Strength of Interior Plat Plate-Column Connections Subjected to Unbalanced Moment

불균등 휨모멘트를 받는 플랫 플레이트-기둥 접합부의 강도산정모델

  • Published : 2002.12.01


Flat plate structures under lateral load are susceptible to the brittle shear failure of plate-column connection. To prevent such brittle failure, strength and ductility of the connection should be ensured. However, according to previous studies, current design methods do not accurately estimate the strength of plate-column connection. In the present study, parametric study using nonlinear finite element analysis was performed for interior connections. Based on the numerical results, a design method for the connection was developed. At the critical sections around the connection coexist flexural moment and shear developed by lateral and gravity loads, and maximum allowable eccentric shear stresses were proposed based on the interactions between the flexural moment and shear, The proposed method can precisely predict the strength of the connection, compared with the current design provisions. The predictability of the proposed method was verified by the comparisons with existing experiments and nonlinear numerical analyses.


  1. Luo, Y. H., and Durrani, A. J. "Equivalent Beam Model for Flat-Slab Buildings-Part 1: Interior Connections," ACI Structural Journal, Vol. 92, No. 1, January-February 1995, pp.115-124.
  2. Zee, H. L., and Moehle, J. P., "Behavior of Interior and Exterior Flat Plate Connections Subjected to Inelastic Load Reversals," Report No. UCB/EERC-84/07, College of Engineering, University of California at Berkeley, Aug 1984, pp.130.
  3. Farhey, D. N., Adin, Moshe A., and Yankelevsky, D. Z., "Flat Slab-Column Subassemblages under Lateral Loading," Journal of Structural Engineering, ASCE, Vol. 119, No.6, June 1993, pp.1903-1916.
  4. Durrani, A. J. and Du, Y., "Seismic Response of Slab-Column Connections in Existing Non-Ductile Flat-Plate building," Technical Report. NCEER-92-0010, National Center for Earthquake Engineering Research, SUNY, May 1992
  5. Morrison, D. G., and Sozen, M. A., "Response of Reinforced Concrete Plate-Column Connections to Dynamic and Static Horizontal Loads," Civil Engineering Studies, Structural Research Series, No. 490, University of Illinois, Urbana, Apr. 1981.
  6. American Concrete Institute, "Building Code Requirements for Structural Concrete," ACI 318-02. pp. 184-186, pp.213-232.
  7. Macgregor, J. G., "Reinforced concrete," 3th Ed., Prentice Hall, pp.160-164.
  8. Pan, Austin D., and Moehle, J. P., "An Experimental Study of Slab-Column Connections," ACI Structural Journal, Vol. 89, No. 6, November-December 1992, pp.626-638.
  9. Allen, F. and Darvall P., "Lateral Load Equivalent Frame," ACI Structural Journal, V. 89, No.6, July 1977, pp.294-299.
  10. Farhey, D. N., Yankelevsky, D. Z., and Adin, Moshe A., "Resistance Mechanism Model for Reinforced Concrete Flat Slab-Column Frame Connections," ACI Structural Journal, Vol. 94, No.6, November-December, 1997, pp.653-662.
  11. Hawkins, N. M., Mutchell, D., and Sheu, M. S., "Cycle Behavior of Six Reinforced Concrete Slab-Column Specimens Transferring Moment and Shear," Progress Report 1973-74 on NSF Project GI-38717, Department of Civil Engineering, University of Washington, Seattle, 1976.
  12. Ghali, A., Elmasri, Mahmoud, Z., and Diler, Walter, "Punching of Flat Plates under Static and Dynamic Horizontal Force," ACI Journal, October 1976, pp.566 -572.
  13. Islam, S., and Park, R., "Tests on Slab-Column Connections with Shear and Unbalanced Flexure," Journal of Structural Engineering, ASCE, Vol. 102, No. ST3, Mar. 1976, pp.549-568.
  14. 최경규, 황영현, 박홍근, "불균등 휨모멘트를 받는 플랫 플레이트-기둥 내부 접합부의 강도에 대한 해석연구," 한국콘크리트학회 논문집, 제14권 6호, 2002, pp.949-960.
  15. Robertson, I. N., and Durrani, A. J., "Seismic Response of Connections in Indeterminate Flat-Plate Subassemblies," Structural Research at Rice, Report. No. 41, Department of Civil Engineering, Rice University, Houston, July 1990, pp.266.
  16. ACI-ASCE Committee 352, "Recommendations for Design of Reinforced Concrete Slab-Column Connections in Monolithic Reinforced Concrete structures," ACI Structural Journal, Vol. 85, No.6, November-December 1988, pp.675-696.
  17. Moehle, J. P., Kreger, Michael E., and Leon, Roberto, "Background to Recommendations for Design of Reinforced Concrete Slab-Column Connections," ACI Structural Journal, Vol. 85, No. 6, November-December 1988, pp.636-644.
  18. 한국콘크리트학회, 대한건축학회, "콘크리트구조 설계기준," 1999년.
  19. Hanson, N. M., and Hanson, J. M., "Shear and Moment Transfer Between Concrete Slab and Column," Journal of Portland Cement Association, Research and Development Laboratories, Vol. 10, No. 1, Jan 1968, pp.2-16.