• Title/Summary/Keyword: panel-zone, near-field

Search Result 1, Processing Time 0.015 seconds

Effects of pulse-like nature of forward directivity ground motions on the seismic behavior of steel moment frames

  • Mansouri, Iman;Shahbazi, Shahrokh;Hu, Jong Wan;Moghaddam, Salar Arian
    • Earthquakes and Structures
    • /
    • v.17 no.1
    • /
    • pp.1-15
    • /
    • 2019
  • In the structures with high level of ductility, the earthquake energy dissipation in structural components is an important factor that describes their seismic behavior. Since the connection details play a major role in the ductile behavior of structure, in this paper, the seismic response of 3-, 5- and 8-story steel special moment frames (SMFs) is investigated by considering the effects of panel zone modeling and the influence of forward-directivity near-field ground motions. To provide a reasonable comparison, selected records of both near and far-field are used in the nonlinear time-history analysis of models. The results of the comparison of the median maximum inter-story drift under excitation by near-field (NF) records and the far-field (FF) ground motions show that the inter-story drift demands can be obtained 3.47, 4.86 and 5.92 times in 3-, 5- and 8-story structures, respectively, undergoing near-field earthquakes.