[ Article ]

Journal of Korean Society of Steel Construction - Vol. 36, No. 6, pp.461-471

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

Print publication date 27 Dec 2024

Received 16 Nov 2024 Revised 07 Dec 2024 Accepted 08 Dec 2024

DOI: https://doi.org/10.7781/kjoss.2024.36.6.461

부분 매입형 셀룰러 합성보의 휨-전단 성능에 대한 실험적 평가

류재호¹^{, *} ; 김영식² ; 정경수³ ; 박만우⁴

1조교수, 경일대학교, 건축토목공학과
2대표, 영구조엔지니어링
3수석연구원, 포스코, 철강솔루션연구소
4부장, 케이지이앤씨주식회사(케이지스틸 건재사업부문)

Experimental Evaluation of Flexural-shear Performance of Partially Embedded Cellular Composite Beams

Ryu, Jaeho¹^{, *} ; Kim, Young Sik² ; Chung, Kyoung Soo³ ; Park, Man Woo⁴

1Assistant Professor, Department of Architectural and Civil Engineering, Kyungil University, Gyeongbuk, 38428, Korea
2President & CEO, YOUNG Structural Engineering Inc., Seoul 06373, Korea
3Senior Researcher, POSCO Steel Solution Research Center, Incheon, 21985, Korea
4General Manager, KG E&C Co., Ltd.(Div. of Engineering & Construction, KG Steel), Seoul, 04517, Korea

Correspondence to: ^*Tel. +82-53-600-5435 E-mail. jryu@kiu.kr

초록

본 논문에서는 층고절감 및 장스팬 구조에 효과가 탁월하고, 설비 배관을 자유롭게 관통형으로 설계할 수 있는 부분 매입형 셀룰러 합성보를 제안하였다. 제안된 합성보의 휨-전단 성능을 규명하고자 일련의 실험적 평가를 수행하였다. 제안된 셀룰러 합성보의 경우, 콘크리트 슬래브의 휨 및 전단 저항 기여도 덕분에, 셀룰러 강재보 T단면에 발생되는 비렌딜 휨과 압축에 의한 좌굴을 완화시킬 수 있었으며, 이로 인해 비합성 셀룰러 보 대비 하중 저항 및 연성 능력을 크게 향상시키는 결과를 거둘 수 있었다. AISC Steel Desgn Guide 31에 근거한 설계 이론값들은 제안 합성보의 내력을 평가하기에 충분히 보수적이었다. 그러나 유효 단면2차모멘트를 산정하는 방식은 실험 결과 대비 약 20 % – 30 % 과대 평가되는 부분이 확인되어, 추가적인 연구로 검증하는 것이 필요하였다.

Abstract

In this paper, a partially embedded cellular composite beam was proposed that is excellent in reducing floor height and suitable for long-span structures. Service facilities such as pipes or ducts can be designed integrally with the proposed composite beams by penetrating the web openings. A series of experimental tests were conducted to investigate the flexural-shear performance of the proposed composite beam. For the proposed composite beams, the Vierendeel bending and compression-induced buckling occurring at the T-section of the cellular steel beams can be alleviated due to the contribution of the concrete slab to flexural and shear resistance. This results in significantly improved load resistance and ductility compared to noncomposite cellular beams. Theoretical design values based on AISC Steel Design Guide 31 were sufficiently conservative to evaluate the flexural strength of the proposed composite beam. However, the method for estimating the effective moment of inertia was found to be overestimated by about 20 % – 30 % compared to experimental results, requiring verification through further research.

Keywords:

Cellular beam, Vierendeel bending, Web post buckling, Flexural behavior, Composite beam

키워드:

셀룰러 보, 비렌딜 휨, 웨브 포스트 좌굴, 휨 거동, 합성보

Acknowledgments

본 연구는 정부(과학기술정보통신부)의 재원으로 한국연구재단(No. RS-2023-00252521)의 지원과 ㈜포스코의 연구비 지원을 받아 수행된 연구임.

References

Ju, Y.K., Chun, S.-C., and Kim, S.-D. (2009) Flexural Test of a Composite Beam Using Asymmetric Steel Section with Web Openings, Journal of Structural Engineering, American Society of Civil Engineers, Vol.135, No.4, pp.448-458. [https://doi.org/10.1061/(ASCE)0733-9445(2009)135:4(448)]
Hwang, H., and Baek, S. (2009) 비대칭 조립 H형강 합성보, SMARTBEAM 개발 및 적용사례 소개, 건축구조, Korean Structural Engineers Association, Vol.16, No.4, pp.48-52 (in Korean). [https://doi.org/10.5124/jkma.2009.52.6.573]
Kim, S.S., Kim, S.M., Kim, S.B., Seo, D.G., and Kim, K.S. (2004) An Experimental Study on the Behavior of the T-Type Steel Composite Beam, Journal of Korean Society of Steel Construction, KSSC, Vol.16, No.2, pp.225-233 (in Korean).
Heo, B.-W. (2008) Flexural Behavior of Profiled Steel Composite Beams with Partial Shear Interaction, Journal of the Architectural Institute of Korea Structure & Construction, AIK, Vol.24, No.10, pp.69-76 (in Korean).
Lee, H. (2008) Introduction of Modularized Hybrid System, 건축구조, Korean Structural Engineers Association, Vol.15, No.1, pp.55-65 (in Korean). [https://doi.org/10.4078/jkra.2008.15.3.204]
Mullett, D.L., and Lawson, R.M. (1993) Slim Floor Construction Using Deep Decking, The Steel Construction Institute, UK.
Rackman, J.W., Hicks, S.J., and Newman, G.M. (2006) Design of Asymmetric Slimflor Beams with Precast Concrete Slabs, The Steel Construction Institute, UK.
Ryu, J., Lee, C.-H., Oh, J., Yoon, S.-W., and Ju, Y.K. (2017) Shear Resistance of a Biaxial Hollow Composite Floor System with GFRP Plates, Journal of Structural Engineering, American Society of Civil Engineers, Vol.143, No.2, 04016180. [https://doi.org/10.1061/(ASCE)ST.1943-541X.0001657]
Sehwail, M.M., and Celikag, M. (2022) Load Carrying Capacity of Hot-Rolled Hybrid Cellular Steel Beams: Experimental Investigations, Arabian Journal for Science and Engineering, King Fahd University of Petroleum and Minerals, Vol.47, No.10, pp.12633-12648. [https://doi.org/10.1007/s13369-021-06508-4]
ArcelorMittal Europe (2021) ACB® and Angelina® Beams: A New Generation of Beams with Large Web Openings, ArcelorMittal Europe, Luxembourg.
Kim, K.-J., and Eun, S.-W. (2006) Introduction of Cellular Beam Made of Rolled H Beam, Magazine of the Korean Society of Steel Construction, KSSC, Vol.18, No.1, pp.101-107 (in Korean).
Fares, S.S., Coulson, J., and Dinehart, D.W. (2016) Steel Design Guide 31: Castellated and Cellular Beam Design, American Institute of Steel Construction, USA.
Lawson, R.M., and Hicks, S.J. (2011) Design of Composite Beams with Large Web Openings, SCI P355, The Steel Construction Institute, UK.
Bjorhovde, R. (2000) Design Outline for Vierendeel Bending of Cellular Beams, University of Arizona, USA.
AISC (2022) Specification for Structural Steel Buildings, ANSI/AISC 360-22, American Institute of Steel Construction, USA.