Scientia Iranica

Scientia Iranica

The effect of gusset plate in moment-rotation behavior of double-web angle connection, in braced frames

Document Type : Research Article

Authors
Department of Civil Engineering, Sharif University of Technology, Tehran, Iran
Abstract
Double web angle connection is one of the most rudimentary connections in simple structural systems such as braced frame system. Essentially, it is presumed in conventional designs, which actually double web angle connection behaves as a hinge connection. However, in braced frames, due to existence of braces in some bays, in specified locations where gusset plates of brace placed with beam to column connection in one joint, this contemplation may not be accurate. This is due to the restraining of the beam from rotation by gusset plates that is placed on top and bottom of the beam or only on one side. In such cases, the simple beam to column connection may be transformed into a semi-hinge or fixed connection. In this paper, double web angle connection is investigated in the mentioned locations using the FEM method along with the calculating moment rotation behavior of connection and subsequently type, as well as the rigidity of connection. Furthermore, an analytical model is proposed to predict the characteristics of the double web angle connection in the view of the relevant case.
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Subjects

Volume 24, Issue 6
Transactions on Civil Engineering (A)
November and December 2017
Pages 2712-2725

  • Receive Date 05 October 2015
  • Revise Date 06 May 2016
  • Accept Date 29 August 2016