DOI: 10.1007/s11069-020-03871-7
论文题名: Experimental, numerical and field study investigating a heritage structure collapse after the 2015 Gorkha earthquake
作者: Kumar A. ; Hughes P.N. ; Sarhosis V. ; Toll D. ; Wilkinson S. ; Coningham R. ; Acharya K.P. ; Weise K. ; Joshi A. ; Davis C. ; Kunwar R.B. ; Maskey P.N.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 101, 期: 1 起始页码: 231
结束页码: 253
语种: 英语
中文关键词: Heritage structures
; Nepal earthquake
; Numerical modelling
; Soil investigation
英文关键词: dynamic response
; geotechnical survey
; Gorkha earthquake 2015
; historic building
; numerical model
; soil-structure interaction
; structural analysis
; structural response
; triaxial test
; Bagmati
; Kathmandu
; Nepal
英文摘要: This paper presents an investigation of the collapse of a 325-year-old multi-tiered heritage temple during the 2015 Gorkha earthquake in Kathmandu, Nepal. The research comprises a reconnaissance survey followed by a geotechnical investigation and numerical back-analysis carried out to understand the potential causes of the collapse. The assessment of the structural configuration of the temple indicated seismic vulnerability in the design due to the presence of discontinuous columns over the height of the temple and age-weakened bonding in the masonry walls. The geotechnical investigation revealed the presence of competent soil strata at the location, assisting the survey which indicated no differential or excessive settlement in the foundation. A series of cyclic triaxial tests were conducted on samples recovered during the geotechnical investigation to determine dynamic behaviour of the soil. Further, dynamic analysis of the plinth of the temple under the recorded acceleration–time history indicated a maximum drift percentage of 1.4% and residual relative displacement of 32 mm suggesting the potential reason behind the collapse. The output of this research will support seismic rehabilitation of ancient structures within World Heritage sites across Nepal and effective action plans to safeguard them against future earthquake hazard. © 2020, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168572
Appears in Collections: 气候变化与战略
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作者单位: Department of Engineering, Durham University, Durham, United Kingdom; School of Civil Engineering, University of Leeds, Leeds, United Kingdom; School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom; Department of Archaeology, Durham University, Durham, United Kingdom; ICOMOS, Kathmandu, Nepal; Department of Archaeology, Kathmandu, Nepal; Institute of Engineering, Tribhuvan University, Kathmandu, Nepal
Recommended Citation:
Kumar A.,Hughes P.N.,Sarhosis V.,et al. Experimental, numerical and field study investigating a heritage structure collapse after the 2015 Gorkha earthquake[J]. Natural Hazards,2020-01-01,101(1)