An improved and robust finite element model for simulation of thin-walled steel bolted connections

Numerical Modelling of Thin-walled Purlins Connection to the Supporting Structure☆

The current paper focuses on numerical simulation peculiarities of offset welded rectangular hollow section joints. Understanding the modelling techniques can result in easier and faster and above all correct outcomes from FEA for future use. The steel joints under discussion are composed from cold-formed regular rectangular hollow sections where RHS brace members are laterally shifted from chord axis. Joints work under monotonically increasing compression load applied to a brace top. Numerical models were developed in FE programme Abaqus. FE-models is composed of C3D8R 8-noded solid linear brick elements with an emphasis on mesh size effect and modelling of a weld seam. FE advanced model were compiled considering both material and geometric nonlinearities. For validation purposes, the full-scale laboratory tests were conducted. Proposed FE models reliably predict the structural behaviour of welded offset T-joints thanks to good agreement achieved on deformation limit 3 % b0 with the maximum deviation 10.3 %.

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Simulation of t-joints between rhs steel members with offset in abaqus cae

Finite‐Element‐Bemessung von Stahlverbindungen basierend auf der Komponentenmethode

Component based finite element design of steel joints

This paper introduces component based finite element model (CBFEM) which is a new method to analyse and design connections of steel structures. Design focused component model (CM) is compared to finite elements models (FEM). Procedure for composition of a model based on usual production process is used in CBFEM. Its results are compared to those obtained by component method for portal frame eaves moment connection with good agreement. Design of moment resistant column base is demonstrated by a case loaded by two directional bending moments and normal force. Interaction of several connections in one complex joint is explained in the last example. This paper aims to provide structural engineers with a new tool to effectively analyse and design various joints of steel structures.

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František Wald

Papers

Structural Analysis and Design of Steel Connections Using Component Based Finite Element Model (CBFEM)

Welded t‐joints between rectangular hollow section members with offset

Multi-Level Joints and Element Design

Behaviour of slender stiffeners in extended end‐plate joints

Influence of joint stiffness on design of steel members