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Risk of surface blast load on pile foundations
Faculty
Engineering
Year:
2019
Type of Publication:
ZU Hosted
Pages:
15
Authors:
Marwa Nabil Amien Abdallah
Staff Zu Site
Abstract In Staff Site
Journal:
Magazine of Civil Engineering Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russian Federation
Volume:
ISSN 2071-0305
Keywords :
Risk , surface blast load , pile foundations
Abstract:
Recent terrorist attacked has raised the importance of studying the structural response under blast loads. Most of the past research has focused on the superstructure performance without considering the foundation behavior under blast loads. In this research, a pile foundation system was analyzed using detailed finite element analysis using ABAQUS under blast load to investigate the effectiveness of different mitigation techniques. The foundation system includes nine concrete piles encased in steel pipes with external diameters of 0.6 m. The piles have a length of 20 m in silty clay and stiff clay layers. The piles are connected using a reinforced concrete raft with dimensions of 10 m×10 m and a thickness of 1 m. The blast load considered resulted from a surface explosive charge of 457 kg of TNT at a standoff distance 2.5 m from raft and at a height of 0.56 m above ground surface. The raft was loaded by 200 kN/m2 to represent the load transferred from the structure. Barrier walls from different materials including aluminum, rubber, Thermoplastic polyurethane (TPU) and Expanded Polystyrene (EPS) were considered to mitigate the blast load effect on the pile foundation. Also, an open trench before the raft was considered and compared to the used wall barriers. It was observed that the open trench and a wall barrier from Expanded Polystyrene showed the best mitigation to the blast effect compared to the original case and other wall barriers from different materials. A parametric study was conducted to optimize the selected EPS wall barrier in terms of thickness and depth.
Author Related Publications
Marwa Nabil Amien Abdallah, "Numerical analysis of underground tunnels subjected to surface blast loads", Frattura ed Integrità Strutturale, 2021
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Marwa Nabil Amien Abdallah, "Numerical analysis of unconnected piled raft with cushion", Ain Shams Engineering Journal, 2015
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Marwa Nabil Amien Abdallah, "Assessment of structural response of an existing structure under blast load using finite element analysis", Faculty of Engineering, Alexandria University, 2019
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Marwa Nabil Amien Abdallah, "Finite element analysis of multistory structures subjected to train-induced vibrations considering soil-structure interaction", Elsevier Ltd, 2021
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Marwa Nabil Amien Abdallah, "Hyperbolic p-y Criterion for Flexible Piles in Weathered Rock Mass", Journal of Geomechanics, ASCE, ISSN 1532-3641, 2023
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Department Related Publications
Eshak Ibrahiem Eshak Hana, "Non-Linear Analysis of R.C. Slabs under Fire Effect (Parametric Study)", Al Azhar Engineering 6th International Conference, Vol.3, Cairo, Egypt, 2000
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Ehab Boghdady Hana Mattar, "Crack Tip Plasticity of Short Fatigue Crack Emanating from Riveted/Bolted", لايوجد, 1900
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Atef Eraky Bakry Amien, "Newwwwwwwww", لايوجد, 1900
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Nagwa Ragab Mahmoud Elsakhawy, "Peat Characteristics with Consolidation and Creep ", لايوجد, 1900
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Souzan Ali Aboelbarakat, "Strengthening cast iron struts using carbon fibre reinforced polymers – Finite element modelling", Composites: Part B, 2011
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