Computational Methods in Earthquake Engineering pp 545-568

Part of the Computational Methods in Applied Sciences book series (COMPUTMETHODS, volume 30) | Cite as

Optimal Design of RC Frames Using Nonlinear Inelastic Analysis

Abstract

Recent earthquakes, especially those in Chile (2010) and Christchurch (2011), have demonstrated the unexpected performance of buildings designed according modern seismic design codes. These incidents strengthen the cause for moving towards performance-based design codes rather than serviceability and strength design. This chapter deals with optimal design of RC frames, a widely used structural type around the world, considering both the initial cost and structural performance as problem objectives. Initial cost comprises the total cost of materials and workmanship for structural components, while structural performance is measured by a two-level approach. First, each design is checked for acceptability according to existing codes, and next performance is quantified in terms of maximum interstory drift obtained from nonlinear inelastic dynamic analysis. This multi-objective, multi-level approach allows one to investigate the implications of the selection of design parameters on the seismic performance while minimizing the initial cost and satisfying the design criteria. The results suggest that structural performance varies significantly within the acceptable limits of design codes and lower initial cost could be achieved for similar structural performance.

Keywords

Reinforced concrete Inelastic dynamic analysis Structural optimization Taboo search Pareto front 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringUniversity of HoustonHoustonUSA
  2. 2.Department of Civil and Environmental EngineeringUniversity of HoustonHoustonUSA

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