Floating platforms made of monolithic closed rectangular tanks

• Autorzy: Szymczak-Graczyk A.

Identyfikatory

DOI

10.24425/122101

• Języki publikacji: EN

Abstrakty

EN

The paper concerns closed monolithic rectangular tanks produced in one stage (one technological process without interruptions or dilatations) that function as floating platforms in inland waters. It presents an analysis of static work of the above-described tanks subject to the hydrostatic load of walls and bottom as well as the uniform load of the upper plate. Calculations were made with the use of the finite difference method in terms of energy, assuming the Poisson’s ratio ν = 0. Based on the obtained results, charts are provided that illustrate the variation of bending moments for the characteristic points of the analysed tanks as per specific workloads. The paper also provides test calculations for buoyancy, stability and the metacentric height for one type of the tank that was produced for the study. In this case, in addition to the above-mentioned loads, the calculation also took into account load temperature and ice load floe. The paper presents photographs taken when launching a pontoon prototype.

Słowa kluczowe

EN

floating platforms; rectangular tank; hydrostatic load; temperature load; ice floe load; bending moment; definite difference method

PL

platformy pływające; zbiornik prostokątny; obciążenia hydrostatyczne; obciążenie temperaturowe; momenty zginające

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2018
• Tom: Vol. 66, nr 2
• Strony: 209--216
• Opis fizyczny: Bibliogr. 20 poz., rys., wykr., tab., fot.

Twórcy

autor

Szymczak-Graczyk A.

• Poznań University of Life Sciences, Institute of Construction and Geoengineering, Piątkowska 94, 60-649 Poznań, Poland

Bibliografia

• [1] C. Woźniak, “Technical Mechanics. Mechanics of Elastic Plates and Shells”. Wydawnictwo Naukowe PWN. Warsaw, 2001, [in Polish].
• [2] W. Buczkowski, “Rechteckige Behälter unter Temperatureinwirkung”. Beton und Stahlbetonbau 11, 266–268 (1991), [in German].
• [3] A. Halicka and M. Grabias, “Failures of concrete and masonry structures. Identification of damage and causes”. Politechnika Lubelska. Lublin, 2016.
• [4] A. Szymczak-Graczyk, “Floating platforms made from monolithic, closed rectangular tanks”. Doctoral thesis. SGGW, Warsaw 2014, [in Polish].
• [5] B. Mazurkiewicz, “Yacht harbors and marinas. Designing”. Foundation fot the Promotion of Industry Shipbuilding and Maritime Economy. Gdańsk, 2010, [in Polish].
• [6] W. Buczkowski, “On reinforcement of temperature loaded rectangular slabs”. Archives of civil engineering. Liv. 2, (2008).
• [7] W. Buczkowski and A. Szymczak-Graczyk, “The influence of the thickness of the bottom of the work and static stability of thw pontoon made as a monlithic closed, reinforced concrete tank”. Modeling of structures and engineering structures. SGGW, Warsaw, (2014), [in Polish].
• [8] W. Buczkowski, A. Szymczak-Graczyk, and Z. Walczak, “The analisis of static works of closed monolithic rectangular tanks”. IV International Scientific Conference, Durability of construction works – science and research. Poznań, (2014).
• [9] Z. Kączkowski, “Plates. Static calculation”. Arkady. Warsaw, 2000, [in Polish].
• [10] R. Szlilard, “Theory and analysis of plates. Classical and numerical methods”. Englewood, Cliffs, New Jersey, Prentice-Hall, 1974.
• [11] P. Wilde, “Variational approach of finite differences in the theory of plate. Materials of XII Scientific Conference of the Commitee of Science PZiTB and the Committee of Civil Engineering of Polish Academy of Sciences. Krynica, (1966), [in Polish].
• [12] AS 3962–2001: The Australian Standard: Guidelines for design of marinas. Sydney, (2001).
• [13] PN–EN 14504:2010 Inland waterway vessels. Marinas floating. Requirements, testing, (2010), [in Polish].
• [14] Z44 “Marinas. Design pronciples. Recommendations for the design of water constructions”. Collective work by B. Mazurkiewicz. Gdansk University of Technology. Volume 21, Gdańsk, 1997, [in Polish].
• [15] PN–EN 1990:2004 Eurokod: Basis of structural design, (2004), [in Polish].
• [16] PN–B–03264:2002 Concrete structures, reinforced and prestressed. Static calculations and design, (2002), [in Polish].
• [17] PN–EN 1992–1–1:2008 Eurocode 2. Design of concrete structures. Part 1–1. General rules and rules for buildings, (2008), [in Polish].
• [18] Z20 „Marine engineering works. Recommendations for design and execution Z1 – Z45”. Collective work by B. Mazurkiewicz. Fundacja Promocji Przemysłu Okrętowego i Gospodarki Morskiej. Gdańsk, 2008, [in Polish].
• [19] A. Szymczak-Graczyk, A. Smoczkiewicz-Wojciechowska, M. Sybis, and H. Szymczak “The impact assessment of ice floe load on floating platforms”. Design, operation, diagnostics and repair of selected structures of general and hydro–technical construction. Institute of Construction and Geoengineering, Poznań University of Life Sciences. Poznań 2015, [in Polish].
• [20] PN–EN 1991–1–5:2005 Eurocode 1. The impact of the structure. Part 1–5: General actions. The thermal actions, (2005), [in Polish].

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).