Numerical study of slotted web drilled flange moment frame connection

Document Type : Research

Authors

1 Civil Engineering Department , K.N. Toosi University of Technology

2 Graduate Student, Dept. of Construction, Science and Research branch, Islamic Azad University, Kermanshah, Iran

3 Graduate Student, Dept. of Civil Engineering, Islamic Azad University, Takestan Branch, Iran

Abstract

Beam connections with reduced drilled section and slotted web have been presented after the Northridge earthquake (1994). Their new geometrical shapes have been resulted in weakening of beams and subsequently the bette rperformance of connections in the earthquakes. In this research, the advantages of both connections, mentioned above, have been studied in the Slotted Web Drilled Flange (SWDF) composite connections. Accordingly, the effects of different parameters of slot such as length, width and end hole dimension have been assessed as well. Based on the results obtained in this research,energy dissipation is reduced due to the increase of length of slot web in the SWDF connection, exceeded the values recommended in the codes. Besides, the stability of hysteresis curve decreases because of increasing in the width and end hole diameter of web slot.

Keywords

References

1. Chen, S.J. Yeh, C.H., Chu, J.M., (1996), "Ductile Steel Beam to Column Connections for Seismic Resistance", Journal of Structural Engineering, American Society of Civil Engineers, November, 122(11), 1292-9. [DOI:10.1061/(ASCE)0733-9445(1996)122:11(1292)]
2. AISC (2010), "Prequalified Connections for Special and Intermediate Steel Moment Frame for Seismic Applications", American Institute of Steel Construction, ANSI/AISC 358-10, Chicago.
3. Engelhardt, M.D. Winneberger, T. Zekany A.J. Potyraj, T.J., (1996), "The Dogbone Connection", Modern Steel Construction / August.
4. Ralph, M.R., (1998), "Lateral Bracing of Seismic Beams", Modern Steel Construction, November, 28-33.
5. Seismic Structure Design Associate (SSDA), "Slotted Steel Frame Moment Connection Design," Website: www.ssda.net.
6. Engelhardt, M.D. Winneberger, T. Zekany A.J. Potyraj, T.J., (1998), "Eperimental Investigation of Dogbone Moment Connections", Engineering Journal / Fourth Quarter.
7. Pachoumis, D.T. Galoussis, E.G. Kalfas, C.N. Efthimiou, I.Z., (2010), "Cyclic Performance of Steel Moment-Resisting Connections with Reduced Beam Sections Experimental Analysis and Finite Element Model Simulation", Engineering Structures, 32: 2683-2692. [DOI:10.1016/j.engstruct.2010.04.038]
8. Kazerani, S., (2012), "Modeling of Slotted Rigid Connection and Investigation of Effective Factors on Position of Plastic Hinge", a thesis submitted in partial fulfillment of the degree of Master of Science in Engineering, University of Kermanshah.
9. FEMA (1999), "Interim Guidelines Advisory", Federal Emergency Management Agency, FEMA-267, Sacramento, California. June.
10. Maleki, S. Tabbakhha, M., (2011), "Numerical Study of Slotted Web Reduced Flange Moment Connection", Journal of Constructional Steel Research, 69: 1-7. [DOI:10.1016/j.jcsr.2011.06.003]
11. ICC (2011), International Building Code, ES Evaluation Report.
12. AISC (2010). "Seismic Provisions for Steel Buildings", American Institute of Steel Construction, ANSI/AISC 341-10, Chicago.
13. ABAQUS (2011), ABAQUS Standard User's Manual. Version 6.11 Documentation, Inc. USA
Numerical Methods in Civil Engineering
Volume 1, Issue 3
March 2017
Pages 16-23

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History

  • Receive Date: 12 April 2014
  • Revise Date: 08 August 2014
  • Accept Date: 20 December 2014

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