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Title of Article Development of frame finite element model for truss structures with semi-rigid connections 
Date of Acceptance 30 March 2018 
Journal
     Title of Journal Engineering and Applied Science Research (EASR) 
     Standard SCOPUS 
     Institute of Journal Prinya Chindaprasirt, Department of Civil Engineering, Khon Kaen University, Thailand 
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     Year of Publication 2018 
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     Abstract The problem of connection for truss structures is one of the major concerns in the structural analysis and design. Behavior of truss structures is usually analyzed with a common finite element model, which considers each member as a two-force member. Each truss member connection is treated as a rotational pinned joint but, in the reality, members of truss structures are usually connected with bolts or by means of welding. On the other hand, a designer may analyze such a structure using a frame finite element model where joint connections are considered fixed or rigid connections, which provide the connection stiffer than the inherent behavior. In this research, instead of using truss or frame finite element models, the substructure technique is employed to develop a more realistic finite element model. Each element is separated into three parts, a main element and two joint elements. The substructure technique is integrated into the frame finite element model to reduce design variables in global equations, to increase deformability of the joint elements, and make the proposed model more realistic. Young’s modulus of the joints are reduced as a percentage of modulus of the main elements. Comparison of the results obtained from the proposed model to the truss and frame finite element models are reported. 
     Keyword Finite element method, Semi-rigid, Partially restrained, Flexible connections, Substructure. 
Author
587040020-2 Mr. NATEE PANAGANT [Main Author]
Engineering Doctoral Degree

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