A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connections

This paper presents a displacement-based finite element formulation for nonlinear analysis of steel - concrete composite planar frames subjected to combined action of gravity and lateral loads. A 6DOF super element is proposed for modeling composite beam, allowing for partial interaction between th...

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Main Authors: Le Luong Bao Nghi, Bui Cong Thanh
Format: Article
Language:English
Published: Publishing House for Science and Technology 2011-03-01
Series:Vietnam Journal of Mechanics
Subjects:
Online Access:https://vjs.ac.vn/index.php/vjmech/article/view/35
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author Le Luong Bao Nghi
Bui Cong Thanh
author_facet Le Luong Bao Nghi
Bui Cong Thanh
author_sort Le Luong Bao Nghi
collection DOAJ
description This paper presents a displacement-based finite element formulation for nonlinear analysis of steel - concrete composite planar frames subjected to combined action of gravity and lateral loads. A 6DOF super element is proposed for modeling composite beam, allowing for partial interaction between the steel beam and the concrete slab, semi-rigid nature of beam to column composite connection and material nonlinearity. The load control method and the displacement control method are utilized for tracing the structural equilibrium paths, and the direct method is utilized for solving the nonlinear problem. Numerical examples, concerning a two-span continuous composite beam, a portal composite frame and a six-storey composite frame, are performed. The results are compared with experience data or theoretical results from other studies and are discussed for influences of the factors mentioned above on behaviour of composite beams and composite frames.
format Article
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issn 0866-7136
2815-5882
language English
publishDate 2011-03-01
publisher Publishing House for Science and Technology
record_format Article
series Vietnam Journal of Mechanics
spelling doaj-art-e8f2b4aeec494b01ac72deb2bbeeeefc2025-08-20T02:11:15ZengPublishing House for Science and TechnologyVietnam Journal of Mechanics0866-71362815-58822011-03-0133110.15625/0866-7136/33/1/35A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connectionsLe Luong Bao Nghi0Bui Cong Thanh1University of Technology, VNU-HCMCUniversity of Technology, VNU-HCMC This paper presents a displacement-based finite element formulation for nonlinear analysis of steel - concrete composite planar frames subjected to combined action of gravity and lateral loads. A 6DOF super element is proposed for modeling composite beam, allowing for partial interaction between the steel beam and the concrete slab, semi-rigid nature of beam to column composite connection and material nonlinearity. The load control method and the displacement control method are utilized for tracing the structural equilibrium paths, and the direct method is utilized for solving the nonlinear problem. Numerical examples, concerning a two-span continuous composite beam, a portal composite frame and a six-storey composite frame, are performed. The results are compared with experience data or theoretical results from other studies and are discussed for influences of the factors mentioned above on behaviour of composite beams and composite frames. https://vjs.ac.vn/index.php/vjmech/article/view/35super finite elementcomposite constructionspartial interactionsemi-rigid composite connectionsnonlinear analysis
spellingShingle Le Luong Bao Nghi
Bui Cong Thanh
A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connections
Vietnam Journal of Mechanics
super finite element
composite constructions
partial interaction
semi-rigid composite connections
nonlinear analysis
title A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connections
title_full A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connections
title_fullStr A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connections
title_full_unstemmed A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connections
title_short A 6DOF super element for nonlinear analysis of composite frames with partial interaction and semi-rigid connections
title_sort 6dof super element for nonlinear analysis of composite frames with partial interaction and semi rigid connections
topic super finite element
composite constructions
partial interaction
semi-rigid composite connections
nonlinear analysis
url https://vjs.ac.vn/index.php/vjmech/article/view/35
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AT buicongthanh a6dofsuperelementfornonlinearanalysisofcompositeframeswithpartialinteractionandsemirigidconnections
AT leluongbaonghi 6dofsuperelementfornonlinearanalysisofcompositeframeswithpartialinteractionandsemirigidconnections
AT buicongthanh 6dofsuperelementfornonlinearanalysisofcompositeframeswithpartialinteractionandsemirigidconnections