Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of the Initial Rotational Stiffness of a Double Split Tee Connection

상·하부 T-stub 접합부의 초기회전강성 평가

  • Kim, Hee Dong (Department of Architecture, Inha Technical College) ;
  • Yang, Jae Guen (Department of Architectural Engineering, Inha University) ;
  • Lee, Jae Yun (Department of Architectural Engineering, Inha University) ;
  • Lee, Hyung Dong (Department of Architectural Engineering, Inha University)
  • Received : 2014.03.12
  • Accepted : 2014.04.10
  • Published : 2014.04.27
Download PDF
⟨ Previous Next ⟩

Abstract

Double split tee connection is a full strength-partial restrained connection that suitable for ordinary moment frame and special moment frame which demonstrates behavior characteristics depending on the stiffness ratio of columns and beams, changes in the geometric shape of the T-stub, number of fasteners and effect of panel zone. For the double split tee connection to ensure structurally safe behavior, it needs to exhibit sufficient strength, stiffness and ductile capacity. This study sought to investigate the effects of the moment-rotation angle relationship of the double split tee connection and to evaluate the initial rotational stiffness of the double split tee connection depending on changes in the geometric shape of the T-stub. To this end, two different double split tee connection specimens are experimented which designed to change geometric parameter values (${\alpha}^{\prime}$) of the T-stub, and a three-dimensional finite element analysis was performed.

상 하부 T-stub 접합부는 보와 기둥의 강성비, T-stub의 기하학적 형상변화, 긴결재의 개수, 패널존 효과 등의 영향에 따라서 보통모멘트골조 및 특수모멘트골조에 적합한 거동특성을 나타내는 완전강도 부분강접 접합부(full strength partial restrained connection)이다. 이러한 상 하부 T-stub 접합부가 구조적으로 안전하게 거동하기 위해서는 충분한 강도, 강성, 연성능력을 나타내어야 한다. 이 연구는 T-stub의 기하학적 형상변화가 상 하부 T-stub 접합부의 모멘트-회전각 관계에 미치는 영향을 파악하고, 이에 따른 상 하부 T-stub 접합부의 초기회전강성을 평가하기 위해 진행하였다. 이를 위하여 T-stub의 기하학적 형상변수 ${\alpha}^{\prime}$값을 변화시킨 2개의 상 하부 T-stub 접합부 실험체를 제작하여 접합부 실험을 수행하였고, 3차원 비선형 유한요소해석도 수행하였다.

Keywords

References

  1. FEMA-350 (2000) Recommended Seismic Design Criteria for New Steel Moment-frame Buildings, prepared by the SAC Joint Venture for the Federal Emergency Management Agency, Washington, DC.
  2. FEMA-355D (2000) State-of-the-art Report on Connection Performance, prepared by the SAC Joint Venture for the Federal Emergency Management Agency, Washington, DC.
  3. Swanson, J.A. (1999) Characterization of the Strength, Stiffness, and Ductility Behavior of T-stub Connections, Ph. D. Thesis, Georgia Institute of Technology, Atlanta, USA.
  4. Swanson, J.A., and Leon, R.T. (2000) Bolted steel connections: Tests on T-stub components, Journal of Structural Engineering, ASCE, Vol.126, No.1, pp.50-56. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:1(50)
  5. Swanson, J.A., and Leon, R.T. (2001) Stiffness Modeling of Bolted T-stub Connection Components, Journal of Structural Engineering, ASCE, Vol.127, No.5, pp.498-505. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:5(498)
  6. Swanson, J.A. (2002) Ultimate Strength Prying Models for Bolted T-stub Connections, Engineering Journal, AISC, Vol.39, No.3, pp.136-147.
  7. Swanson, J.A., Kokan, D.S., and Leon, R.T. (2002) Advanced Finite Element Modeling of Bolted T-stub Connection Components, Journal of Constructional Steel Research, Elsevier, Vol.58, No.5, pp.1015-1031. https://doi.org/10.1016/S0143-974X(01)00098-0
  8. Astaneh, A. (1985) Procedure for the Design and Analysis of Hanger-type Connections, Engineering Journal, AISC, Vol.22, No.2, pp.63-66.
  9. Kulak, G.L., Fisher, J.W., and Struik, J.H.A. (2001) Guide To the Design Criteria for Bolted and Riveted Joints, 2nd Ed., American Institute of Steel Construction, Wiley, New York.
  10. Thornton, W.A. (1985) Prying Action: A General Treatment, Journal of Environmental Engineering, AISC, Vol.22, pp.67-75.
  11. Yang, J.G., Park, J.H., Choi J.H., and Kim, S.M. (2011) Characteristic Behavior of a T-stub Connection under Shear, Including the Effects of Prying Action and Bolt Pretension, The 6th International Symposium on Steel Structures, KSSC, Korea, pp.1086-1092.
  12. Yang, J.G., Park, J.H., Kim, H.G., and Back, M.C. (2013). A Prying Action Force and Contact Force Estimation Model for a T-Stub Connection with High-Strength Bolts, Journal of Asian Architecture and Building Engineering, JAABE, Vol.12, No.2, pp.309-316. https://doi.org/10.3130/jaabe.12.309
  13. Faella, C., Piluso, V., and Rizzano, G. (2000) Structural steel semi-rigid connections: Theory, design, and software, CRC Press.
  14. Piluso, V., Faella, C., and Rizzano, G. (2001) Ultimate Behavior of Bolted T-stubs. I : Theoretical Model, Journal of Structural Engineering, ASCE, Vol.127, No.6, pp.686-693. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:6(686)
  15. Piluso, V., Faella, C., and Rizzano, G. (2001) Ultimate Behavior of Bolted T-stubs. II : Model Validation, Journal of Structural Engineering, ASCE, Vol.127, No.6, pp.694-704. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:6(694)
  16. Piluso, V., Rizzano, G., and Sabatino, R. (2008) Prediction of Ultimate Behaviour of Bolted T-stubs : Influence of Bolt Preloading, EUROSTEEL 2008, Graz, Austria, pp.513-518.
  17. Piluso, V., Rizzano, G., and Sabatino, R. (2009) Influence of Bolt Preloading and Flexural Effects on the Ultimate Behaviour of Bolted T-stubs, Proceedings of ICASS '09 - Sixth International Conference on Advances in Steel Structures, Hong Kong.
  18. 양재근, 김윤, 박재호(2012) 상.하부 스플릿 T 접합부의 초기회전강성 예측모델, 한국강구조학회논문집, 한국강구조학회, 제24권, 제3호, pp.279-287 (in Korean). Yang, J.G., Kim, Y., and Park, J.H. (2012) Prediction model for the initial rotational stiffness of a double split T connection, Journal of Korean Society of Steel Construction, KSSC, Vol.24, No.3, pp.279-287 (in Korean). https://doi.org/10.7781/kjoss.2012.24.3.279
  19. Richard, R.M. and Abbott, B.J. (1975) Versatile elasticplastic stress-strain formula, Journal of Engineering Mechanics Division, ASCE, 101(EM4), pp.511-515.
  20. Richard, R.M., Hsia, W.K., and Chmielowiec, M. (1988) Derived moment-rotation curves for double-framing angles, Computers and Structures, Vol.3, pp.485-94.
  21. Jaspart, J.P., and Maquoi, R. (1991) "Plastic capacity of end-plate and flange cleated connections: Prediction and design rules, Pittsburgh, USA: Second International Workshop on Connections in Steel Structures.
  22. 양재근, 김주우, 김윤(2012) 상.하부 스플릿 T 접합부의 휨강도 설계식, 한국강구조학회논문집, 한국강구조학회, 제24권, 제5호, pp.511-520. Yang, J.G., Kim, J.W., and Kim, Y. (2012) Design Formula for the Flexural Strength of a Double Split Tee Connection, Journal of Korean Society of Steel Construction, KSSC, Vol.24 No.5, pp.511-520 (in Korean). https://doi.org/10.7781/kjoss.2012.24.5.511
  23. 양재근, 백민창(2013) 고력볼트로 체결된 T-stub의 지레작용력 및 부재 접촉력 예측모델, 한국강구조학회논문집, 한국강구조학회, 제25권, 제4호, pp.409-419 (in Korean). Yang, J.G. and Beak, M.C. (2013) Prediction Models for the Prting Action Force and Contact Force of a T-stub Fastened by High-Strength Bolts, Journal of Korean Society of Steel Construction, KSSC, Vol.25 No.4, pp.409-419 (in Korean). https://doi.org/10.7781/kjoss.2013.25.4.409
  24. Girao Coelho, A.M., Simoes da Silva, L., and Bijlaard, F.S.K. (2004) Characterization of The Nonlinear Behavior of Single Bolted T-stub Connections, Proceedings of The Fifth International Workshop on Connections : Connections in Steel Structures, Behavior, Strength and Design, AISC-ECCS, Amsterdam, pp.53-120.
  25. Girao Coelho, A.M., Simoes da Silva, L., and Bijlaard, F.S.K. (2006) Finite-Element Modeling of the Nonlinear Behavior of Bolted T-stub Connections, Journal of Structural Engineering, ASCE, Vol.132, No.6, pp.918-928. https://doi.org/10.1061/(ASCE)0733-9445(2006)132:6(918)
  26. Lemonis, M.E. and Gantes, C.J. (2006) Incremental Modeling of T-Stub Connections, Journal of Mechanics of Materials and Structures, Vol.1, No.7, pp.1135-1159. https://doi.org/10.2140/jomms.2006.1.1135
  27. Reinosa, J.M., Loureiro, A., Gutierrez, R., and Moreno, A. (2008) Nonlinear Elastic-Plastic 3D Finite Element Modeling - Top and Seat Angle Connection with Double Web Angle, Proceedings of EUROSTEEL 2008, Graz, Austria, pp.501- 506.
  28. Stankiewicz, B. (2002) Experimental Tests of T-stub Joints and Refined Finite Element Method Computer Model. Proceedings of EUROSTEEL 2002, Coimbra, Portugal.

Cited by

  1. Pile-cap Connection Behavior Dependent on the Connecting Method between PHC pile and Footing vol.20, pp.3, 2016, https://doi.org/10.11112/jksmi.2016.20.3.025
  2. 비보강 확장단부판 접합부에 체결된 고장력볼트의 지레작용력 및 축방향 인장강성에 대한 해석적 연구 vol.27, pp.2, 2014, https://doi.org/10.7781/kjoss.2015.27.2.251
  3. SHN490강종의 보-기둥 접합부 형태에 따른 실험적 연구 vol.27, pp.3, 2014, https://doi.org/10.7781/kjoss.2015.27.3.311
  4. 전단탭이 없는 상·하부 스플릿 티 접합부를 적용한 강구조물의 설계 vol.28, pp.2, 2014, https://doi.org/10.7781/kjoss.2016.28.2.085
  5. 반복하중을 받는 비보강 확장 단부판 접합부의 해석 및 실험적 연구 vol.28, pp.6, 2016, https://doi.org/10.7781/kjoss.2016.28.6.439