Effective compressive strengths of corner and exterior concrete columns intersected by slabs with different compressive strengths

• Autorzy: Choi S. H. , Lee D. H. , Hwang J. H. , Oh J. Y. , Kim K. S. , Kim S. H.

Identyfikatory

DOI

10.1016/j.acme.2017.11.001

• Języki publikacji: EN

Abstrakty

EN

In modern high-rise reinforced concrete buildings, high strength concrete (HSC) has been typically used for column members, while normal strength concrete (NSC) has been generally used for floor slabs. This study proposed a new analytic approach that can reasonably estimate the effective compressive strengths of corner and exterior column members intersected by lower strength concrete slabs. The proposed model was theoretically derived based on strain distributions and constraint conditions at an interface between column and slab members. In addition, the compressive strength test results of isolated, exterior, and corner columns intersected by lower strength concrete slabs reported in the existing literature were compared to the effective compressive strengths estimated by the proposed model. The proposed model provided good accuracy on the effective compressive strengths of the column members intersected by slabs cast with lower concrete compressive strengths. It was also shown that the proposed model successfully reflects the effects of the aspect ratio between the slab thickness and the column width on the effective compressive strengths of the test specimens and their failure modes that changed significantly according to the column–slab compressive strength ratio.

Słowa kluczowe

EN

effective compressive strength; column; slab; joint; reinforced concrete

PL

wytrzymałość na ściskanie; kolumna; płyta żelbetowa

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 3
• Strony: 731--741
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Choi S. H.

• Department of Architectural Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea

autor

Lee D. H.

• Department of Civil Engineering, Nazarbayev University, 53 Kabanbay Batyr Ave., Astana 010000, Republic of Kazakhstan

autor

Hwang J. H.

• Department of Architectural Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea

autor

Oh J. Y.

• Department of Architectural Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea

autor

Kim K. S.

• Department of Architectural Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea

autor

Kim S. H.

• Power & Energy Plant, Hyundai Engineering Co., Ltd., 75 Yulgok-ro, Jongno-gu, Seoul 110-920, South Korea

Bibliografia

• [1] S.C. Lee, P. Mendis, Behavior of high-strength concrete corner columns intersected by weaker slabs with different thicknesses, ACI Struct. J. 101 (1) (2004) 11–18.
• [2] W.L. Gamble, J.D. Klinar, Tests of high-strength concrete columns with intervening floor slabs, ASCE J. Struct. Eng. 117 (5) (1991) 1462–1476.
• [3] C.C. Shu, N.M. Hawkins, Behavior of columns continuous through concrete floors, ACI Struct. J. 89 (4) (1992) 405–414.
• [4] ACI Committee 318, Building Code Requirements for Structural Concrete and Commentary, American Concrete Institute, 2014.
• [5] KCI-M-12, Design Specifications for Concrete Structures, Korea Concrete Institute, 2012.
• [6] Canadian Standards Association, Design of Concrete Structure, Canadian Standards Association, 2004.
• [7] M.K. Kayani, Load Transfer from High-Strength Concrete Columns Through Lower Strength Concrete Slabs, (Ph.D. thesis), University of Illinois, Urbana-Champaign, III, 1992.
• [8] G. Portella, Transmission of High-Strength Concrete Column Loads Through Normal-Strength Concrete Slabs, (Master's thesis), University of Melbourne, Victoria, 2002.
• [9] A.C. Bianchini, R.E. Woods, C.E. Kesler, Effect of floor concrete strength on column strength, ACI J. Proc. 56 (5) (1960) 1149– 1170.
• [10] C.E. Ospina, S.D.B. Alexander, Transmission of High-Strength Concrete Column Loads Through Concrete Floors. Structural Engineering Report No. 214, University of Alberta, Edmonton, 1997.
• [11] H. Kupfer, H.K. Hilsdorf, H. Rüsh, Behavior of concrete under biaxial stresses, ACI J. Proc. 66 (8) (1969) 656–666.
• [12] F.E. Richart, A. Brandtzaeg, R.L. Brown, A Study of the Failure of Concrete Under Combined Compressive Stresses. Bulletin No. 185, University of Illinois, 1928.
• [13] M.P. Collins, D. Mitchell, Prestressed Concrete Structure, Prentice Gill, 1991. p. 766.
• [14] E. Hognestad, A Study of Combined Bending and Axial Load in Reinforced Concrete Members. Bulletin 399, University of Illinois, 1951.
• [15] A.A. Shah, J. Dietz, N.V. Tue, G. Koenig, Experimental investigation of column–slab joints, ACI Struct. J. 102 (1) (2005) 103–113.
• [16] J.H. Lee, J.M. Yang, S.H. Lee, Y.S. Yoon, Improved transmission of UHSC column loads by puddling of fiber reinforced UHSC, J. Korea Concr. Inst. 19 (2) (2007) 209–216.
• [17] P.J. McHarg, W.D. Cook, D. Mitchell, Y.S. Yoon, Improved transmission of high-strength concrete column loads through normal strength concrete slabs, ACI Struct. J. 97 (1) (2000) 149–157.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)