry wall using damaged plasticity model [J]. Journal of Disaster Prevention and Mitigation Engineering , 2014 , 34 ( 2 ): 216 ‑ 222 . (in Chinese)
Zhang J , Wang Q Y , Hu S Y , et al . Parameters validation of concrete damaged plastic model of ABAQUS [J]. Building Structures , 2008 , 38 ( 8 ): 127 ‑ 130 . (in Chinese)
Shang S P , Li L , Tang Y X . Investigation on aseismic performance of HPFL‑brick composite structural concrete column and ring beam [J]. Journal of Disaster Prevention and Mitigation Engineering , 2015 , 35 ( 6 ): 822 ‑ 827 . (in Chinese)
Zhang H , Meng Y C , Tian L Y . Seismic vulnerability factors analysis of masonry structure based on IDA [J]. Journal of Disaster Prevention and Mitigation Engineering , 2017 , 37 ( 1 ): 49 ‑ 53 . (in Chinese)