To Calculate the Strength of Steel Concrete Slabs with External Reinforcement with Profiled Steel Flooring and Prestressed Core Reinforcement
A. I. Davidenko, A. A. Davidenko, M. A. Davidenko, Ye. V. Davidenko
FSBEI HE «Lugansk Voroshilov State Agricultural University»
Annotation: The article proposes a design solution and calculation dependencies for determining the strength of normal sections of steel-concrete slabs with external reinforcement with steel profiled flooring and prestressed rod reinforcement using the «on concrete» tension method. The prerequisites for the deformation method for calculating the strength of normal sections of prestressed steel concrete elements with external reinforcement are presented. The relationship between stresses and strains of the material in the form of a Prandtl diagram is taken as the main prerequisite for calculating strength. The equations for calculating the strength of the slab are given in the case of the location of the neutral axis in the flange of the slab. Using the hypothesis of flat sections made it possible to reduce the number of unknowns to two: the height of the compressed zone and the load-bearing capacity. It is shown that the use of prestressing rod reinforcement in a hollow-core ribbed slab and anchoring a steel profiled deck in the span of the slab make it possible to increase the design span of the structure to 6–12 m. The effectiveness of the proposed design solution is characterized by a decrease in the dead weight of the slab and an increase in the specific load-bearing capacity.
Keywords: strength, concrete, prestressing, profiled steel, reinforcement, slab.
Pages: 75-82.
Link for citation: Davidenko, A. I.; Davidenko, A. A.; Davidenko, M. A. [et al.]. To Calculate the Strength of Steel Concrete Slabs with External Reinforcement with Profiled Steel Flooring and Prestressed Core Reinforcement. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2024. – Vol. 20, N 2. – Р. 75-82. – URL: https://donnasa.ru/publish_house/journals/spgs/2024-2/st_04_davidenko_davidenko_davidenko_davidenko.pdf (date of access: 16.09.2024). (in Russian)
Vol. 20, N 2 (2024)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture