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STUDY ON DYNAMIC CHARACTERISTIC OF THE STEEL FRAMES WITH SEMI-RIGID CONNECTION OF TOP AND SEAT ANGLES WITH DOUBLE WEB ANGLE

Wang Xiu-xi

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Abstract

Based on ANSYS finite element software,the performance of connections and the nonlinearities of geometry and material are considered,and the nonlinear finite element analysis of a steel frame with semi-rigid connections of top and seat angles with double web angles is conducted.The natural period of vibration,shear forces,displacements,accelerations of floors as well as the hysteresis loops of the steel-frame semi-rigid connection are obtained.The numerical results are compared with pseudo-dynamic experimental results,they are consistent well each other.The influence of semi-rigid connection's flexibility on the steel frame is also explored,which provides some references for the design of a steel frame with semi-rigid connections and the amendment of the specification of the Steel structure in the future.

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What this paper is about

Based on ANSYS finite element software,the performance of connections and the nonlinearities of geometry and material are considered,and the nonlinear finite element analysis of a steel frame with semi-rigid connections of top and seat angles with double web angles is conducted.The natural period of vibration,shear forces,displacements,accelerations of floors as well as the hysteresis loops of the steel-frame semi-rigid connection are obtained.The numerical results are compared with pseudo-dynamic experimental results,they are consistent well each other.The influence of semi-rigid connection's flexibility on the steel frame is also explored,which provides some references for the design of a steel frame with semi-rigid connections and the amendment of the specification of the Steel structure in the future.

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Available abstract

Based on ANSYS finite element software,the performance of connections and the nonlinearities of geometry and material are considered,and the nonlinear finite element analysis of a steel frame with semi-rigid connections of top and seat angles with double web angles is conducted.The natural period of vibration,shear forces,displacements,accelerations of floors as well as the hysteresis loops of the steel-frame semi-rigid connection are obtained.The numerical results are compared with pseudo-dynamic experimental results,they are consistent well each other.The influence of semi-rigid connection's flexibility on the steel frame is also explored,which provides some references for the design of a steel frame with semi-rigid connections and the amendment of the specification of the Steel structure in the future.

Key concepts: Structural engineering, Finite element method, Connection (principal bundle), Vibration, Nonlinear system, Frame (networking), Flexibility (engineering), Hysteresis

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STUDY ON DYNAMIC CHARACTERISTIC OF THE STEEL FRAMES WITH SEMI-RIGID CONNECTION OF TOP AND SEAT ANGLES WITH DOUBLE WEB ANGLE — Research Paper | ScholarLens