Strength’s calculation of reinforced concrete slab-columns joints in monolithic frame of highrise buildings
Abstract
The article presents the research work aimed at developing a methodology for calculating strength of reinforced concrete slab-columns joints made of different strength grade of concrete in monolithic frame of high-rise buildings. The results of Russian and foreign regulatory documents analysis and technical literature on this issue are briefly presented. On the basis of review and generalization of laboratory tests of slab-columns joints the factors influencing their compressive strength were formulated. Numerical analysis of “slab-column” type units’ behavior was carried out with preliminary verification calculations, which showed good accuracy with experimental data on fracture pattern and ultimate breaking loads. Based on results of calculations of finite element models of middle, extreme and corner slab-columns joints, which had a variation of ratios of column dimensions and slab thicknesses, strength grade of concrete, stress acting on the slab and its maximum value, the formulas for compressive strength analysis were derived.
About the Authors
A. N. Bolgov
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Candidate of Sciences (Engineering), Laboratory No. 2
e-mail: 200651@mail.ru
S. I. Ivanov
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Candidate of Sciences (Engineering), Laboratory No. 2
e-mail: 5378018@mail.ru
A. Z. Sokurov
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Candidate of Sciences (Engineering), Laboratory No. 2
e-mail: 6618188@gmail.com
A. V. Nevsky
Research, Design and Technological institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev JSC “Research Center “Stroitel’stvo”
Russian Federation
Russian Federation
Candidate of Sciences (Engineering), Laboratory No. 2
e-mail: lokop888@gmail.com
References
1. SP 267.1325800.2016. High rise buildings and complexes. Design rules. Moscow: Ministry of Construction, Housing and Utilities of the Russian Federation. 2016. 95 p.
2. SP 63.13330.2018. Concrete and reinforced concrete constructions. General provisions. Moscow: Ministry of Construction, Housing and Utilities of the Russian Federation. 2018. 143 p.
3. ACI 318-2014. Building Code Requirements for Structural Concrete and Commentary. Reported by ACI Committee 318. USA, Farmington Hills: ACI. 2014. 519 p.
4. CSA A23.3-04. Design of concrete structures. Canadian Standards Association. Canada, Ontario, Mississauga: CSI. 2006. 258 p.
5. Bianchini A.C., Wood R.E. Effect of floor concrete strength on column strength. <i>Journal of the American Concrete Institute</i>. 1960. Vol. 31. No. 11, pp. 1149–1169.
6. Gambel W.L., Klinar J.D. Test of high- strength concrete columns with intervening floor slabs. <i>Journal of Structural Engineering</i>. 1991. Vol. 117. No. 5, pp. 1462–1476.
7. Ospina C.E., Alexander S.D.B. Transmission of interior concrete columns loads through floor. <i>Journal of Structural Engineering</i>. 1998. Vol. 124. No. 6, pp. 602 610.
8. Shu С.С., Hawkins N.M. Behavior of columns continuous through concrete floors. <i>Journal of The American Concrete Institute</i>. 1992. Vol. 89. No. 4, pp. 405–414.
Review
For citations:
Bolgov A.N., Ivanov S.I., Sokurov A.Z., Nevsky A.V. Strength’s calculation of reinforced concrete slab-columns joints in monolithic frame of highrise buildings. Concrete and Reinforced Concrete. 2021;606(4):39-44. (In Russ.)
Views:
65
Email this article 