Evaluation Of Economic Loss For Structures
In The Area Struck By The 7/9/1999 Athens
Earthquake And Comparison With Actual
Repair Costs
Author(s)
V. A. Lekidis, Ch. Z. Karakostas, I. I. Sous, A. Anastasiadis,
A. Kappos & G. Panagopoulos
Abstract
Reliable loss assessment (in monetary terms) for buildings struck by an
earthquake is an essential factor in the development of seismic risk scenarios for
a given urban area. The evaluation of the seismic risk for a certain region
depends both on the seismic hazard and the vulnerability of the building stock in
the area. For the evaluation of building vulnerability, a hybrid methodology was
recently proposed for the estimation of vulnerability (fragility) curves and the
corresponding damage probability matrices. The methodology is applied here to
the municipality of Ano Liosia, in the meisoseismal area of the Athens, Greece
earthquake of 7/9/1999, for both reinforced concrete (R/C) and unreinforced
masonry (URM) buildings. An in-situ survey of 150 building blocks was
performed, and data regarding the structural type, actual earthquake damage and
corresponding repair costs were collected. The actual repair cost for the area was
compared with the economic loss estimation obtained using the hybrid
methodology and various estimates of the seismic action in the area considered.
The analytical economic loss assessment was found to agree, to a satisfactory
degree, with the actual repair costs, for certain seismic hazard scenarios.
Keywords: seismic risk scenarios, loss assessment, vulnerability of buildings,
fragility curves, damage probability matrices.
Keywords
seismic risk scenarios, loss assessment, vulnerability of buildings,
fragility curves, damage probability matrices.
Related Book
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