Inelastic Analysis of Mdof Systems Damaged by Earthquakes, Posteriorly Subjected to Wind Load

Abstract

This paper deals with the analysis of the inelastic response of buildings originally damaged by earthquakes and subjected to earthquake aftershock and wind loading. The overall aim is to establish the effect of wind actions on structural stability. To that end, one four-story bare frame benchmarked by the European Laboratory for Structural Assessment, is subject to various levels of winds and earthquake joint load while monitoring changes on the ductility demand. In this paper is shown that the combined action of strong winds and earthquakes, however its low probability of occurrence, would cause a decrease of strength reduction factors and considerably increase the ductility demand of damaged infrastructure hence inducing additional risks that would otherwise remain unquantified. The paper examines the non-linear performance of Multi-degree of freedom systems subject to various levels of winds and earthquake load and deals with the estimation of strength reduction factors. This is a relatively unexplored area of research which builds on past developments whereby inelastic performance of buildings has been discussed. It also links to various other paths of development such as structural reliability, forensic and control systems engineering. Doi: 10.28991/cej-2021-03091675 Full Text: PDF

Seismic Assessment of Steel Frames Subjected to Multi-hazards

“…The present study created a wind recording database based on the simulation method reported in [29,30] and on the proposed in The database was previously used to study the inelastic analysis of multi-degree of freedom systems damaged by earthquakes posteriorly subjected to wind load [19]. The cross-spectral density of the turbulent fluctuation is taken into account in the simulation of the wind field.…”

“…This paper investigates the seismic response and the effects of the downburst outflow wind at mean speeds ranging between 33m/s and 75m/s on the ductility of damaged buildings. The proposed methodology combines the principles of nonlinear static adaptive pushover analysis [16], which aims to reproduce the damage caused by the primary hazard event, and the sequential dynamic analysis [17][18][19][20][21][22][23], aiming to estimate the damage caused by the secondary sequential thunderstorm event.…”

Seismic Performance of Staircases in the 3D Analysis of RC Building

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Numerical Study on Natural Ventilation Characteristics of a Partial-Cylinder Opening for One-Sided-Windcatcher of Variable Air-Feeding Orientations in Taif, Saudi Arabia

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