Second-order inelastic dynamic analysis of 3D semi-rigid steel frames under earthquake loads with three components

Kadir Ozakgul*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, it has been presented an algorithm for second-order elastoplastic dynamic time-history analysis of three dimensional frames that have steel members with semirigid joints. The proposed analysis accounts for material, geometric and connection nonlinearities. Material nonlinearity have been modeled by the Ramberg-Osgood relation. While the geometric nonlinearity caused by axial force has been described by the use of the geometric stiffness matrix, the nonlinearity caused by the interaction between the axial force and bending moment has been also described by the use of the stability functions. The independent hardening model has been used to describe the nonlinear behaviour of semi-rigid connections. Dynamic equation of motion has been solved by Newmark's constant acceleration method in time history domain.

Original languageEnglish
Title of host publication2008 Seismic Engineering Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake
Pages1069-1076
Number of pages8
EditionPART 1
DOIs
Publication statusPublished - 2008
Event2008 Seismic Engineering International Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake, MERCEA 2008 - Reggio Calabria, Italy
Duration: 8 Jul 200811 Jul 2008

Publication series

NameAIP Conference Proceedings
NumberPART 1
Volume1020
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2008 Seismic Engineering International Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake, MERCEA 2008
Country/TerritoryItaly
CityReggio Calabria
Period8/07/0811/07/08

Keywords

  • independent hardening model
  • Ramberg-Osgood
  • semi-rigid connection
  • stability functions

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