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Journal articles on the topic 'Concrete offshore structures'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Pérez Fernández, Rodrigo, and Miguel Lamas Pardo. "Offshore concrete structures." Ocean Engineering 58 (January 2013): 304–16. http://dx.doi.org/10.1016/j.oceaneng.2012.11.007.

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2

Hossin, M., and H. Marzouk. "Crack spacing for offshore structures." Canadian Journal of Civil Engineering 35, no. 12 (2008): 1446–54. http://dx.doi.org/10.1139/l08-073.

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The main focus of this investigation is directed toward the examination of crack-spacing expressions suitable for offshore concrete structure applications. Offshore structures are unique structures that are constantly exposed to harsh environmental conditions, including exposure to seawater and sea spray. The splash zone of an offshore structure is the section of the platform that is the most exposed to both a harsh marine environment and seawater. The design of offshore structures is controlled by mandatory design codes to ensure structural safety and integrity. Most of the available expressi

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Ole Olsen, T. "Recycling of offshore concrete structures." Structural Concrete 2, no. 3 (2001): 169–73. http://dx.doi.org/10.1680/stco.2001.2.3.169.

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4

Helland, S. "Service life of concrete offshore structures." Structural Concrete 2, no. 3 (2001): 121–25. http://dx.doi.org/10.1680/stco.2001.2.3.121.

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5

Bashirzade, S. R., A. A. Lipin, and M. A. Hajiyev. "Fire resistance of offshore concrete structures." SOCAR Proceedings, no. 4 (2024): 79–84. https://doi.org/10.5510/ogp20240401021.

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Offshore platforms are constructed in marine environments and designed with special criteria to ensure structural adequacy against environmental conditions. Unexpected factors during the construction and operational phases can impose an extra load on the platform, which may lead to the deterioration of the structural performance. This study focuses on reviewing how these factors induce further loading, such as the effect of fire on a concrete offshore platform. This study considers a case study approach regarding the effects of fire, which acts in conjunction with all other real-life loads tha

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Mathern, Alexandre, Christoph von der Haar, and Steffen Marx. "Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends." Energies 14, no. 7 (2021): 1995. http://dx.doi.org/10.3390/en14071995.

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Today’s offshore wind turbine support structures market is largely dominated by steel structures, since steel monopiles account for the vast majority of installations in the last decade and new types of multi-leg steel structures have been developed in recent years. However, as wind turbines become bigger, and potential sites for offshore wind farms are located in ever deeper waters and ever further from the shore, the conditions for the design, transport, and installation of support structures are changing. In light of these facts, this paper identifies and categorizes the challenges and futu

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Jagtap, Siddhant Millind, Shailesh Kalidas Rathod, Rohit Umesh Jadhav, et al. "Fibre Mesh in Reinforced Slabs." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 3539–40. http://dx.doi.org/10.22214/ijraset.2022.42986.

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Abstract: Fiber Reinforced Concrete is gaining attention as an effective way to improve the performance of concrete. Fibers are currently being specified in tunneling, bridge decks, pavements, loading docks, thin unbonded overlays, concrete pads, and concretes slabs. These applications of fiber reinforced concrete are becoming increasingly popular and are exhibiting excellent performance The usefulness of fiber reinforced concrete in various civil engineering applications is indisputable. Fiber reinforced concrete has so far been successfully used in slabs on grade, architectural panels, preca

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Hishiki, Y., T. Iheya, and Y. Fujii. "Concrete Technology for Offshore Wind Turbine Structures." Concrete Journal 44, no. 7 (2006): 23–29. http://dx.doi.org/10.3151/coj1975.44.7_23.

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9

Gudmestad, O. T., T. A. Warland, and B. L. Stead. "Concrete Structures for Development of Offshore Fields." Journal of Petroleum Technology 45, no. 08 (1993): 762–70. http://dx.doi.org/10.2118/22376-pa.

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10

Adebar, Perry, Ricardo Foschi, and Felix Yao. "Predicting Strength Variability of Concrete Offshore Structures." Journal of Structural Engineering 120, no. 7 (1994): 2108–22. http://dx.doi.org/10.1061/(asce)0733-9445(1994)120:7(2108).

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Kim, Hyun-Gi, and Bum-Joon Kim. "Design Optimization of Conical Concrete Support Structure for Offshore Wind Turbine." Energies 13, no. 18 (2020): 4876. http://dx.doi.org/10.3390/en13184876.

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Various types of support structures for offshore wind turbine have been developed, and concrete structures have attracted attention due to many advantages. Although many studies have been conducted on the design of the existing steel structures, information and research on the design of concrete support structures are insufficient. Therefore, in this paper, a structural analysis model of conical concrete support structure (CCSS) is established and design optimization is presented. A detailed performance evaluation and the design of prestressed concrete were performed under the marine condition

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12

Nessim, Maher A., Han Ping Hong, and James G. MacGregor. "Verification of the material resistance factors in the CSA-S474 code for offshore concrete structures." Canadian Journal of Civil Engineering 20, no. 4 (1993): 660–71. http://dx.doi.org/10.1139/l93-083.

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The Canadian Standards Association has developed a national code for the design, construction and installation of fixed offshore structures. This code was developed on the basis of probabilistic principles. It consists of five parts (CAN/CSA-S471 to S475), dealing with general loading and design requirements, foundations, steel structures, concrete structures, and sea operations. The material resistance factors cited in the part on concrete structures (S474-M1989) were verified using data typical of offshore structures for a set of representative design cases. The test cases were based on rein

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Li, Pei, Jie Li, Ling Fan, et al. "Experimental Investigation into Lightweight High Strength Concrete with Shale and Clay Ceramsite for Offshore Structures." Sustainability 16, no. 3 (2024): 1148. http://dx.doi.org/10.3390/su16031148.

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To develop lightweight high-strength concrete (LWHSC) for offshore structures in a harsh seawater environment, LWHSC with shale and clay ceramsites was designed. LWHSC was experimentally investigated in terms of density, compressive strength, and durability in a coastal environment. Then, its feasibility for offshore structures was also assessed. The results show that the compressive strength and oven dry density of LWHSC appropriately improve with increases in cement content, while they are reduced by the replacement of shale ceramsite with clay ceramsite. The compressive strength of LWHSC al

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Pfoertner, Saskia, Hocine Oumeraci, Matthias Kudella, and Andreas Kortenhaus. "WAVE LOADS AND STABILITY OF NEW FOUNDATION STRUCTURE FOR OFFSHORE WIND TURBINES MADE OF OCEAN BRICK SYSTEM (OBS)." Coastal Engineering Proceedings 1, no. 32 (2011): 66. http://dx.doi.org/10.9753/icce.v32.structures.66.

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The Ocean Brick System (OBS) is a modular system consisting of hollow concrete precast blocs (10m x 10m x 10m) piled up like cubes and interconnected to create a stiff, light and strong structure which can be used for artificial islands, artificial reefs, elevation of vulnerable low lands, deep water ports, breakwaters and foundation of offshore wind turbines. The paper focuses on the experimental results on the wave loading and the stability of the OBS used as a foundation of the support structure of offshore wind turbines. Diagrams for the prediction of total horizontal forces, vertica

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Hu, Cong, Jianfeng Xue, Taicheng Li, Haiying Mao, Haotian Chang, and Wenbing Zhang. "Meshless Numerical Simulation on Dry Shrinkage Cracking of Concrete Piles for Offshore Wind Power Turbine." Buildings 15, no. 12 (2025): 2006. https://doi.org/10.3390/buildings15122006.

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Against the backdrop of the global energy transition, offshore wind power has undergone rapid development. As a vital component of offshore wind power infrastructure, dry shrinkage cracking in concrete piles poses a significant threat to the safe and stable operation of offshore wind power systems. However, the fundamental mechanism of concrete pile cracking during dry shrinkage—particularly the coupled effects of moisture diffusion, meso-structural heterogeneity, and stress evolution—remains poorly understood, lacking a unified theoretical framework. This knowledge gap hinders the development

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Mieloszyk, Eligiusz, Marcin Abramski, and Anita Milewska. "CFGFRPT Piles with a Circular Cross-Section and their Application in Offshore Structures." Polish Maritime Research 26, no. 3 (2019): 128–37. http://dx.doi.org/10.2478/pomr-2019-0053.

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Abstract The possibilities of using concrete piles in a polymer composite reinforced with glass fibres in offshore facilities were shown. Laboratory tests of CFGFRPT type piles compressed axially and in eccentric compression for the analysis of CFGFRPT piles were used. Methods of analysis of dynamic systems for mathematical modelling of the displacement of the hammer in the pile driving process were applied. The possibilities of combining CFGFRPT piles, including the creation of hybrid piles were also presented. For example, concrete piles can be combined with concrete piles in a polymer compo

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Hung, Ngo Xuan, Boris Bulgakov, Olga Aleksandrova, and Anton Pilipenko. "Effect of mineral additives on the adherence strength of reinforced concrete with increased corrosion resistance." E3S Web of Conferences 410 (2023): 01017. http://dx.doi.org/10.1051/e3sconf/202341001017.

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The purpose of this study was to evaluate the corrosion resistance of steel reinforcement in concrete samples containing modifying additives using an accelerated electrochemical corrosion method. It was found that the adhesion strength between the reinforcement and the cement stone of concrete largely depends on the corrosion resistance of the reinforcement in concrete. At the same time, the best result from the tested concretes was shown by the developed concrete of optimal composition, in which the adhesion strength between concrete and reinforcement is 1.7 times higher than that of control

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MALYUK, V. V. "CONCEPT OF THE MODEL OF FROST IMPACT ON CONCRETE OF OFFSHORE STRUCTURES." Building and reconstruction 111, no. 1 (2024): 78–87. http://dx.doi.org/10.33979/2073-7416-2024-111-1-78-87.

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A conceptual approach is presented to predicting the durability of concrete under conditions of frost exposure and strong saturation based on the actual work of concrete in the structures of port facilities on the sea coast of the south of the island. Sakhalin. It is shown that the lack of methods for predicting concrete corrosion under frost exposure, despite the large amount of theoretical and experimental work on this topic, is due to the diversity and synergistic effect of factors that determine durability. It has been established that the multicyclic effect of sign-variable temperatures d

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Fedosov, Sergey Viktorovich, Olga Vladimirovna Aleksandrova, Azariy Abramovich Lapidus, Tatiana Konstantinovna Kuzmina, and Dmitriy Vladimirovich Topchiy. "An Engineering Method of Analyzing the Dynamics of Mass Transfer during Concrete Corrosion Processes in Offshore Structures." Materials 16, no. 10 (2023): 3705. http://dx.doi.org/10.3390/ma16103705.

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The environment of an underground structure is much more complex than the above-ground environment. Erosion processes are underway in soil and groundwater; groundwater seepage and soil pressure are also typical for underground environments. Alternating layers of dry and wet soil have a strong effect on concrete, and they reduce its durability. Corrosion of cement concretes is caused by the diffusion of free calcium hydroxide, located in the pores of concrete, from the volume of the cement stone to its surface, bordering on an aggressive environment, and the further transition of the substance

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Ito, Yoshihide, Yuitiro Asai, Norihiro Oritani, Hiroshi Saeki, and Harukuni Tatibana. "Estimation Method for Abration of Amount of Concrete Offshore Structures." PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN 7 (1991): 243–46. http://dx.doi.org/10.2208/prooe.7.243.

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21

Fujiyama, Chikako, and Wichuda Munbua. "Toward the Realization of Concrete Floating Structures for Offshore Wind Power Generation in Japan." E3S Web of Conferences 445 (2023): 01002. http://dx.doi.org/10.1051/e3sconf/202344501002.

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In this paper, an overview of the contents of the Design and Construction Guidelines for Concrete Floating Offshore Wind Power Facilities in Japan was provided. According to the guideline, a case study of a concrete floating structure supporting 10MW wind turbines was presented. The structural safety and durability were assessed based on stresses and strains obtained from nonlinear FE analysis even if the design load case applied in this study was limited. It is expected that further detailed examinations of concrete floating structures ultimately contribute to adoption and promotion of concre

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Liu, Qing-feng, Zhi Hu, Xian-yang Lu, Jian Yang, Iftikhar Azim, and Wenzhuo Sun. "Prediction of Chloride Distribution for Offshore Concrete Based on Statistical Analysis." Materials 13, no. 1 (2020): 174. http://dx.doi.org/10.3390/ma13010174.

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Chloride-induced corrosion is the main threat to the service life of concrete structures. In order to better investigate chloride distribution in offshore concrete, this study proposed a new prediction model based on statistical analysis as well as a large body of experimental results collected from various sources. A detailed discussion found that the key influential parameters, such as diffusion coefficient ( D ), surface chloride concentration ( C S ) and penetration depth ( x ) are all highly time-dependent. The exposure zone, water–cement ratio and service time were also considered as rel

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J.A. Eicher, H. Guan, and D. S. Jeng. "parametric study of an offshore concrete pile under combined loading conditions using finite element method." Electronic Journal of Structural Engineering 2 (January 1, 2002): 32–43. http://dx.doi.org/10.56748/ejse.223.

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Offshore piles are commonly used as foundation elements of various offshore structures, especially large structures such as Tension Leg Platforms (TLP). The stress distribution within such a large structure is a dominant factor in the design procedure of an offshore pile. To provide a more accurate and effective design, a finite element model is employed herein to determine the stresses and displacements in a concrete pile under combined structural and wave loadings. The vertical structural load is essentially a static load, while the lateral wave loading fluctuates in time domain and is direc

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Vázquez, Kerman, Raúl Rubén Rodríguez, and M. Dolores Esteban. "Corrosion Prediction Models in the Reinforcement of Concrete Structures of Offshore Wind Farms." Journal of Marine Science and Engineering 10, no. 2 (2022): 185. http://dx.doi.org/10.3390/jmse10020185.

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The growth of offshore wind farms (OWF’s) is expected to be significant. Reducing operation and maintenance (O&M) costs will be important to ensure its development. The foundation is the most important structural element, with concrete as its main constituent. With concrete structures, particular attention must be paid to corrosion of embedded steel especially in marine environments, as poor maintenance management can have significant economic and structural safety consequences. This article presents a systematic analysis of prevalent corrosion prediction models and the subsequent developm

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Shin, Yunsup, Thomas Langford, Kyunghwan Cho, Jongheon Park, and Junyoung Ko. "Applicability of Concrete–Steel Composite Piles for Offshore Wind Foundations." Energies 14, no. 16 (2021): 4794. http://dx.doi.org/10.3390/en14164794.

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Offshore wind-turbine support structures are largely made of steel since steel monopiles have accounted for the majority of installations in the last decade. As turbines become bigger, steel structures have led to an exponential increase in material and installation costs. From this point of view, the use of concrete for future support structures has been initiated. In this study, concrete–steel composite piles have been investigated. A pre-tensioned high strength concrete pile was placed in the lower part, mainly to support the axial load, and a steel pile in the upper part to resist the late

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Sangeetha, P., and M. Shanmugapriya. "Prediction of mechanical strength of polypropylene fibre reinforced concrete using artificial neural network." Gradjevinski materijali i konstrukcije 63, no. 4 (2020): 79–86. http://dx.doi.org/10.5937/grmk2004079s.

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The usefulness of fibre reinforced concrete (FRC) in various civil engineering applications is indisputable. Fibre reinforced concrete has been successfully used so far in construction of structures like bridges, industrial structures, concrete, architectural panels, precast products, offshore structures and many other applications. This paper presents the study on the mechanical properties of the polypropylene fibre reinforced concrete. The parameters varied in the study include volume of fibre (0%, 0.5%, 1.0%, 1.5% & 2.0%) and the curing period (7 days and 14 days). From the study it is

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BAKLYKOV, I. V. "Numerical analysis of the behavior of bendable reinforced concrete beams made of lightweight high-strength concrete with different reinforcement coefficients." Prirodoobustrojstvo, no. 4 (2022): 84–89. http://dx.doi.org/10.26897/1997-6011-2022-4-84-89.

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Lightweight high-strength concrete structures are currently spreading, primarily in civil engineering and bridge construction. High-strength lightweight aggregate concrete has advantages over heavyweight concrete when used in structures that must have high strength and buoyancy due to lower density and high enough strength. In this regard, it seems appropriate to use lightweight high-strength concrete in hydraulic engineering construction in offshore oil platforms and dry dock gate. In the presented work, computational studies of the stress-strain state of reinforced concrete beam structures m

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El-Khoury, Marinelle, Frédéric Grondin, Emmanuel Roziere, Rachid Cortas, and Fadi Hage Chehade. "A non-linear multiscale chemo-mechanical model describing the delayed evolution of concrete structures in marine environments." Mechanics & Industry 24 (2023): 25. http://dx.doi.org/10.1051/meca/2023023.

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The failure of offshore structures is a major issue as they lead to economic, environmental, and social disasters. Assessing the durability and long-term behavior of these structures subjected to chemical and mechanical degradation is subsequently critical. The analysis of these coupled phenomena induced by seawater attack and mechanical loading is complex and requires the development of innovative measurement systems and modelling strategies. Thus, multiscale protocols, starting from the microscopic scale of the cement paste, seems relevant for the characterization of the chemo-mechanical beh

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Kroeders, Merel, Leopoldo Franco, Marco Del Bianco, Jentsje van der Meer, Maysara Tahan, and Ahmed Yehia. "A LARGE PERCHED BEACH SCHEME IN DEEP WATERS." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 82. https://doi.org/10.9753/icce.v38.structures.82.

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Nowadays the need for creating land to establish new cities at more favourable locations, namely close to water, has increased. These new reclaimed cities are expanding more offshore, therefore facing severe and challenging wave conditions. Combining conventional coastal protection design (e.g. rock/concrete revetments) with these challenging conditions is expensive and non- attractive for visual, environmental and social aspects. Alternatives can be considered where hard and soft coastal protection measures are combined. Perched beaches are typically artificial beaches that are supported or p

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Amiri, Nima, Mohammad Shaterabadi, Kazem Reza Kashyzadeh, and Mahmoud Chizari. "A Comprehensive Review on Design, Monitoring, and Failure in Fixed Offshore Platforms." Journal of Marine Science and Engineering 9, no. 12 (2021): 1349. http://dx.doi.org/10.3390/jmse9121349.

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Offshore platforms have had diverse applications in the marine industry, for example, oil or gas platforms can provide facilities to store the oil and gas before transport those to refineries. Offshore wind turbines are another well-known use of the offshore platform for generating power. As platforms encounter various strong forces from water and wind currents, the materials used for these structures are mainly steel or concrete. These platforms are classified into different types, according to the depth of water and their applications. In addition, offshore platforms, as artificial reefs may

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Wei, Xie, Zhongying Xu, and Haozhe Zhang. "Progress in Corrosion and Protection Research in Offshore Petroleum Engineering." Journal of Innovation and Development 8, no. 3 (2024): 28–33. http://dx.doi.org/10.54097/7ta2ef51.

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This paper summarizes the latest research progress on the corrosion of concrete structures in marine engineering and its protection technology. The article firstly emphasizes the influence of seawater on the performance of concrete engineering, and then discusses the application of composite corrosion inhibitors in the marine environment. The composite corrosion inhibitor significantly reduces the corrosion rate by simultaneously inhibiting the anodic and cathodic reactions and forming a protective hydrophobic film on the metal surface. The article describes in detail the classification of cor

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Hwang, Ju-young, and Minsuk Shim. "Experimental Evaluation Method of Carbonation in Concrete Structure Using Nonlinear Resonant Ultrasonic Spectroscopy." Journal of the Korean Society of Hazard Mitigation 23, no. 1 (2023): 141–46. http://dx.doi.org/10.9798/kosham.2023.23.1.141.

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Carbonation is a typical type of concrete deterioration that can cause various physicochemical changes and adversely affects the performance of reinforced concrete structures, particularly in offshore structures. Nonlinear resonant ultrasonic spectroscopy (NRUS), which is a non-destructive test technique, is applied in this study to experimentally evaluate the degree of concrete carbonation without damaging the structure. Nonlinearity parameters of test specimens exposed to accelerated carbonation conditions are measured via NRUS. The measured nonlinearity parameters indicate lower values for

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Ben, Nengjun, Oleg Vytyaz, Xin Jin, Roman Hrabovskyi, and Bogdan Kopei. "Failure analysis during the operation of offshore oil and gas structures." Nafta-Gaz 79, no. 8 (2023): 529–36. http://dx.doi.org/10.18668/ng.2023.08.04.

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Failures caused by offshore oil and gas structures operations are investigated. This work is based on the description and analysis of real case studies of accidents on offshore stationary and floating platforms; it combines foundational knowledge and current research on the latest developments in the field. It was shown that strength characteristics of offshore reinforced concrete and steel elements change during operation and cause the accumulation of defects and damages. It was established that corrosive wear, corrosion-mechanical processes, and crack-like defects are the decisive causes of

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Kuzmin, Yu L., and O. A. Stavitsky. "Electrochemical protection against corrosion for steel bars in reinforced concrete structures exposed to seawater." Voprosy Materialovedeniya, no. 4(96) (January 8, 2019): 185–90. http://dx.doi.org/10.22349/1994-6716-2018-96-4-185-190.

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The paper analyzes ways to ensure long service life (up to 50 years) of reinforced concrete marine structures. It has been established that durability and maintenance-free operation of floating and coastal offshore structures for 50 and more years depend on corrosion of steel reinforcement which could be avoided by applying electrochemical protection. The parameters of electrochemical protection against corrosion of steel fittings are given.

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Fedosov, Sergey, Boris Bulgakov, Hung Xuan Ngo, Olga Aleksandrova, and Vadim Solovev. "Theoretical and Experimental Models to Evaluate the Possibility of Corrosion Resistant Concrete for Coastal Offshore Structures." Materials 15, no. 13 (2022): 4697. http://dx.doi.org/10.3390/ma15134697.

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This study built theoretical and practical models to evaluate the corrosion resistance of concrete for coastal offshore structures in Vietnam. A mathematical model was developed in the form of a system of nonlinear partial differential equations characterizing the diffusion “free calcium hydroxide” in a solid of a concrete structure. The model describes the process of non-stationary mass conductivity observed in the “concrete structure—marine environment” system under non-uniform arbitrary initial conditions, as well as combined boundary conditions of the second and third kind, taking into acc

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Li, Wenchao, Huaikuan Wang, Jiangshun Wu, et al. "An Integrated Model for Mass Transport, Corrosion Propagation, and Cracking in Offshore Reinforced Concrete Structures." Coatings 15, no. 2 (2025): 172. https://doi.org/10.3390/coatings15020172.

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The corrosion of steel reinforcements substantially degrades the longevity of reinforced concrete structures, particularly in marine settings. This investigation introduces a comprehensive model that simulates the processes involved in moisture and chloride ion transport, rebar corrosion, and the consequent cracking of concrete. The model reveals that the transport dynamics of chloride ions are primarily dictated by their penetration rates through the solution. The sensitivity of the steel to corrosion is a function of the concentrations of water and chloride ions, whereas the rate of corrosio

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Zhang, Xihong, Wahidul K. Biswas, Andy Watt, Lendyn Philip, and Shaun Sadler. "Techno-Economic and Environmental Analysis of Decommissioned Flowline, Umbilical, and Tubular for Breakwaters." Buildings 13, no. 1 (2023): 225. http://dx.doi.org/10.3390/buildings13010225.

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This paper presents the application of recycled tubular, flowline, and umbilical in coastal protection structures. Flowline and tubular are found to improve the load resistance capacity of concrete beams. Embedment of flowline, umbilical, and tubular into concrete beams would be beneficial to the structural performance, which do not noticeably alter the initial cracking strength of the concrete beam but will provide good post-cracking resistance. A techno-economic analysis was performed, which revealed that coastal protection concrete structures with decommissioned components accounting for mo

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Yang, Qianfan, Yuching Wu, Peng Zhi, and Peng Zhu. "Effect of Micro-Cracks on Chloride Ion Diffusion in Concrete Based on Stochastic Aggregate Approach." Buildings 14, no. 5 (2024): 1353. http://dx.doi.org/10.3390/buildings14051353.

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For concrete structures in offshore areas, chloride ion erosion is one of the main factors affecting durability. It is crucial to evaluate the chloride ion permeability resistance of concrete structures. In this paper, a finite element simulation of the chloride ion diffusion process in concrete is conducted. A mass diffusion finite element model based on a random aggregate approach is established to investigate the influences of an aggregate, the interface transition zone, and micro-cracks on the chloride ion diffusion coefficients in concrete. The results show that the mass diffusion finite

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Malikov, Azamatjon Kakhramon ugli, Young H. Kim, Jin-Hak Yi, Jeongnam Kim, Jiannan Zhang, and Younho Cho. "Neural-Network-Based Ultrasonic Inspection of Offshore Coated Concrete Specimens." Coatings 12, no. 6 (2022): 773. http://dx.doi.org/10.3390/coatings12060773.

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A thin layer of protective coating material is applied on the surface of offshore concrete structures to prevent its degradation, thereby extending the useful life of the structures. The main reasons for the reduction in the protective capability of coating layers are loss of adhesion to concrete and flattening of the coating layer wall. Usually, the state of the coating layer is monitored in the setting of water immersion using ultrasonic inspection methods, and the method of inspection still needs improvement in terms of speed and accuracy. In this study, the ultrasonic pulse echo method was

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Adakole Okpe, Samuel, and Joseph Ejelikwu Edeh. "Analysis, design and construction of gravity offshore structure; state-of-the-art." International Journal of Advanced Engineering, Sciences and Applications 3, no. 1 (2022): 12–17. http://dx.doi.org/10.47346/ijaesa.v3i1.74.

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Abstract: Offshore platforms are divided into many types which are mainly categorized according to waterdepth in the installation location. However, the design differs for each type to accomplish the target of the operation. But for some case of sea waterdepths and an aggressive environment such as the North Sea, steel ones are not suitable, so the heaviest type called gravity platform having enormous mass is used. This type of platform has its special requirements and procedures for construction and needs special types of construction materials in order to resist the climate factors applied d

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Velarde, Joey, Claus Kramhøft, Amol Mankar, and John Dalsgaard Sørensen. "Uncertainty Modeling and Fatigue Reliability Assessment of Offshore Wind Turbine Concrete Structures." International Journal of Offshore and Polar Engineering 29, no. 2 (2019): 165–71. http://dx.doi.org/10.17736/ijope.2019.il54.

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Velarde, Joey, Amol Mankar, Claus Kramhøft, and John Dalsgaard Sørensen. "Probabilistic calibration of fatigue safety factors for offshore wind turbine concrete structures." Engineering Structures 222 (November 2020): 111090. http://dx.doi.org/10.1016/j.engstruct.2020.111090.

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Kim, L. V., and E. E. Shaly. "Capillary-Porous Effects in Concrete during Ice Abrasion." Solid State Phenomena 265 (September 2017): 513–17. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.513.

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The ice drift velocities up to 2 m/s in the Sea of Okhotsk can cause severe abrasion due to mechanical contact with offshore concrete structures. The abrasion process of concrete includes cement paste and aggregate particles removed from the concrete surface. Testing procedures in the ice abrasion laboratory of Far Eastern Federal University coupled to a numerical simulation model of ice sheet-structure contact are described. The existing models account only for mechanical ice-concrete interaction, ignoring water flow into the concrete surface due to hydraulic pressure, substructure of ice fea

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Zhao, Gaowen, Mei Shi, Mengzhen Guo, and Henghui Fan. "Degradation Mechanism of Concrete Subjected to External Sulfate Attack: Comparison of Different Curing Conditions." Materials 13, no. 14 (2020): 3179. http://dx.doi.org/10.3390/ma13143179.

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Sulfate induced degradation of concrete brings great damage to concrete structures in saline or offshore areas. The degradation mechanism of cast-in-situ concrete still remains unclear. This paper investigates the degradation process and corresponding mechanism of cast-in-situ concrete when immersed in sulfate-rich corrosive environments. Concrete samples with different curing conditions were prepared and immersed in sulfate solutions for 12 months to simulate the corrosion of precast and cast-in-situ concrete structures, respectively. Tests regarding the changes of physical, chemical, and mec

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Abdi Perdanawati, Rizqi, Puput Risdanareni, Davin H. E. Setiamarga, and Januarti Jaya Ekaputri. "The Effect of Biofouling on Cement based Concrete Substrate: Insights from Microfouling and Macrofouling Growth." BIO Web of Conferences 157 (2025): 06001. https://doi.org/10.1051/bioconf/202515706001.

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Biofouling poses a significant impact to the durability of offshore structures and vessels, yet its impact on cement-based concrete structures in marine environments remains underexplored. This study investigated biofouling growth on concrete substrates both microbial biofilms (microfouling) up to macrofouling and their effect on cement based concrete surface. The discussion is supported by a literature review to contextualize the findings. The type and growth of microorganisms forming biofilms and macrofouling are influenced by the specific marine environment, substrate characteristics, and i

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Mioduszewski, Tomasz, Aleksandra Maliszewska, Aleksandra Lewandowska, and Aleksandra Wawrzyńska. "Concrete corrosion in seaward walls of marine breakwaters." Inżynieria i Budownictwo LXXX, no. 6 (2024): 426–30. http://dx.doi.org/10.5604/01.3001.0054.7482.

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Most offshore hydrotechnical structures, once completed and put into service, work both above and below the water surface. Modernization, repair or reinforcement of concrete or reinforced concrete structures in constant contact with salt water poses many problems. The most difficult task is to ensure and maintain efficiency, as well as continuity and readiness to work during the renovation of the structure. The paper presents examples of concrete corrosion that can occur in marine breakwaters; the types of impacts are defined, as well as the associated types of corrosion. The main part of the

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Hammad, Dabo Baba, Nasir Shafiq, and Muhd Fadhil Nuruddin. "Vectors of Defects in Reinforced Concrete Structures in Onshore Oil and Gas Process Plants." Advances in Civil Engineering 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/3953972.

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There is a global outcry over the speedy deterioration of structures in oil and gas facilities. While marine environment is considered the leading factor in the deterioration of offshore structures, there is no single factor considered as the main cause of the problem in onshore structures. Therefore, the aim of this paper is to present the result of global survey on the major factors causing the deterioration of concrete structures in onshore oil and gas facilities. To realize the objectives of the paper, an e-questionnaire was administered through two International LinkedIn groups with a mem

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Fursov, A. Yu. "The operation of the cone shell blocks of offshore structures under ice impact." Oil and Gas Studies, no. 3 (July 8, 2020): 63–74. http://dx.doi.org/10.31660/0445-0108-2020-3-63-74.

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The prospects for the development of the Azov-Black sea region of the Russian Federation are primarily related to the development of the deep-water part of the Black Sea. In general, the forecast hydrocarbon resources are estimated at 1,5-2,4 trillion m3 in gas equivalent. Ice loads are one of the most important factors determining the stress state of the entire stationary platform when developing and designing offshore structures for the gas field in the Sea of Azov. The author of the article proposes to install special structures, such as cone icebreaking devices, at the contact points. An a

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Ahmad, Omar. "An overview of design, construction and installation of gravity offshore platforms." International Journal of Advanced Engineering, Sciences and Applications 3, no. 1 (2022): 27–32. http://dx.doi.org/10.47346/ijaesa.v3i1.81.

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The offshore structures are used worldwide in different ways and for different purposes in a variety of weather conditions and water depths. The main aim of these structures is to explore and extract the gas and oil and it should works safely for approximately 25 years or more against some conditions. These structures plays a vital role on developing the economic level of the country and it is essential to be accurate in all of their planning, designing, manufacturing, transporting, and installing processes. There are many types these platforms which differ according to their function and the

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Carpenter, Chris. "Life-Extension Project Applies Assessment of Reinforced Concrete to Nonjacket Structures." Journal of Petroleum Technology 73, no. 09 (2021): 53–54. http://dx.doi.org/10.2118/0921-0053-jpt.

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This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper OTC 31250, “Wandoo B: Application of Advanced Reinforced Concrete Assessment for Life Extension for Non-Jacket Structures,” by Robert Sheppard, Spire Engineering; Colin O’Brien, Vermilion Oil and Gas; and Yashar Moslehy, Spire Engineering, et al., prepared for the 2021 Offshore Technology Conference, originally scheduled to be held in Houston, 4–7 May. The paper has not been peer reviewed. Copyright 2021 Offshore Technology Conference. Reproduced by permission. Wandoo B is a concrete gravity-based stru

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