Working Paper Article Version 1 This version is not peer-reviewed

Reliability of Seismic Performance Assessments for Individual Buildings and Portfolios

Version 1 : Received: 14 May 2021 / Approved: 14 May 2021 / Online: 14 May 2021 (13:46:04 CEST)

How to cite: Thiel Jr., C.C.; Zsutty, T.C.; Lee, Y.J. Reliability of Seismic Performance Assessments for Individual Buildings and Portfolios. Preprints 2021, 2021050336 Thiel Jr., C.C.; Zsutty, T.C.; Lee, Y.J. Reliability of Seismic Performance Assessments for Individual Buildings and Portfolios. Preprints 2021, 2021050336

Abstract

Abstract: Seismic performance and loss assessments can have widely varying degrees of uncertainty. An essential issue is whether a particular assessed seismic loss or performance result has sufficient reliability to serve as the basis for risk management decisions and actions, including whether or not a code prescribed performance level is met, or if an assessed loss level is acceptable. A method is developed measuring the reliability of performance and loss assessments for individual buildings and for portfolios. Consideration is given to how well the building investigation and corresponding evaluation process have been performed, the qualifications of the person(s) doing the assessment, the thoroughness of the evaluation, and the technical validity of the assessment procedure or model. The approach characterizes the uncertainty of each component of the assessment procedure for each building in qualitative terms. The resulting reliability measure is likely to be most useful for the cases where an entity is determining whether/or not a building has acceptable life safety performance, or if a portfolio has an acceptably low risk of seismic damage loss over a given period of time. In both cases, the reliability must either be sufficient to warrant action, or serve to indicate need for improved assessment.

Subject Areas

Reliability; Earthquake damageability; Structural evaluation; Safety; Financial risk; MC simulation

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