Behavior study of prestressed concrete wind-turbine tower in circular cross-section

Lana, Jennifer Alves de; Júnior, Pedro Américo Almeida Magalhães; Magalhães, Cristina Almeida; Magalhães, Ana Laura Mendonça Almeida; Andrade, Aniceto C.; Ribeiro, Mariana Silveira de Barros

doi:10.1016/j.engstruct.2020.111403

Cited by 28 publications

(11 citation statements)

References 37 publications

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“…Pre-cast concrete provides stability to resist collapse, which, combined with steel reinforcement, increases ductility. In general, the benefits of the use of concrete include increased structural stability, lower maintenance costs, on-site manufacturing, and higher stiffness controlling the eigenfrequencies and the lateral displacements of the tower [30]. The structural performance of steel and concrete towers was compared in terms of fragility curves.…”

Section: Concrete Towersmentioning

confidence: 99%

“…For the same level of wind speeds, steel towers showed higher probabilities of limit state exceedance [31]. De Lana et al studied the behavior of prestressed concrete wind turbine towers with a circular cross-section [30]. They concluded that circular cross-sections are less expensive compared to the tower with octagonal sections because no internal rings are needed.…”

Section: Concrete Towersmentioning

confidence: 99%

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Recent Advances in Vibration Control Methods for Wind Turbine Towers

2021

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Wind power is a substantial resource to assist global efforts on the decarbonization of energy. The drive to increase capacity has led to ever-increasing blade tip heights and lightweight, slender towers. These structures are subject to a variety of environmental loads that give rise to vibrations with potentially catastrophic consequences, making the mitigation of the tower’s structural vibrations an important factor for low maintenance requirements and reduced damage risk. Recent advances in the most important vibration control methods for wind turbine towers are presented in this paper, exploring the impact of the installation environment harshness on the performance of state-of-the-art devices. An overview of the typical structural characteristics of a modern wind turbine tower is followed by a discussion of typical damages and their link to known collapse cases. Furthermore, the vibration properties of towers in harsh multi-hazard environments are presented and the typical design options are discussed. A comprehensive review of the most promising passive, active, and semi-active vibration control methods is conducted, focusing on recent advances around novel concepts and analyses of their performance under multiple environmental loads, including wind, waves, currents, and seismic excitations. The review highlights the benefits of installing structural systems in reducing the vibrational load of towers and therefore increasing their structural reliability and resilience to extreme events. It is also found that the stochastic nature of the typical tower loads remains a key issue for the design and the performance of the state-of-the-art vibration control methods.

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Section: Concrete Towersmentioning

confidence: 99%

Section: Concrete Towersmentioning

confidence: 99%

Recent Advances in Vibration Control Methods for Wind Turbine Towers

2021

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“…They discovered that the normalized cumulative duration is suitable for describing the occurrence of yield damage, and the energy can be used to determine the damage stage. de Lana et al [29] investigated the mechanical behaviors of prestressed concrete towers on circular sections and used genetic algorithms to optimize the tower structure.…”

Section: Introductionmentioning

confidence: 99%

Reinforced Concrete Wind Turbine Towers: Damage Mode and Model Testing

Liang

et al. 2022

Sustainability

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This study investigates the complex load-bearing mechanism of the reinforced concrete tower of large wind turbines through a structural model test. MTS electro-hydraulic servo loading system was used to load two reinforced concrete tower models for the push-out test. The ultimate bearing capacity of the reinforced concrete tower was found to be 8.894 kN. The test findings revealed that the top of the tower is subjected to unilateral shear as the horizontal load increases. As a result, the concrete strain in the compression zone of the test piece increases to its highest level in the bottom plastic hinge area. The concrete in the compression zone is being crushed in the meantime. The reinforcement achieves its yield point and deforms within the range of plastic failure when subjected to extreme loads. The outcomes of this study serve as a foundation for the running of wind turbines in extreme conditions.

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“…With the increase in unit power capacity of wind turbines, the heights of wind turbine towers have increased for the purpose of capturing wind energy efficiently, as wind profiles are strong and steady at higher elevations [2][3][4]. In recent years, wind turbine towers with a height of over 100 m have been widely employed in practice alongside increasing investment [5]. Many wind farms have been developed or are under construction in mountainous areas in the mainland of China after decades of wind farm development in plain areas.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Wind Turbine Towers Optimization with a Parallel Updated Particle Swarm Algorithm

Chen

et al. 2021

Applied Sciences

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The prestressed concrete–steel hybrid (PCSH) wind turbine tower, characterized by replacing the lower part of the traditional full-height steel tube wind turbine tower with a prestressed concrete (PC) segment, provides a potential alterative solution to transport difficulties and risks associated with traditional steel towers in mountainous areas. This paper proposes an optimization approach with a parallel updated particle swarm optimization (PUPSO) algorithm which aims at minimizing the objective function of the levelized cost of energy (LCOE) of the PCSH wind turbine towers in a life cycle perspective which represents the direct investments, labor costs, machinery costs, and the maintenance costs. Based on the constraints required by relevant specifications and industry standards, the geometry of a PCSH wind turbine tower for a 2 MW wind turbine is optimized using the proposed approach. The dimensions of the PCSH wind turbine tower are treated as optimization variables in the PUPSO algorithm. Results show that the optimized PCSH wind turbine tower can be an economic alternative for wind farms with lower LCOE requirements. In addition, compared with the traditional particle swarm optimization (PSO) algorithm and UPSO algorithm, the proposed PUPSO algorithm can enhance the optimization computation efficiency by about 60–110%.

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Behavior study of prestressed concrete wind-turbine tower in circular cross-section

Cited by 28 publications

References 37 publications

Recent Advances in Vibration Control Methods for Wind Turbine Towers

Recent Advances in Vibration Control Methods for Wind Turbine Towers

Reinforced Concrete Wind Turbine Towers: Damage Mode and Model Testing

Hybrid Wind Turbine Towers Optimization with a Parallel Updated Particle Swarm Algorithm

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