An integrated earthquake vulnerability assessment framework for urban areas

2011-11-01
Duzgun, H. S. B.
Yücemen, Mehmet Semih
Kalaycıoğlu, Hediye Sibel
ÇELİK, KEZBAN
Kemec, S.
Ertugay, K.
Deniz, A.
In this paper, an integrated urban earthquake vulnerability assessment framework, which considers vulnerability of urban environment in a holistic manner and performs the vulnerability assessment for the neighborhood scale, is proposed. The main motivation behind this approach is the inability to implement existing vulnerability assessment methodologies for countries like Turkey, where the required data are usually missing or inadequate for the decision-makers in prioritization their limited resources for risk reduction in the administrative units from which they are responsible for. The methodology integrates socio-economical, structural, coastal, ground condition, vulnerabilities (fragilities), as well as accessibility to critical services. The proposed methodology is implemented for Eskisehir, which is one of the metropolitans of Turkey. In the implementation of the proposed framework, geographic information system (GIS) is used. While the overall vulnerabilities obtained for neighborhoods are mapped in GIS, the overall vulnerabilities obtained for buildings are visualized in 3D city model. The main reason behind using different mapping and visualization tools for vulnerabilities is to provide better ways for communicating with decision-makers. The implementation of the proposed vulnerability assessment methodology indicates that an urban area may have different vulnerability patterns in terms of structural, socio-economical, and accessibility to critical services. When such patterns are investigated, effective vulnerability reduction policies can be designed by the decision-makers. The proposed methodology well serves for this purpose.
NATURAL HAZARDS

Suggestions

A Methodology for Seismic Loss Estimation in Urban Regions Based on Ground-Motion Simulations
Ugurhan, Beliz; Askan Gündoğan, Ayşegül; Erberik, Murat Altuğ (2011-04-01)
Seismic vulnerability assessment of residential buildings in regions of high seismicity is an interdisciplinary problem requiring major inputs from fields of seismology and earthquake engineering. The basic two components of loss estimation methods are information on regional seismicity and building stock. This study presents a realistic loss estimation methodology where the first component, input ground motions, is obtained from regional ground-motion simulations using the stochastic finite-fault technique...
An integrated seismic hazard framework for liquefaction triggering assessment of earthfill dams' foundation soils
Ünsal Oral, Sevinç; Çetin, Kemal Önder; Department of Civil Engineering (2009)
Within the confines of this study, seismic soil liquefaction triggering potential of a dam foundation is assessed within an integrated probabilistic seismic hazard assessment framework. More specifically, the scheme presented hereby directly integrates effective stress-based seismic soil liquefaction triggering assessment with seismic hazard analysis framework, supported by an illustrative case. The proposed methodology successively, i) processes the discrete stages of probabilistic seismic hazard workflow ...
A Predictive model for maximum interstory drift ratio (MIDR) and its implementation in probability-based design and performance assessment procedures g
Eroğlu Azak, Tuba; Akkar, Sinan; Department of Civil Engineering (2013)
Estimating nonlinear deformation demands is important for the implementation of rational seismic design and assessment methodologies to ensure the safe and reliable response of existing and new buildings against seismic action. The nonlinear deformation demand estimations should consider the variability inground motions as well as the uncertainties involved in structural response. This study presents probability-based seismic design and assessment procedures for code-confirming low- and mid-rise reinforced ...
A Methodology for Optimal Layout Design of Pressure Cells for Concrete Faced Rockfill Dams
Arı, Onur; Yanmaz, Ali Melih (Springer Science and Business Media LLC, 2018-08-01)
In this study, a methodology for optimal layout design of pressure cells for concrete faced rockfill dams is developed. A representative dimensionless stress distribution model was formed for obtaining the magnitudes and location of different stress zones as a function of dam height. This information enabled development of a procedure for proper location and the number of pressure cells throughout the dam body. A vertical placement algorithm based on error minimization was first developed, which is followed...
A Quantitative Approach for Rapid Seismic Vulnerability Assessment of Steel Highway Bridges
Dicleli, Murat (1997-01-01)
While methodologies exist which allow to rapidly identify the seismically deficient bridges and rank them in terms of their respective vulnerability, it remains that the bridge vulnerability aspect of these methodologies is crude and generally limited to simple recognition of undesirable structural features known to have performed inadequately in past earthquakes. Thus, bridges sharing such features would also share the same rating, independently of variations in geometry and other structural properties. As...
Citation Formats
H. S. B. Duzgun et al., “An integrated earthquake vulnerability assessment framework for urban areas,” NATURAL HAZARDS, pp. 917–947, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30580.