Behavior of reinforced concrete plates under impact loading: different support conditions and sizes

Hüsem, Metin; Cosgun, Suleyman I.

doi:10.12989/cac.2016.18.3.389

Cited by 11 publications

(3 citation statements)

References 8 publications

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“…In order to maintain consistent input energy during impact loading, a 40 kg hammer was systematically released from a height of 450 mm in a succession of trials carried out within the scope of the study. Numerous measurements of acceleration, displacement, and strain were meticulously recorded to assess both the efcacy of the reinforcement procedure and the response of the slabs to impact [74,[92][93][94][95][96].…”

Section: Discussionmentioning

confidence: 99%

Anti‐Impact Performance Enhancement of Two‐Way Spanning Slab through the Implementation of Steel Trussed Bars

Al-Dala’ien,

Anas,

Kodrg

2024

Journal of Engineering

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Reinforced concrete (RC) slabs represent integral structural components extensively employed in architectural and infrastructural frameworks owing to their inherent robustness and longevity. In contemporary times, there has been a pronounced surge in endeavors aimed at comprehensively elucidating the anti-impact properties inherent in RC slabs. This surge is propelled by a compelling necessity to fortify these structures against the deleterious effects of low-velocity impacts, thereby ensuring their steadfastness and resilience. Consider the thorough investigation into the anti-impact characteristics of RC slabs, which has been rigorously pursued through both experimental and computational methodologies. A plethora of scholarly discourse on this topic is readily available, providing invaluable insights into the structural dynamics governing slabs subjected to low-velocity impacts. However, there is a noticeable gap in research concerning the strengthening of slabs through shear reinforcement, particularly through economical, easily fabricated, and efficient systems such as fabricated trussed bars. The primary objective of this study is to explore the structural behavior of RC slabs fortified with custom-designed trussed bars under the influence of low-velocity impacts. To accomplish this, the Abaqus software platform is explicitly employed for analysis. The slab without any shear reinforcement is experimentally tested and serves as a reference model for numerical verification. Its anti-impact performance is compared with numerical findings. Following validation, simulations are conducted for square slabs strengthened by fabricated trussed bars in orthogonal and diagonal layouts. The results demonstrate that employing fabricated truss bars shear reinforcement with a 3 mm diameter in orthogonal and diagonal layouts enhances the resistance of slabs to damage, resulting in a 28.41% and 47.06% decrease in damage, respectively. The utilization of engineered truss bars as shear reinforcement yields significant improvements in strength, rigidity, and ductility when compared to control samples lacking such reinforcement. This enhancement is particularly evident when the engineered truss bars are arranged in orthogonal and diagonal configurations.

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Section: Discussionmentioning

confidence: 99%

Anti‐Impact Performance Enhancement of Two‐Way Spanning Slab through the Implementation of Steel Trussed Bars

Al-Dala’ien,

Anas,

Kodrg

2024

Journal of Engineering

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“…Stiffness degradation parameters for both compression and tension were also defined by the mechanical properties of the CDP model. In addition, the material properties which were used in the CDP model are summarized in Table 2 [32]. For the simulation of the soil and compacted gravel layers, the most common material model is Drucker Prager Hardening model [33].…”

Section: Fe Modelingmentioning

confidence: 99%

Evaluation of Load-Transfer Efficiency of Steel Mesh Reinforced Contraction Joints in Concrete Pavement: Accelerated Pavement Test and FE Analysis

Çelik¹,

Seferoğlu

Akpınar

et al. 2021

Teknik Dergi

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Transverse contraction joints are by far the most common type of joint in jointed plain concrete pavements. Early loading of contraction joints can create a weakened vertical plane and later grow as a full-depth crack. In this study, load transfer efficiency (LTE) of steel mesh reinforced transverse contraction joints were studied at accelerated pavement tests (APT). 3D finite element (FE) model of jointed plain concrete pavement (JPCP) was developed to study deflections and crack propagation in just under the joint of the concrete pavement. The APT tests were focused on the LTE values before and after the crack initiation under the contraction joint region. Experiments were performed on three slabs in which two of these slabs were prepared without reinforcement and one of them was reinforced with steel mesh. Data generated by APT was used for verification of crack propagation modeling in the finite element analysis. Steel mesh reinforced slab gave the lowest vertical deflections (51μm) and highest LTE (91.56%). The LTE value in the reinforced slab after 25,000 passes was 13.63% higher than the average of unreinforced slabs. The findings suggest that the load transfer efficiency was found to be a complex parameter and should be interpreted together with average displacement values when contraction joints are evaluated at early traffic loadings.

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“…They are very successful against many dynamic load types (earthquake, tsunami, blasting, etc.) apart from their main usage purposes [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Analytical Study on Retrofitting Concrete Retaining Wall with Concrete Lining

Tuhta

2023

ICAENS

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Today, retaining walls are gaining importance with the developing transportation networks. Different solutions are made in the design of retaining walls according to the land structure and ground condition. Various retrofitting methods are used in damaged retaining walls. Especially in recent years, natural disasters in Turkey have also affected the retaining walls. There may be damage and collapse in the retaining walls during and after the disaster. It is predicted that in the event of a possible collapse in the event of a disaster, loss of life and property may also occur. After the disaster, even if the retaining walls have not collapsed, they are damaged. In this case, collapse may occur in the next disaster due to collapse or environmental vibrations. It is also known that in post-disaster situations, it is vital that the transportation network remains active in order to deliver the necessary aid to the region. For all these reasons, in this study, the concrete lining method, which is one of the retrofitting methods of retaining walls, is mentioned. Thus, the effect of the concrete lining method applied on an exemplary retaining wallon modal parameters has been demonstrated. In this comparative study, it was observed that the stiffnessof the retaining wall increased with the concrete lining method. As a result of this study, it is suggested to retrofitting the retaining walls with the concrete lining method, taking into account the state of the walland environmental factors.

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Behavior of reinforced concrete plates under impact loading: different support conditions and sizes

Cited by 11 publications

References 8 publications

Anti‐Impact Performance Enhancement of Two‐Way Spanning Slab through the Implementation of Steel Trussed Bars

Anti‐Impact Performance Enhancement of Two‐Way Spanning Slab through the Implementation of Steel Trussed Bars

Evaluation of Load-Transfer Efficiency of Steel Mesh Reinforced Contraction Joints in Concrete Pavement: Accelerated Pavement Test and FE Analysis

Analytical Study on Retrofitting Concrete Retaining Wall with Concrete Lining

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