A SIMPLIFIED METHOD OF EVALUATING THE SEISMIC PERFORMANCE OF BUILDINGS

The seismic design of a structure is performed with the anticipation that a severe earthquake would cause some damage, but that it would be contained to an acceptable limit. The extent of damage sustained by a building determines the level of seismic performance achieved. This article presents a simplified method of evaluating the seismic performance of buildings. The proposed method is based on the transformation of a multiple degree of freedom (MDOF) system to an equivalent single degree of freedom (SDOF) system using a simple and intuitive process. The author notes that their proposed method is intended for evaluating the seismic performance of the buildings at the intermediate stages in design, while a rigorous method would be applied to the final design. The author reports on the use of this model in a series of buildings which are assumed to be located in Victoria in western Canada, and designed based on the upcoming version of the National Building Code of Canada which is due to be published in 2005. To resist lateral loads, some of these buildings contain reinforced concrete moment resisting frames, while others contain reinforced concrete shear walls. Each building model was subjected to a set of site-specific seismic spectrum compatible ground motion records, and the response was determined using the proposed method and the general method for MDOF systems. The results from this study indicate that the proposed method can serve as a useful tool for evaluation of seismic performance of buildings, and carrying out performance based design. The author concludes that this type of simplified analysis could form an important intermediate step in the earthquake resistant design of buildings. They stress that a detailed MDOF analysis must still be carried out in the final stage of design for estimating the seismic response more accurately.

  • Availability:
  • Corporate Authors:

    Science Press

    Beijing 100707,   China 
  • Authors:
    • Bagchi, Ashutosh
  • Publication Date: 2004-12

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00989056
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 2 2005 12:00AM