Proceedings of the Earthquake Engineering Society of Korea Conference (한국지진공학회:학술대회논문집)
- 2002.09a
- /
- Pages.266-273
- /
- 2002
Application of Modal Pushover Analysis for Deformation Capacity Evaluation of Steel Moment Frames
철골구조물의 변형능력평가를 위한 MPA 방법의 적용성 검토
Abstract
Pushover analysis is frequently used for evaluation of seismic performance and determination of seismic demand of a building structure in the current structural engineering practice field. However, pushover analysis has a advantage for estimation of seismic demands, which cannot account for the contributions of higher modes to response or for a redistribution of inertia forces because of structural yielding and the associated changes in the vibration properties of the structures. Recently, Chopra and Coel(2001) derived uncoupled inelastic dynamic equation of motion with several assumptions in the pushover analysis. By using this approach, pushover analysis for each mode is carried out and modal pushover analysis method, which can consider higher mode effects of the building, was suggested. The principle objective of this study is to introduced the modal pushover analysis by Chopra et al.(2001) and investigated the applicability and validity of this method for the steel moment frames subjected to various earthquake ground motions.
Keywords