http://iaeme.com/Home/journal/IJCIET 53 [email protected] International Journal of Civil Engineering and Technology (IJCIET) Volume 8, Issue 9, September 2017, pp. 53–60, Article ID: IJCIET_08_09_008 Available online at http://http://iaeme.com/Home/issue/IJCIET?Volume=8&Issue=9 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication Scopus Indexed STUDY ON EDGE SLAB-COLUMN CONNECTION IN FLAT SLAB T. S. Viswanathan, V. Sairam and K.Srinivasan School of civil and chemical engineering, VIT University, Vellore, Tamil Nadu, India Giriraj Mannayee School of Mechanical Engineering, VIT University, Tamil Nadu, Vellore, India ABSTRACT The major concern in flat slabs is the concentration of high stresses in the slab column connection resulting in punching shear failure of the entire slab system. Hence in the present study an attempt has been made to study and analyze the effect of edge column in a flat slab. A numerical investigation was conducted using the finite element software ABAQUS to evaluate their ability to resist punching shear in a flat slab. The nonlinear characteristics of concrete were achieved by employing the concrete damaged plasticity model in the finite element program. Linear and nonlinear analysis of edge slab-column connection was carried out for slab of depth 150mm and 200 mm. Remarkable reductions in deflection is observed when the depth of slab is increased. Keywords: Flat slab system, punching shear, edge slab-column connection, plastic damaged plasticity model, Abaqus. Cite this Article T. S. Viswanathan, V. Sairam, K. Srinivasan and Giriraj Mannayee, Study on Edge Slab-Column Connection in Flat Slab, International Journal of Civil Engineering and Technology, 8(9), 2017, pp. 53–60. http://iaeme.com/Home/issue/IJCIET?Volume=8&Issue=9 1. INTRODUCTION Flat slab is a reinforced slab which does not have beams or girders and in which the slab directly rests on the column. Its load transfer mechanism includes transfer of load directly from slab to supporting columns. Flat slab provides more head room as there are no beams and hence provides more working area. The minimum overall thickness of flat slab is 125mm and maximum is 250mm. The columns are provided with flared portion at the top which is known as a column head which in turn increases the resistance of the slab against punching shear. A portion of the slab thickened in the vicinity of the column is known as a drop. The absence of drops and column heads in a flat slab constitutes a flat plate. The major concern in flat slabs is the concentration of high stresses in the slab column connection resulting in punching shear failure of the entire slab system. This may be due to improper design for shear especially in exterior columns. Punching shear induces a cone shaped perforation starting
STUDY ON EDGE SLAB-COLUMN CONNECTION IN FLAT SLAB
May 19, 2023
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