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Author(s): Hemchandra Chaulagain
Hugo Rodrigues
Vitor Silva
Enrico Spacone
Humberto Varum
Title: Earthquake Loss Estimation for the Kathmandu Valley
Issue Date: 2016-12-30
Abstract: Kathmandu Valley is geologically located on lacustrine sediment basin,characterized by a long history of destructive earthquakes. The past events resulted in largestructural damage, loss of human life's and property, and interrupted the social development. In recent years, the earthquake risk in this area has significantly increased due touncontrolled development, poor construction practices with no earthquake safety provisions, and lack of awareness amongst the general public and government authorities. In thiscontext, this study explores the realistic situation of earthquake losses due to futureearthquakes in Kathmandu Valley. To this end, three municipalities: (a) KathmanduMetropolitan City, (b) Lalitpur Sub-Metropolitan City and (c) Bhaktapur Municipality areselected for a case study. The earthquake loss estimation in the selected municipalities isperformed through the combination of seismic hazard, structural vulnerability, and exposure data. Regarding the seismic input, various earthquakes scenario considering fourseismic sources in Nepal are adopted. For what concerns the exposure, existing literaturedescribing the construction typologies and data from the recent national census survey of2011 are employed to estimate ward level distribution of buildings. The economic lossesdue to the earthquake scenarios are determined using fragility functions. Finally, the wardlevel distribution of building damage and the corresponding economic losses for eachearthquake scenario is obtained using the OpenQuake-engine. The distribution of buildingdamage within the Kathmandu Valley is currently being employed in the development of ashelter model for the region, involving various local authorities and decision makers.
Subject: Engenharia estrutural, Engenharia civil
Structural engineering, Civil engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia civil
Engineering and technology::Civil engineering
Document Type: Artigo em Revista Científica Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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