A new direction for calculating the strength of bent reinforced concrete elements along inclined sections with an example of calculating an experimental beam

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Abstract

The reliability of the operation of structures and structures as a whole Received: March 25, 2021 during their operation significantly depends on many factors that are not always Revised: May 27, 2021 fully taken into account by the calculation. One of the reasons for this may be a narrow Accepted: June 3, 2021 focus of many experimental researches, the results of which are taken for guidance in the development of the theory of calculation. Sometimes the calculation theories are not at all substantiated by experimental research. The experimental research methodology will give a positive effect for the development of a reliable theory for the calculation of bent reinforced concrete elements along inclined sections only when it combines the whole variety of influence of the main factors on the operation of the investigated elements, including the type of loads applied during testing - evenly distributed or focused, with deep analysis of the obtained results. In the proposed theory of strength calculation for inclined sections of bent reinforced concrete elements the relationship in the development of the stress-strain state under the action of a load both in normal and inclined sections to the longitudinal axis of the elements, up to the destruction of beams, obtained as a result of experimental theoretical research, is used. This ensures a close coincidence of the experimental and calculated data, increases the reliability, durability and economic efficiency of structures during their operation.

About the authors

Ivan N. Starishko

Vologda State University

Author for correspondence.
Email: starishkoi@mail.ru
SPIN-code: 6193-8912
Associate Professor, Department of Highways, Institute of Civil Engineering, Candidate of Technical Sciences 15, Lenin St., Vologda, 160000, Russian Federation

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