To Identify the Patterns of Destruction and Cracking  Short Reinforced Concrete Beams

Skachkov, Yu. P.; Ovchinnikov, Ilya; Снежкина, Ольга Викторовна

doi:10.21506/j.ponte.2017.2.23

Cited by 2 publications

(1 citation statement)

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“…The frame-rod model reflects the actual work of short concrete elements, uniquely determines the length of the projection of the inclined section. The calculated dependences for the evaluation of strength are consistent with experimental data, which is confirmed by experimental and theoretical studies [4][5][6]. The borders of use of frame-rod model are limited by relative cut span a/h0≤1.…”

Section: Methodssupporting

confidence: 82%

Strength Assessment Modeling for Reinforced Concrete Beams in Transverse Forces Zone

Снежкина¹

2019

Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" Dedicated to the

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The existing computational model to determine the strength of inclined sections of bending reinforced concrete elements, adopted in the regulatory documents of the Russian Federation, due to the complex stress-deformed state has significant differences with the actual nature of structure work and requires further development. When comparing calculated dependencies to determine the strength of an inclined section under the action of transverse forces with experimental data, the author found that in reinforced concrete beams without distributed reinforcement, the strength over an inclined section under the action of transverse ones does not in some cases reflect the actual operation of the structures under consideration. A mathematical model is proposed to estimate the effect of geometric characteristics of reinforced concrete beams on strength in transverse forces zone when the relative span of a/h0 is changed from 1 to 3 based on the experimental data.

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Section: Methodssupporting

confidence: 82%

Strength Assessment Modeling for Reinforced Concrete Beams in Transverse Forces Zone

Снежкина¹

2019

Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" Dedicated to the

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Engineering method for assessing the strength of reinforced concrete beams

Снежкина

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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A calculation method is proposed that combines two existing methods for calculating the strength of reinforced concrete beams. The author of the article considers the possibility of presenting the work of a reinforced concrete beam in the form of an arch with a curvilinear shape with a puff, which is a statically definable system. The operation of a reinforced concrete beam with a relative span of a slice from 1 to 3 is modeled as an arched system with a horizontal stretched reinforcing belt and a compressed concrete strip of curvilinear shape. The purpose of the tightening in a beam with an average relative cut span is to cancel the bending moment inherent in a simple beam. Thus, this model (arch with tightening) most fully reflects the work of reinforced concrete beams with an average relative cut span compared to the model adopted in regulatory documents.

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To Identify the Patterns of Destruction and Cracking Short Reinforced Concrete Beams

Cited by 2 publications

References 0 publications

Strength Assessment Modeling for Reinforced Concrete Beams in Transverse Forces Zone

Strength Assessment Modeling for Reinforced Concrete Beams in Transverse Forces Zone

Engineering method for assessing the strength of reinforced concrete beams

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