Results 41 to 50 of about 9,167 (257)

Punching shear behavior of fiber reinforced polymers reinforced concrete flat slabs: experimental study

open access: yes, 2003
This paper presents the results of a two-phase experimental program investigating the punching shear behavior of fiber reinforced polymer reinforced concrete (FRP RC) flat slabs with and without carbon fiber reinforced polymer (CFRP) shear reinforcement.
El-Ghandour, A. W.   +2 more
core   +1 more source

Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures [PDF]

open access: yes, 2011
The capability of a multi-directional fixed smeared crack constitutive model to simulate the flexural/punching failure modes of fiber reinforced concrete (FRC) laminar structures is discussed. The constitutive model is implemented in a computer program
Azevedo, Álvaro F. M.   +2 more
core   +1 more source

Research on the Punching Shear Performance of Steel Grid–UHPC Composite Bridge Decks

open access: yesBuildings
This study conducted punching shear tests on steel grid–ultra-high-performance concrete (UHPC) composite bridge decks and performed finite element analysis (FEA) to evaluate their punching shear performance. Initially, a comparative analysis is conducted
Sumei Liu   +3 more
doaj   +1 more source

Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates [PDF]

open access: yes, 2017
One of the main concerns related to flat reinforced-concrete (RC) slabs is the slab’s punching capacity. Punching can occur not only due to a deficient transverse reinforcement, but also when the flexural capacity of the slab needs to be increased.
Barros, Joaquim A. O.   +5 more
core   +1 more source

A design model for punching shear of FRP-reinforced slab-column connections

open access: yes, 2008
The overall aim of this paper is to develop a unified design method for the punching shear resistance of slab-column connections irrespective of the type of internal reinforcement.
Swamy, R.N., Theodorakopoulos, D.D.
core   +1 more source

Numerical integration of an advanced Gurson model for shear loading: Application to the blanking process [PDF]

open access: yes, 2013
A new extension of the Gurson damage model has been proposed recently to predict ductile fracture under shear dominated loads. The aim of this work is to verify the ability of this approach to simulate, in an accurate way, the damage evolution in ...
ACHOURI, Mohamed   +3 more
core   +6 more sources

Effect of column dimension on the punching shear capacity of concrete slabs reinforced with GFRP bars [PDF]

open access: yesE3S Web of Conferences
Traditional steel reinforcements are highly susceptible to corrosion affecting their durability and leading to structural weaknesses. The use of GFRP bars offers a corrosion-resistant alternative, potentially extending the lifespan and durability of ...
Junaid M. Talha   +3 more
doaj   +1 more source

Experimental study on the punching–shear performance of reinforced concrete slab‒column joints with various reinforcements and openings

open access: yesJournal of Asian Architecture and Building Engineering
To elucidate the punching–shear failure mechanism and effect pattern of reinforced concrete (RC) slab–column joints with stirrups and/or openings, punching–shear failure tests were systematically conducted on 11 RC slab–column joint specimens to study ...
Hongtao Lai   +3 more
doaj   +1 more source

Calculation Method for Punching Shear Capacity of Reinforced UHPC Two-Way Slabs Based on Critical Shear Crack Theory

open access: yesBuildings
The punching shear capacity of reinforced ultra-high-performance concrete (UHPC) two-way slabs in applications such as floor slabs and bridge decks has attracted increasing attention.
Jiaxing Chen, Xingyu Tan, Qiwu Wang
doaj   +1 more source

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

open access: yesAdvanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer   +2 more
wiley   +1 more source

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