Performance of one-way reinforced concrete walls subjected to blast loads

Abdel‐Mooty, Mohamed; Alhayawei, Sayed; Issa, Mohamed

doi:10.2495/safe-v6-n2-406-417

Cited by 3 publications

(4 citation statements)

References 10 publications

(11 reference statements)

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“…Tables 6-9 summarize the effect of shear wall thickness and placement in mitigating the performances of regular (square and rectangular) and irregular (C and L) shaped buildings. The selection of shear wall parameters in the present study has been influenced by the research conducted by Mooty et al [55], showing the effectiveness of 500 mm thick shear walls in mitigating the damages incurred to the walls. The presence of shear walls has protected and prevented the failures of nearly 25% of members in no-shear wall conditions.…”

Section: Resultsmentioning

confidence: 99%

Blast Mitigation of Reinforced Concrete Structures Incorporating Shear Walls in Modern Building Designs

Raikar,

Kangda,

Wadki

et al. 2023

Buildings

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Material science advancements have resulted in the development of high-strength concrete and steel reinforcement, allowing more efficient and stable buildings against natural and manmade disasters. Increasing security concerns and the potential threat from terrorist activities have led to the safety and resilience of structures against blast loads in modern construction. The present study investigates the performance of reinforced concrete shear walls in mitigating blast-induced vibrations. The study examines four different reinforced concrete buildings based on their shapes, namely square, rectangular, C-shaped, and L-shaped, to understand the blast behaviours with and without shear walls. The study presents a methodology to protect the regular and irregular buildings equipped with shear walls against blast loads at varying standoff distances of 100 m, 200 m, 300 m, and 400 m, respectively. The study also compares the efficiency of passive control dampers and shear walls in enhancing the buildings’ performance against blast vibrations. The best placement of the shear walls is also evaluated for all the selected buildings. The study also considers the effect of shear wall thickness in mitigating blast-induced vibrations in multi-storey buildings. The study also discusses the design guidelines and reinforcement detailing of shear walls to protect buildings against detrimental blast effects.

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Section: Resultsmentioning

confidence: 99%

Blast Mitigation of Reinforced Concrete Structures Incorporating Shear Walls in Modern Building Designs

Raikar,

Kangda,

Wadki

et al. 2023

Buildings

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“…Abdel-Mooty et al [11] carried out an analytical study to examine the response of one-way reinforced concrete walls that are subjected to blast loads using ANSYS AUTODYN software. First of all, a validation model was simulated; this panel was exposed to a pressure of 5.059 MPa.…”

Section: Literature Surveymentioning

confidence: 99%

Investigating the Effect of the Geometry of RC Barrier Walls on the Blast Wave Propagation

Attia¹,

Elwan²,

Kotb³

2021

IJSSE

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Evaluating the performance of several types of reinforced concrete barrier walls subjected to blast loads is the target of this research paper. A parametric study is carried out for nine RC barrier wall systems with different geometries modelled in the three dimensions with different configurations and variable parameters. ANSYS Autodyn software version 18.2 is used to model and analyse these systems using three-dimensional explicit dynamics analysis. The nine systems are studied under the effect of several parameters, such as explosive charge weight (W) and the stand-off distance from the explosion source to the wall (R). Their effect on the wall damage and its deformations and the pressure-induced at different locations are analysed. Eighteen reinforced concrete barrier wall models are studied to achieve this research goal. Comparisons between the results showed the deformation performance of the 60° concave face with planar back walls and the walls with the constant base of 1.0-meter-thick up to 0.5-meter-high with a face hunch up to 2.0-meter-high are better than all other studied walls. However, the concave face-convex back wall that has 70° curvature mitigate the pressure behind the wall by 10% regardless of its deformation.

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“…The remarkable knowledge for blast protection consider Table 5. The below table indicates a resistance increase of concrete wall expressed from the collected data stating the percentage damage due to blast loads in [4].…”

Section: Effect Of Materials On the Blast Resistance Increasementioning

confidence: 99%

“…Application of recyclable materials was investigated by Figuli et al [3]. Prof. Abdel-Mooty et al [4] devoted to his research to the effect of using high strength concrete instead of normal strength concrete.…”

Section: Introductionmentioning

confidence: 99%