Detailed Finite Element Analysis of Full-scale Four-story Steel Frame Structure Subjected to Consecutive Ground Motions

Authors

  • Hiroyuki Tagawa Hyogo Earthquake Engineering Research Center, National Research Institute for Earth Science and Disaster Prevention, Miki 673-0515, Japan , Department of Architecture, Mukogawa Women's University, Nishinomiya 663-8121, Japan Author
  • Tomoshi Miyamura Hyogo Earthquake Engineering Research Center, National Research Institute for Earth Science and Disaster Prevention, Miki 673-0515, Japan , Department of Computer Science, College and Engineering, Nihon University, Koriyama 963-8642, Japan Author
  • Takuzo Yamashita Hyogo Earthquake Engineering Research Center, National Research Institute for Earth Science and Disaster Prevention, Miki 673-0515, Japan Author
  • Masayuki Kohiyama Department of System Design Engineering, Faculty of Science and Technology, Keio University, Yokohama 223-8522, Japan Author
  • Makoto Ohsaki Department of Architecture, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8511, Japan Author

Keywords:

Finite Element Analysis, Seismic Response, Collapse, Consecutive Excitation, E-Simulator

Abstract

Detailed finite element (FE) analyses of a full-scale four-story steel frame structure, subjected to consecutive 60% and 100% excitations from the JR Takatori records during the 1995 Hyogoken-Nanbu earthquake, are conducted using E-Simulator. The four-story frame was tested at the largest shake-table facility in the world, E-Defense, in 2007. E-Simulator is a parallel FE analysis software package developed to accurately simulate structural behavior up to collapse by using a fine mesh of solid elements. To reduce computational time in consecutive dynamic time history analyses, static analysis with gravity force is introduced to terminate the vibration of the structure during the analysis of 60% excitation. An overall sway mechanism when subjected to 60% excitation and a story mechanism resulting from local buckling of the first-story columns when subjected to 100% excitation are simulated by using E-Simulator. The story drift response to the consecutive 60% and 100% excitations is slightly smaller than that for the single 100% excitation.

Published

2015-03-31

Issue

Vol. 4 No. 1 (2015)

Section

Articles