Seismic behavior of knee brace compared with X and Chevron bracing in steel frame

Subject Areas : Analysis of Structure and Earthquake

Mohamad haghayegh ¹ , gafar Asgari ² , mohammad sadeg rohani manesh ³

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Received: 2015-04-09 Accepted : 2015-05-11 Published : 2015-12-21

Keywords: knee bracing, pushover analysis, lateral displacement, modification coefficient of stroctoures,

Abstract :

In this paper, with the introduction of a new Knee Brace Frame the seismic behavior of steel frames braced with knee brace compared with X and Chevron brace frame are discussed. For this purpose, the braced steel structures, with the number of floors three, five and eight-story frame with four meters three-span by using pushover analysis are analysed. Considering that lateral displacement structures parameter is an effective parameter on failure of structural and non-structural members, The amount of lateral displacement of steel frames braced with different types of braces, and also given the importance of ductility coefficient such behavior braced steel frames are compared with each other. Studies have shown that, the Knee Brace Frame, ductility and stiffness conjoined provides.