Analytical investigation of tension fields effects on plastic moment of intermediate beams in steel plate shear walls

Document Type : Original Article

Authors

1 PhD candidate in Civil Engineering, Tabriz branch, Islamic Azad Unversity, Tabriz, Iran

2 Department of Civil Engineering, Faculty of Technical and Engineering, Islamic Azad University, Tabriz Branch, Tabriz, Iran

Abstract

In this paper Analytical plastic procedures for studying tension fields effects on intermediate beams in steel plate shear walls and estimating the plastic moments of horizontal boundary elements under equal and unequal top and bottom tension fields of SPSWs have been developed and compared with finite element analysis procedure by using ABAQUS software. The results indicate that with developing and increasing of tension fields, axial compression and shear forces are increased specially in unequal mode and subsequently in all models (3,5,7 story),were modeled by strip model (AISC design guide 20) and using von-mises yield criterion in plane-stress condition for finite element analysis, plastic moment capacity of critical selected beams are decreased and results from theoretical plastic analysis were shown to agree well with the results from finite element analysis that is shown that accuracy of classic plastic analysis in estimation of plastic moment of beams and it is noticeable that it is necessary to consider tension fields effects in plastic moment capacity and minimum required moment of inertia because of incresing and developing of tension fields and post-yielding of steel plates and subsequently affect on compress and shear beam stresses values and resistant moment design capacity in positive and negative flexure of horizontal boundary elements for ultimae loads.

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References

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Journal of Structural and Construction Engineering
Volume 5, Issue 2 - Serial Number 16
September 2018
Pages 160-171

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History

  • Receive Date: 15 May 2017
  • Revise Date: 01 July 2017
  • Accept Date: 22 July 2017

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