Publications

2026
BERRAHAL S, CHIKHI A, Khettache L. PARTICLE SWARM OPTIMIZATION IN THE FIELD CONTROL OF A NOVEL ELECTRIC VEHICLE DESIGN BASED ON A LINEAR INDUCTION MOTOR. ADVANCES IN ELECTRICAL AND ELECTRONIC ENGINEERING [Internet]. 2026;24 (1). Publisher's VersionAbstract

This work aims to improve the performance of electric vehicles (EVs) based on linear induction mo tors (LIM). The Particle Swarm Optimization (PSO) method is proposed to tune the PID regulator of the Field-Oriented Control (FOC) technique. The main objective of this study is to develop innovative solutions that maximize the efficiency and precision of electric vehicles on various paths. The LIM model is imple mented using the d-q synchronous reference frame and takes into account the end-effect phenomenon. This phenomenon occurs due to the termination of the mo tor’s physical structure, which leads to distortion in the magnetic field at the ends of the motor’s primary (sta tor). It is also highly nonlinear, which increases its complexity and makes control difficult. To overcome this issue, the Field-Oriented Control (FOC) technique is suggested to achieve better efficiency, dynamic per formance, and greater control flexibility of the motor. Furthermore, the use of the (PSO) optimization tech nique enables the determination of optimal control pa rameters to maximize the performance of the (FOC LIM) system under different operating conditions, such as speed variation and disturbance load. A compari son between the PSO-PID and conventional methods in terms of response stability, steady-state error, and rise time is conducted using MATLAB/Simulink. The results demonstrate a more efficient, precise, and high performing electric vehicle system.

Chenna A, Boubiche D-E, Benyahia A, Homero T-C, Martínez-Peláez R, Velarde-Alvarado P. A Mobility-Aware Zone-Based Key Management Scheme with Dynamic Key Refinement for Large-Scale Mobile Wireless Sensor Networks. Future Internet [Internet]. 2026;18 (3) :175. Publisher's VersionAbstract

Mobile Wireless Sensor Networks (MWSNs) enhance traditional wireless sensor networks by allowing sensor nodes to move, resulting in continuously changing network topologies. Although this mobility enables advanced applications such as disaster response, intelligent transportation systems, and mission-critical monitoring, it poses major challenges for secure and scalable key management in large-scale deployments. Most existing key management and key pre-distribution schemes are tailored to static or lightly mobile networks and therefore suffer from limited scalability, excessive memory consumption, inefficient key utilization, and increased vulnerability to node capture when applied to highly mobile environments. This paper proposes a mobility-aware, zone-based key management scheme that integrates an enhanced composite key distribution mechanism with dynamic key refinement. The network is partitioned into logical zones, each maintaining an independent key pool to confine security breaches and improve scalability. To adapt to mobility-induced topology changes, sensor nodes continuously refine their key rings by preserving only the cryptographic keys associated with persistent neighbor relationships. This selective retention strategy significantly reduces storage overhead while strengthening resilience against key compromise and unauthorized access. Comprehensive analytical modeling and performance evaluations demonstrate that the proposed scheme achieves higher secure connectivity, stronger resistance to node capture attacks, and improved scalability compared to existing approaches, particularly in dense and highly mobile MWSN scenarios.

Chenna A, Boubiche D-E, Benyahia A, Homero T-C, Martínez-Peláez R, Velarde-Alvarado P. A Mobility-Aware Zone-Based Key Management Scheme with Dynamic Key Refinement for Large-Scale Mobile Wireless Sensor Networks. Future Internet [Internet]. 2026;18 (3) :175. Publisher's VersionAbstract

Mobile Wireless Sensor Networks (MWSNs) enhance traditional wireless sensor networks by allowing sensor nodes to move, resulting in continuously changing network topologies. Although this mobility enables advanced applications such as disaster response, intelligent transportation systems, and mission-critical monitoring, it poses major challenges for secure and scalable key management in large-scale deployments. Most existing key management and key pre-distribution schemes are tailored to static or lightly mobile networks and therefore suffer from limited scalability, excessive memory consumption, inefficient key utilization, and increased vulnerability to node capture when applied to highly mobile environments. This paper proposes a mobility-aware, zone-based key management scheme that integrates an enhanced composite key distribution mechanism with dynamic key refinement. The network is partitioned into logical zones, each maintaining an independent key pool to confine security breaches and improve scalability. To adapt to mobility-induced topology changes, sensor nodes continuously refine their key rings by preserving only the cryptographic keys associated with persistent neighbor relationships. This selective retention strategy significantly reduces storage overhead while strengthening resilience against key compromise and unauthorized access. Comprehensive analytical modeling and performance evaluations demonstrate that the proposed scheme achieves higher secure connectivity, stronger resistance to node capture attacks, and improved scalability compared to existing approaches, particularly in dense and highly mobile MWSN scenarios.

Chenna A, Boubiche D-E, Benyahia A, Homero T-C, Martínez-Peláez R, Velarde-Alvarado P. A Mobility-Aware Zone-Based Key Management Scheme with Dynamic Key Refinement for Large-Scale Mobile Wireless Sensor Networks. Future Internet [Internet]. 2026;18 (3) :175. Publisher's VersionAbstract

Mobile Wireless Sensor Networks (MWSNs) enhance traditional wireless sensor networks by allowing sensor nodes to move, resulting in continuously changing network topologies. Although this mobility enables advanced applications such as disaster response, intelligent transportation systems, and mission-critical monitoring, it poses major challenges for secure and scalable key management in large-scale deployments. Most existing key management and key pre-distribution schemes are tailored to static or lightly mobile networks and therefore suffer from limited scalability, excessive memory consumption, inefficient key utilization, and increased vulnerability to node capture when applied to highly mobile environments. This paper proposes a mobility-aware, zone-based key management scheme that integrates an enhanced composite key distribution mechanism with dynamic key refinement. The network is partitioned into logical zones, each maintaining an independent key pool to confine security breaches and improve scalability. To adapt to mobility-induced topology changes, sensor nodes continuously refine their key rings by preserving only the cryptographic keys associated with persistent neighbor relationships. This selective retention strategy significantly reduces storage overhead while strengthening resilience against key compromise and unauthorized access. Comprehensive analytical modeling and performance evaluations demonstrate that the proposed scheme achieves higher secure connectivity, stronger resistance to node capture attacks, and improved scalability compared to existing approaches, particularly in dense and highly mobile MWSN scenarios.

Chenna A, Boubiche D-E, Benyahia A, Homero T-C, Martínez-Peláez R, Velarde-Alvarado P. A Mobility-Aware Zone-Based Key Management Scheme with Dynamic Key Refinement for Large-Scale Mobile Wireless Sensor Networks. Future Internet [Internet]. 2026;18 (3) :175. Publisher's VersionAbstract

Mobile Wireless Sensor Networks (MWSNs) enhance traditional wireless sensor networks by allowing sensor nodes to move, resulting in continuously changing network topologies. Although this mobility enables advanced applications such as disaster response, intelligent transportation systems, and mission-critical monitoring, it poses major challenges for secure and scalable key management in large-scale deployments. Most existing key management and key pre-distribution schemes are tailored to static or lightly mobile networks and therefore suffer from limited scalability, excessive memory consumption, inefficient key utilization, and increased vulnerability to node capture when applied to highly mobile environments. This paper proposes a mobility-aware, zone-based key management scheme that integrates an enhanced composite key distribution mechanism with dynamic key refinement. The network is partitioned into logical zones, each maintaining an independent key pool to confine security breaches and improve scalability. To adapt to mobility-induced topology changes, sensor nodes continuously refine their key rings by preserving only the cryptographic keys associated with persistent neighbor relationships. This selective retention strategy significantly reduces storage overhead while strengthening resilience against key compromise and unauthorized access. Comprehensive analytical modeling and performance evaluations demonstrate that the proposed scheme achieves higher secure connectivity, stronger resistance to node capture attacks, and improved scalability compared to existing approaches, particularly in dense and highly mobile MWSN scenarios.

Chenna A, Boubiche D-E, Benyahia A, Homero T-C, Martínez-Peláez R, Velarde-Alvarado P. A Mobility-Aware Zone-Based Key Management Scheme with Dynamic Key Refinement for Large-Scale Mobile Wireless Sensor Networks. Future Internet [Internet]. 2026;18 (3) :175. Publisher's VersionAbstract

Mobile Wireless Sensor Networks (MWSNs) enhance traditional wireless sensor networks by allowing sensor nodes to move, resulting in continuously changing network topologies. Although this mobility enables advanced applications such as disaster response, intelligent transportation systems, and mission-critical monitoring, it poses major challenges for secure and scalable key management in large-scale deployments. Most existing key management and key pre-distribution schemes are tailored to static or lightly mobile networks and therefore suffer from limited scalability, excessive memory consumption, inefficient key utilization, and increased vulnerability to node capture when applied to highly mobile environments. This paper proposes a mobility-aware, zone-based key management scheme that integrates an enhanced composite key distribution mechanism with dynamic key refinement. The network is partitioned into logical zones, each maintaining an independent key pool to confine security breaches and improve scalability. To adapt to mobility-induced topology changes, sensor nodes continuously refine their key rings by preserving only the cryptographic keys associated with persistent neighbor relationships. This selective retention strategy significantly reduces storage overhead while strengthening resilience against key compromise and unauthorized access. Comprehensive analytical modeling and performance evaluations demonstrate that the proposed scheme achieves higher secure connectivity, stronger resistance to node capture attacks, and improved scalability compared to existing approaches, particularly in dense and highly mobile MWSN scenarios.

Chenna A, Boubiche D-E, Benyahia A, Homero T-C, Martínez-Peláez R, Velarde-Alvarado P. A Mobility-Aware Zone-Based Key Management Scheme with Dynamic Key Refinement for Large-Scale Mobile Wireless Sensor Networks. Future Internet [Internet]. 2026;18 (3) :175. Publisher's VersionAbstract

Mobile Wireless Sensor Networks (MWSNs) enhance traditional wireless sensor networks by allowing sensor nodes to move, resulting in continuously changing network topologies. Although this mobility enables advanced applications such as disaster response, intelligent transportation systems, and mission-critical monitoring, it poses major challenges for secure and scalable key management in large-scale deployments. Most existing key management and key pre-distribution schemes are tailored to static or lightly mobile networks and therefore suffer from limited scalability, excessive memory consumption, inefficient key utilization, and increased vulnerability to node capture when applied to highly mobile environments. This paper proposes a mobility-aware, zone-based key management scheme that integrates an enhanced composite key distribution mechanism with dynamic key refinement. The network is partitioned into logical zones, each maintaining an independent key pool to confine security breaches and improve scalability. To adapt to mobility-induced topology changes, sensor nodes continuously refine their key rings by preserving only the cryptographic keys associated with persistent neighbor relationships. This selective retention strategy significantly reduces storage overhead while strengthening resilience against key compromise and unauthorized access. Comprehensive analytical modeling and performance evaluations demonstrate that the proposed scheme achieves higher secure connectivity, stronger resistance to node capture attacks, and improved scalability compared to existing approaches, particularly in dense and highly mobile MWSN scenarios.

Achouri Y, Djellab R, Hamouid K. New Multiparty Quantum Key Agreement with enhanced efficiency. Computers and Electrical Engineering [Internet]. 2026;130. Publisher's VersionAbstract

Quantum Key Agreement (QKA) is a cornerstone of quantum cryptography, facilitating secure key distribution among multiple participants. Existing QKA protocols often suffer from scalability issues and increased computational complexity as the number of participants grows. This paper proposes an efficient Circle Multiparty Quantum Key Agreement (CMQKA) protocol based on the BB84 protocol. This protocol enhances quantum resource efficiency and ensures equal participation in a circular topology. The key feature lies in the optimized use of quantum resources, minimizing the qubit overhead while ensuring high security standards. By achieving a qubit efficiency of 1/2n, it significantly improves the multiparty quantum communications. A thorough security analysis is conducted to demonstrate the protocol’s resilience against common quantum threats.

Achouri Y, Djellab R, Hamouid K. New Multiparty Quantum Key Agreement with enhanced efficiency. Computers and Electrical Engineering [Internet]. 2026;130. Publisher's VersionAbstract

Quantum Key Agreement (QKA) is a cornerstone of quantum cryptography, facilitating secure key distribution among multiple participants. Existing QKA protocols often suffer from scalability issues and increased computational complexity as the number of participants grows. This paper proposes an efficient Circle Multiparty Quantum Key Agreement (CMQKA) protocol based on the BB84 protocol. This protocol enhances quantum resource efficiency and ensures equal participation in a circular topology. The key feature lies in the optimized use of quantum resources, minimizing the qubit overhead while ensuring high security standards. By achieving a qubit efficiency of 1/2n, it significantly improves the multiparty quantum communications. A thorough security analysis is conducted to demonstrate the protocol’s resilience against common quantum threats.

Achouri Y, Djellab R, Hamouid K. New Multiparty Quantum Key Agreement with enhanced efficiency. Computers and Electrical Engineering [Internet]. 2026;130. Publisher's VersionAbstract

Quantum Key Agreement (QKA) is a cornerstone of quantum cryptography, facilitating secure key distribution among multiple participants. Existing QKA protocols often suffer from scalability issues and increased computational complexity as the number of participants grows. This paper proposes an efficient Circle Multiparty Quantum Key Agreement (CMQKA) protocol based on the BB84 protocol. This protocol enhances quantum resource efficiency and ensures equal participation in a circular topology. The key feature lies in the optimized use of quantum resources, minimizing the qubit overhead while ensuring high security standards. By achieving a qubit efficiency of 1/2n, it significantly improves the multiparty quantum communications. A thorough security analysis is conducted to demonstrate the protocol’s resilience against common quantum threats.

Merghem M, Haoues M, SENOUSSI A, Dahane M, Mouss N-K. Integrated production and maintenance planning in imperfect hybrid manufacturing–remanufacturing systems with outsourcing and carbon emissions. International Journal of Production Economics [Internet]. 2026;291. Publisher's VersionAbstract

This study investigates the integrated planning of production, maintenance, and quality control in a hybrid manufacturing-remanufacturing system, accounting for deterioration, variability in the quality of returned products, carbon emissions, and outsourcing opportunities. The network consists of a manufacturer collaborating with an outsourcing remanufacturing provider. The manufacturer operates a single failure-prone machine to produce new products and to remanufacture returned ones. Recovered products that the manufacturer cannot process are sent to the outsourcing provider for remanufacturing. The system generates harmful emissions, potentially leading to environmental taxes and sanctions. We formulate a mixed-integer nonlinear programming model to determine the optimal integrated manufacturing, remanufacturing, outsourcing, and preventive maintenance plan. Eventually, the proposed strategy minimizes total economic costs and defects and ultimately reduces carbon emissions. We use a global solver for solving small instances, while a genetic algorithm metaheuristic is developed for larger ones. Extensive computational experiments reveal that the developed genetic algorithm is highly efficient, achieving gaps of less than 0.95% within shorter execution times for small instances and significantly outperforming the solver in larger ones. The results show that the integrated outsourcing strategy, combined with accounting for carbon emissions from both new and remanufactured products, significantly reduces the reliance on new products, leading to notable cost savings and environmental benefits. These savings become more pronounced as the number of returns increases.

Merghem M, Haoues M, SENOUSSI A, Dahane M, Mouss N-K. Integrated production and maintenance planning in imperfect hybrid manufacturing–remanufacturing systems with outsourcing and carbon emissions. International Journal of Production Economics [Internet]. 2026;291. Publisher's VersionAbstract

This study investigates the integrated planning of production, maintenance, and quality control in a hybrid manufacturing-remanufacturing system, accounting for deterioration, variability in the quality of returned products, carbon emissions, and outsourcing opportunities. The network consists of a manufacturer collaborating with an outsourcing remanufacturing provider. The manufacturer operates a single failure-prone machine to produce new products and to remanufacture returned ones. Recovered products that the manufacturer cannot process are sent to the outsourcing provider for remanufacturing. The system generates harmful emissions, potentially leading to environmental taxes and sanctions. We formulate a mixed-integer nonlinear programming model to determine the optimal integrated manufacturing, remanufacturing, outsourcing, and preventive maintenance plan. Eventually, the proposed strategy minimizes total economic costs and defects and ultimately reduces carbon emissions. We use a global solver for solving small instances, while a genetic algorithm metaheuristic is developed for larger ones. Extensive computational experiments reveal that the developed genetic algorithm is highly efficient, achieving gaps of less than 0.95% within shorter execution times for small instances and significantly outperforming the solver in larger ones. The results show that the integrated outsourcing strategy, combined with accounting for carbon emissions from both new and remanufactured products, significantly reduces the reliance on new products, leading to notable cost savings and environmental benefits. These savings become more pronounced as the number of returns increases.

Merghem M, Haoues M, SENOUSSI A, Dahane M, Mouss N-K. Integrated production and maintenance planning in imperfect hybrid manufacturing–remanufacturing systems with outsourcing and carbon emissions. International Journal of Production Economics [Internet]. 2026;291. Publisher's VersionAbstract

This study investigates the integrated planning of production, maintenance, and quality control in a hybrid manufacturing-remanufacturing system, accounting for deterioration, variability in the quality of returned products, carbon emissions, and outsourcing opportunities. The network consists of a manufacturer collaborating with an outsourcing remanufacturing provider. The manufacturer operates a single failure-prone machine to produce new products and to remanufacture returned ones. Recovered products that the manufacturer cannot process are sent to the outsourcing provider for remanufacturing. The system generates harmful emissions, potentially leading to environmental taxes and sanctions. We formulate a mixed-integer nonlinear programming model to determine the optimal integrated manufacturing, remanufacturing, outsourcing, and preventive maintenance plan. Eventually, the proposed strategy minimizes total economic costs and defects and ultimately reduces carbon emissions. We use a global solver for solving small instances, while a genetic algorithm metaheuristic is developed for larger ones. Extensive computational experiments reveal that the developed genetic algorithm is highly efficient, achieving gaps of less than 0.95% within shorter execution times for small instances and significantly outperforming the solver in larger ones. The results show that the integrated outsourcing strategy, combined with accounting for carbon emissions from both new and remanufactured products, significantly reduces the reliance on new products, leading to notable cost savings and environmental benefits. These savings become more pronounced as the number of returns increases.

Merghem M, Haoues M, SENOUSSI A, Dahane M, Mouss N-K. Integrated production and maintenance planning in imperfect hybrid manufacturing–remanufacturing systems with outsourcing and carbon emissions. International Journal of Production Economics [Internet]. 2026;291. Publisher's VersionAbstract

This study investigates the integrated planning of production, maintenance, and quality control in a hybrid manufacturing-remanufacturing system, accounting for deterioration, variability in the quality of returned products, carbon emissions, and outsourcing opportunities. The network consists of a manufacturer collaborating with an outsourcing remanufacturing provider. The manufacturer operates a single failure-prone machine to produce new products and to remanufacture returned ones. Recovered products that the manufacturer cannot process are sent to the outsourcing provider for remanufacturing. The system generates harmful emissions, potentially leading to environmental taxes and sanctions. We formulate a mixed-integer nonlinear programming model to determine the optimal integrated manufacturing, remanufacturing, outsourcing, and preventive maintenance plan. Eventually, the proposed strategy minimizes total economic costs and defects and ultimately reduces carbon emissions. We use a global solver for solving small instances, while a genetic algorithm metaheuristic is developed for larger ones. Extensive computational experiments reveal that the developed genetic algorithm is highly efficient, achieving gaps of less than 0.95% within shorter execution times for small instances and significantly outperforming the solver in larger ones. The results show that the integrated outsourcing strategy, combined with accounting for carbon emissions from both new and remanufactured products, significantly reduces the reliance on new products, leading to notable cost savings and environmental benefits. These savings become more pronounced as the number of returns increases.

Merghem M, Haoues M, SENOUSSI A, Dahane M, Mouss N-K. Integrated production and maintenance planning in imperfect hybrid manufacturing–remanufacturing systems with outsourcing and carbon emissions. International Journal of Production Economics [Internet]. 2026;291. Publisher's VersionAbstract

This study investigates the integrated planning of production, maintenance, and quality control in a hybrid manufacturing-remanufacturing system, accounting for deterioration, variability in the quality of returned products, carbon emissions, and outsourcing opportunities. The network consists of a manufacturer collaborating with an outsourcing remanufacturing provider. The manufacturer operates a single failure-prone machine to produce new products and to remanufacture returned ones. Recovered products that the manufacturer cannot process are sent to the outsourcing provider for remanufacturing. The system generates harmful emissions, potentially leading to environmental taxes and sanctions. We formulate a mixed-integer nonlinear programming model to determine the optimal integrated manufacturing, remanufacturing, outsourcing, and preventive maintenance plan. Eventually, the proposed strategy minimizes total economic costs and defects and ultimately reduces carbon emissions. We use a global solver for solving small instances, while a genetic algorithm metaheuristic is developed for larger ones. Extensive computational experiments reveal that the developed genetic algorithm is highly efficient, achieving gaps of less than 0.95% within shorter execution times for small instances and significantly outperforming the solver in larger ones. The results show that the integrated outsourcing strategy, combined with accounting for carbon emissions from both new and remanufactured products, significantly reduces the reliance on new products, leading to notable cost savings and environmental benefits. These savings become more pronounced as the number of returns increases.

2025
Choufi S, Djeffal L. An Algorithm Based on the Modified Sufficient Conditions of the Inertia-Controlling Method for the Global Solution of a General Quadratic Problem. AppliedMath [Internet]. 2025;5 (4). Publisher's VersionAbstract

In this paper, we consider a general quadratic problem (P) with linear constraints that are not necessarily linear independent. To resolve this problem, we use a new algorithm based on the Inertia-Controlling method while replacing the condition of the Lagrange multiplier vector μ by resolution of a linear system obtained thanks to the Kuruch–Kuhn–Tuker matrix (KKT-matrix) in order to determine the minimizing direction of (P) and so calculate the steep length in general cases, as follows: indefinite, concave, and convex cases. This paper has an interesting topic and meaningful results.

Choufi S, Djeffal L. An Algorithm Based on the Modified Sufficient Conditions of the Inertia-Controlling Method for the Global Solution of a General Quadratic Problem. AppliedMath [Internet]. 2025;5 (4). Publisher's VersionAbstract

In this paper, we consider a general quadratic problem (P) with linear constraints that are not necessarily linear independent. To resolve this problem, we use a new algorithm based on the Inertia-Controlling method while replacing the condition of the Lagrange multiplier vector μ by resolution of a linear system obtained thanks to the Kuruch–Kuhn–Tuker matrix (KKT-matrix) in order to determine the minimizing direction of (P) and so calculate the steep length in general cases, as follows: indefinite, concave, and convex cases. This paper has an interesting topic and meaningful results.

Hasrouri S, Kadid A, Yahiaoui D. The Impact of Vertical Seismic Component onConcrete Structures: Analysis and Designaccording to the Algerian Seismic Code (RPA2024). Engineering, Technology & Applied Science Research [Internet]. 2025;15 (3). Publisher's VersionAbstract

This study examines the effect of vertical seismic components on Reinforced Concrete (RC) structures, specifically in the framework of the new Algerian seismic code (RPA 2024). Despite developments in the knowledge of horizontal ground motions, recent earthquakes, such as those in Turkey-Syria (2023) and Algeria (Béjaïa 2021-2022, Boumerdès 2003), have highlighted the significant contribution of vertical accelerations in amplifying structural damage. The current research evaluates low-rise (2-story), mid-rise (6-story), and high-rise (9-story) buildings underseven earthquake records scaled according to RPA 2024 specifications. Using nonlinear dynamic analysis, it advances current knowledge by providing insights into the specific effects of vertical ground motion on the evaluation of variations in internal forces, lateral displacements, and story-level responses, focusing on height-dependent effects, force redistribution, and displacement amplification factors. The results indicate that low-rise buildings (2-story) have negligible effects from combined Horizontal and Vertical (H+V) loading with variations of 5-15%, and mid-rise buildings (6-story) have moderate effects (20-30%). In contrast, high-rise buildings (9 stories) have significant height-dependent variations of 10-35%.

Hasrouri S, Kadid A, Yahiaoui D. The Impact of Vertical Seismic Component onConcrete Structures: Analysis and Designaccording to the Algerian Seismic Code (RPA2024). Engineering, Technology & Applied Science Research [Internet]. 2025;15 (3). Publisher's VersionAbstract

This study examines the effect of vertical seismic components on Reinforced Concrete (RC) structures, specifically in the framework of the new Algerian seismic code (RPA 2024). Despite developments in the knowledge of horizontal ground motions, recent earthquakes, such as those in Turkey-Syria (2023) and Algeria (Béjaïa 2021-2022, Boumerdès 2003), have highlighted the significant contribution of vertical accelerations in amplifying structural damage. The current research evaluates low-rise (2-story), mid-rise (6-story), and high-rise (9-story) buildings underseven earthquake records scaled according to RPA 2024 specifications. Using nonlinear dynamic analysis, it advances current knowledge by providing insights into the specific effects of vertical ground motion on the evaluation of variations in internal forces, lateral displacements, and story-level responses, focusing on height-dependent effects, force redistribution, and displacement amplification factors. The results indicate that low-rise buildings (2-story) have negligible effects from combined Horizontal and Vertical (H+V) loading with variations of 5-15%, and mid-rise buildings (6-story) have moderate effects (20-30%). In contrast, high-rise buildings (9 stories) have significant height-dependent variations of 10-35%.

Hasrouri S, Kadid A, Yahiaoui D. The Impact of Vertical Seismic Component onConcrete Structures: Analysis and Designaccording to the Algerian Seismic Code (RPA2024). Engineering, Technology & Applied Science Research [Internet]. 2025;15 (3). Publisher's VersionAbstract

This study examines the effect of vertical seismic components on Reinforced Concrete (RC) structures, specifically in the framework of the new Algerian seismic code (RPA 2024). Despite developments in the knowledge of horizontal ground motions, recent earthquakes, such as those in Turkey-Syria (2023) and Algeria (Béjaïa 2021-2022, Boumerdès 2003), have highlighted the significant contribution of vertical accelerations in amplifying structural damage. The current research evaluates low-rise (2-story), mid-rise (6-story), and high-rise (9-story) buildings underseven earthquake records scaled according to RPA 2024 specifications. Using nonlinear dynamic analysis, it advances current knowledge by providing insights into the specific effects of vertical ground motion on the evaluation of variations in internal forces, lateral displacements, and story-level responses, focusing on height-dependent effects, force redistribution, and displacement amplification factors. The results indicate that low-rise buildings (2-story) have negligible effects from combined Horizontal and Vertical (H+V) loading with variations of 5-15%, and mid-rise buildings (6-story) have moderate effects (20-30%). In contrast, high-rise buildings (9 stories) have significant height-dependent variations of 10-35%.

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