Reducing the discrepancy in calculated shear capacity at the transition from a deep to slender beam

David B. Birrcher; Robin G Tuchscherer; Oguzhan Bayrak

Reducing the discrepancy in calculated shear capacity at the transition from a deep to slender beam

David B. Birrcher, Robin G Tuchscherer, Oguzhan Bayrak

Civil Engineering, Construction Management, and Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A research study was performed to investigate the discrepancy in shear capacity calculated with strut-and-tie models and sectional models near the transition between deep and slender beams. Shear test data from a largescale experimental program and the literature (179 total tests) were analyzed. Inappropriately large discrepancies in shear strength calculated using the AASHTO LRFD (2008) strut-and-tie model and sectional shear provisions were found when the shear span-to-depth (a/d) ratio was near 2. The discrepancies were largely due to overly-conservative estimates of strength calculated with the strut-and-tie model provisions in AASHTO LRFD (2008). The discrepancies were greatly reduced with the use of strut-and-tie model provisions developed in this study that were largely based on fib (1999) recommendations.

Original language	English (US)
Title of host publication	3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings
Publisher	Precast Prestressed Concrete Institute
ISBN (Electronic)	9780937040904
State	Published - 2010
Event	3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010 - Washington, United States Duration: May 29 2010 → Jun 2 2010

Other

Other	3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010
Country/Territory	United States
City	Washington
Period	5/29/10 → 6/2/10

Keywords

A/d ratio
Deep beam shear
Strut-and-tie model

ASJC Scopus subject areas

Building and Construction
Civil and Structural Engineering

Cite this

Reducing the discrepancy in calculated shear capacity at the transition from a deep to slender beam. / Birrcher, David B.; Tuchscherer, Robin G; Bayrak, Oguzhan.
3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings. Precast Prestressed Concrete Institute, 2010.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Birrcher, DB, Tuchscherer, RG & Bayrak, O 2010, Reducing the discrepancy in calculated shear capacity at the transition from a deep to slender beam. in 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings. Precast Prestressed Concrete Institute, 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010, Washington, United States, 5/29/10.

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abstract = "A research study was performed to investigate the discrepancy in shear capacity calculated with strut-and-tie models and sectional models near the transition between deep and slender beams. Shear test data from a largescale experimental program and the literature (179 total tests) were analyzed. Inappropriately large discrepancies in shear strength calculated using the AASHTO LRFD (2008) strut-and-tie model and sectional shear provisions were found when the shear span-to-depth (a/d) ratio was near 2. The discrepancies were largely due to overly-conservative estimates of strength calculated with the strut-and-tie model provisions in AASHTO LRFD (2008). The discrepancies were greatly reduced with the use of strut-and-tie model provisions developed in this study that were largely based on fib (1999) recommendations.",

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AU - Birrcher, David B.

AU - Tuchscherer, Robin G

AU - Bayrak, Oguzhan

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N2 - A research study was performed to investigate the discrepancy in shear capacity calculated with strut-and-tie models and sectional models near the transition between deep and slender beams. Shear test data from a largescale experimental program and the literature (179 total tests) were analyzed. Inappropriately large discrepancies in shear strength calculated using the AASHTO LRFD (2008) strut-and-tie model and sectional shear provisions were found when the shear span-to-depth (a/d) ratio was near 2. The discrepancies were largely due to overly-conservative estimates of strength calculated with the strut-and-tie model provisions in AASHTO LRFD (2008). The discrepancies were greatly reduced with the use of strut-and-tie model provisions developed in this study that were largely based on fib (1999) recommendations.

AB - A research study was performed to investigate the discrepancy in shear capacity calculated with strut-and-tie models and sectional models near the transition between deep and slender beams. Shear test data from a largescale experimental program and the literature (179 total tests) were analyzed. Inappropriately large discrepancies in shear strength calculated using the AASHTO LRFD (2008) strut-and-tie model and sectional shear provisions were found when the shear span-to-depth (a/d) ratio was near 2. The discrepancies were largely due to overly-conservative estimates of strength calculated with the strut-and-tie model provisions in AASHTO LRFD (2008). The discrepancies were greatly reduced with the use of strut-and-tie model provisions developed in this study that were largely based on fib (1999) recommendations.

KW - A/d ratio

KW - Deep beam shear

KW - Strut-and-tie model

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BT - 3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings

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Reducing the discrepancy in calculated shear capacity at the transition from a deep to slender beam

Abstract

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Keywords

ASJC Scopus subject areas

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