Results 11 to 20 of about 1,682 (240)

Punching Shear Capacity of Recycled Aggregate Concrete Slabs

open access: yesBuildings, 2022
This article investigates the punching shear behavior of recycled aggregate concrete (RAC) two-way slabs. Ten 1500 mm × 1500 mm × 100 mm slabs were tested monotonically.
Satjapan Leelatanon   +4 more
doaj   +1 more source

Columns Cross-Section Shape Effect on Punching Shear in Reinforced Concrete Flat Slabs

open access: yesJournal of Techniques, 2023
Punching shear is one of the possible failures that must be taken into consideration in designing concrete slabs and foundations. Several factors control the occurrence of this failure mechanism, such as slab thickness, concentrated loads, and the cross-
Mohammed Oleiwi
doaj   +1 more source

Punching shear strength and deformation for FRP-reinforced concrete slabs without shear reinforcements

open access: yesCase Studies in Construction Materials, 2022
While very little is known about the punching shear behavior of Fiber Reinforced Polymer (FRP)-reinforced concrete slabs; thus, very few design codes for this case are available. Most available design codes and guidelines are missing the physical meaning
A. Deifalla
doaj   +1 more source

Flat Slabs in Eccentric Punching Shear: Experimental Database and Code Analysis

open access: yesBuildings, 2022
Eccentric punching shear can occur in concrete slab–column connections when the connection is subjected to shear and unbalanced moments. Unbalanced moments occur in all floor slabs at the edge and corner columns.
Daniel Vargas   +2 more
doaj   +1 more source

Investigation of punching shear behavior of flat slabs with different types and arrangements of shear reinforcement

open access: yesCase Studies in Construction Materials, 2022
Punching shear behavior is experimentally investigated through testing a total of thirteen reinforced concrete flat slabs. Four different types of punching shear reinforcement configurations are examined, namely, ordinary closed rectangular stirrups (ST ...
Nasim Shatarat, Donia Salman
doaj   +1 more source

Influence of the Distribution and Level of Post-Tensioning Force on the Punching Shear of Flat Slabs

open access: yesDesigns, 2022
Punching shear is the most common failure mechanism of slabs that are supported directly on columns. The slab–column connection is always vulnerable to critical punching shear; thus, it is necessary to investigate the effect of various parameters on the ...
Sarah S. Elsheshtawy   +3 more
doaj   +1 more source

Shear and Punching Capacity Predictions for One-Way Slabs under Concentrated Loads Considering the Transition between Failure Mechanisms

open access: yesBuildings, 2023
Reinforced concrete one-way slabs under concentrated loads can develop different shear failure mechanisms: as wide beams in one-way shear, punching shear around the load or a mixed mode between them. Until now, most publications presented recommendations
Alex Micael Dantas de Sousa   +2 more
doaj   +1 more source

Slabs strengthened for punching shear with post-installed steel and CFRP connectors

open access: yesRevista IBRACON de Estruturas e Materiais, 2019
Structural accidents due to punching shear failures have been reported in flat slab buildings. Design recommendations presented by codes can lead to entirely different punching shear resistance estimates for similar situations.
M. J. M. PEREIRA FILHO   +4 more
doaj   +2 more sources

Derivation of material properties using small punch and shear punch test methods [PDF]

open access: yesMaterials & Design, 2021
The Small Punch (SP) and Shear Punch (ShP) tests are well established mechanical test approaches that have found application in several industrial sectors for material ranking and mechanical property estimation, particularly where more conventional approaches are inhibited.
Robert Lancaster   +3 more
openaire   +3 more sources

Multi-Objective Optimization Design of FRP Reinforced Flat Slabs under Punching Shear by Using NGBoost-Based Surrogate Model

open access: yesBuildings, 2023
Multi-objective optimization problems (MOPs) in structural engineering arise as a significant challenge in achieving a balance between prediction accuracy and efficiency of the surrogate models, which are conventionally adopted as mechanics-driven models
Shixue Liang   +3 more
doaj   +1 more source

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