Punching shear behavior of FRP reinforced concrete slabs under different opening configurations and loading conditions

Al-Rousan, Rajai Z.; Alnemrawi, Bara’a R.

doi:10.1016/j.cscm.2022.e01508

Cited by 21 publications

(8 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Understanding the relationship between W/C ratio, electrical resistance, and viscosity is critical in optimizing material performance for various applications. The data investigation was performed using sensor, and the gathered results were visualized through plots by referring [37,48,51,[60][61][62][63][64]76,[120][121][122][123][124][125][126][127][128][129][130]. For different water-cement ratios, the shear strength value variation is analyzed in Figure 8.…”

Section: Electrical Resistance Sensormentioning

confidence: 99%

Exploring the Potential of Promising Sensor Technologies for Concrete Structural Health Monitoring

Shilar,

Ganachari,

Patil

et al. 2024

Materials

View full text Add to dashboard Cite

Structural health monitoring (SHM) is crucial for maintaining concrete infrastructure. The data collected by these sensors are processed and analyzed using various analysis tools under different loadings and exposure to external conditions. Sensor-based investigation on concrete has been carried out for technologies used for designing structural health monitoring sensors. A Sensor-Infused Structural Analysis such as interfacial bond-slip model, corroded steel bar, fiber-optic sensors, carbon black and polypropylene fiber, concrete cracks, concrete carbonation, strain transfer model, and vibrational-based monitor. The compressive strength (CS) and split tensile strength (STS) values of the analyzed material fall within a range from 26 to 36 MPa and from 2 to 3 MPa, respectively. The material being studied has a range of flexural strength (FS) and density values that fall between 4.5 and 7 MPa and between 2250 and 2550 kg/m3. The average squared difference between the predicted and actual compressive strength values was found to be 4.405. With cement ratios of 0.3, 0.4, and 0.5, the shear strength value ranged from 4.4 to 5.6 MPa. The maximum shear strength was observed for a water–cement ratio of 0.4, with 5.5 MPa, followed by a water–cement ratio of 0.3, with 5 MPa. Optimizing the water–cement ratio achieves robust concrete (at 0.50), while a lower ratio may hinder strength (at 0.30). PZT sensors and stress-wave measurements aid in the precise structural monitoring, enhanced by steel fibers and carbon black, for improved sensitivity and mechanical properties. These findings incorporate a wide range of applications, including crack detection; strain and deformation analysis; and monitoring of temperature, moisture, and corrosion. This review pioneers sensor technology for concrete monitoring (Goal 9), urban safety (Goal 11), climate resilience (Goal 13), coastal preservation (Goal 14), and habitat protection (Goal 15) of the United Nations’ Sustainable Development Goals.

show abstract

Section: Electrical Resistance Sensormentioning

confidence: 99%

Exploring the Potential of Promising Sensor Technologies for Concrete Structural Health Monitoring

Shilar,

Ganachari,

Patil

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

“…Slab failures in buildings, bridges, and other structures can occur for a variety of reasons. For instance, punching shear failure can occur in a conical shape, which causes a slab to dramatically collapse progressively after the induced load is redistributed, and consequent overloading the various structural elements within the system [ 2 , 3 ]. Also, several factors influence the flexural performance of RC slabs, including structural element size, cement, aggregate, moisture level, and ambient environmental conditions [ [4] , [5] , [6] ].…”

Section: Introductionmentioning

confidence: 99%

Structural retrofitting of RC slabs using bamboo fibre laminate: Flexural performance and crack patterns

Awoyera,

Althoey,

Bahrami

et al. 2024

Heliyon

View full text Add to dashboard Cite

“…A flat slab is a type of two-way reinforced concrete slab. There may be openings in a flat slab for many architectural purposes, including as electricity, air conditioning, water-supply, stairways, elevators, etc [4], [5] Opening causes a discontinuity in the structure's natural load path, which leads to the generation of an unbalanced shear force and bending moment [6]. High stresses developed at the connection between the slab and the supporting column as a result of the direct load transfer from the slab to the column, which results in the punching shear failure [7] The punching shear capacity is the most critical consideration IOP Publishing doi:10.1088/1755-1315/1326/1/012022 2 when designing flat slabs.…”

Section: Introductionmentioning

confidence: 99%

Analysis of interior panel of flat slab with opening at different position from column face

Vermax,

Rai,

Jain

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Openings in the flat slab may be required for multiple types of architectural purposes, including the transition of gas, electricity, water, and air-conditioning systems, as well as stairs or elevators. The aim of this research is to examine how openings in flat slab structures affect these structures’ structural behaviour. The study focuses on two main aspects: the size and location of the openings. The study examined a total of eight different models or specimens. Six of these models had a square opening with dimensions of 2 x 2 meters. The openings were positioned at three different locations: directly at the column face, 1 meter away from the column face, and 2 meters away from the column face. These six models were further divided into two groups: one group with drop panels and the other without drop panels. By increasing the slab thickness near the column, drop panels help redistribute the shear forces and mitigate the risk of failure. In addition to the six models with openings, the study also included two models without any openings. These two models were analysed both with and without drop panels to compare their behaviour with the models that had openings. The structural behaviour of the various models was simulated and examined using the finite element analysis software CSI SAFE 2016. The analysis aimed to evaluate critical factors such as punching shear capacity and deflections by comparing the results of the different models. The purpose of the study was to provide information on how the position and size of openings affect flat slab systems’ structural performance. Overall, the objective of the study was to contribute to the understanding of how openings in flat slabs, particularly when located adjacent to columns, can impact the structural behaviour and vulnerability of the system to failure.

show abstract

Punching shear behavior of FRP reinforced concrete slabs under different opening configurations and loading conditions

Cited by 21 publications

References 42 publications

Exploring the Potential of Promising Sensor Technologies for Concrete Structural Health Monitoring

Exploring the Potential of Promising Sensor Technologies for Concrete Structural Health Monitoring

Structural retrofitting of RC slabs using bamboo fibre laminate: Flexural performance and crack patterns

Analysis of interior panel of flat slab with opening at different position from column face

Contact Info

Product

Resources

About