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이방향 반복가력을 받는 HPFRCC로 보강한 모서리 접합부의 내진거동 평가

Seismic Behavior of Corner Joints Reinforced with HPFRCC Subjected to Bidirectional Cyclic Loads

  • Han, Sang Whan (Department of Architectural Engineering, Hanyang University) ;
  • Lee, Sang-ho (Department of Architectural Engineering, Hanyang University)
  • 투고 : 2021.10.18
  • 심사 : 2022.02.15
  • 발행 : 2022.02.28

초록

This study aims to investigate the seismic behavior of bidirectionally loaded non-ductile beam-column corner joints with and without minimum joint transverse reinforcement. Four full-scale specimens were built and tested; test variables were applied a minimum joint transverse reinforcement and a high-performance fiber-reinforced cementitious composites (HPFRCC). The energy dissipation capacity and cyclic strength retention capacity were estimated for each test specimen. During testing, the longitudinal reinforcement yielding, and the joint shear strain were monitored. The results revealed that the application of HPFRCC is an effective means to improve the seismic behavior of non-ductile corner joints irrespective of the existence of minimum joint transverse reinforcement.

키워드

과제정보

이 연구는 2019년도 정부(국토교통부)의 재원으로 국토교통과학기술 진흥원 (21CTAP-C152179-03)과 한국연구재단 (NRF-2020R1A2C2010548) 의 지원으로 수행된 것임.

참고문헌

  1. ACI 318-14. (2014). Building Code requirements for Structural Concrete and Commentary. American Concrete Institute. Farmington, Mi, USA.
  2. ACI Committee 352. (2002). Recommendations for Design of Beam-Column Connections in Monolithic Reinforced Concrete Structures. American Concrete Institute. Farmington, Mi, USA.
  3. ASCE. (2017). Seismic Evaluation and Retrofit of Existing Buildings. ASCE 41-17, American Society of Civil Engineers, Reston, VA.
  4. Bayhan, B., Ozdemir, G., & Gulkan, P. (2017). Impact of joint modeling approach on performance estimates of older-type RC buildings. Earthquake Spectra, 33(3):1101-1123. https://doi.org/10.1193/092616eqs159m
  5. Celik, O. C., & Ellingwood, B. R. (2008). Modeling beam-column joints in fragility assessment of gravity load designed reinforced concrete frames. Journal of Earthquake Engineering, 12(3):357-381. https://doi.org/10.1080/13632460701457215
  6. De Risi, M. T., Ricci, P., Verderame, G. M., & Manfredi, G. (2016). Experimental assessment of unreinforced exterior beam-column joints with deformed bars. Engineering Structures, 112, 215-232. https://doi.org/10.1016/j.engstruct.2016.01.016
  7. FEMA 461. (2007). Interim Testing Protocols for Determining the Seismic Performance Characteristics of Structural and Nonstructural Components. Federal Emergency Management Agency. Washington, D.C., USA.
  8. Filiatrault, A., Pineau, S., & Houde, J. (1995). Seismic behavior of steel fiber-reinforced concrete interior beam-column joints. ACI Structural Journal, 92, 543-552.
  9. Fischer, G., & Li, V. C. (2003). Deformation behavior of fiber-reinforced polymer reinforced engineered cementitious composite (ECC) flexural members under reversed cyclic loading conditions. ACI Structural Journal 100, 25-35.
  10. Gefken, P. R., & Ramey, M. R. (1989). Increased joint hoop spacing in type 2 seismic joints using fiber reinforced concrete. ACI Structural Journal, 86, 168-172.
  11. Hanson, N. W., & Conner HW. (1967). Seismic Resistance of Reinforced Concrete Beam-Column Joints. Journal of the Structural Division, 93(5): 533-560. https://doi.org/10.1061/JSDEAG.0001785
  12. Hassan, W. M. (2011). Analytical and experimental assess ment of seismic vulnerability of beam-column joints without transverse reinforcement in concrete buildings. Ph.D. University of California, Berkeley. CA.
  13. Han, S. W., & Jee, N. Y. (2005). Seismic behaviors of columns in ordinary and intermediate moment resisting concrete frames. Engineering Structures, 27(6): 951-962. https://doi.org/10.1016/j.engstruct.2005.01.012
  14. Han, S. W., Kwon, O.-S., & Lee, L.-H. (2004). Evaluation of the seismic performance of a three-story ordinary moment-resisting concrete frame. Earthquake Engineering and Structural Dynamics, 33(6): 669-685. https://doi.org/10.1002/eqe.367
  15. Han, S. W., & Lee, C. S. (2020). Cyclic behavior of RC OMF beam-corner column joints under unidirectional and bidirectional loadings, Engineering Structures, 224:111304. https://doi.org/10.1016/j.engstruct.2020.111304
  16. Han, S. W., Lee, C. S., Kwon, H. W., Lee, K. H., & Shin, M. S. (2015). Behaviour of fibre-reinforced beams with Diagonal reinforcement. Magazine of Concrete Research, 67(24); 1287-1300. https://doi.org/10.1680/macr.14.00194
  17. JSCE. (2008). Recommendations for design and construction of high performance fiber reinforced cement composites with multiple fine cracks. Japan Society of Civil Engineers. Concrete engineering, series no. 82.
  18. Korea Standards Association. (2018). Method of tensile test for metallic materials. KS B 0802. Korea.
  19. Korea Standards Association. (2014). Standard test methods for making and curing concrete specimens. KS F 2403. Korea.
  20. Korea Standards Association. (2017). Standard Test Method for Compressive Strength of Concrete. KS F 2405. Korea.
  21. Para-Montesinos, G. J., Peterfreund, S. W., & Chao, S. H. (2005). Highly damage-tolerant beam-column joints through use of high-performance fiber-reinforced cement composites. ACI Structural Journal, 102(3), 487-495.
  22. Park, S., & Mosalam, K. M. (2013). Experimental investigation of nonductile RC corner beam-column joints with floor slabs. Journal of Structural Engineering, 139(1): 1-14. https://doi.org/10.1061/(asce)st.1943-541x.0000591
  23. Ricci. P., De Luca, F., & Verderame, G. M. (2010). 6th April 2009 L'Aquila earthquake, Italy: reinforced concrete building performance. Bulletin of Earthquake Engineering, 9(1): 285-305. https://doi.org/10.1007/s10518-010-9204-8
  24. Saghafi MH, Shariatmadar H. (2018). Enhancement of seismic performance of beam-column joint connections using HPFRCC. Construction and Building Materials, 180, 665-680. https://doi.org/10.1016/j.conbuildmat.2018.05.221
  25. Quang, K. M., Phuoc Dang, V. B., Han, S. W., Shin, M., & Lee, K. (2016). Behavior of high-performance fiber-reinforced cement composite columns subjected to horizontal biaxial and axial loads. Construction and Building Materials, 106; 89-101 https://doi.org/10.1016/j.conbuildmat.2015.12.087
  26. Qudah, S., & Maalej, M. (2014). Application of engineered cementitious composites (ECC) in interior beam-column connections for enhanced seismic resistance. Engineering Structures, 69, 235-245. https://doi.org/10.1016/j.engstruct.2014.03.026
  27. Zhou, J., Pan, J., & Leung, C. K. Y. (2015). Mechanical behavior of fiber-reinforced engineered cementitious composites in uniaxial compression. Journal of Materials in Civil Engineering, 27, 04014111 https://doi.org/10.1061/(ASCE)MT.1943-5533.0001034