Shear strength model of reinforced concrete beams without stirrup used in the CIS countries

Meirzhan Yerzhanov, Hyunjin Ju, Dichuan Zhang, Sung-Woo Moon, Jong Kim, Deuckhang Lee

Research output: Contribution to journalArticle

Abstract

SNiP code is widely used in the so-called Post-Soviet Union or Commonwealth of Independent States (CIS) countries for the structural designs of reinforced concrete (RC) structures. The existing shear strength estimation model specified in SNiP code was initially developed about 90 years ago based on a semi-empirical approach, which means its accuracy and safety level significantly depends on the shear test results available at that time. In this study, a rational modification factor is derived to improve the accuracy of the shear design equation in SNiP code using a current up-to-date large shear database, and the key influencing factors of the shear resistance of RC beams, such as the size effect and tensile strength of concrete, were addressed. To verify the accuracy and safety level of the proposed models, detailed verifications are introduced with comparisons to the six different shear design models used in the international building codes, in which ACI-DAfStb shear database consisting of a total of 784 test results was utilized. According to verification results, the SNiP code model with the new modification factor provided a comparable analytical accuracy and reasonable safety level compared to the current international building code models.

Original languageEnglish
Pages (from-to)15-25
Number of pages11
JournalJournal of Structural Integrity and Maintenance
Volume4
Issue number1
DOIs
Publication statusPublished - Jan 2 2019

Fingerprint

Shear strength
Reinforced concrete
Structural design
Concrete construction
Tensile strength
Concretes

Keywords

  • database
  • effective depth
  • shear strength
  • size effect
  • SNiP code
  • span to depth ratio

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Materials Science(all)

Cite this

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title = "Shear strength model of reinforced concrete beams without stirrup used in the CIS countries",
abstract = "SNiP code is widely used in the so-called Post-Soviet Union or Commonwealth of Independent States (CIS) countries for the structural designs of reinforced concrete (RC) structures. The existing shear strength estimation model specified in SNiP code was initially developed about 90 years ago based on a semi-empirical approach, which means its accuracy and safety level significantly depends on the shear test results available at that time. In this study, a rational modification factor is derived to improve the accuracy of the shear design equation in SNiP code using a current up-to-date large shear database, and the key influencing factors of the shear resistance of RC beams, such as the size effect and tensile strength of concrete, were addressed. To verify the accuracy and safety level of the proposed models, detailed verifications are introduced with comparisons to the six different shear design models used in the international building codes, in which ACI-DAfStb shear database consisting of a total of 784 test results was utilized. According to verification results, the SNiP code model with the new modification factor provided a comparable analytical accuracy and reasonable safety level compared to the current international building code models.",
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AU - Zhang, Dichuan

AU - Moon, Sung-Woo

AU - Kim, Jong

AU - Lee, Deuckhang

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AB - SNiP code is widely used in the so-called Post-Soviet Union or Commonwealth of Independent States (CIS) countries for the structural designs of reinforced concrete (RC) structures. The existing shear strength estimation model specified in SNiP code was initially developed about 90 years ago based on a semi-empirical approach, which means its accuracy and safety level significantly depends on the shear test results available at that time. In this study, a rational modification factor is derived to improve the accuracy of the shear design equation in SNiP code using a current up-to-date large shear database, and the key influencing factors of the shear resistance of RC beams, such as the size effect and tensile strength of concrete, were addressed. To verify the accuracy and safety level of the proposed models, detailed verifications are introduced with comparisons to the six different shear design models used in the international building codes, in which ACI-DAfStb shear database consisting of a total of 784 test results was utilized. According to verification results, the SNiP code model with the new modification factor provided a comparable analytical accuracy and reasonable safety level compared to the current international building code models.

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