EP3210874A1 - Platteforme flottante - Google Patents

Platteforme flottante Download PDF

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Publication number
EP3210874A1
EP3210874A1 EP16460010.8A EP16460010A EP3210874A1 EP 3210874 A1 EP3210874 A1 EP 3210874A1 EP 16460010 A EP16460010 A EP 16460010A EP 3210874 A1 EP3210874 A1 EP 3210874A1
Authority
EP
European Patent Office
Prior art keywords
deck
station
work platform
pontoons
longitudinal axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16460010.8A
Other languages
German (de)
English (en)
Inventor
Malwina Wodzynska
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centrum Badawcze Powlok Ochronnych Cebapo Sp Z OO
Original Assignee
Centrum Badawcze Powlok Ochronnych Cebapo Sp Z OO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centrum Badawcze Powlok Ochronnych Cebapo Sp Z OO filed Critical Centrum Badawcze Powlok Ochronnych Cebapo Sp Z OO
Priority to EP16460010.8A priority Critical patent/EP3210874A1/fr
Publication of EP3210874A1 publication Critical patent/EP3210874A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/34—Pontoons
    • B63B35/38—Rigidly-interconnected pontoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/28—Barges or lighters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Definitions

  • the present invention relates to a universal portable and modular, floating station for application of coats, especially metal and organic, on steel and reinforced concrete structures of hydrotechnical building structures and crossings.
  • the station is placed on a barge-type floating unit.
  • the innovative use of a floating structure supported on connected floats is intended for use in all hydrotechnical works that require access to the structure from the water side.
  • the structure of the present invention can be used in particular during construction of bridge crossings, performance of erection and protection works on bridge structures and other structures surrounded by water.
  • the invention is particularly suitable for use as a floating station for heat spraying of a melted stream of metal on metal structures.
  • the method according to the invention assumes use of the structure of the present invention for performance of maintenance and repair works using heat spraying of a melted stream of metal, especially zinc and aluminum.
  • bridge structures are equipped with suspended maintenance platforms, but they are not suitable to withstand the load of the equipment used in modern maintenance methods.
  • a solution that enables conducting maintenance and repair works without the need to shut structures down is to place the technical facilities in close vicinity of the works, i.e. on the surface of the water, by using a specially designed floating station of the present invention.
  • Corrosion very highly contributes to loss of the media transmitted in pipelines. It is estimated that every 4-5 years, a yearly steel production is used to make up for corroded steel. It is estimated that the average yearly cost of corrosion to each person worldwide is USD 1,000. The economic losses caused by corrosion can be reduced thanks to introduction of new coating materials of durability that ensures many years of protection and of low associated maintenance costs. What is unique in the new approach to the corrosion problem is the interest in heavy corrosion protections made mostly by heat spraying of coating materials, in most cases alloys of such materials as zinc and aluminum.
  • a spraying station consists as a minimum of a generator set, a compressor unit, a temporary storage site for abrasive material, a temporary storage space for coating material, and an elevating work platform.
  • the total weight of such a station is equal to several tons. Operation of a gun that uses electric arc for melting of metal rods and ejecting a stream of melted metal at a high pressure requires a stable work platform.
  • the purpose of the present invention is to create a floating station for performance of corrosion-protection works on hydrotechnical building structures that is stable and, moreover, whose displacement is appropriate for the weight of the spray station, whose draft is small, and which is resistant to the action of waves.
  • Other key parameters of the structure are its floatability and stability.
  • the design of the present invention should make it possible to disassemble it and move it to another location.
  • the worker performing work on the platform must be safe even during strong wind gusts.
  • the maximum wind speed allowed for scissor lifts is 5 m/s.
  • strong wind gusts that produce pressure on the level of 20 kg/m2, during which the platform should remain stable. It must be assumed that the deck of the unit may not tilt by more than 10 degrees.
  • a known military pontoon designated as PP-64 that is used for construction of pontoon bridge crossings. Pontoons of this type are connected to each other directly using side or stern pin fasteners, to form lines of any configuration. The use of such a connection system makes it possible to organize bridge and ferry crossings of any carrying capacity and length.
  • a single PP-64 pontoon-segment is a fully welded structure made of structural steel. The internal structure of stringers and bulkheads ensures appropriate rigidity, strength, and safety of use.
  • a PP-64 type pontoon consists of a spatial frame, which constitutes the load-bearing structure of the pontoon, and external plating in the form of profiled sheet metal of appropriate thickness.
  • the frame of the pontoon includes: two bulkheads with side fasteners, which are used to connect segments into assemblies of appropriate configuration, on which the lattice of the deck is positioned, which is used to transfer the load present on the surface of the assembly onto the entire structure.
  • Side rabbets are used to stiffen the structure and the bottom of the pontoon by connecting them with the skid and the central stringer.
  • WO2009028935 demonstrates unusual use of a known pontoon floating structure with a variable shape of the hull.
  • the required floatability of the platform is achieved by dynamically changing the shape of the hull.
  • Variability of the shape of the hull is achieved by using pumpable pontoon elements in the central part of the hull.
  • the American description of the invention US5775248 presents a stabilized float with attachable sides and sterns.
  • the float is the shape of a polygon, preferably made of plastic, and its side, stern, and bow have a number of keys and tongues that make it possible to connect the float to another float of the invention.
  • the upper chambers of the float are filled with a medium that ensures the required floatability, such as a closed-cell foam, while the lower chamber of the float has openings that enable access of water to fill the lower part of the float, which in turn improves that stability of the entire structure when the float is subject to the action of waves or to unusual loads.
  • the degree of stability or dampening is variable according to the size of the lower chamber and to the dimensions, location, and number of the opening that enable access of water into the lower chamber.
  • the essence of the solution of the present invention consists in use of floats in the form of the known PP-64 pontoons to build a barge-type floating unit.
  • This type of pontoon in the present invention is used as a module to create a floating work platform that makes it possible to install a station for heat spray of a stream of melted metal.
  • the platform consists of floats connected to each other by the sides, three in each row, with rows connected using stern fasteners. This connection, which complies with the operating instruction, makes it possible to create a stable and strong platform for repair and maintenance work on hydrotechnical building structures and crossings, using the heat spray method.
  • a single truss has the form of a metal clasp that consists of two vertical telescopic supports connected with a binding horizontal element.
  • the clasp of the truss is made of three steel profiles or pipes.
  • the elements that form a single truss are preferably connected with at least two angular connectors that fit the shape of the telescopic supports and the horizontal element.
  • the trusses are placed transversely to the platform, above the bow bulkheads, and bind three pontoons in one row.
  • the vertical telescopic supports are equipped with technical means of control of the depth of their immersion and moreover, are fitted with adjustable stabilizer that rest on the bottom of the water reservoir or watercourse.
  • the elevating work platform on which a lift is installed, that enables access of workers to higher elements of the building structure, is located in the central part of the deck, along its longitudinal axis.
  • An optimum distribution of load is achieved when the center of the elevating work platform overlaps the cross-section of the transverse and longitudinal axis of the deck.
  • Containers or temporary storage spaces for abrasive materials and coating materials are located on the opposite sides of the elevating work platform, at identical distances from the sides and ends of the elevating work platform.
  • the source of electricity namely the generator set, is located behind one of the ends of the elevating work platform and is perpendicular to the longitudinal axis of the deck.
  • the compressor unit that generates a stream of gas that carries melted metal is located on the opposite end of the elevating work platform. The compressor unit is located along the longitudinal axis of the deck.
  • a floating metallization station consisting of six floats 1 in the form of PP-64 type pontoons connected by sides, in two rows of three, whereby the rows are connected to each other by sterns. All connections, both side and stern, are made using pin fasteners 2.
  • Each of the two rows of the assembly is additionally connected and fastened using a truss 3 that binds and stiffens the pontoon assembly.
  • a single truss consists of two vertical telescopic supports 4 that end with adjustable stabilizers 5 supported on the bottom and connected using the angle connectors 6 to the horizontal element 7 in the form of a pipe, which binds the telescopic supports 4.
  • the trusses 3 are positioned so that the horizontal elements 7 are located above the bow bulkhead 8.
  • a generator set 9 with the capacity of 100 kVA/88 kW and weight of approx. 1,600 kg.
  • the compressor unit is used for abrasive blasting of a surface with the total output of approx. 18 m3/min., weight approx.
  • a combustion engine motor to propel the assembly
  • equal pressure units for abrasive blasting of surfaces a hydrodynamic unit for application of paint coats
  • a unit for pressure washing of surfaces a set of lamps
  • a tank with fuel for the generator sets, units, and possibly the propelling motor a battery station, a crew cabin, and navigation equipment.
  • the maximum haulage speed of the barge of the invention is 4.5 knots. Above this speed, the wave produced by the assembly (wave resistance) is too high and may hinder safe hauling. Moreover, there is a large total resistance constituting the sum of wave resistance and residual resistance, which can be overcome by increasing the power of the motors of the hauling set and by increasing the strength of the hauling rope.
  • the maximum haulage speed is also equal to the maximum speed of the current of the watercourse in which the assembly is used.
  • the minimum power of the motor needed for hauling the complete assembly is 77 hp.
  • the minimum number of anchors for the assembly is four, each with the minimum load carrying capacity of 250 kg.
  • An advantage of the floating assembly of the invention is its modular which makes it possible to disassemble the platform and to transport it to another body of water and its reassembly. Another advantage is the fact that the design of the invention makes it possible to perform repair projects that are cannot be performed from the ground due to the lack of access by heavy equipment.
  • the use of the barge of the invention does not generate social costs associated with shutdown of bridge structures to traffic.
  • What is also important is the economic aspect that consists in a reduction of costs of relocation of metalizing equipment, because water transport is cheaper than transport over land because it makes it possible to take the entire equipment on a single metallization station onboard of one unit, which is not possible when using standard road transport.
  • river barges are the most environment-friendly means of transport. River barges consume relatively the least fuel, generate the least noise, and require the smallest amount of land for the construction of new routes, requires the smallest amount of construction materials, such as railroad rails and asphalt or concrete surfaces, and causes the fewest hazards to the natural environment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Transportation (AREA)
  • Bridges Or Land Bridges (AREA)
EP16460010.8A 2016-02-25 2016-02-25 Platteforme flottante Withdrawn EP3210874A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16460010.8A EP3210874A1 (fr) 2016-02-25 2016-02-25 Platteforme flottante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16460010.8A EP3210874A1 (fr) 2016-02-25 2016-02-25 Platteforme flottante

Publications (1)

Publication Number Publication Date
EP3210874A1 true EP3210874A1 (fr) 2017-08-30

Family

ID=57233367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16460010.8A Withdrawn EP3210874A1 (fr) 2016-02-25 2016-02-25 Platteforme flottante

Country Status (1)

Country Link
EP (1) EP3210874A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441537A1 (fr) * 1978-11-16 1980-06-13 Leduc Michel Ponton susceptible de porter des engins de travail
JPH10167176A (ja) * 1996-12-13 1998-06-23 Toa Tekko Kk 杭や柱状構造物の補修用スパッド台船とその使用方法
US5775248A (en) 1996-12-18 1998-07-07 Simola; Charles H. Stabilized float drum
US6698371B1 (en) * 2002-10-28 2004-03-02 Harold A. Stoltzfus Boat with personnel elevator apparatus
US20040099192A1 (en) * 2002-11-26 2004-05-27 Joseph Mayers Sectional barge and methods of use
WO2009028935A2 (fr) 2007-08-28 2009-03-05 Klaas Jacob Wakker Bateau comprenant une partie gonflable qui est gonflée en fonction de l'utilisation du bateau
US20130087087A1 (en) * 2011-10-11 2013-04-11 Jonathan Adam Werbel Mobile floating deck barge with containment and waste water recycling system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441537A1 (fr) * 1978-11-16 1980-06-13 Leduc Michel Ponton susceptible de porter des engins de travail
JPH10167176A (ja) * 1996-12-13 1998-06-23 Toa Tekko Kk 杭や柱状構造物の補修用スパッド台船とその使用方法
US5775248A (en) 1996-12-18 1998-07-07 Simola; Charles H. Stabilized float drum
US6698371B1 (en) * 2002-10-28 2004-03-02 Harold A. Stoltzfus Boat with personnel elevator apparatus
US20040099192A1 (en) * 2002-11-26 2004-05-27 Joseph Mayers Sectional barge and methods of use
WO2009028935A2 (fr) 2007-08-28 2009-03-05 Klaas Jacob Wakker Bateau comprenant une partie gonflable qui est gonflée en fonction de l'utilisation du bateau
US20130087087A1 (en) * 2011-10-11 2013-04-11 Jonathan Adam Werbel Mobile floating deck barge with containment and waste water recycling system

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