Stability-based damage assessment and rapid post-disaster quantification of a latticed shell subjected to earthquake loading
Stability-based damage assessment and rapid post-disaster quantification of a latticed shell subjected to earthquake loading
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基于稳定性的损伤评估和地震荷载作用下网格壳的快速灾后量化
DOI：
10.1016/j.engstruct.2019.110020
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发表时间：
2020-03
影响因子：
5.5
通讯作者：
H.P. Hong
中科院分区：
文献类型：
--
作者：
Y.G. Li;H.P. Hong
已经观察到地震导致的网格壳损坏，并且这种损坏会影响全局不稳定的临界载荷。在本研究中，对球形网格穹顶在持续地震激励后的临界载荷系数进行了研究。损伤系数的评估是基于结构在地震前后的整体失稳的初始和剩余临界荷载系数。通过考虑记录间的变化以及单向和双向地震激励的使用，提出了网状壳损坏系数的统计数据和概率模型。结果表明考虑双向地面运动来评估损坏因素的重要性。脆弱性曲线被估计并用作开发一种方法的基础，用于临时紧急使用的格子壳的灾后实用和快速量化。可以使用结构现场观测到的地面运动记录来进行鉴定。如果无法获得持续地震事件的记录，则建议根据地震事件的震级和震中距离，使用实用图表来确定结构是否适合临时紧急使用。
Damage of latticed shells due to the earthquake has been observed and the damage can affect the critical load for global instability. In the present study, an investigation of the critical load factor of a spherical latticed dome after sustaining seismic excitation is carried out. The evaluation of the damage factor is presented based on the initial and remaining critical load factors for global instability before and after the structure sustained an earthquake. The statistics and the probabilistic model of the damage factor of the latticed shell are presented by considering the record-to-record variability and the use of the uni- and bi-directional seismic excitation. The results show the importance of considering bidirectional ground motions to assess the damage factor. Fragility curves are estimated and are used as a basis to develop an approach for practical and rapid post-disaster quantification of a latticed shell for temporary emergency use. The qualification can be carried out using the observed ground motion record at the structural site. If the record of the sustained seismic event is unavailable, a practical chart for qualifying the structure for temporary emergency use is recommended based on the magnitude and epicentral distance of the seismic event.
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影响因子：
6.4
作者：
F. Fan;Jiachuan Yan;Z. Cao
通讯作者：
F. Fan;Jiachuan Yan;Z. Cao
DOI：
--
发表时间：
2007
期刊：
Journal- International Association for Shell and Spatial Structures
影响因子：
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作者：
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通讯作者：
de Magistris, Filippo Santucci
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影响因子：
5.5
作者：
Li Y. G.;Fan F.;Hong H. P.
通讯作者：
Hong H. P.
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DOI：
10.1016/j.ijsolstr.2015.05.023
发表时间：
2015-09
影响因子：
3.6
作者：
Yao Chen;Jian Feng;Pooya Sareh
通讯作者：
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