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Paper Information

Journal:   JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ)   SUMMER 2008 , Volume 35 , Number 3 (51) CIVIL ENGINEERING; Page(s) 13 To 24.
 
Paper: 

INVESTIGATION IN TO THE BEHAVIOR OF UNSTIFFENED STEEL SHEAR WALLS IN TALL BUILDINGS

 
 
Author(s):  EGHBALIAN M., ABEDI K.
 
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Abstract: 

In past decades, steel shear walls (SSWs) have been used as a new lateral resistance structures in tall buildings and high seismic risk regions due to appropriate seismic specifications. SSWs are constructed in two forms of unstiffened and stiffened types. The unstiffened form is the best choice for designers, because of its simple constructional details and lower cost. There are three types of design procedures for SSWs. in all procedures, the designing process is performed Base on shear strength, and the bending strength is neglected. In tall buildings, significant bending forces occur in addition to shear forces. Hence in the present study, the behavior of SSWs in tall buildings was assessed, by applying into account both bending forces and shear forces. The analysis was performed by advanced nonlinear finite element program ANSYS®. The analysis results represented incapability of current SSWs design procedure in tall buildings. Some recommendations including modifying boundary conditions using feasible structural systems and modifying design procedure, in order to implementing this type of resistance systems, were proposed. The performed nonlinear collapse analysis demonstrates the effectiveness, reliability and validity of the proposed approach.

 
Keyword(s): DURABILITY, STEEL SHEAR WALLS, NONLINEAR ANALYSIS, FINITE ELEMENT MODELING, ELASTIC BUCKLING, DIAGONAL TENSION FIELD, TALL BUILDING
 
References: 
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