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A platform for research: civil engineering, architecture and urbanism
Validation of simple superelement model of warping transfer in moment connections of portal frames
ABSTRACTA simple beam element‐based modelling technique has been developed to allow the analytic definition of a stiffness matrix to describe the behavior of corner region between two doubly symmetric thin‐walled I beams connected through moment connection. The stiffness matrix describes the relation between „out‐of‐plane” type deformations of connected beam ends and related internal forces including shear force parallel to the flanges, torsion, weak axis bending and warping of flanges. The model allows to simulate the warping and distortion of the beams within the connection region. The resulting stiffness matrix is compatible with the thin walled beam theory with 7DOF beam elements. A parametric study has been performed to validate the model with shell element‐based simulation, using Abaqus and ConSteel software, concentrating on the direct out‐of‐plane behavior of portal frames. In the validation process first and second order analysis results and results of linear buckling analysis have been analyzed. The correctness of the shell element‐based simulation has been proved by full‐scale laboratory test. The test result has shown excellent agreement with the numerical simulation and with the proposed model.
Validation of simple superelement model of warping transfer in moment connections of portal frames
ABSTRACTA simple beam element‐based modelling technique has been developed to allow the analytic definition of a stiffness matrix to describe the behavior of corner region between two doubly symmetric thin‐walled I beams connected through moment connection. The stiffness matrix describes the relation between „out‐of‐plane” type deformations of connected beam ends and related internal forces including shear force parallel to the flanges, torsion, weak axis bending and warping of flanges. The model allows to simulate the warping and distortion of the beams within the connection region. The resulting stiffness matrix is compatible with the thin walled beam theory with 7DOF beam elements. A parametric study has been performed to validate the model with shell element‐based simulation, using Abaqus and ConSteel software, concentrating on the direct out‐of‐plane behavior of portal frames. In the validation process first and second order analysis results and results of linear buckling analysis have been analyzed. The correctness of the shell element‐based simulation has been proved by full‐scale laboratory test. The test result has shown excellent agreement with the numerical simulation and with the proposed model.
Validation of simple superelement model of warping transfer in moment connections of portal frames
ce papers
Vaszilievits‐Sömjén, Bálint (author) / Szalai, József (author) / Rad, Majid Mohavedi (author)
ce/papers ; 3 ; 373-378
2019-09-01
Article (Journal)
Electronic Resource
English
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