Structural Engineering and Mechanics

  • 제66권2호
  • /
  • Pages.203-215
  • /
  • 2018
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Development and evaluation of punching shear database for flat slab-column connections without shear reinforcement

  • Derogar, Shahram (European University of Lefke, Faculty of Engineering, Department of Civil Engineering) ;
  • Ince, Ceren (Civil Engineering Program, Middle East Technical University, Northern Cyprus Campus) ;
  • Mandal, Parthasarathi (School of Mechanical, Aerospace and Civil Engineering, The University of Manchester)
  • 투고 : 2017.04.17
  • 심사 : 2018.02.09
  • 발행 : 2018.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

A large body of experiments have been conducted to date to evaluate the punching shear strength of flat slab-column connections, but it is noted that only a few of them have been considered for the development of the ACI Code provisions. The limited test results used for the development of the code provisions fall short of predicting accurately the punching shear strength of such connections. In an effort to address this shortfall and to gain an insight into the factors that control the punching shear strength of flat slab-column connections, we report a qualified database of 650 punching shear test results in this article. All slabs examined in this database were tested under gravity loading and do not contain shear reinforcement. In order to justify including any test result for evaluation punching shear database, we have developed an approved set of criteria. Carefully established set of criteria represent the actual characteristics of structures that include minimum compressive strength, effective depths of slab, flexural and compression reinforcement ratio and column size. The key parameters that significantly affect the punching shear strength of flat slab-column connections are then examined using ACI 318-14 expression. The results reported here have paramount significance on the range of applicability of the ACI Code provision and seem to indicate that the ACI provisions do not sufficiently capture many trends identified through regression of the principal parameters, and fall on the unsafe side for the prediction of the punching shear strength of flat slab-column connections.

키워드

참고문헌

  1. Abdullah, A., Bailey, C. and Wu, Z. (2013), "Tests investigating the punching shear of a column-slab connection strengthened with non-prestressed or prestressed FRP plates", Constr. Build. Mater., 48, 1134-1144. https://doi.org/10.1016/j.conbuildmat.2013.07.012
  2. ACI 318-14 (2014), Building Code Requirements for Structural Concrete (ACI 318M-14) and Commentary (ACI 318RM-14), American Concrete Institute Farmington Hills, MI, U.S.A.
  3. ACI-ASCE Committee 326 (1962), "Shear and diagonal tension, part 3-slabs and footings", ACI J., 353-395.
  4. Alam, A.K.M.J., Amanat, K.M. and Seraj, S.M. (2009), "An experimental study on punching shear behaviour of concrete slabs", Adv. Struct. Eng., 12(2), 257-265. https://doi.org/10.1260/136943309788251650
  5. Alander, C. (2000), "Punching prevention in flat RC slabs", Proceedings of the International Workshop on Punching Shear Capacity of RC Slabs, Royal Institute of Technology, Stockholm, Sweden.
  6. Alexander, S.D.B. and Simmonds, S.H. (1992), "Punching shear tests of concrete slab-column joints containing fibre reinforcement", ACI Struct. J., 89(4), 425-432.
  7. Aslani, F., Lino Maia, L. Santos, J. (2017), "Effect of specimen geometry and specimen preparation on the concrete compressive strength test", Struct. Eng. Mech., 62(1), 1-12. https://doi.org/10.12989/sem.2017.62.1.001
  8. Aziz, A.H., Kareem, S.S. and Sohaib, B. (2013), "Experimental study for punching shear behavior in RC flat plate with hybrid high strength concrete", J. Eng. Develop., 17(3), 95-109. https://doi.org/10.4186/ej.2013.17.1.95
  9. Bazant, Z.P. and Cao, Z. (1987), "Size effect in punching shear failure of slabs", ACI Struct. J., 84(1), 44-53.
  10. Beutel, R. and Hegger, J. (2002), "The effect of anchorage on the effectiveness of the shear reinforcement in the punching zone", Cement Concrete Res., 24(6), 539-549. https://doi.org/10.1016/S0958-9465(01)00070-1
  11. Binici, B. and Bayrak, O. (2003), "Punching shear strengthening of reinforced concrete flat plates using carbon fiber reinforced polymers", J. Struct. Eng., 129(9), 1173-1182. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:9(1173)
  12. Birkle, G. and Dilger, W.H. (2008), "Influence of slab thickness on punching shear strength", ACI Struct. J., 105(2), 180-188.
  13. Bompa, D.V. (2011) "Behaviour of column-flat slab connection", Ph.D. Dissertation, Technical University of Clujnapoca, Romania.
  14. Broms, C.E. (2000), "Elimination of flat plate punching failure mode", ACI Struct. J., 97(1), 94-101.
  15. Broms, C.E. (1990), "Punching of flat plates-a question of concrete properties in biaxial compression and size effect", ACI Struct. J., 87(3), 292-304.
  16. Caldenety, A.P., Lavaselli, P.P., Peiretti, H.C. and Fernandez, F.A. (2013), "Influence of stirrup detailing on punching shear strength of flat slabs", Eng. Struct., 49, 855-865. https://doi.org/10.1016/j.engstruct.2012.12.032
  17. CEB-FIP Model Code (1990), Design Code, Comitee Euro-International de Beton Bulletin D'Information, No. 203-305, Lausanne, Switzerland.
  18. Chana, P.S. and Desai, S.B. (1992), "Design of shear reinforcement against punching", Struct. Eng., 70(9), 159-164.
  19. Chen, C.C. and Li, C.Y. (2000), "An experimental study on the punching shear behaviour of RC slabs strengthened by GFRP", Proceedings of the Royal Institute of Technology, Stockholm, Sweden.
  20. Cheng, M.Y. and Parra-Montesinos, G. (2010), "Evaluation of steel fiber reinforcement for punching shear resistance in slabcolumn connections. Part I: Monotonically increased loading", ACI Struct. J., 107(1), 101-109.
  21. Cho, Y.S., Noh, S.Y. and Kim, H.W. (2010), "Punching shear reinforcing using studs with steel plates in reinforced concrete flat plates", Mag. Con. Res., 61(9), 721-729. https://doi.org/10.1680/macr.2008.61.9.721
  22. Corley, W.G. and Hawkins, N.M. (1968), "Shearhead reinforcement for slabs", ACI J. Proc., 65(10), 811-824.
  23. Costa, V.C.M., Oliveira D.C., Gomes, R.B. and Guimaraes, G.N. (2012), "Punching shear in reinforced concrete flat slabs column rectangularity", REEC-Revist. Eletron. Engenhar. Civil, 5(1), 36-46.
  24. Derogar, S. (2014), "Behaviour of slab column connections under gravity loads", Ph.D. Dissertation, The University of Manchester, U.K.
  25. Duarte, I., Ramos, A.M.P. and Lucio, V.J.G. (2008), Stengthening of Flat Slabs with Transverse Reinforcement, CCC 2008-Challenges for Civil Construction, Torres Marques, FEUP, Porto.
  26. Ebead, U.A. and Marzouk, H. (2005), "Tension-stiffening model for FRP-strengthening RC concrete two-way slabs", Mater. Struct., 38(2), 193-200. https://doi.org/10.1007/BF02479344
  27. Einpaul, J., Bujnak, J., Ruiz, M.F. and Muttoni, A. (2016), "Study on influence of column size and slab slenderness on punching strength", ACI Struct. J., 113(1), 135-145.
  28. El-Ghandour, A.W., Pilakoutas, K. and Waldron, P. (2003), "Punching shear behavior of fiber reinforced polymers reinforced concrete flat slabs: Experimental study", ASCE J. Compos. Constr., 7(3), 258-265. https://doi.org/10.1061/(ASCE)1090-0268(2003)7:3(258)
  29. Elshafey, A.A., Rizk, E., Marzouk, H. and Haddara, M.R. (2011), "Prediction of punching shear strength of two-way slabs", Eng. Struct., 33(5), 1742-1753. https://doi.org/10.1016/j.engstruct.2011.02.013
  30. Erdogan, H., Ozcebe, G. and Binici, B. (2007), "A new CFRP strengthening technique to enhance punching shear strength of RC slab-column connections", Proceedings of the Asia-Pacific on FRP in Structures.
  31. Esfahani, M.R., Kianoush, M.R. and Moradi, A.R. (2009), "Punching shear strength of interior slab-column connections strengthened with carbon fiber reinforced polymer sheets", Eng. Struct., 31(7), 1535-1542. https://doi.org/10.1016/j.engstruct.2009.02.021
  32. Farghaly, A.S. and Tamon Ueda, T. (2011), "Prediction of punching shear strength of two-way slabs strengthened externally with FRP sheets", J. Compos. Constr., 15(2), 181-193. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000177
  33. Faria, D.M.V., Lucio, V.J.G. and Ramos, A.P. (2011), "Strengthening of flat slabs with post-tensioning using anchorages by bonding", Eng. Struct., 33(6), 2025-2043. https://doi.org/10.1016/j.engstruct.2011.02.039
  34. Ferreira, M.P., Melo, G.S., Regan, P.E., Robert, L. and Vollum, R.L. (2014), "Punching of reinforced concrete flat slabs with double-headed shear reinforcement", ACI Struct. J., 111(2), 363-274.
  35. FIB Bulletin 12 (2001), Punching of Structural Concrete Slabs: Technical Report, Fib Federation Internationale du Beton.
  36. Gardner, N.J. (1996), "Punching shear provisions for reinforced and pressurised concrete flat slabs", Can. J. Civil Eng., 23(2), 502-510. https://doi.org/10.1139/l96-054
  37. Ghannoum, C.M. (1998), "Effect of high-strength concrete on the performance of slab-column specimens", M.Sc. Dissertation, McGill University, Montreal, Canada.
  38. Gouveia, N., Fernandes, N., Faria, D., Ramos, A. and Lucio, V. (2013), "Punching of steel fibre reinforced concrete flat slabs", Proceedings of the fib Symposium, Tel-Aviv.
  39. Grimaldi, A., Meda, A. and Rinaldi, Z. (2013), "Experimental behaviour of fibre reinforced concrete bridge decks subjected to punching shear", Compos. Part B Eng., 45(1), 811-820. https://doi.org/10.1016/j.compositesb.2012.09.044
  40. Guidotti, R., Ruiz, M.F. and Muttoni, A. (2011), "Behaviour and design of slab-column joints", Proceedings of the Fib Symposium Prague, Session 2B-1: Construction Technology.
  41. Habibi, F. (2012), "Post-punching shear response of two-way slabs", Ph.D. Dissertation, McGill University, Montreal, Canada.
  42. Hafidi, M., Kharchi, F. and Lefkir, A. (2013), "Neuro-fuzzy optimisation to model the phenomenon of failure by punching of a slab-column connection without shear reinforcement" Struct. Eng. Mech., 47(5), 679-700. https://doi.org/10.12989/sem.2013.47.5.679
  43. Hamada, S., Yang, Q. and Mao, M. (2008), "Evaluation of punching shear strength of reinforced concrete slabs based on database", J. Adv. Concrete Technol., 6(1), 205-214. https://doi.org/10.3151/jact.6.205
  44. Harajli, M.H., Soudki, K.A. and Kudsi, T. (2006), "Strengthening of interior slab-column connections using a combination of FRP sheets and steel bolts", J. Compos. Constr., 10(5), 399-409. https://doi.org/10.1061/(ASCE)1090-0268(2006)10:5(399)
  45. Hasan, M., Ahmed, E. and Benmokrane, B. (2013a), "Punchingshear strength of normal and high-strength two-way concrete slabs reinforced with GFRP bars", J. Compos. Constr., 17(6), 1-12. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000344
  46. Hassan, M., Ahmed, E.A. and Benmokrane, B. (2013b), "Punching-shear strength of glass fiber-reinforced polymer reinforced concrete flat slabs", Can. J. Civil Eng., 40(10), 951-960. https://doi.org/10.1139/cjce-2012-0177
  47. Hawkins, N.W., Criswell, U.M.E. and Roll, F. (1974), Shear Strength of Slabs without Shear Reinforcement, Shear in Reinforced Concrete (SP-42), American Concrete Institute, Detroit, MI, U.S.A., 677-720.
  48. Hegger, J., Ricker, M. And Sherif, A.G. (2009), "Punching strength of reinforced concrete footings", ACI Struct. J., 106(5), 706-716.
  49. Heinzmann, D., Etter, S., Villiger, S. and Jaeger, T. (2012), "Punching tests on reinforced concrete slabs with and without shear reinforcement", ACI Struct. J., 109(6), 787-794.
  50. Hoang, L.C. (2011), "Punching shear tests on RC slabs with different initial crack patterns", Proc. Eng., 14, 1183-1189. https://doi.org/10.1016/j.proeng.2011.07.148
  51. Hughes, B.P. and Xiao, Y. (1995), "Flat slabs with fibre or link reinforcement at slab-column connections", Proceedings of the Institution of Civil Engineers and Buildings, 110(3), 308-321. https://doi.org/10.1680/istbu.1995.27875
  52. Hunchate, S.R., Chundupalle, S., Ghorpade, V.G. and Venkata, R.T.C. (2014), "Beehavior of simply suported high performance concrete two way slabs in punching shear", Int. J. Emerg. Trend. Eng. Develop., 4(2), 775-786.
  53. Inacio, M.M.G., Ramos, A.P., Lucio, V. and Faria, D.M.V. (2013), "Punching of high strength concrete flat slabs: Experimental investigation", Proceedings of the Fib symposium, Tel Aviv.
  54. Israel, R. (1959), "Experimental investigation of flat floor systems", ACI J. Proc., 56(8), 153-166.
  55. Kamaraldinm, K. (1990), "Punching shear and moment transfer in reinforced concrete flat slabs", Ph.D. Dissertation, The Polytechnic of Central London, U.K.
  56. Kim, Y.J., Longworth, J.M., Wight. R.G. and Green, M.F. (2009), "Punching shear of two-way slabs retrofitted with prestressed or non-prestressed CFRP sheets", J. Reinf. Plast. Compos., 29(8), 1206-1223. https://doi.org/10.1177/0731684409103143
  57. Kinnuen, S. and Nylander, H. (1960), Punching of Concrete Slab without Shear Reinforcement, Transaction of the Royal Institute of Technology, Stockholm, Sweden.
  58. Kruger, G., Burdet, O. and Favre, R. (2000), "Punching strength of RC flat slabs with moment transfer", Proceedings of the International Workshop on Punching Shear Capacity of RC Slabs, Royal Institute of Technology, Stockholm, Sweden.
  59. Kunz, J., Fernandez R.M. and Muttoni, A. (2008), "Enhanced safety with post-installed punching shear reinforcement", Proceedings of the FIB Symposium, Amsterdam, the Netherlands.
  60. Lan, R.B., Teng, S. and Cheong, H.K. (2002), "Effectiveness of shear reinforcement in slabs under punching loads", Proceedings of the 27th Conference on Our World in Concrete & Structures, Singapore, August.
  61. Lawler, N. And Polak, M.A. (2011), "Development of FRP shear bolts for punching shear retrofit of reinforced concrete slabs", J. Compos. Constr., 15(4), 591-601. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000188
  62. Li, K.K.L. (2000), "Influence of size on punching shear strength of concrete slabs", M.Sc. Dissertation, McGill University, Montreal, Canada.
  63. Li, X. (1997), "Punching shear behaviour of slab-column connections", Ph.D. Dissertation, The University of Sheffield, U.K.
  64. Li, X. (1997), "Punching shear behaviour of slab-column connections", Ph.D. Dissertation, The University of Sheffield, U.K.
  65. Liana, L.J., Borges, L.L.J., Melo, G.S. and Gomes, R.B. (2013), "Punching shear of reinforced concrete flat plates with openings", ACI Struct. J., 110(4), 547-556.
  66. Lips, S. and Muttoni, A. (2010), "Experimental investigation of reinforced concrete slabs with punching shear reinforcement", Proceeding of the 8th fib-PhD Symposium, Copenhagen, Denmark.
  67. Loo, Y.C. and Chiang, C.L. (1993), "Methods of punching shear strength analysis of reinforced concrete flat plates-a comparative study", Struct. Eng. Mech., 1(1), 75-86. https://doi.org/10.12989/sem.1993.1.1.075
  68. Lovorovich, J.S. and McLean, D.I. (1990), "Punching shear behaviour of slabs with varying span-depth ratios", ACI Struct. J., 87(5), 507-512.
  69. Marzouk, H. and Jiang, D. (1997), "Experimental investigation on shear enhancement types for high-strength concrete plates", ACI Struct. J., 94(1), 49-58.
  70. Marzouk, H., Emam, M. and Hilal, M.S. (1998), "Effect of highstrength concrete slabs on the behaviour of slab-column connections", ACI Struct. J. Proc., 95(3), 227-237.
  71. Marzouk, H., Emam, M. and Hilal, M.S. (1996), "Effect of highstrength concrete columns on the behaviour of slab-column connections", ACI Struct. J. Proc., 93(5), 545-554.
  72. Marzouk, H. and Hussein, A. (1991), "Experimental investigation on the behaviour of high-strength concrete slabs", ACI Struct. J. Proc., 88(6), 701-713.
  73. Matthys, S. and Taerwe, L. (2000), "Verification of the punching resistance of concrete slabs reinforced with FRP grids", Proceedings of the International Workshop on Punching Shear Capacity of RC Slabs, Royal Institute of Technology, Stockholm, Sweden.
  74. McHarg, P.J., Cook, W.D., Mitchell, D. and Young-Soo, Y. (2000), "Benefits of concentrated slab reinforcement and steel fibers on performance of slab-column connections", ACI Struct. J., 97(2), 225-234.
  75. Meisami, M.H., Mostofinejad, D. and Nakamura, H. (2013), "Punching shear strengthening of two-way flat slabs with CFRP grids", J. Compos. Constr., 18(2), 1-10.
  76. Michel, L., Ferrier, E., Bigaud, D. and Agbossou, A. (2007), "Criteria for punching failure mode in RC slabs reinforced by externally bonded CFRP", Compos. Struct., 81(3), 438-449. https://doi.org/10.1016/j.compstruct.2006.09.008
  77. Moe, J. (1961), Shearing Strength of Reinforced Concrete Slabs and Footings under Concentrated Loads, Development Department Bulletin D 47, PCA Research and Development Laboratories, Illinois, U.S.A.
  78. Mokhtar, A., Ghali, A. and Dilger, W. (1985), "Stud shear reinforcement for flat concrete plates", ACI J. Proc., 82(5), 676-683.
  79. Mowrer, R.D. and Vanderbilt, M.D. (1967), "Shear strength of lightweight aggregate reinforced concrete flat plates", J. ACI, 64(11), 722-727.
  80. Muttoni, A., Burdet, O. and Guandalini, S. (2009), "Punching tests of slabs with low reinforcement ratios", ACI Struct. J., 106(1), 87-95.
  81. Nguyen-Minh, L., Rovanak, M., Tran-Quoc, T. and Nguyenkim, K. (2011), "Punching shear resistance of steel fiber reinforced concrete flat slabs", Proc. Eng., 14, 1830-1837. https://doi.org/10.1016/j.proeng.2011.07.230
  82. Nightingale, R.I. (1970), "Structural interaction of circular reinforced flat slabs", Ph.D. Dissertation, University of Arizona, U.S.A.
  83. Oliveira, D.C., Gomes, R.B. and Melo, G.S. (2014), "Punching shear in reinforced concrete flat slabs with hole adjacent to the column and moment transfer", Revista IBRACON de Estruturas e Materiais, 7(3), 414-467. https://doi.org/10.1590/S1983-41952014000300006
  84. Oliveira, D.R., Melo, G.S. and Regan, P.E. (2000), "Punching strengths of flat plates with vertical or inclined stirrups", ACI Struct. J., 97(3), 485-491.
  85. Oliveira, D.R.C., Regan, P. and Melo, G.S.S. (2004), "Punching resistance of RC slabs with rectangular column", Mag. Concrete Res., 56(3), 123-138. https://doi.org/10.1680/macr.2004.56.3.123
  86. Osman, M., Marzouk, H. and Helmy, S. (2000), "Behavior of high-strength lightweight concrete slabs under punching loads", ACI Struct. J., 97(3), 492-498.
  87. Ospina, C.E., Alexander, S.D.B. and Cheng, J.J. (2003), "Punching of two-way concrete slabs with fiber-reinforced polymer reinforcing bars or grids", ACI Struct. J., 100(5), 589-598.
  88. Oukaili, N.K. and Salman, T.S. (2014), "Punching shear strength of reinforced concrete flat plates with openings", J. Eng., 20(1), 1-20.
  89. Ozawa, M., Uchida, Y. and Koyanagi, W. (2000), "Study on the process on punching shear failure of RC slabs", Proceedings of the International Workshop on Punching Shear Capacity of RC Slabs, Royal Institute of Technology, Stockholm, Sweden.
  90. Ozden, S., Ersoy, U. and Ozturan, T. (2006), "Punching shear tests of normal- and high-strength concrete flat plates", Can. J. C. Eng., 33(11), 1389-1400. https://doi.org/10.1139/l06-089
  91. Papanikolaou, K.V., Tegos, I.A. and Kappos, A.J. (2005), "Punching shear testing of reinforced concrete slabs, and design implications", Mag. Concrete Res., 57(3), 167-177. https://doi.org/10.1680/macr.2005.57.3.167
  92. Pisanty, A. (2005), "Eurocodes and North American codes predictions of punching shear capacity in view of experimental evidence", Spec. Publ., SP-232, 257-276.
  93. Radik, M.J., Erdogmus, E. and Schafer, T. (2011), "Strengthening two-way reinforced concrete floor slabs using polypropylene fiber reinforcement", J. Mater. C. Eng., 23(5), 562-571. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000206
  94. Ramos, A.P., Lucio, V.J.G. and Regan, P.E. (2011), "Punching of flat-slabs with in-plane forces", Eng. Struct., 33(3), 894-902. https://doi.org/10.1016/j.engstruct.2010.12.010
  95. Rankin, G.I.B. and Long, A.E. (1987), "Predicting the punching strength of conventional slab-column specimens", Proceedings of the Institution of Civil Engineers, Part I, 82(1), 327-346. https://doi.org/10.1680/iicep.1987.382
  96. Regan, P.E. (1986), "Symmetric punching of reinforced concrete slabs", Mag. Concrete Res., 38(136), 115-128. https://doi.org/10.1680/macr.1986.38.136.115
  97. Regan, P.E. and Samadian. (2001), "Shear reinforcement against punching in reinforced concrete flat slabs", Struct. Eng., 79(10), 24-31.
  98. Regan, P.E. (2004), "Punching of slabs under highly concentrated loads", Proceedings of the Institution of Civil Engineers, Structures and Buildings.
  99. Reineck, K.H., Bentz, E.C., Fitik, B., Kuchma, D.A. and Bayrak, O. (2013), "ACI-DAfStb database of shear tests on slender reinforced concrete beams without stirrups", ACI Struct. J., 110(5), 867-876.
  100. Reineck, K.H., Kuchma, D.A., Kim, K.S. and Marx, S. (2003), "Shear database for reinforced concrete members without shear shear reinforcement", ACI Struct. J., 100(2), 240-249.
  101. Rizk, E. and Marzouk, H. (2011), "Experimental validation of minimum flexural reinforcement for thick high-strength concrete plates", ACI Struct. J., 108(3), 332-340.
  102. Rizk, E., Marzouk, H. and Hussein, A. (2011), "Punching shear of thick plates with and without shear reinforcement", ACI Struct. J., 108(5), 581-591.
  103. Roll, F., Zaidi, S.T.H., Sabnis, G. and Chuang, K. (1971), "Shear resistance of perforated reinforced concrete slabs", ACI Publ., SP-30-4, 77-101.
  104. Ruiz, M.F. and Muttoni, A. (2010) , Performance and design of punching shear reinforcement systems", Proceedings of the 3rd fib International Congress, Washington, U.S.A.
  105. Sagaseta, J., Ruiz, M.F., Muttoni, A. and Tassinari, L. (2011), "Non-axis-symmetrical punching shear around internal columns of RC slabs without transverse reinforcement", Mag. Concrete Res., 63(6), 441-457. https://doi.org/10.1680/macr.10.00098
  106. Sakinis, D. and Vainiunas, P. (2009), "Influence of longitudinal reinforcement on the punching shear resistance of reinforced concrete slabs/Isilginio armavimo poveikis gelzbetonines plokstes praspaudziamajai laikomajai galiai", Eng. Struct. Technol., 1(2), 73-79. https://doi.org/10.3846/skt.2009.09
  107. Scordelis, A.C., Lin, T.Y. and Mayo, H.R. (1958), "Shearing strength of prestressed lift slabs", J. Am. Concrete Inst., 55(10), 485-506.
  108. Sissakis, K. and Sheikh, S.A. (2007), "Strengthening concrete slabs for punching shear with carbon fiber-reinforced polymer laminates", ACI Struct. J., 104(1), 49-59.
  109. Sistonen, E. and Huovinen, S. (2011), Results of the New Reinforcing Technology Project.
  110. Smadi, M.M. and Bani Yasin, I.S. (2008), "Behaviour of highstrength fibrous concrete slab-column connections under gravity and lateral loads", Constr. Build. Mater., 22(8), 1863-1873. https://doi.org/10.1016/j.conbuildmat.2007.04.023
  111. Soudki, K., Ahmed, K., El-Sayed, A.K. and Vanzwol, T. (2012), "Strengthening of concrete slab-column connections using CFRP strips", J. King Saud Univ.-Eng. Sci., 24(1), 25-33. https://doi.org/10.1016/j.jksus.2010.08.006
  112. Stein, T., Ghali, A. and Dilger, W. (2007), "Distinction between punching and flexural failure modes of flat plates", ACI Struct. J., 104(3), 357-365.
  113. Subedi, N.K. and Baglin, P.S. (2003), "Design of slab-column junctions in flat slabs", Proceedings of the ICE-Structures and Buildings, 156(3), 319-331.
  114. Swamy, R.N. and Ali, S A.R. (1982), "Punching shear behaviour of reinforced slab-column connections made with steel fiber concrete", ACI J. Proc., 79(5), 392-406.
  115. Talbot, A.N. (1913), Reinforced Concrete Wall Footings and Column Footings, Engineering Experiment Station, University of Illinois, Urbana, Illinois, U.S.A.
  116. Teng, S., Cheong, H.K., Kuang, K.L. and Geng, J.Z. (2004), "Punching shear strength of slabs with openings and supported on rectangular columns", ACI Struct. J., 101(5), 678-687.
  117. Theodorakopoulos, D.D. and Swamy, R.N. (2002), "Ultimate punching shear strength analysis of slab-column connections", Cement Concrete Compos., 24(6), 509-521. https://doi.org/10.1016/S0958-9465(01)00067-1
  118. Vaz, A.P.R., Gomes, R.B. and Shehata, L.C.D. (2009), "Study the minimum shear reinforcement of reinforcement of reinforced concrete flats slabs", Revista IBRACON de Estruturas e Materiais, 2(1), 1-24. https://doi.org/10.1590/S1983-41952009000100001
  119. Widianto, B.O. and Jirsa, J.O. (2009), "Two-way shear strength of slab-column connections: Reexamination of ACI 318 provisions", ACI Struct. J., 106(2), 160-170.
  120. Worle, P. (2014), "Enhanced shear punching capacity by the use of post installed concrete screws", Struct. Eng., 60, 41-51. https://doi.org/10.1016/j.engstruct.2013.12.015
  121. Yamada, T., Nanni, A. and Endo, K. (1992), "Punching shear resistance of flat slabs: Influence of reinforcement type and ratio", ACI Struct. J., 88(4), 555-563.
  122. Yang, J.M., Yoon, Y.S., Cook, W.D. and Mitchell, D. (2010), "Punching shear behaviour of two-way slabs reinforced with high strength steel", ACI Struct. J., 107(4), 468-475.
  123. Yitzhaki, D. (1966), "Punching strength of reinforced concrete slabs", J. Am. Concrete Inst., 63(5), 527-542.
  124. Youm, K.S., Kim, J.J. and Moon, J. (2014), "Punching shear failure of slab with lightweight aggregate concrete (LWAC) and low reinforcement ratio", Constr. Build. Mater., 65, 92-102. https://doi.org/10.1016/j.conbuildmat.2014.04.097

피인용 문헌

  1. Experimental study of punching shear in post-tensioned slabs with unbonded tendons vol.79, pp.4, 2018, https://doi.org/10.12989/sem.2021.79.4.507