Dynamic characteristics of base-isolated steel frame under seismic ground motion

Mohammad Saeed Masoomi, Siti Aminah Osman, Ali Jahanshahi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the performance of base-isolated steel structures under the seismic load. The main goals of this study are to evaluate the effectiveness of base isolation systems for steel structures against earthquake loads; to verify the modal analysis of steel frame compared with the hand calculation results; and development of a simulating method for base-isolated structure's responses. Two models were considered in this study, one a steel structure with base-isolated and the other without base-isolated system. The nonlinear time-history analysis of both structures under El Centro 1940 seismic ground motion was used based on finite element method through SAP2000. The mentioned frames were analyzed by Eigenvalue method for linear analysis and Ritz-vector method for nonlinear analysis. Simulation results were presented as time-acceleration graphs for each story, period and frequency of both structures for the first three modes.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages2341-2344
Number of pages4
Volume255-260
DOIs
Publication statusPublished - 2011
Event2011 International Conference on Civil Engineering and Building Materials, CEBM 2011 - Kunming
Duration: 29 Jul 201131 Jul 2011

Publication series

NameAdvanced Materials Research
Volume255-260
ISSN (Print)10226680

Other

Other2011 International Conference on Civil Engineering and Building Materials, CEBM 2011
CityKunming
Period29/7/1131/7/11

Fingerprint

Steel structures
Steel
Nonlinear analysis
Modal analysis
Earthquakes
Finite element method

Keywords

  • Earthquake load
  • Nonlinear time-history analysis
  • Ritz-vector analysis
  • Rubber base isolator
  • Steel structure

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Masoomi, M. S., Osman, S. A., & Jahanshahi, A. (2011). Dynamic characteristics of base-isolated steel frame under seismic ground motion. In Advanced Materials Research (Vol. 255-260, pp. 2341-2344). (Advanced Materials Research; Vol. 255-260). https://doi.org/10.4028/www.scientific.net/AMR.255-260.2341

Dynamic characteristics of base-isolated steel frame under seismic ground motion. / Masoomi, Mohammad Saeed; Osman, Siti Aminah; Jahanshahi, Ali.

Advanced Materials Research. Vol. 255-260 2011. p. 2341-2344 (Advanced Materials Research; Vol. 255-260).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Masoomi, MS, Osman, SA & Jahanshahi, A 2011, Dynamic characteristics of base-isolated steel frame under seismic ground motion. in Advanced Materials Research. vol. 255-260, Advanced Materials Research, vol. 255-260, pp. 2341-2344, 2011 International Conference on Civil Engineering and Building Materials, CEBM 2011, Kunming, 29/7/11. https://doi.org/10.4028/www.scientific.net/AMR.255-260.2341
Masoomi MS, Osman SA, Jahanshahi A. Dynamic characteristics of base-isolated steel frame under seismic ground motion. In Advanced Materials Research. Vol. 255-260. 2011. p. 2341-2344. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.255-260.2341
Masoomi, Mohammad Saeed ; Osman, Siti Aminah ; Jahanshahi, Ali. / Dynamic characteristics of base-isolated steel frame under seismic ground motion. Advanced Materials Research. Vol. 255-260 2011. pp. 2341-2344 (Advanced Materials Research).
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