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BUILDING STRUCTURES, BUILDINGS AND FACILITIES
Improvement of the Method for Calculation of Reinforced Concrete Bending Elements by Inclined Sections
UDC 624.046.2 DOI: 10.33622/0869-7019.2019.05.31-40
Ivan N. STARISHKÎ, e-mail: starishkoi@mail.ru
Vologda State University, ul. Lenina, 15, Vologda 160000, Russian Federation
Abstract. Testing of a large number of bending pre-stressed concrete elements and elements without pre-stressing of longitudinal reinforcement with their destruction by inclined sections, as well as analysis of numerous experimental and theoretical studies both domestic and foreign made it possible to obtain a detailed picture of the stress-strain state in concrete and reinforcement in the area of transverse forces action. Values of influence on the bearing capacity of the bending reinforced concrete elements of such factors as cohesion forces of the rough surface of the banks in the inclined crack, the dowel effect of the longitudinal reinforcement at the intersection of its inclined fracture, pre-stress in longitudinal reinforcement, depending on the transverse width of the elements, and in transverse reinforcement, depending on the forces of the elastic compression of concrete by stressed longitudinal reinforcement, etc. are set. According to the research results, it is concluded that it is expedient to improve the method of calculating the strength of bending concrete elements by inclined sections, laid down in the regulations, taking into account the influence of all major factors.
Key words: bending elements, bearing capacity, experimental studies, inclined sections, stress-strain state, calculation method.
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For citation: Starishko I. N. Improvement of the Method for Calculation of Reinforced Concrete Bending Elements by Inclined Sections. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2019, no. 5, pp. 31-40. (In Russian). DOI: 10.33622/0869-7019.2019.05.31-40.

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