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In this paper the finite element method approach is presented in order to determine the effective stress redistribution and deformation in the bolted beam end-plate connection assembled with high tensile bolts. Connection is represented via HEA profile with both end-plates, bolted to the I-shape short cantilevers welded to the supporting columns. It has been assumed that the building would be foreseen as a warehouse and the beam would be located in the ceiling, thus live load with value of 5.5 kN/m2 has been adopted. Analyzed beam, end-plates and beam rib elements have been assumed to be made of S235JR steel grade. Three different bolt grades i.e. 8.8, 10.9 and 12.9 and four different multipliers of maximum acceptable tightening torque i.e. 1.00, 0.75, 0.50, 0.25 are taken into considerations. For each bolt grade the minimum number of bolts and end-plate thickness required for safe connection work have been determined on the basis of polish national standards. Through the analysis it can be observed that the higher tightening torque, the smaller T-stub deformation, whereas Misses stress under the bolts heads and nuts are significantly increased. Stated boundary problem is solved with the utilization of SolidWorks software.
Keywords: High tensile bolts, end-plate connection, tightening torque, static analysis, FEM© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.