Comparison of Adaptive and non-AdaptiveNonlinear Static Analysis Methods for Estimating Seismic Demand

Authors

  • Maysaa Mohamad AL-ARAB PHD student of Seismic Structural Engineering Department, Higher Institute of Earthquake Studies & Research - University of Damascus, Syria Author
  • Hala HASAN Professor at Structural Earthquake Engineering Department -Higher Institute of Earthquake Studies and Research (HIESR) – University of Damascus , Syria Author

Keywords:

Pushover Analysis, Modal Pushover Analysis, Adaptive Displacement-Based Pushover, Non-Adaptive Displacement-Based Pushover, Consecutive Modal Pushover.

Abstract

In this paper, we review several pushover analysis methods to illustrate the enhancements and refinements of the pushover analysis. In addition, how

researcher could develop the procedures to overcome the disadvantages of the traditional pushover procedure. The traditional lateral analysis method has been developed to consider the contribution of higher modes as well as the change in the dynamic properties of structures after entering the nonlinearity and formation the hinges. We will study two structures of steel and others of reinforced concrete via the conventional method using first mode, modal pushover analysis (MPA), multi-mode adaptive displacement-based pushover (MADP), consecutive modal pushover (CMP) and non-adaptive displacement-based pushover (NADP) and then compare the results with nonlinear response history analysis to determine which of these methods is the most accurate. The result of the study shows that the MADP method gives the best estimate of the story drift than the rest of the methods compared to the nonlinear dynamic analysis, because it considers the higher modes effect and dynamic characteristics change of the model after entering the nonlinearity.

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Author Biographies

  • Maysaa Mohamad AL-ARAB, PHD student of Seismic Structural Engineering Department, Higher Institute of Earthquake Studies & Research - University of Damascus, Syria

    PHD student of Seismic Structural Engineering Department, Higher Institute of Earthquake Studies & Research - University of Damascus, SyriaPHD student of Seismic Structural Engineering Department, Higher Institute of Earthquake Studies & Research - University of Damascus, Syria

  • Hala HASAN, Professor at Structural Earthquake Engineering Department -Higher Institute of Earthquake Studies and Research (HIESR) – University of Damascus , Syria

    Professor at Structural Earthquake Engineering Department -Higher Institute of Earthquake Studies and Research (HIESR) – University of Damascus , Syria 

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Published

2025-04-28

Issue

Vol. 1 No. 2 (2024): Damascus University Journal of Earthquake and Disaster Research

Section

المقالات