Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear Reinforcement

Shear reinforcement is one of the common measures used to strengthen slab–column connections. It can make the joint’s load capacity increase. However, when the connection is subjected to an unbalanced bending moment, the reduction effect of the shear reinforcement on the bending moment is worth inve...

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Main Authors: Yueqiao Jia, Jeffrey C. L. Chiang
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/19/9584
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author Yueqiao Jia
Jeffrey C. L. Chiang
author_facet Yueqiao Jia
Jeffrey C. L. Chiang
author_sort Yueqiao Jia
collection DOAJ
description Shear reinforcement is one of the common measures used to strengthen slab–column connections. It can make the joint’s load capacity increase. However, when the connection is subjected to an unbalanced bending moment, the reduction effect of the shear reinforcement on the bending moment is worth investigating. Nonlinear finite element analysis was performed on reinforced concrete slabs with shear reinforcement for various moment-to-shear (M/V) ratios. The effects of the number and diameter of shear reinforcement and different loading methods on the slab were investigated, as along with a correction to the ACI-318 and China Concrete Structure Design code GB50010 formula for the moment transfer coefficient. The 3D finite element modeling was performed using appropriate element types and a constitutive model for concrete. The concrete damage plasticity model parameters were calibrated using the experimental results of a specimen. The amount of shear reinforcement had a certain contribution to the strength of the slab, but the diameter of the shear reinforcement had little effect. The plate’s bearing capacity decreased as the M/V increased. The corrected moment transfer coefficient formula demonstrates that M/V is positively correlated with the coefficient and that the calculated values specified in ACI-318 and GB50010 are overly conservative.
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spelling doaj.art-ccb45f7004cd442ebe96a7c660462cab2023-11-23T19:42:06ZengMDPI AGApplied Sciences2076-34172022-09-011219958410.3390/app12199584Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear ReinforcementYueqiao Jia0Jeffrey C. L. Chiang1Faculty of Engineering, Built Environment & Information Technology, SEGi University, Kota Damansara, PJ, Kuala Lumpur 47810, Selangor, MalaysiaFaculty of Engineering, Built Environment & Information Technology, SEGi University, Kota Damansara, PJ, Kuala Lumpur 47810, Selangor, MalaysiaShear reinforcement is one of the common measures used to strengthen slab–column connections. It can make the joint’s load capacity increase. However, when the connection is subjected to an unbalanced bending moment, the reduction effect of the shear reinforcement on the bending moment is worth investigating. Nonlinear finite element analysis was performed on reinforced concrete slabs with shear reinforcement for various moment-to-shear (M/V) ratios. The effects of the number and diameter of shear reinforcement and different loading methods on the slab were investigated, as along with a correction to the ACI-318 and China Concrete Structure Design code GB50010 formula for the moment transfer coefficient. The 3D finite element modeling was performed using appropriate element types and a constitutive model for concrete. The concrete damage plasticity model parameters were calibrated using the experimental results of a specimen. The amount of shear reinforcement had a certain contribution to the strength of the slab, but the diameter of the shear reinforcement had little effect. The plate’s bearing capacity decreased as the M/V increased. The corrected moment transfer coefficient formula demonstrates that M/V is positively correlated with the coefficient and that the calculated values specified in ACI-318 and GB50010 are overly conservative.https://www.mdpi.com/2076-3417/12/19/9584finite element methodmoment transferpunching shearslab–column connectionshear reinforcement
spellingShingle Yueqiao Jia
Jeffrey C. L. Chiang
Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear Reinforcement
Applied Sciences
finite element method
moment transfer
punching shear
slab–column connection
shear reinforcement
title Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear Reinforcement
title_full Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear Reinforcement
title_fullStr Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear Reinforcement
title_full_unstemmed Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear Reinforcement
title_short Finite Element Analysis of Punching Shear of Reinforced Concrete Slab–Column Connections with Shear Reinforcement
title_sort finite element analysis of punching shear of reinforced concrete slab column connections with shear reinforcement
topic finite element method
moment transfer
punching shear
slab–column connection
shear reinforcement
url https://www.mdpi.com/2076-3417/12/19/9584
work_keys_str_mv AT yueqiaojia finiteelementanalysisofpunchingshearofreinforcedconcreteslabcolumnconnectionswithshearreinforcement
AT jeffreyclchiang finiteelementanalysisofpunchingshearofreinforcedconcreteslabcolumnconnectionswithshearreinforcement