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Component-based Model of Semi-rigid Connections for Nonlinear Analysis of Composite Structures by He Zhao; Xiao-Gang Liu; Mu-Xuan Tao is a Engineering article available to read on EtoBox.

What is Component-based Model of Semi-rigid Connections for Nonlinear Analysis of Composite Structures about?

In order to achieve better mechanical performance and construction efficiency, the outrigger bracket with a “through type” interior diaphragm (OBTID) connection is proposed for application in semi-rigidly connected composite structures. The mechanical behaviour of OBTID connections in two frame tests under lateral cyclic loads is investigated to reveal the failure mechanism. Based on the test observations, a component-based model is proposed to analyse the nonlinear behaviour of semi-rigid connections by decomposing the connection components and putting forward the constitutive law of each component. Furthermore, the proposed model is implemented in a general commercial finite element package and a program for nonlinear analysis of semi-rigidly connected composite structures is developed by combining the component-based model with the previous fiber beam-column model. Then, a comparison between the numerical results and experimental results in both connection level and frame level indicates that the proposed component-based model can predict the complex nonlinear behaviour of semi-rigid connections with good accuracy. Additionally, the contribution of bolt slip to connection rotati

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Author

He Zhao; Xiao-Gang Liu; Mu-Xuan Tao

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)