[ Article ]

Journal of Korean Society of Steel Construction - Vol. 36, No. 6, pp.433-441

ISSN: 1226-363X (Print) 2287-4054 (Online)

Print publication date 27 Dec 2024

Received 08 Nov 2024 Revised 28 Nov 2024 Accepted 02 Dec 2024

DOI: https://doi.org/10.7781/kjoss.2024.36.6.433

면외변형방지 강재댐퍼의 이력특성에 관한 실험적 연구

정용호¹ ; 김동건²^{, *}

1석사과정, 동아대학교, ICT융합해양스마트시티공학과공학과
2정교수, 동아대학교, ICT융합해양스마트시티공학과

Experimental Study on Hysteretic Characteristics of Steel Dampers in Restraining Out-of-Plane Deformation

Jeong, Yong Ho¹ ; Kim, Dong Keon²^{, *}

1M.Sc.Student, Dept. of ICT Integrated Safe Ocean Smart Cities Engineering, Dong-A University, Busan, 49315, Korea
2Professor, Dept. of ICT Integrated Safe Ocean Smart Cities Engineering, Dong-A University, Busan, 49315, Korea

Correspondence to: ^*Tel. +82-51-200-7692 Fax. +82-51-200-7616 E-mail. dkkzone@dau.ac.kr

초록

본 연구에서는 탄소강(SS275)으로 제작된 슬릿형 강재댐퍼의 면외변형을 방지하기 위해 OPR-SD 시스템을 적용한 보완상세를 제안하였다. 면외방향으로의 변형이 가능하도록 형상비 2.3, 2.9, 3.3을 가지는 강재댐퍼를 대상으로 정적반복가력 실험을 수행하였다. OPR-SD 시스템의 내진성능과 면외변형 방지 효과를 분석하기 위해 파단형상, 하중-변위 이력곡선, 최대 변형량, 에너지소산량, 등가감쇠비를 분석하였다. 제안된 OPR-SD 시스템은 기존 강재댐퍼 대비 면외변형 방지 효과가 뛰어나며, 반복 하중에 대한 변형 저항성과 에너지 소산 능력이 우수함을 확인하였다.

Abstract

In this study, an OPR-SD (Out-of-Plane Restrained Steel Damper) system was proposed as a supplementary detail to prevent out-of-plane deformation in steel dampers made of carbon steel (SS275). Cyclic static loading tests were conducted on steel dampers with shape ratios of 2.3, 2.9, and 3.3, intentionally designed to observe out-of-plane deformation. To analyze the seismic performance and out-of-plane deformation restrained effects of the OPR-SD system, fracture patterns, load-displacement hysteretic curves, maximum deformation, energy dissipation, and equivalent damping ratio were examined. The experimental results confirmed that the proposed OPR-SD system demonstrates superior out-of-plane deformation restraint compared to conventional steel dampers, as well as excellent deformation resistance and energy dissipation capacity under cyclic loading.

Keywords:

Steel slit damper, Out-of-Plane restrained system, Hysteretic characteristics, Cyclic static loading, Shape ratio

키워드:

슬릿형 강재댐퍼, 면외변형방지 시스템, 이력특성, 정적반복가력시험, 형상비

Acknowledgments

이 논문은 2016년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임(NRF-2016R1A6A1A03012812).

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