Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Development and Shear Performance Evaluation of Vertical Joints between Precast Concrete Walls

PC 벽체 수직접합부의 개발 및 전단성능 평가

  • Moon, Kyo Young (Department of Architectural Engineering, Keimyung University) ;
  • Kim, Sung Jig (Department of Architectural Engineering, Keimyung University) ;
  • Lee, Kihak (Department of Architectural Engineering, Sejong University) ;
  • Kim, Yong Nam (Mirae Structural Engineering.co., Ltd)
  • 문교영 (계명대학교 건축공학전공) ;
  • 김승직 (계명대학교 건축공학전공 ) ;
  • 이기학 (세종대학교 건축공학과 ) ;
  • 김용남 ((주)미래구조엔지니어링)
  • Received : 2022.10.21
  • Accepted : 2022.11.07
  • Published : 2022.12.15
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Abstract

The paper introduces an experimental program for the newly developed vertical joints between Precast Concrete (PC) walls to improve their in-plane shear capacity. Compared to the existing vertical joints, two types of vertical joints were developed by increasing the transverse reinforcement ratio and improving frictional force at the joint interface. A total of four specimens including the Reinforced Concrete (RC) wall and PC walls with developed vertical joints were designed and constructed. The constructed specimens were experimentally investigated through monotonic shear tests. The observed damage, load-deformation relationship, strain and strength are investigated and compared with the cases of RC wall specimen. Experimental results indicate that the maximum force and initial stiffness of the PC wall with proposed vertical joints were decreased by comparing with those of RC wall. However, the ultimate displacement increased by up to 217.30% compared to the RC wall specimen. In addition, brittle failure did not occurred and relatively few cracks and damages occurred.

Keywords

Acknowledgement

이 논문은 2022년도 국토교통과학기술진흥원에서 국토교통기술촉진연구사업(22TBIP-C161540-02)의 연구 지원에 의해 수행되었습니다.

References

  1. Dang, L., Liang, S., Zhu, X., Zhang, M., & Song, Y., "Seismic performance of precast concrete wall with vertical energy-dissipating connection", The Structural Design of Tall and Special Buildings, Vol.30 No.2, e1820, 2021, doi: 10.1002/tal.1820 
  2. Brunesi, E., Peloso, S., Pinho, R., & Nascimbene, R., "Cyclic testing of a full-scale two-storey reinforced precast concrete wall-slab-wall structure", Bulletin of Earthquake Engineering, Vol.16 No.11 pp.5309~5339, 2018, doi: 10.1007/s10518-018-0359-z 
  3. Biswal, A., Prasad, A. M., & Sengupta, A. K., "Study of shear behavior of grouted vertical joints between precast concrete wall panels under direct shear loading", Structural Concrete, Vol.20 No.2 pp.564~582, 2019, doi: 10.1002/suco.201800064 
  4. Zhang, C., Li, H., & Gao, W., "Development of a novel friction damped joint for damage-plasticity control of precast concrete walls", Engineering Structures, 219, 110850, 2020, doi: 10.1016/j.engstruct.2020.110850 
  5. Zhi, Q., Zhou, B., Zhu, Z., & Guo, Z., "Evaluation of load-deformation behavior of reinforced concrete shear walls with continuous or lap-spliced bars in plastic hinge zone", Advances in Structural Engineering, Vol.22 No.3 pp.722~736, 2019, doi: 10.1177/1369433218798 
  6. Seismic Design of Precast Concrete Building Structures: State-of-the-art Report, fib Federation internationale du beton, 2003. 
  7. Li, J., Wang, L., Lu, Z., & Wang, Y., "Experimental study of L-shaped precast RC shear walls with middle cast-in-situ joint", The Structural Design of Tall and Special Buildings, Vol.27 No.6 e1457, 2018, doi: 10.1002/tal.1457 
  8. Sorensen, J. H., Herfelt, M. A., Hoang, L. C., & Muttoni, A. "Test and lower bound modeling of keyed shear connections in RC shear walls", Engineering Structures, Vol.155 pp.115~126, 2018, doi: 10.1016/j.engstruct.2017.11.004 
  9. Zhao, C., Zhang, Z., Wang, J., & Wang, B., "Numerical and theoretical analysis on the mechanical properties of improved CP-GFRP splice sleeve. Thin-Walled Structures", Vol.137 pp.487~501, 2019, doi: 10.1016/j.tws.2019.01.018 
  10. Joergensen, H. B., & Hoang, L. C., "Load carrying capacity of keyed joints reinforced with high strength wire rope loops", In Proceedings of fib Symposium, Vol.13, 2015. 
  11. Structural connections for precast concrete buildings. fib Federation internationale du beton, 2008. 
  12. Lee, W. J., Kim, M.., Lee, D,, Ju. H., & Kim, K.H., Seismic Performance Evaluation of Intermediate Precast Structural Walls. Journal of Next-generation Convergence Technology Association, Vol.6, No.3 pp.421~432, 2022, doi: 10.33097/JNCTA.2022.06.03.421