Review on Modelling of Beam-column Joints in Steel Frame Building
Dr. Akil Ahmed
Department of Civil Engineering, Jamia Millia Islamia, New Delhi, 110025, India. , IN
Mohd Nadeem
Department of Civil Engineering, Jamia Millia Islamia, New Delhi, 110025, India. , IN
Prof. Khalid Moin
Department of Civil Engineering, Jamia Millia Islamia, New Delhi, 110025, India. , IN
Keywords: Steel frame, semi-rigid joint, moment rotation
Abstract
In analysis and design of a steel frame building, the structural engineers model the frame structure in anticipated software. Mostly in the modeling, the beam-column joint has not been considered semi-rigid due to its complex geometry, lack of knowledge, high computational cost and its unknown behaviour. Furthermore, the semirigid joint depends on the behaviour of moment rotation curve (M-θr). To understand the behavior, the semi-rigid joint is classified into different types. Mostly, the joint is assumed as pinned or fully rigid as a result beam-column joint is uneconomical, and has low ductility and less energy dissipation. The pinned connection implies that no moment can be transferred through beam to the column. It means that, the beam-column joint has no rotational stiffness, transfer the axial, and shear force through beam to column. For fully rigid joint, rotational behaviour is there and some moment is transferred to the column through beam. The behaviour of beam-column joint has finite stiffness and therefore it may be categorized as a semi-rigid joint. In this review paper, a study is carried out on the different types of semi-rigid joint, its moment rotation behaviour and different methods have been used for the analysis and design such as empirical, mechanical, and component methods, and finite element-based software example ABQUAS, ANYSIS, SAP2000 and STAAD Pro
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