Punching Shear of FRP-RC Slab–Column Connections: A Comprehensive Database

Several design standards have been developed in the last two decades to estimate the punching capacity of two-way reinforced concrete (RC) slabs reinforced with fiber-reinforced polymer (FRP) reinforcement. FRP-RC design standards include the recently published ACI 440.11-22, CSA/S806-12, and JSCE-2...

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Bibliographic Details
Published in:Journal of composites science 2024-04, Vol.8 (4), p.145
Main Authors: Almomani, Yazan, Alawadi, Roaa, Tarawneh, Ahmad, Alghossoon, Abdullah, Aldiabat, Ahmad
Format: Article
Language:English
Subjects:
code evaluation
Concrete
Concrete slabs
Design standards
Engineering research
Fiber reinforced plastics
Fiber reinforced polymers
FRP-RC slabs
Mechanical properties
Punching shear
Reinforced concrete
Reinforcement
Shear (Mechanics)
Shear strength
Shear stress
slab–column connection
Tensile strength
Testing
Citations: Items that this one cites
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Summary:Several design standards have been developed in the last two decades to estimate the punching capacity of two-way reinforced concrete (RC) slabs reinforced with fiber-reinforced polymer (FRP) reinforcement. FRP-RC design standards include the recently published ACI 440.11-22, CSA/S806-12, and JSCE-2007. These models are either based on empirical data or semi-empirical methods and calibrated using different databases. Additionally, these standards do not have provisions for connections with shear reinforcement. Therefore, a reliable worldwide database for developing and assessing the applicability of such provisions with test results is vital. This study presents a worldwide and up-to-date database for punching shear of FRP-RC slabs. The database includes 197 tested connections, comprising interior and edge connections, with and without shear reinforcement, and a wide range of materials and cross-sectional properties. The database was used to evaluate the accuracy of the mentioned standards in predicting the punching shear capacity. For connections without shear reinforcement, it was determined that the three design standards yielded similar performance with different conservatism levels. ACI 440.11-22 yielded the most conservative results, with average Vexp/Vpred ratios of 2.04 compared to 1.28 and 1.3 for other models. For connection with shear reinforcement, specimens with Evf> 100 GPa resulted in Vexp/Vpred ratios less than 1.0 for ACI and CSA standards.
ISSN:2504-477X
2504-477X
DOI:10.3390/jcs8040145