Strength of Flexible Compressed Elements when Changing the Options of Composite Reinforcement and Application of the Load

Polskoy, Petr

doi:10.4028/www.scientific.net/msf.931.315

Cited by 5 publications

(3 citation statements)

References 6 publications

(6 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparison with the results obtained by Polskoy (in [33]) shows that reinforcement with composite materials in the transverse (at e 0 = 0) and longitudinal (at e 0 = 0.32 h) directions demonstrated sufficiently high strength. This made it possible to use external reinforcement to increase the bearing capacity of compressed elements, despite exceeding the standard values of the section dimensions b/h = 0.2, which is more than 1.5, and the flexibility of the elements strengthened λ h = 20 > λ h = 14.…”

Section: Discussionsupporting

confidence: 55%

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

et al. 2021

View full text Add to dashboard Cite

Increasing the bearing capacity of reinforced concrete structures, reducing material consumption, and ensuring quality are critical in modern construction. The article presents an experimental study of the ultimate compressive strains of short fiber basalt reinforced concrete columns and provides recommendations for increasing the bearing capacity using steel reinforcement bars with greater strength. The columns were tested in an upright position using a hydraulic press. Strains were measured with dial indicators and a strain gauge station. It was shown that the addition of 10% coarse basalt fiber increased the ultimate compressibility of concrete on ordinary crushed stone by 19.8%, and expanded clay concrete by 26.1%, which led to the strain hardening of concrete under compression by 9.0% and 12%, respectively. Ultimate compressive strains in fiber-reinforced concrete short columns with combined reinforcement increased 1.42 times in columns on a lightweight aggregate and 1.19 times on heavy aggregate. An increase in the ultimate compressibility of concrete makes it possible to use steel reinforcement with greater strength in compressed elements as the concrete crushing during compression occurs primarily due to the reaching of critical values by tensile stresses in the transverse direction. This makes it possible to manufacture structures with a higher load-bearing capacity and less material consumption. A practical example of the application of the proposed approach is given.

show abstract

Section: Discussionsupporting

confidence: 55%

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

et al. 2021

View full text Add to dashboard Cite

show abstract

“…As part of a large-scale study of the work of reinforced concrete structures reinforced with composite materials, at the Department of Reinforced Concrete and Stone Structures, DSTU, the operation issues of reinforced concrete structures reinforced with round glass and carbon fiber reinforcement [1][2][3][4], the sections strength of reinforced concrete beams normal to the longitudinal axis of the element, reinforced external composite reinforcement [5], compressed reinforced concrete elements reinforced with composite materials at different eccentricities of load application [6][7][8][9]. Also, a study on the sections of reinforced concrete beams that are inclined to the longitudinal axis of the element, reinforced with external composite clamps in the presence and absence of initial inclined cracks was carried out [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

The beams with composite reinforcement inclined sections’ finite element modeling operation results comparison with the results of the laboratory samples’ tests

Shilov

2021

E3S Web Conf.

View full text Add to dashboard Cite

The results of a numerical experiment are presented, within the framework of which finite element modeling of the reinforced concrete beams support sections with external composite reinforcement beams inclined sections operation was carried out, as well as their comparison with the results of an experiment carried out on real laboratory samples, similarly reinforced on the support areas by external composite U-shaped cross clamps. The strength of inclined sections of both real laboratory specimens and their design models was considered. Both numerical and real experiments were carried out at three values of the shear fracture span: 1.5h0; 2.0h0 and 2.5h0. The obtained results of the numerical experiment are compared with the results of laboratory tests on beams in order to analyze the accuracy of the calculation results and to find the optimal method for modeling and taking into account the external composite reinforcement clamps in the design models that would most accurately reflect their contribution to the operation of the inclined section of bent reinforced concrete elements. For the numerical experiment, the method of finite element modeling of samples was used. An assessment of the method used for computational modeling of the operation of inclined sections reinforced with external composite reinforcement is given.

show abstract

“…The study of the normal strength to the flexible concrete elements' longitudinal axis sections structures with normal and excess crosssectional composite materials area [5]. The experimental studies of compressed reinforced concrete elements, reinforced with composite materials with load application various eccentricities have been completed [6][7][8][9]. Currently, active work is underway to study the inclined sections strength of the reinforced concrete beams reinforced with external composite transverse reinforcement [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

The Cut Span Effect on the Beams Inclined Sections Strength Reinforced with External Composite Reinforcement

Polskoy

Mailyan

Shilov

2019

MSF

Self Cite

View full text Add to dashboard Cite

show abstract

Strength of Flexible Compressed Elements when Changing the Options of Composite Reinforcement and Application of the Load

Cited by 5 publications

References 6 publications

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

The beams with composite reinforcement inclined sections’ finite element modeling operation results comparison with the results of the laboratory samples’ tests

The Cut Span Effect on the Beams Inclined Sections Strength Reinforced with External Composite Reinforcement

Contact Info

Product

Resources

About