PLAN IRREGULAR RC FRAMES: COMPARISON OF PUSHOVER WITH NONLINEAR DYNAMIC ANALYSIS

In this paper, the seismic behavior of three intermediate moment-resisting concrete space frames with unsymmetrical plan in five, seven and ten stories are evaluated by using pushover analysis. In each of these frames, both projections of the structure beyond a reentrant corner are greater than 33 percent of the plan dimension of the structure in the given direction. The performance of these buildings has been investigated using the pushover analysis. Results have been compared with those obtained from non-linear dynamic analysis.

[1]  Rita Bento,et al.  ASSESSING THE 3D IRREGULAR SPEAR BUILDING WITH NONLINEAR STATIC PROCEDURES , 2008 .

[2]  Mehdi Saiidi,et al.  SIMPLE NONLINEAR SEISMIC ANALYSIS OF R/C STRUCTURES , 1981 .

[3]  R. Pugliesi,et al.  ASSESSMENT OF MODAL PUSHOVER ANALYSIS PROCEDURE AND ITS APPLICATION TO SEISMIC EVALUATION OF EXISTING BUILDINGS , 2002 .

[4]  Anil K. Chopra,et al.  A modal pushover analysis procedure to estimate seismic demands for unsymmetric‐plan buildings , 2004 .

[5]  Jack P. Moehle,et al.  "BUILDING CODE REQUIREMENTS FOR STRUCTURAL CONCRETE (ACI 318-11) AND COMMENTARY" , 2011 .

[6]  Spyridon Themelis,et al.  Pushover analysis for seismic assessment and design of structures , 2008 .

[7]  M. Fardis,et al.  Designer's guide to EN 1998-1 and en 1998-5 Eurocode 8: Design of structures for earthquake resistance; general rules, seismic actions, design rules for buildings, foundations and retaining structures/ M.Fardis[et al.] , 2005 .

[8]  Sashi K. Kunnath,et al.  Adaptive Modal Combination Procedure for Nonlinear Static Analysis of Building Structures , 2006 .

[9]  Iztok Peruš,et al.  TORSIONAL EFFECTS IN THE PUSHOVER-BASED SEISMIC ANALYSIS OF BUILDINGS , 2005 .

[10]  Gregory G. Deierlein,et al.  NEHRP Seismic Design Technical Brief No. 4 - Nonlinear Structural Analysis for Seismic Design: A Guide for Practicing Engineers | NIST , 2010 .

[11]  Raúl González Herrera,et al.  INFLUENCE OF PLAN IRREGULARITY OF BUILDINGS , 2008 .

[12]  Angelo D'Ambrisi,et al.  Seismic performance of irregular 3D RC frames , 2008 .

[13]  Marco Mezzi,et al.  DEFINITION OF SUITABLE BILINEAR PUSHOVER CURVES IN NONLINEAR STATIC ANALYSES , 2002 .

[14]  Anil K. Chopra,et al.  A modal pushover analysis procedure for estimating seismic demands for buildings , 2002 .