EXPERIMANTAL RESEARCHES OF THE CURRENT BURDENING COURSE PLATES ACHIEVEMENTS
DOI:
https://doi.org/10.26906/znp.2019.53.1891Keywords:
displacemen, bearing capacity, deformed state, experimental research, unbounded overlapAbstract
The article presents the experimental study results of flat intercolumn plates loading work peculiarities of the beamless overlapping developed system. The attention is paid to the design of the experimental designs of the bearing structure with the
bevelled platforms of suspension on the outer perimeter of the span plates. The technique of performing experimental studies
is presented. The conducted researches enabled to establish the nature of deformation and destruction of intercolumn plates as
a separate element in the developed system of beamless overlapping. In this case, the magnitude of the compression deformations decreases to the point where the test specimens rest on the supporting blocks. It confirms the assumption of the transfer
of load from the spacers to the intercolumnar on the principle of "linear hinge". Attention is paid to the fact that the achievement of the bearing capacity is not accompanied by the process of destruction, but is characterized by significant movements
of the flying part of the plate in the vertical plane.
References
Nyzhnyk, A.V. (2012). Beamless and often ribbed steelconcrete floors. – Poltavа: Publisher Shevchenko R.V.
Storozhenko, L.I., Yermolenko D.A., Nizhnik, O.V., Bogosta, V.I. & Tegza, I.I. (2014). New effective solutions of beam-free prefabricated overlappings of multi-storey buildings. Academic journal. Series: Industrial Machine Building, Civil Engineering, 3(42), v.1., 183-187.
Storozhenko, L.I., Yermolenko D.A., Nizhnik, O.V., Bogosta, V.I. & Tegza, I.I. (2018). Plate connection node in
precast beamless overlay. Patent of Ukraine № 128581. Kyiv, Ukrpatent.
Storozhenko, L.I., Nizhnik, O.V., Yermolenko D.A. & Tegza, I.I. (2017). New design decisions of prefabricated
girderless floors of multi-storeyed buildings. MATEC Web of Conferences 116, 02032 https://doi.org/10.1051/matecconf/201711602032
Narayanan, R. (1988). Steel-concrete composite structures: Stability strength. London-New York: Spon Press.
Frangopol, D. & Soliman, M. (2016). Life-cycle of structural systems: Recent achievements and future directions. Structure and Infrastructure Engineering, 12(1), 1-20.
https://doi.org/10.1080/15732479.2014.999794
Mullett, D.L. (1998). Composite floor system. WileyBlackwell. 8. Costa-Neves, L.F., Silva, J.G.S., Lima, L.R.O. & Jordao, S. (2014). Multi-storey, multi-bay building with composite steel-desk floors under human-induced loads: The human comfort issue. Computers and Structures, 136, 34-46. https://doi.org/10.1016/j.compstruc.2014.01.027
Wright, H.D., Evans, H.R. & Harding, P.W. (1987). The use of profiles steel sheeting in floor construction. Journal of Constructional Steel Research, 7(4), 279-295. https://doi.org/10.1016/0143-974X(87)90003-4
Broms, C.E. (2006). Concrete Flat Slabs and Footings: Design Method for Pundching and Detailing for Ductility. Royal Institute of Technology. Stockholm, Sweden.