%0 Journal Article
%T Evaluation de la vuln¨¦rabilit¨¦ sismique des constructions en b¨¦ton arm¨¦ en vue de leur r¨¦habilitation Evaluating seismic vulnerability of reinforced concrete buildings in view of their rehabilitation
%A El Haouzi A.
%A Khamlichi A.
%A Bezzazi M.
%A Almansa F. Lopez
%J MATEC Web of Conferences
%D 2012
%I 
%R 10.1051/matecconf/20120202003
%X Dans ce travail, une m¨¦thodologie simplifi¨¦e a ¨¦t¨¦ propos¨¦e afin d¡¯¨¦valuer la vuln¨¦rabilit¨¦ sismique des batiments en b¨¦ton arm¨¦. La d¨¦marche s¡¯appuie sur une surface de r¨¦ponse obtenue ¨¤ partir de calculs pushover du batiment. L¡¯analyse pushover a ¨¦t¨¦ effectu¨¦e sous le logiciel ZeusNL. Une ¨¦tude de cas a ¨¦t¨¦ r¨¦alis¨¦e sur un batiment type en utilisant un plan d¡¯exp¨¦rience factoriel complet construit sur les trois param¨¨tres de conception comprenant la r¨¦sistance caract¨¦ristique du b¨¦ton, la section moyenne de b¨¦ton des poteaux et poutres et leurs armatures longitudinales. L¡¯analyse de variance effectu¨¦e sur les r¨¦sultats obtenus a permis de d¨¦terminer l¡¯effet de chaque param¨¨tre sur la performance sismique du batiment. Les r¨¦sultats ont montr¨¦ que la section moyenne des coffrages et leurs ferraillages contr lent de mani¨¨re pr¨¦pond¨¦rante la capacit¨¦ sismique du batiment vis-¨¤-vis des ¨¦tats limites consid¨¦r¨¦s. L¡¯optimisation de la r¨¦habilitation sismique a ¨¦t¨¦ alors propos¨¦e. In this work, a simplified methodology was proposed in order to evaluate seismic vulnerability of reinforced concrete buildings. The approach is founded on response surface obtained through pushover calculations of the building. Pushover analysis was performed under ZeusNL software. A case study was carried out on a typical building by using full factorial design of experiment table constructed on the three design parameters that include concrete resistance, the average concrete section of beams and columns and their longitudinal reinforcements. Analysis of variance performed on the obtained results enabled determining the effect of each parameter on seismic performance of the building. It was shown that concrete average section and reinforcements control preponderantly seismic capacity of the building with regards to the considered limit states. Optimisation of seismic rehabilitation was then proposed.
%U http://dx.doi.org/10.1051/matecconf/20120202003