http://www.iaeme.com/IJCIET/index.asp 323 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 6, November-December 2016, pp. 323–327, Article ID: IJCIET_07_06_034 Available online at http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=7&IType=6 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication STUDY OF STEEL BEAM-COLUMN ASSEMBLY WITH REDUCED BEAM SECTION S. G. Gondalia Nirma University, Ahmedabad, India U. K. Koshti Nirma University, Ahmedabad, India Dr. U. V. Dave Nirma University, Ahmedabad, India ABSTRACT During 1994 Northridge earthquake and 1995 Kobe earthquake, the Steel MR Frames showed poor ductility performance. The connection failure before the failure of structural members led to decrease in ductility of the structure. To increase the ductility, two concepts were developed: Strengthening the connection or weakening the beam. Reduced Beam Sections (RBS) is one of the ways of weakening the beams. RBS is a part of beam near the connection where the top and/or bottom flanges are cut thereby forcing the plastic hinge to form away from the connection. In the present study, changes in local parameters due to incorporation of RBS are studied. Two steel beam-column assemblies, one with RBS and other without RBS are considered for the study. FE analysis of both the assemblies is done in ANSYS 14.5 to see the variation in deflection of beam and in the stresses at several critical locations. Results show the benefit of using RBS in terms of stresses at beam end and Panel Zone Key words: Earthquake, Reduced Beam Sections (RBS), FEMA (Federal Emergency Management Academy) Cite this Article: S. G. Gondalia, U. K. Koshti and Dr. U. V. Dave, Study of Steel Beam-Column Assembly with Reduced Beam Section. International Journal of Civil Engineering and Technology, 7(6), 2016, pp.323–327. http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=7&IType=6 1. INTRODUCTION The use of RBS connections in steel buildings have been a concept developed after the lack in ductility of structure was observed in 1994 Northridge earthquake and 1995 Kobe earthquake in California. The guidelines for design and detailing of RBS connections have been stated in FEMA (Federal Emergency Management Academy) 350, Euro Code 8-Part3 and ANSI/ANSI 358.With the introduction of Reduced Beam Sections, change in the behavior of the building is certain. The objective of this study is to investigate the change in stress distribution between RBS, Beam end and Panel Zone due to incorporation of RBS. Two beam-column assemblies have been analyzed using FEM, one without RBS and other with RBS. The Finite Element Method can give the exact stress contours in the element due to the applied load.