Determining the Optimal Geometry of RBS Connection for Enhancement of Seismic Behavior of Steel Moment Frames

Hadi Einabadi, Vahidreza Kalatjari, Hossein Khosravi

Abstract


In a RBS connection, the stress concentration is being prevented on the location of joint via local reduction of beam section near the column and the place of plastic hinge is being transferred from connection to a section of a beam near to the column. A special ilk of RBS connection which is named dogbone connection and its beam wings are cut from a circle in an arcuate form, has displayed a desirable performance against to the seismic loads. This paper aims at obtaining the best cutting geometry of the beam wing in order to improve the performance of the connection against to the seismic loads. For this purpose in this research, we have opted a several panel zone with different dimension on the beam wing under the influence of the seismic loads in Finite Element software called Abaqus along with a cyclic loading, modeled displacement control index and the best sample of cutting dimension among from the samples that are modeled.


Keywords


Reduced Beam Section (RBS) Connection. Dogbone connection. Optimal geometry. Cyclic loading. Finite element analysis (FEA).

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References


Scott MA,Lowrence DR. 2004. The reduced beam section moment connection without continuity plates. 13th world conference on earthquake engineering, Vancouver, BC, Canada. August 1-6, paper No. 1504.

FEMA 355D, 2000. State of the art report on connection performance. Prepared by the SAC Joint Venture for the Federal Emergency Management Agency. Washington, DC.

Chi B,Uang.M. 2002. Cyclic Response and Design Recommendations of Reduced Beam Section Moment Connections with Deep Columns. Journal of Structural Engineerig.Vol. 128, No. 4, pp. 464-473.

Zhang X,Ricles JM. 2006. Experimental Evaluation of Reduced Beam Section Connections to Deep Columns. Journal of Structural Engineering.Vol. 132,No. 3, pp. 346-357.

Shen J,Kitjasateanphun T,Srivanich W. 2000. Seismic performance of steel moment frames with reduced beam sections. Engineering Structures.Vol. 22, pp. 968-983.

Kitjasateanphun T,Shen J,Srivanich W,Hao H. 2001. Inelastic Analysis of Steel Frames with Reduced Beam Section. Structural Design of Tall Building.Vol. 10, pp. 231-244.

Jin J. El-Tawil S. 2005. Seismic performance of steel frames with reduced beam section connections. Journal of Constructional Steel Research.Vol. 61, pp. 453-471.

Swati AK, Gaurang V.2014. Study of steel moment connection with and without reduced beam section.

NEHRP Seismic Design Technical Brief. 2009. Seismic Design of Steel Special Moment Frame – A Guide for Practicing Engineers, USA, No. 2.

NIST GCR 11-917-13. 2011. Research Plan for the Study of Seismic Behavior and Design of Deep, Slender Wide Flange Structural Steel Beam-Column Members. NIST, USA.

Abaqus, version 6.14 -1. User’s manual.

AISC. 2002. Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction. Chicago, Illinois.

ANSI/AISC 341-10. 2010. Seismic provisions for Structural Steel Buildings, American Institute of Steel Construction. USA.

ANSI/AISC 360-10. 2010. Specification for Structural Steel Buildings, American Institute of Steel Construction. USA.

FEMA-350. 2000. Recommended Seismic Design Criteria for New Steel Moment Frame Buildings. Federal Emergency Management Agency. Washington DC, USA.

Deylami A. MoslehiTabar A. 2008. Experimental study on the key issues affecting cyclic ehavior of reduced beam section moment connections. The 14thWorld Conference on Earthquake Engineering. Beijing, China. October 12-17.

ATC-24. 1992. Guidelines for Cyclic Seismic Testing of Components of Steel Structures for Buildings. Report No. ATC-24, Applied Technology Council, Redwood City, CA.




DOI: https://doi.org/10.5902/2179460X20076

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