A macro-element model for inelastic building analysis

de la Llera, JC; Vasquez, J; Chopra, AK; Almazan, JL

Abstract

A three-dimensional model for approximate inelastic analysis of buildings is presented herein. The model is based on a single macro-element per building storey. The inelastic properties of the model are characterized by the so-called ultimate storey shear and torque (USST) surfaces. Different algorithms for the construction of these surfaces, as well as their applications in building modelling, are presented and discussed. Two alternative procedures are developed to integrate the force-deformation constitutive relationship of the macroelements. The first one follows the exact trajectory of the load path of the structure on the USST, and the second uses linear programming without ever forming the USST surface. The accuracy of the model and integration procedure is evaluated by means of the earthquake response of single-storey systems. The model and integration procedure developed is finally used to compute the inelastic response of a seven-storey R/C building. The results of this investigation show that the model proposed, although approximate, can be effective in estimating the inelastic deformation demand of a building. It also enables the engineer to capture and interpret important features of the three-dimensional inelastic response of a structure even before performing any inelastic dynamic analysis. Copyright (C) 2000 John Wiley & Sons, Ltd.

Más información

Título según WOS: A macro-element model for inelastic building analysis
Título según SCOPUS: A macro-element model for inelastic building analysis
Título de la Revista: EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
Volumen: 29
Número: 12
Editorial: Wiley
Fecha de publicación: 2000
Página de inicio: 1725
Página final: 1757
Idioma: English
URL: http://doi.wiley.com/10.1002/1096-9845%28200012%2929%3A12%3C1725%3A%3AAID-EQE982%3E3.3.CO%3B2-W
DOI:

10.1002/1096-9845(200012)29:12<1725::AID-EQE982>3.3.CO;2-W

Notas: ISI, SCOPUS