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Modeling of inelastic mixed hinge and its application in analysis of the frames with reduced beam section

Kazemi, M. T ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1007/S13296-011-1005-7
  3. Publisher: 2011
  4. Abstract:
  5. This paper represents new development of a previously introduced mixed shear-flexural (VM) link element, and its application in inelastic analysis of frames with reduced beam sections. The multi-surfaces concept with dissimilar yield surfaces is used in definition of link element. The yield surfaces are defined in deformation space and the element has the capability of modeling interactive axial-flexural-shear yielding. It is able to consider post yield softening behavior as well as flexibility and strength degradations. It is shown that the analysis results of the new mixed axial-shear-flexural (PVM) link have good agreement with the existing experimental and finite element results. Using the PVM link element, nonlinear dynamic analyses are performed on a benchmark intermediate moment frame and its improved versions with reduced beam section (RBS) and reduced web beam section (RWS). The results show that the use of RWS connections, can considerably improve the seismic performance of the steel frames, at least, as much as RBS
  6. Keywords:
  7. Multi-surface yield surface ; Damage ; Multi-surface ; Reduced beam section (RBS) ; Shear-flexural interaction ; Softening ; User interfaces ; Finite element method
  8. Source: International Journal of Steel Structures ; Volume 11, Issue 1 , 2011 , Pages 51-63 ; 15982351 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2FS13296-011-1005-7