WO2007011229A1 - Floating structure consisting of a number of assembled self-floating elements and method for constructing the floating structure - Google Patents

Floating structure consisting of a number of assembled self-floating elements and method for constructing the floating structure Download PDF

Info

Publication number
WO2007011229A1
WO2007011229A1 PCT/NO2006/000224 NO2006000224W WO2007011229A1 WO 2007011229 A1 WO2007011229 A1 WO 2007011229A1 NO 2006000224 W NO2006000224 W NO 2006000224W WO 2007011229 A1 WO2007011229 A1 WO 2007011229A1
Authority
WO
WIPO (PCT)
Prior art keywords
element
floating
provided
floating structure
sidewalls
Prior art date
Application number
PCT/NO2006/000224
Other languages
French (fr)
Inventor
Trond LANDBØ
Original Assignee
Dr. Techn. Olav Olsen As
Libæk & Associates A/S
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
Priority to NO20052942A priority Critical patent/NO330250B1/en
Priority to NO20052942 priority
Application filed by Dr. Techn. Olav Olsen As, Libæk & Associates A/S filed Critical Dr. Techn. Olav Olsen As
Publication of WO2007011229A1 publication Critical patent/WO2007011229A1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06Moles; Piers; Quay walls; Groynes; Breakwaters Wave dissipating walls; Quay equipment
    • E02B3/062Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
    • E02B3/064Floating landing-stages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
    • B63B35/00Vessels or like floating structures adapted for special purposes
    • B63B35/34Pontoons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
    • B63B5/00Hulls characterised by their construction of non-metallic material
    • B63B5/14Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced
    • B63B5/18Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced built-up from elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
    • B63B5/00Hulls characterised by their construction of non-metallic material
    • B63B5/14Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced
    • B63B5/18Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced built-up from elements
    • B63B5/20Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced built-up from elements in combination with elements of other materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63CLAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C1/00Dry-docking of vessels or flying-boats
    • B63C1/02Floating docks

Abstract

Floating structure (1) consisting of a number of assembled self floating elements (2, 3), preferably of steel. Each floating element (2, 3) in its lower area for assembling with another element (2, 3) is provided with a double bottom (5) and double sidewalls (7) extending a distance inwards the element (2, 3). Pipe channels (17) are provided in parallel and with mutual distance within the cavity (9) of the double bottom and the sidewalls and extending from the inner termination surface (10) of the cavity and perpendicular to its outer termination (11) i.e. coupling surface with another element. The cavity (9) within the double bottom and the sidewalls and outside the pipe channels (17) is filled with a material tolerating pressure, preferably concrete (20). Tension cables or bolts et (21) are provided within the pipe channel (17) and extending from the inner termination surface (10) of the element to corresponding internal termination surface (10) of the second element whereby the pipe channels (17) after assembling and tensioning of tension cables etc. (21) are filled with injected concrete (23).

Description

Floating structure consisting of a number of assembled self-floating elements and method for constructing the floating structure.

The present invention concerns a floating structure consisting of a number of assembled self floating elements and method for constructing the floating structure.

More specifically the invention concerns an assembly of a floating structure for example a larger dock for maintenance of oil tankers for example. The floating structure is constructed by a number of self-floating elements which are assembled while floating.

The self floating elements and the method for fabricating the floating structure are adapted to be utilized in connection with limited water depth and fabrication facilities with limited space, which requires that the structure must be light and assembled of elements requiring small draft. The element assembly must be carried out in the water in floating condition. Further, it must be a safe and strong connection between the elements taking care of the global bending and shear forces that can arise during use.

Due to the limitation with regard to water depth and fabrication facility, such structure will not be constructed by concrete elements which will require a larger water depth.

A corresponding structure of steel will normally require subsea welding. One of the objects of the present invention is to eliminate subsea welding and thereby reduce the cost and fabrication time.

Further, it is an object of the present invention that the single elements can be constructed in a dimension which permits that they can be transported on channels and rivers, and than could be assembled in a area of the sea with very limited draft.

The objects of the present invention is achieved by a floating structure consisting of a number of assembled self floating elements, preferably made by steel, characterized in that each floating element has a double floor and double sidewalls at each end to be connected to another element, extending a distance inwards the element and closed by an internal bulkhead. Parallel duct channels are routed within the double floor and double outer walls, extending from the end of the element, i.e. coupling surface with another element, to the internal bulkhead.

The space within the double bottom and the double sidewalls, outside the duct channels, is filled with a material tolerating pressure, preferably concrete.

After connecting two elements tension cables or bolts are provided within the duct channels of two adjacent elements in order to fix the connection between the elements, whereby the duct channels after assembly and tensioning of tension cables etc. are filled with injected concrete. Preferred embodiments of the floating structure are further stated in the claims 2-9.

The objectives of the present invention is further achieved by a method for assembling a floating structure consisting of a number of assembled self floating elements, preferably of steel, wherein each floating element is in its lower area for assembling with another element is provided with a double bottom and double sidewalls extending a distance inwards the element, pipe channels are provided in parallel and with mutual distance within the cavity of the double bottom and the sidewalls and extending from the inner termination surface of the cavity and perpendicular to its outer termination, i.e. coupling surface with another element, the floating element in its lower ends and on the outer walls in its couplings area with another element provided with hook devices for receiving complementary bolt devices provided on the other element, characterized in that a first floating element is deballasted with even keel, a second floating element is trimmed, deballasted at its bolt device coupling end, the hook device coupling end of the second floating element is pulled towards the bolt device-coupling end of the first floating element whereby the hook- and bolt devices are connected in that the second element is deballasted down to stable contact between the elements is achieved, the second element is deballasted until the first and second elements upper part/top plates are brought together whereafter the top plates are connected, preferably by welding, the second element is deballasted again whereby pressure is applied on a gasket in the lower assembling (connecting) area for the elements, lid which closes the pipe channels in the lower connecting area of the first and the second floating element is removed and tension cables, bolts etc. are installed in the pipe channels, and every cavity between the first and the second element is injected with concrete whereafter the tension cables, bolts etc. are tighten up and concrete is injected in the pipe channels.

The present invention will be further explained with reference to the attached drawings, wherein:

Fig. 1 shows a floating structure, seen from the cross end, according to the present invention,

Fig. 2 shows the floating structure in the length wise direction consisting of seven assembled self floating elements,

Fig. 3 shows one of the elements in figure 2,

Fig. 4 shows a detail of the element's coupling face with another element, Fig. 5 shows a detail of the elements assembling area,

Fig. 6 shows a corresponding detail of another element which is designed for assembling with the element in figure 5,

Fig. 7 shows a detail of a hook- and bolt device for assembling two self floating elements, Fig. 8 is a perspective drawing which particularly shows the coupling face of an element,

Fig. 9 is a detail drawing showing the coupling face to another element, which is meant to be coupled to the element in fig. 8,

Fig. 10 is a perspective drawing showing an end element in a first floating structure part, and

Fig. 11 is a perspective drawing showing a complementary end element of another floating structure part, which is meant to be coupled to the first floating structure main part with an articulated coupling for a flexible way to utilize each main part alone or together. With reference to fig. 1 a cross end of a floating structure 1 or one of a self floating element's 2 external termination i.e. coupling face 11 with another element is shown. As evident from the figure the floating element 2 is in its lower area for assembling with another element 3 provided with a double bottom 5 and double sidewalls 7, extending a distance, for example 2-3 meter, inwards the element from each end. A cavity 9 which is build up by double steel plates is then created and the cavity 9 is in this embodiment filled with concrete 20. In order to achieve adherence between the concrete 20 and steel shear ribs 22 are welded on the inside of the steel plates as shown for example in fig. 4 and 5. Pipe channels 17 of steel, extending from the inner termination surface 10 of the cavity and perpendicular to its external termination/coupling face 11 , is casted in the concrete 20 with end lids 18 for temporary closing of the pipe channels 17. As shown at fig. 4 and 9 the concrete end surface, i.e. the coupling face with another element has a recess 12 for mounting of a gasket 13 along the entire bottom 5 as well as up along the outer sidewalls 7.

With the object to steer (guide) and connect the self floating element 2, 3 hook devices 24 and bolt devices 26 are provided on the lower ends of each element's 2, 3 outer wall 8, as shown for example at fig. 8 and 9.

With reference to fig. 5 an element is shown with a vertical extending recess 14 along the two sidewalls of the element in the coupling area for receiving a complementary elevation 15 on another element shown at figure 6. Fig. 10 shows a self floating element which in this embodiment is an end element in a first floating structure part 29 and which further in its first end is provided with a flexible hinge coupling 30 in the form of a number of brackets 32 with bolt openings 32 provided on the coupling surface of the bottom for receiving a complementary horizontal displaceable bolt structure 36 with bolt 37 provided on a complementary end element to another floating structure main part 35 shown in fig. 11.

Fig. 10 depicts a self floating element which in this embodiment is an end element in a first floating structure part 29 and which further in its one end is provided with a flexible hinge coupling 30 in the form of a number of brackets 32 with bolt openings 33 provided on the coupling surface of the bottom for receiving a complementary horizontal displaceable bolt structure 36 provided on a complementary end element of the second floating structure main part 35 shown in fig. 11.

The invention shall now be further explained in connection with a method for assembling the floating structure 1 according to the invention. A first self floating element 2 is transported to an assembling site where it is deballasted with even keel . A second self floating element 3 is transported close to the first element 2 and trimmed, deballasted at its coupling end which is provided with bolt devices 26. The elements 3 opposite the coupling end which is provided with hook devices 24 is pulled towards the bolt device end of the element 2. The hook devices 24 are then coupled together with the bolt devices 26 as the element 2 is deballasted. When fixed contact is established the bolt end of the element 3 will be deballasted in order to bring the top plates 6 of the element 2 and element 3 together whereafter these are welded together in order to achieve a fixed connection. After the top plates 6 are connected the element 3 is deballasted again in order to apply pressure on the gasket 13. Lids 18 which close the pipe channels can now be opened and short tension cables (or tension bolts) 21 can now be installed. Each cavity between the elements 2, 3 are injected with concrete prior to post-tensioning of the tension cables 21 in order to ensure full strength through the bottom section of the floating structure 1. After the tension cables 21 are tensioned the pipe channels are injected with concrete 23.

Claims

claim
1. Floating structure (1 ) consisting of a number of assembled self floating elements (2, 3) of steel, character ized in that each floating element (2, 3) in its lower area for assembling with another element (2, 3) is provided with a double bottom (5) and double sidewalls (7) extending a distance inwards the element (2, 3), pipe channels (17) are provided in parallel and with mutual distance within the cavity (9) of the double bottom and the sidewalls and extending from the inner termination surface (10) of the cavity and perpendicular to its outer termination (11) i.e. coupling surface with another element, the cavity (9) within the double bottom and the sidewalls and outside the pipe channels (17) is filled with a material tolerating pressure, preferably concrete (20), tension cables or bolts etc. (21) are provided within the pipe channel (17) and extending from the inner termination surface (10) of the element to corresponding internal termination surface (10) of the second element whereby the pipe channels (17) after assembling and tensioning of tension cables etc. (21) are filled with injected concrete (23).
2. Floating structure (1) according to claim 1 , characterized in that the internal surfaces within the cavity (9) of the self floating element are provided with shear ribs for cooperation steel/concrete.
3. Floating structure according to claim 1 or 2, characterized in that the pipe channels (17) in both ends are provided with temporary lids (18) in order to secure water proofness for assembling.
4. Floating structure (1) according to claim 1 , 2 or 3, characterized in that the floating element's outer coupling surface (11) with another element is provided with a recess (12) along bottom plate and sidewalls, in the outer part of the cross section.
5. Floating structure according to claim 4, characterized in that the recess (12) is provided with a gasket (13).
6. Floating structure (1) according to claim 5, characterized in that the gasket (13) is a expansion sealing.
7. Floating structure (1) according to anyone of the preceding claims, characterized in that the floating element's coupling surface with another element is provided with a vertically extending recess (14) along the two sidewalls for receiving a complementary elevation (15) on the other element.
8. Floating structure (1) according to anyone of the preceding claims, characterized in that the floating element in its lower ends and on the outer walls (8) in its coupling area with another element is provided with hook devices (24) for receiving complementary bolt devices (26) provided on the other element.
9. Floating structure (1) according to anyone of the preceding claims, characterized in that the floating element is an end element in a first floating structure part (29) and is in its first end provided with a flexible hinge coupling (30) in the form of a number of brackets (32) provided on the bottom's coupling surface having bolt openings (33) for receiving a complementary horizontal displaceable bolt structure (36) on a complementary end element of another floating structure main part (35).
10. Method for assembling a floating structure (1) consisting of a number of assembled self floating elements (2, 3), preferably of steel, wherein each floating element is in its lower area for assembling with another element is provided with a double bottom (5) and double sidewalls (7) extending a distance inwards the element, pipe channels (17) are provided in parallel and with mutual distance within the cavity (9) of the double bottom and the sidewalls and extending from the inner termination surface (10) of the cavity and perpendicular to its outer termination (11), i.e. coupling surface with another element, the floating element in its lower ends and on the outer walls in its couplings area with another element provided with hook devices (24) for receiving complementary bolt devices (26) provided on the other element, c h a r a c t e r i z e d i n that a first floating element (2) is deballasted with even keel, a second (3) floating element is trimmed, deballasted at its bolt device coupling end, the hook device coupling end of the second floating element is pulled towards the bolt device-coupling end of the first floating element whereby the hook- and bolt devices (24, 26) are connected in that the second element (3) is deballasted down to stable contact between the elements (2, 3) is achieved, the second element is deballasted until the first and second elements upper part/top plates (6) are brought together whereafter the top plates (6) are connected, preferably by welding, the second element (3) is deballasted again whereby pressure is applied on a gasket (13) in the lower assembling (connecting) area for the elements (2, 3), lid (18) which closes the pipe channels (17) in the lower connecting area of the first and the second floating element (2, 3) is removed and tension cables, bolts etc. (21) are installed in the pipe channels (17), and every cavity between the first and the second element (2, 3) is injected with concrete whereafter the tension cables, bolts etc. (21) are tighten up and concrete is injected (23) in the pipe channels (17).
PCT/NO2006/000224 2005-06-16 2006-06-13 Floating structure consisting of a number of assembled self-floating elements and method for constructing the floating structure WO2007011229A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO20052942A NO330250B1 (en) 2005-06-16 2005-06-16 Floating construction comprising a plurality of composite self-floating elements of steel and process feed for the construction of floating structure
NO20052942 2005-06-16

Publications (1)

Publication Number Publication Date
WO2007011229A1 true WO2007011229A1 (en) 2007-01-25

Family

ID=35295097

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2006/000224 WO2007011229A1 (en) 2005-06-16 2006-06-13 Floating structure consisting of a number of assembled self-floating elements and method for constructing the floating structure

Country Status (3)

Country Link
NO (1) NO330250B1 (en)
RU (1) RU2388647C2 (en)
WO (1) WO2007011229A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113442A2 (en) * 2007-03-20 2008-09-25 Universität Duisburg-Essen Floating pontoon of an offshore container transfer station
WO2013041231A1 (en) * 2011-09-23 2013-03-28 Krecke Edmond Floating energy-autonomous platforms, and method for the production thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2686548C1 (en) * 2017-12-06 2019-04-29 Общество с ограниченной ответственностью "Редиус 168" Structural element of said watercraft

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788254A (en) * 1971-12-28 1974-01-29 J Sheil Floating platform
US3977344A (en) * 1974-10-07 1976-08-31 John George Holford Floatable concrete structures
US4487151A (en) * 1982-05-14 1984-12-11 Salvatore Deiana Floating highway
US5044296A (en) * 1988-04-28 1991-09-03 Finn Arnold A Modular floating structures and methods for making
US5192161A (en) * 1990-05-30 1993-03-09 Ulf Helgesson Floating structure for use as a breakwater
JPH07323884A (en) * 1994-05-31 1995-12-12 Nippon Steel Corp Floating structure and its construction
US20050103250A1 (en) * 2003-10-31 2005-05-19 Thomson Howard M. Corrosion resistant prestressed concrete float system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788254A (en) * 1971-12-28 1974-01-29 J Sheil Floating platform
US3977344A (en) * 1974-10-07 1976-08-31 John George Holford Floatable concrete structures
US4487151A (en) * 1982-05-14 1984-12-11 Salvatore Deiana Floating highway
US5044296A (en) * 1988-04-28 1991-09-03 Finn Arnold A Modular floating structures and methods for making
US5192161A (en) * 1990-05-30 1993-03-09 Ulf Helgesson Floating structure for use as a breakwater
JPH07323884A (en) * 1994-05-31 1995-12-12 Nippon Steel Corp Floating structure and its construction
US20050103250A1 (en) * 2003-10-31 2005-05-19 Thomson Howard M. Corrosion resistant prestressed concrete float system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113442A2 (en) * 2007-03-20 2008-09-25 Universität Duisburg-Essen Floating pontoon of an offshore container transfer station
WO2008113442A3 (en) * 2007-03-20 2008-11-06 Moustafa Abdel-Maksoud Floating pontoon of an offshore container transfer station
WO2013041231A1 (en) * 2011-09-23 2013-03-28 Krecke Edmond Floating energy-autonomous platforms, and method for the production thereof

Also Published As

Publication number Publication date
NO20052942D0 (en) 2005-06-16
NO20052942L (en) 2006-12-18
NO330250B1 (en) 2011-03-14
RU2388647C2 (en) 2010-05-10
RU2008101677A (en) 2009-07-27

Similar Documents

Publication Publication Date Title
US7155874B2 (en) Tubular structure and modular building assembly using the same
CN102859189B (en) Wind energy plants and wind power installation pylon segment
US6773206B2 (en) Support pile repair jacket form
US6364575B1 (en) Underwater pile repair jacket form
US6161342A (en) Prefabricated concrete element for building a civil engineering structure having an arched wall
US4365577A (en) Float module combination
US7607864B2 (en) Buoyant building foundation
ES2433275T3 (en) Structural members of improved interleaved plates
FR2521095A1 (en) Work case for sea facilities
US4735234A (en) Buried large cross-section conduit
KR101151091B1 (en) Auxiliary float of floating structure and method for remodeling floating structure
EP0104027B1 (en) Sectional storage tanks
US20020067957A1 (en) Floating concrete dock sections and methods for making the same
US6834890B2 (en) Coupler apparatus for use with a tendon-receiving duct in a segmental precast concrete structure
US4110994A (en) Marine pipeline
US5713296A (en) Lightweight concrete dock
WO2002066760A1 (en) Tubular structure and modular building assembly using the same
WO2002031317A1 (en) Composite segment
KR101630235B1 (en) Precast truss wall structure and construction method of underground structure using thereof
WO2001004454A1 (en) Device connecting the sea floor with the surface comprising a submarine pipeline attached to at least one floater
US20090283025A1 (en) Floating dock structure
KR20040053764A (en) Sheeting timbering
CA2176074C (en) Flumes for manhole inverts
US20100313518A1 (en) Joining device
ES2270076T3 (en) Shipbuilding very high tonnage.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase in:

Ref country code: DE

ENP Entry into the national phase in:

Ref document number: 2008101677

Country of ref document: RU

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2008101677

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 06757868

Country of ref document: EP

Kind code of ref document: A1