Comparative Loss Assessment of a Steel Hospital using Multiresolution Numerical Models

Abstract

Earthquakes are one of the most devastating natural hazards that influence the well-being of communities. The ability of communities to recover from extreme events depend primarily on the condition of its infrastructure. Understanding damage to critical infrastructure, with occupancy category VI, following different levels of earthquake events is particularly vital to recovery and continued functioning of societies. Numerical finite element simulations are considered a reliable tool for response assessment of structures under earthquake loading. When developing finite elements models, various geometrical and behavioral assumptions are typically made to simplify the modeling approach and to save on computational cost. However, the effect of these assumptions on analysis results could be substantial and could significantly alter the decisionmaking process in terms of design, assessment, or retrofit of the structure considered. Moreover, the inclusion or the exclusion of soil-foundation-structure interaction could have substantial effect on the results. In this study, the seismic response of a six-story hospital building with buckling restrained braces located in Memphis, USA, is evaluated. Differe nt numerical finite element simulations for the hospital building are presented to evaluate the effect of modeling resolution on building response. Various nonlinear features are considered in the simulations including realistic hysteresis behavior of the connections, buckling-restra int braces, and soil-structure interaction. Both 2D and 3D numerical models are used to highlight the differences in the results. The effect of modeling resolution on the building fragilities for both structural and non-structural components are also presented for each of the investigated model.

Department(s)

Civil, Architectural and Environmental Engineering

International Standard Book Number (ISBN)

978-151087325-4

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Proceedings.com, All rights reserved.

Publication Date

01 Jan 2018

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