Nonlinear Behavior of Buckling Knee Bracing and a New Design Method for Multi Story Structures

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Izadi, Mohammad Reza | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44541 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Mofid, Massoud
Abstract:
New CKB system is implemented into the multistory frames and investigated how its ductility and energy absorption will be changed if its bracings are able to buckle.buckling braces can improve energy absorption of lateral systems with their post-buckling characteristics through cyclic motions of frames.in proceeding,Nonlinear behavior of multi-story CKB systems within a non-dimensional desigh graphs is presented.application of multi-linear behavior of these systems are controlled by checking their ductility demands and their capacity. Nonlinear dynamic response of multi-story CKB system is analyzed through FEM softwares and presente through curves with which designers can calculate ductility demands for three famous Iran earthquakes
Keywords:
Seismic Behavior ; Chevron Knee Brace ; Moment Yielding Mode ; Shear Yielding Mode ;

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