000019402 001__ 19402
000019402 005__ 20170118182317.0
000019402 04107 $$aeng
000019402 046__ $$k2017-01-09
000019402 100__ $$aJaimes, Miguel A.
000019402 24500 $$aCost-Benefit Analysis To Assess Seismic Mitigation Options, Case Study: Public Mexican Schools Buildings

000019402 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019402 260__ $$b
000019402 506__ $$arestricted
000019402 520__ $$2eng$$aThis paper presents a methodology to perform a cost-benefit analysis to assess possible options such as retrofitting or reconstruction of structures focused on mitigation of direct physical losses due to seismic actions. The case of all public school buildings located in Mexico City is presented as an illustrative example, using as decision variable the expected annual loss (EAL) and probable maximum loss (PML). The proposed methodology is comprised of the following steps: 1) Gathering of design information of typical school buildings designed according to different past seismic codes of the region. 2) Proposal of seismic mitigation actions such as retrofitting or stiffening of the structural system in order to comply with the current Mexico City seismic design code (RCDF-2004). 3) Calculation of vulnerability functions by carrying out nonlinear Incremental Dynamic Analyses (IDA) for the original designed structural systems and those modified according to the performed mitigation actions. 4) Probabilistic seismic risk analysis taking into account all locations of public school buildings in Mexico City. 5) Cost-benefit analysis assuming two different cases: a) retrofitting and/or stiffening the structural system and b) demolish and reconstruct a completely new school building. This analysis is carried out at two different levels: 1) definition of vulnerability functions of structures considering the two mitigation actions and comparison between them, and b) combination of the different mitigation alternatives in order to determine, the number and location of schools that required mitigation actions assuming that economical resources is limited, by means of the estimated EAL and PML. It is shown the utility of carrying out a cost-benefit analysis by computing in a formal way the seismic risk to formulate and define mitigation strategies that allow decision-maker prioritize the use of the economic resources. The benefit of this approach is that the obtained results will be presented in a way that may be easier to communicate to decision-makers even if they are not familiar with formal risk studies.

000019402 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019402 653__ $$aCost-benefit analysis, Schools, Site effects, retrofitting, seismic risk

000019402 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019402 720__ $$aJaimes, Miguel A.$$iNiño, Mauro
000019402 8560_ $$ffischerc@itam.cas.cz
000019402 8564_ $$s358794$$uhttps://invenio.itam.cas.cz/record/19402/files/355.pdf$$yOriginal version of the author's contribution as presented on USB, paper 355.
000019402 962__ $$r16048
000019402 980__ $$aPAPER