PUSHOVER ANALYSIS OF ISOLATED FLEXURAL REINFORCED CONCRETE WALLS

The application of static pushover analyses for seismic evaluation of isolated flexural walls is investigated. The objective is to verify the adequacy of the uniform and modal lateral load patterns in predicting the inelastic behavior of flexural walls under seismic loads and propose a new nonlinear static procedure which overcomes the limitation of existing pushover procedures. Predictions based on different pushover procedures are compared to results obtained from detailed nonlinear time history analyses. Ground motions corresponding to 2% probability of being exceeded in 50 years for the Los Angeles area are considered in the evaluation. It is shown that traditional pushover analyses, such as those recommended in FEMA-273 (1997), are incapable of reproducing computed behavior using nonlinear time-history evaluations and that the new pushover procedure represents a significant improvement in current analytical capabilities of nonlinear static methods to predict nonlinear behavior of structural walls under seismic loads.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 410-414

Subject/Index Terms

Filing Info

  • Accession Number: 00778254
  • Record Type: Publication
  • ISBN: 0784404216
  • Files: TRIS
  • Created Date: Oct 30 1999 12:00AM