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Stochastic Finite Element Analysis of Frames with Flexible Connections

by Sankaran Mahadevan, Georgia Inst of Technology, United States,
Achintya Haldar, Georgia Inst of Technology, United States,



Document Type: Proceeding Paper

Part of: Probabilistic Methods in Civil Engineering

Abstract:

A procedure is proposed in this paper for the stochastic finite element analysis of frames with stochastic connection rigidity. A beam-column element is used to simulate the connection and its bending stiffness is assumed to be equal to the tangent stiffness of the connection, given by the slope of the moment-rotation curve. The randomness in the rigidity is then taken into account in the subsequent stochastic analysis of the frame. The proposed method is illustrated with the help of a numerical example.

Subject Headings: Finite element method | Stochastic processes | Connections (structural) | Rigid frames | Beam columns | Stiffening | Rigidity

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