Seismic performance assessment of a conventional multi-storey building

Recent earthquakes have revealed that conventional seismic design philosophy allows for large levels of nonstructural damage. Nonstructural earthquake damage results in extensive repair costs and lengthy functional disruptions, as nonstructural systems comprise the majority of building investment an...

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Main Authors: Del Gobbo, G, Williams, M, Blakeborough, A
Format: Journal article
Published: Beijing Normal University Press 2017
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author Del Gobbo, G
Williams, M
Blakeborough, A
author_facet Del Gobbo, G
Williams, M
Blakeborough, A
author_sort Del Gobbo, G
collection OXFORD
description Recent earthquakes have revealed that conventional seismic design philosophy allows for large levels of nonstructural damage. Nonstructural earthquake damage results in extensive repair costs and lengthy functional disruptions, as nonstructural systems comprise the majority of building investment and are essential to building operations. A better understanding of the expected overall seismic performance of code-compliant buildings is needed. This study investigates the seismic performance of a conventional building. A 16-storey steel office building was designed using a modern seismic structural code (Eurocode 8). This study is the first to assess in detail the substantial earthquake repair costs expected in a modern Eurocode concentric braced frame structure, considering nonstructural systems with the FEMA P-58 procedure. The breakdown of total repair costs by engineering demand parameter and by fragility group is novel. The seismic performance assessment indicated that substantial earthquake repair costs are expected. Limitations of the Eurocode nonstructural damage methodology were revealed in a novel manner using FEMA P-58, as the prescribed drift limits did not minimize nonstructural repair costs. These findings demonstrate the need for design procedures that improve nonstructural seismic performance. The study results provide a benchmark on which to evaluate retrofit alternatives for existing buildings and design options for new structures.
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spelling oxford-uuid:877413ef-28f3-46ef-b0c1-946cdfe236f42022-03-26T22:10:45ZSeismic performance assessment of a conventional multi-storey buildingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:877413ef-28f3-46ef-b0c1-946cdfe236f4Symplectic Elements at OxfordBeijing Normal University Press2017Del Gobbo, GWilliams, MBlakeborough, ARecent earthquakes have revealed that conventional seismic design philosophy allows for large levels of nonstructural damage. Nonstructural earthquake damage results in extensive repair costs and lengthy functional disruptions, as nonstructural systems comprise the majority of building investment and are essential to building operations. A better understanding of the expected overall seismic performance of code-compliant buildings is needed. This study investigates the seismic performance of a conventional building. A 16-storey steel office building was designed using a modern seismic structural code (Eurocode 8). This study is the first to assess in detail the substantial earthquake repair costs expected in a modern Eurocode concentric braced frame structure, considering nonstructural systems with the FEMA P-58 procedure. The breakdown of total repair costs by engineering demand parameter and by fragility group is novel. The seismic performance assessment indicated that substantial earthquake repair costs are expected. Limitations of the Eurocode nonstructural damage methodology were revealed in a novel manner using FEMA P-58, as the prescribed drift limits did not minimize nonstructural repair costs. These findings demonstrate the need for design procedures that improve nonstructural seismic performance. The study results provide a benchmark on which to evaluate retrofit alternatives for existing buildings and design options for new structures.
spellingShingle Del Gobbo, G
Williams, M
Blakeborough, A
Seismic performance assessment of a conventional multi-storey building
title Seismic performance assessment of a conventional multi-storey building
title_full Seismic performance assessment of a conventional multi-storey building
title_fullStr Seismic performance assessment of a conventional multi-storey building
title_full_unstemmed Seismic performance assessment of a conventional multi-storey building
title_short Seismic performance assessment of a conventional multi-storey building
title_sort seismic performance assessment of a conventional multi storey building
work_keys_str_mv AT delgobbog seismicperformanceassessmentofaconventionalmultistoreybuilding
AT williamsm seismicperformanceassessmentofaconventionalmultistoreybuilding
AT blakeborougha seismicperformanceassessmentofaconventionalmultistoreybuilding