Investigation on repair of tension cracks in reinforced concrete panels

2021 ◽  
Vol 245 ◽  
pp. 112974
Author(s):  
Alireza Ahmadi ◽  
M. Reza Kianoush ◽  
Mehdi Moslemi ◽  
Mohamed Lachemi ◽  
Hocine Siad ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Concrete Panels ◽  
Tension Cracks

scholarly journals Investigation Of Water Leakage Through Direct Tension Cracks In Reinforced Concrete Panels

2021 ◽  
Author(s):  
Seyyednezameddin Bozorgzadeh
Keyword(s):  
Reinforced Concrete ◽  
Crack Width ◽  
Experimental Studies ◽  
Theoretical Models ◽  
Experimental Program ◽  
Direct Tension ◽  
Pressurized Water ◽  
Concrete Panels ◽  
Tension Cracks ◽  
Crack Widths

In this study the leakage of pressurized water through direct tension cracks in reinforced concrete (RC) panels is investigated experimentally. The results of the experiment can contribute to the field from different aspects since not many experimental studies of this kind have been reported in the literature. In this experimental program, three RC panels are subjected to direct tension force in order to form a major crack. The leakage test is then performed on the cracked specimens and the leakage of water through the crack is measured for different crack widths. The collected data consists of reinforcement strains, crack widths and the leakage rate through the cracks. Related theoretical models are compared against the experiment results. These results indicate that the leakage of water through a crack depend on the pressure of the water, cube of the crack width and crack width gradient.

scholarly journals Investigation Of Water Leakage Through Direct Tension Cracks In Reinforced Concrete Panels

2021 ◽  
Author(s):  
Seyyednezameddin Bozorgzadeh
Keyword(s):  
Reinforced Concrete ◽  
Crack Width ◽  
Experimental Studies ◽  
Theoretical Models ◽  
Experimental Program ◽  
Direct Tension ◽  
Pressurized Water ◽  
Concrete Panels ◽  
Tension Cracks ◽  
Crack Widths

In this study the leakage of pressurized water through direct tension cracks in reinforced concrete (RC) panels is investigated experimentally. The results of the experiment can contribute to the field from different aspects since not many experimental studies of this kind have been reported in the literature. In this experimental program, three RC panels are subjected to direct tension force in order to form a major crack. The leakage test is then performed on the cracked specimens and the leakage of water through the crack is measured for different crack widths. The collected data consists of reinforcement strains, crack widths and the leakage rate through the cracks. Related theoretical models are compared against the experiment results. These results indicate that the leakage of water through a crack depend on the pressure of the water, cube of the crack width and crack width gradient.

scholarly journals Evaluation of local damage to reinforced concrete panels subjected to oblique impact by soft missile

2019 ◽  
Vol 350 ◽  
pp. 116-127 ◽  
Author(s):  
Akemi Nishida ◽  
Zuoyi Kang ◽  
Minoru Nagai ◽  
Haruji Tsubota ◽  
Yinsheng Li
Keyword(s):  
Reinforced Concrete ◽  
Oblique Impact ◽  
Local Damage ◽  
Concrete Panels

scholarly journals A Monotonic Smeared Truss Model to Predict the Envelope Shear Stress—Shear Strain Curve for Reinforced Concrete Panel Elements under Cyclic Shear

2021 ◽  
Vol 2 (1) ◽  
pp. 174-194
Author(s):  
Luís Bernardo ◽  
Saffana Sadieh
Keyword(s):  
Shear Stress ◽  
Reinforced Concrete ◽  
Shear Strain ◽  
Peak Load ◽  
Strain Curve ◽  
Fiber Reinforced Polymers ◽  
Shear Stresses ◽  
Cyclic Shear ◽  
Concrete Panels ◽  
Truss Model

In previous studies, a smeared truss model based on a refinement of the rotating-angle softened truss model (RA-STM) was proposed to predict the full response of structural concrete panel elements under in-plane monotonic loading. This model, called the “efficient RA-STM procedure”, was validated against the experimental results of reinforced and prestressed concrete panels, steel fiber concrete panels, and reinforced concrete panels externally strengthened with fiber-reinforced polymers. The model incorporates equilibrium and compatibility equations, as well as appropriate smeared constitutive laws of the materials. Besides, it incorporates an efficient algorithm for the calculation procedure to compute the solution points without using the classical trial-and-error technique, providing high numerical efficiency and stability. In this study, the efficient RA-STM procedure is adapted and checked against some experimental data related to reinforced concrete (RC) panels tested under in-plane cyclic shear until failure and found in the literature. Being a monotonic model, the predictions from the model are compared with the experimental envelopes of the hysteretic shear stress–shear strain loops. It is shown that the predictions for the shape (at least until the peak load is reached) and for key shear stresses (namely, cracking, yielding, and maximum shear stresses) of the envelope shear stress–shear strain curves are in reasonably good agreement with the experimental ones. From the obtained results, the efficient RA-STM procedure can be considered as a reliable model to predict some important features of the response of RC panels under cyclic shear, at least for a precheck analysis or predesign.

Computational predictions for estimating the maximum deflection of reinforced concrete panels subjected to the blast load

2020 ◽  
Vol 139 ◽  
pp. 103527 ◽  
Author(s):  
Aydin Shishegaran ◽  
Mohammad Reza Khalili ◽  
Behnam Karami ◽  
Timon Rabczuk ◽  
Arshia Shishegaran
Keyword(s):  
Reinforced Concrete ◽  
Blast Load ◽  
Maximum Deflection ◽  
Concrete Panels ◽  
Computational Predictions

scholarly journals Corrosion in Reinforced Concrete Panels: Wireless Monitoring and Wavelet-Based Analysis

Sensors ◽  
2014 ◽  
Vol 14 (2) ◽  
pp. 3395-3407 ◽  
Author(s):  
Guofu Qiao ◽  
Guodong Sun ◽  
Yi Hong ◽  
Tiejun Liu ◽  
Xinchun Guan
Keyword(s):  
Reinforced Concrete ◽  
Wireless Monitoring ◽  
Concrete Panels

scholarly journals Selected findings from parametric studies determining the resistance of concrete panels in real terms

2015 ◽  
Vol 10 (1) ◽  
pp. 99-108
Author(s):  
Iveta Hegedüsová ◽  
Peter Sabol ◽  
Sergej Priganc
Keyword(s):  
Reinforced Concrete ◽  
Parametric Analysis ◽  
Parametric Model ◽  
Concrete Panels ◽  
Parametric Studies

Abstract In the article selected results of parametric analysis of lightened reinforced concrete panels used in agricultural objects are presented. The aim of the analysis was to devise a parametric model that can be later on used for the simulation of behaviour of real ceiling panels when changing predefined parameters.

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