Theoretical and Experimental Study of Parameters Influencing the Buckling Behavior of the Drawer Bracing System

Document Type : Research Article


Department of Civil Engineering, Khaje Nasir Toosi University of Technology, Tehran, Iran


The researches show that the buckling of braced frame, remarkably decrease the ductility and energy absorption of the system which lead to use an innovative system called “Drawer Bracing System (DBS)”. This innovative system improve the seismic performance of the system through buckling elimination. The Drawer Bracing System (DBS) is a passive energy dissipation device made up of three parallel plates that are connected by some plates which are located at a right angle to the parallel plates and undergo minor axis bending. Energy dissipated through the inelastic behavior of these plates. The parallel plates are designed to remain elastic and to prepare the required strength and stiffness to transfer the load to the energy dissipating component of the system. In contrast to other bracing systems, removing destructive effects of buckling phenomenon is the main advantage of this system. The energy is dissipated with the use of sliding movement of its components. In this paper, the tests are carried out by the authors explain. Besides this, analytical investigation is made and the parameters which affect the buckling behavior of the system are evaluated. The results show that the buckling strength of the system is 3 percent higher and 17 percent lower than the ultimate strength of DBS in tests 1 and 2, respectively. Thus, to prevent the occurrence of buckling in the system, the buckling strength of the parallel plates should be selected larger than the ultimate strength of the system with keeping it safe margin.


Main Subjects

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