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Mechanical properties prediction for cold-formed steel angle connection with various flange cleat thickness

Lee, Yeong Huei and Tan, Cher Siang and Mohammad, Shahrin and Lee, Yee Ling (2015) Mechanical properties prediction for cold-formed steel angle connection with various flange cleat thickness. Jurnal Teknologi, 74 (4). pp. 52-59. ISSN 2180-3722

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Official URL: http://dx.doi.org/10.11113/jt.v74.4609

Abstract

Connection is an important element in structural steelwork construction. Eurocode does not provide adequate design information for mechanical properties prediction of top-seat flange cleat connection, especially for thin-walled cold-formed steel structures. Adopting hot-rolled design with neglecting thin-walled behaviour could lead to unsafe or uneconomic design. This research aims to provide accurate mechanical properties prediction for bolted top-seat flange cleat connection in cold-formed steel structures. The scope of work focuses on the effect of various thickness of the flange cleat to the rotational stiffness and strength behaviour of a beam-to-column connection. Experimentally verified and validated finite element modelling technique is applied in the parametric investigation. Two categories of flange cleat thickness, ranged from 2 mm to 40 mm are studied. From the developed numerical models, it is observed that Eurocode has overestimated the initial rotational stiffness prediction, calculated with component method. The over-estimation would influence the overall stiffness of structures and force distribution within the components. As a conclusion, a set of newly proposed accurate predictions for initial rotational stiffness and strength of cold-formed steel top-seat flange cleat connection, with the influence of the thickness of flange cleat is presented.

Item Type:Article
Uncontrolled Keywords:mechanical properties, finite element analysis
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:56093
Deposited By: Fazli Masari
Deposited On:16 Nov 2016 00:16
Last Modified:01 Nov 2017 04:16

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