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Journal: STRUCTURE AND STEEL | Year:1388 | Volume:5 | Issue:6 | Start Page:31 | End Page:42

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Title

EVALUATION OF RC SHEAR WALL AND STEEL BRACING FRAME INTERACTION IN MID-RISE STEEL MOMENT FRAME SYSTEMS

Pages

 Start Page 31 | End Page 42

Abstract

 One of the methods for seismic retrofit of mid-rise buildings is the use of DUAL SYSTEMs such as MOMENT RESISTING FRAME accompanied with another lateral load carrying system such as STEEL BRACING FRAME or REINFORCED CONCRETE SHEAR WALL. The selection of shear wall or steel braced frame is one of the most important matters. Therefore, investigation of the behavior in these structures and knowing the effect of those two systems must be considered in coupling with MOMENT RESISTING FRAME system. In this study, the effect of shear wall and steel braced frame in the behavior of structure and the DUAL SYSTEM interaction is investigated by the analysis of steel MOMENT RESISTING FRAME in a 20 story building using ETABS 2000 software. The analytical result show that shear wall have more lateral stiffness than X-braced system and more logical when considered from executive point of view. For controlling the lateral deformation of structures the analytical results show that the increase in cross sectional area of steel braces have a limited effect on the response, but increasing the number of braced bays is more effective.

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