Results 21 to 30 of about 4,217 (279)

Parametric Study for Behavior of the Punching Shear Capacity of Flat Slab Without Shear Reinforcement by The Selected Design Codes

open access: yesEurasian Journal of Science and Engineering, 2023
The system of the flat slab is widely used for the construction of structures because it has economic and functional advantages. However, a flat slab has some disadvantages as punching shear problem occurs by shear force concentrations around the column,
Hawar Hasan Jasim
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

Post-Punching Mechanisms of Slab-Column Joints Under Upward and Downward Punching Actions [PDF]

open access: yes, 2021
Progressive collapse of reinforced concrete flat plate systems can be significantly influenced by the post-punching performance of their slab–column joints under large deformations.
Guan, Hong   +5 more
core   +1 more source

Progressive Collapse of Flat Plate Substructures Initiated by Upward and Downward Punching Shear Failures of Interior Slab–Column Joints [PDF]

open access: yes, 2022
A slab-column joint in a flat plate structure may exhibit upward or downward punching shear (UPS and DPS) failure when subjected to different abnormal loading conditions.
Guan, Hong   +5 more
core   +1 more source

Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels [PDF]

open access: yes, 2014
Sequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the “evolution” of these two characteristics in the ...
GERMAIN, Guénaël   +3 more
core   +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

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