Displacement-based earthquake loss assessment for an earthquake scenario in Istanbul

I. E. Bal, H. Crowley, R. Pinho

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

DBELA is a Displacement-Based Earthquake Loss Assessment methodology for urban areas which relates the displacement capacity of the building stock to the displacement demand from earthquake scenarios. The building stock is modeled as a random population of building classes with varying geometrical and material properties. The period of vibration of each building in the random population is calculated using a simplified equation based on the height of the building and building type, whilst the displacement capacity at different limit states is predicted using simple equations which are a function of the randomly simulated geometrical and material properties. The displacement capacity of each building is then compared to the displacement demand obtained, from an over-damped displacement spectrum, using its period of vibration; the proportion of buildings which exceed each damage state can thus be estimated. DBELA has been calibrated to the Turkish building stock following the collection of a large database of structural characteristics of buildings from the northern Marmara region. The probabilistic distributions for each of the structural characteristics (e.g. story height, steel properties etc.) have been defined using the aforementioned database. The methodology has then been applied to predict preliminary damage distributions and social losses for the Istanbul Metropolitan Municipality for a Mw 7.5 scenario earthquake.
Original languageEnglish
Pages (from-to)12-22
JournalJournal of Earthquake Engineering
Volume12
Issue numberS2
DOIs
Publication statusPublished - 2008

Keywords

  • damage prediction
  • displacement-based assessment
  • istanbul
  • social losses
  • urban areas
  • earthquakes

Cite this

@article{6ef3181ca5c1452eb261cc38668aa597,
title = "Displacement-based earthquake loss assessment for an earthquake scenario in Istanbul",
abstract = "DBELA is a Displacement-Based Earthquake Loss Assessment methodology for urban areas which relates the displacement capacity of the building stock to the displacement demand from earthquake scenarios. The building stock is modeled as a random population of building classes with varying geometrical and material properties. The period of vibration of each building in the random population is calculated using a simplified equation based on the height of the building and building type, whilst the displacement capacity at different limit states is predicted using simple equations which are a function of the randomly simulated geometrical and material properties. The displacement capacity of each building is then compared to the displacement demand obtained, from an over-damped displacement spectrum, using its period of vibration; the proportion of buildings which exceed each damage state can thus be estimated. DBELA has been calibrated to the Turkish building stock following the collection of a large database of structural characteristics of buildings from the northern Marmara region. The probabilistic distributions for each of the structural characteristics (e.g. story height, steel properties etc.) have been defined using the aforementioned database. The methodology has then been applied to predict preliminary damage distributions and social losses for the Istanbul Metropolitan Municipality for a Mw 7.5 scenario earthquake.",
keywords = "damage prediction, displacement-based assessment, istanbul, social losses, urban areas, earthquakes, aardbevingen, stedelijke gebieden",
author = "Bal, {I. E.} and H. Crowley and R. Pinho",
year = "2008",
doi = "10.1080/13632460802013388",
language = "English",
volume = "12",
pages = "12--22",
journal = "Journal of Earthquake Engineering",
issn = "1363-2469",
publisher = "Imperial College Press",
number = "S2",

}

Displacement-based earthquake loss assessment for an earthquake scenario in Istanbul. / Bal, I. E.; Crowley, H.; Pinho, R.

In: Journal of Earthquake Engineering, Vol. 12, No. S2, 2008, p. 12-22.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Displacement-based earthquake loss assessment for an earthquake scenario in Istanbul

AU - Bal, I. E.

AU - Crowley, H.

AU - Pinho, R.

PY - 2008

Y1 - 2008

N2 - DBELA is a Displacement-Based Earthquake Loss Assessment methodology for urban areas which relates the displacement capacity of the building stock to the displacement demand from earthquake scenarios. The building stock is modeled as a random population of building classes with varying geometrical and material properties. The period of vibration of each building in the random population is calculated using a simplified equation based on the height of the building and building type, whilst the displacement capacity at different limit states is predicted using simple equations which are a function of the randomly simulated geometrical and material properties. The displacement capacity of each building is then compared to the displacement demand obtained, from an over-damped displacement spectrum, using its period of vibration; the proportion of buildings which exceed each damage state can thus be estimated. DBELA has been calibrated to the Turkish building stock following the collection of a large database of structural characteristics of buildings from the northern Marmara region. The probabilistic distributions for each of the structural characteristics (e.g. story height, steel properties etc.) have been defined using the aforementioned database. The methodology has then been applied to predict preliminary damage distributions and social losses for the Istanbul Metropolitan Municipality for a Mw 7.5 scenario earthquake.

AB - DBELA is a Displacement-Based Earthquake Loss Assessment methodology for urban areas which relates the displacement capacity of the building stock to the displacement demand from earthquake scenarios. The building stock is modeled as a random population of building classes with varying geometrical and material properties. The period of vibration of each building in the random population is calculated using a simplified equation based on the height of the building and building type, whilst the displacement capacity at different limit states is predicted using simple equations which are a function of the randomly simulated geometrical and material properties. The displacement capacity of each building is then compared to the displacement demand obtained, from an over-damped displacement spectrum, using its period of vibration; the proportion of buildings which exceed each damage state can thus be estimated. DBELA has been calibrated to the Turkish building stock following the collection of a large database of structural characteristics of buildings from the northern Marmara region. The probabilistic distributions for each of the structural characteristics (e.g. story height, steel properties etc.) have been defined using the aforementioned database. The methodology has then been applied to predict preliminary damage distributions and social losses for the Istanbul Metropolitan Municipality for a Mw 7.5 scenario earthquake.

KW - damage prediction

KW - displacement-based assessment

KW - istanbul

KW - social losses

KW - urban areas

KW - earthquakes

KW - aardbevingen

KW - stedelijke gebieden

U2 - 10.1080/13632460802013388

DO - 10.1080/13632460802013388

M3 - Article

VL - 12

SP - 12

EP - 22

JO - Journal of Earthquake Engineering

JF - Journal of Earthquake Engineering

SN - 1363-2469

IS - S2

ER -