JAABE
[ Building Structures and Materials ]
Journal of Asian Architecture and Building Engineering - Vol. 15, No. 3, pp.573-579
ISSN: 1346-7581 (Print) 1347-2852 (Online)
Print publication date 30 Sep 2016
Received 05 Oct 2015 Accepted 11 Jul 2016
DOI: https://doi.org/10.3130/jaabe.15.573

Evaluation of the Energy Dissipation Capacities of Beam-to-Column Moment Connections for Steel Frames

Jae-Guen Yang*, 1 ; Yong-Boem Kim2 ; Min-seok Kwak2
1Professor, Department of Architectural Engineering, College of Engineering, Inha University South Korea
2Graduate Student, Department of Architectural Engineering, College of Engineering, Inha University South Korea

Correspondence to: *Jae-Guen Yang, Professor, Department of Architectural Engineering, College of Engineering, Inha University 100 Inha-ro, Nam-Ku, Incheon, 402-751, South Korea Tel: +82-32-860-7588 Fax: +82-32-866-4624 E-mail: jyang@inha.ac.kr

Abstract

Before the occurrence of the Northridge earthquake in the United States and the southern Hyogo prefecture earthquake in Japan, beam-to-column moment connections for structural steel buildings were considered to have sufficient strength, stiffness, and energy dissipation capacities. Some of the beam-to-column moment connections demonstrated insufficient strength and energy dissipation capacities however, and suffered brittle failure when the Northridge and southern Hyogo prefecture earthquakes hit.

In South Korea, the use of beam-to-column moment connections, which are pre-qualified by some authorized architectural institutes, is strictly regulated by the Korean Building Code. In addition, the beam-to-column moment connections, which are summarized in the Standard Connection Detailing Guides published by the Korean Society of Steel Construction, can be recommended only for the application of structural steel buildings. The number of such recommended seismic resisting moment connections is limited, however, for the application of structural steel buildings. Therefore, this research was conducted to evaluate the flexural design strength and energy dissipation capacity of five connection types, and to examine their practical applicability for structural steel buildings in South Korea. Towards this end, three-dimensional nonlinear finite element analysis was conducted with respect to each of the beam-to-column moment connections.

Keywords:

beam-to-column moment connections, energy dissipation capacity, flexural design strength, three-dimensional nonlinearfinite element analysis

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