8 Development of large-diameter reinforcing bars for the seismic resistance of reinforced concrete bridge columns

Juan Murcia-Delso; P. Benson Shing

doi:10.1007/978-981-13-3278-4_8

8 Development of large-diameter reinforcing bars for the seismic resistance of reinforced concrete bridge columns

Juan Murcia-Delso^*
, P. Benson Shing

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

This paper presents an investigation on the bond-slip behavior and development of large-diameter bars embedded in well-confined concrete under seismic load conditions. Bond-slip tests and bar pull-push tests were conducted to characterize the bond strength, cyclic bond deterioration, and tension development of large-diameter bars up to No. 18 in size. A bond stress-versus-bar slip model was developed and implemented in a finite element analysis software. The model was validated with test data and used in a Monte Carlo simulation to evaluate the adequacy of the AASHTO requirements for tension bar development. Based on the results of this study, an improved development length formula was proposed. Furthermore, large-scale tests and finite element analyses were conducted to determine the minimum development length required for large-diameter bars connecting a bridge column to an enlarged pile shaft. Design recommendations were proposed based on the experimental and numerical results.

Original language	English
Title of host publication	Concrete Structures in Earthquake
Publisher	Springer
Pages	111-130
Number of pages	20
ISBN (Electronic)	9789811332784
ISBN (Print)	9789811332777
DOIs	https://doi.org/10.1007/978-981-13-3278-4_8
Publication status	Published - 21 Jan 2019
Externally published	Yes

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10.1007/978-981-13-3278-4_8

Cite this

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abstract = "This paper presents an investigation on the bond-slip behavior and development of large-diameter bars embedded in well-confined concrete under seismic load conditions. Bond-slip tests and bar pull-push tests were conducted to characterize the bond strength, cyclic bond deterioration, and tension development of large-diameter bars up to No. 18 in size. A bond stress-versus-bar slip model was developed and implemented in a finite element analysis software. The model was validated with test data and used in a Monte Carlo simulation to evaluate the adequacy of the AASHTO requirements for tension bar development. Based on the results of this study, an improved development length formula was proposed. Furthermore, large-scale tests and finite element analyses were conducted to determine the minimum development length required for large-diameter bars connecting a bridge column to an enlarged pile shaft. Design recommendations were proposed based on the experimental and numerical results.",

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AU - Murcia-Delso, Juan

AU - Benson Shing, P.

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N2 - This paper presents an investigation on the bond-slip behavior and development of large-diameter bars embedded in well-confined concrete under seismic load conditions. Bond-slip tests and bar pull-push tests were conducted to characterize the bond strength, cyclic bond deterioration, and tension development of large-diameter bars up to No. 18 in size. A bond stress-versus-bar slip model was developed and implemented in a finite element analysis software. The model was validated with test data and used in a Monte Carlo simulation to evaluate the adequacy of the AASHTO requirements for tension bar development. Based on the results of this study, an improved development length formula was proposed. Furthermore, large-scale tests and finite element analyses were conducted to determine the minimum development length required for large-diameter bars connecting a bridge column to an enlarged pile shaft. Design recommendations were proposed based on the experimental and numerical results.

AB - This paper presents an investigation on the bond-slip behavior and development of large-diameter bars embedded in well-confined concrete under seismic load conditions. Bond-slip tests and bar pull-push tests were conducted to characterize the bond strength, cyclic bond deterioration, and tension development of large-diameter bars up to No. 18 in size. A bond stress-versus-bar slip model was developed and implemented in a finite element analysis software. The model was validated with test data and used in a Monte Carlo simulation to evaluate the adequacy of the AASHTO requirements for tension bar development. Based on the results of this study, an improved development length formula was proposed. Furthermore, large-scale tests and finite element analyses were conducted to determine the minimum development length required for large-diameter bars connecting a bridge column to an enlarged pile shaft. Design recommendations were proposed based on the experimental and numerical results.

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M3 - Chapter

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BT - Concrete Structures in Earthquake

PB - Springer

ER -

8 Development of large-diameter reinforcing bars for the seismic resistance of reinforced concrete bridge columns

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