Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science
  • STRUCTURAL MECHANICS
  • Resistance of Complex Stress Reinforced Concrete at Bending With Torsion
  • UDC 624.045.12
    doi: 10.33622/0869-7019.2023.01.60-68
    Vladimir I. KOLCHUNOV1,2, corresponding member of the Russian Academy of Architecture and Construction Sciences, doctor of technical sciences, professor, vlik52@mail.ru
    Maxim V. PROTCHENKO3, postgraduate student, maxbrommax@ya.ru
    Vyacheslav N. SHANKOV3, postgraduate student, s1av.slava@yandex.ru
    Sergey V. GRECHISHNIKOV1, postgraduate student, grecha3_5ser@mail.ru
    1 Southwest State University, ul. 50 let Oktyabrya, 94, Kursk 305040, Russian Federation
    2 Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences (NIISF RAASN), Lokomotivnyi proezd, 21, Moscow 127238, Russian Federation
    3 Bryansk State Engineering Technological University, Stanke Dimitrova prospekt, 3, Bryansk 241037, Russian Federation
    Abstract. There is a calculation model resistance of a reinforced concrete element in bending with torsion. The model contains two blocks (sections of spiral or z-shaped cracks dissect the element to blocks). Derived the solving equations for determining the design parameters in the sections of these blocks from the static and deformation relations. The "pin" effect in the longitudinal and transverse reinforcement of the spatial section is taken into account in the tensile zone of the reinforced concrete structure and is determined with a special second level model. Cracks deformation effect is taken into account. The physical essence of deformation effect consist of the additional deformation action by the continuity of the concrete is disturbed. Opening of cracks is an accumulation of relative conditional concentrated reciprocal displacements of reinforcement and concrete at adjacent areas on both sides the crack boundaries. The concrete warping at the cracked cross-Section depends on the distance from the contact surface with reinforcement. Obtained analytical dependences for determining the parameters of stiffness and opening of spatial cracks at complex stress reinforced concrete structures at bending with torsion with deformation effect influence. Designed dependences consideration the presence at the structural of adjacent spatial cracks at different levels of loading.
    Keywords: model of resistance, reinforced concrete effects, spatial cracks, warping, stiffness, cross-section
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  • For citation: Kolchunov Vl. I., Protchenko M. V., Shankov V. N., Grechishnikov S. V. Resistance of complex stress reinforced concrete at bending with torsion. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2023, no. 1, pp. 60-68. (In Russ.). doi: 10.33622/0869-7019.2023.01.60-68

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