KR101618797B1 - A auxilliary lifting device of marine concrete strucyures and a lifting methode using lifting equipment - Google Patents

A auxilliary lifting device of marine concrete strucyures and a lifting methode using lifting equipment Download PDF

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Publication number
KR101618797B1
KR101618797B1 KR1020150179429A KR20150179429A KR101618797B1 KR 101618797 B1 KR101618797 B1 KR 101618797B1 KR 1020150179429 A KR1020150179429 A KR 1020150179429A KR 20150179429 A KR20150179429 A KR 20150179429A KR 101618797 B1 KR101618797 B1 KR 101618797B1
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KR
South Korea
Prior art keywords
fixing
concrete structure
lifting
fixed
groove
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KR1020150179429A
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Korean (ko)
Inventor
박상술
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유한회사 박상술
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/666—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures

Abstract

The present invention relates to an auxiliary lifting device of a marine concrete structure, which is coupled to a marine concrete structure installed on the sea and connected to a lifting device to perform lifting work of the marine concrete structure, so as to quickly and stably perform lifting work when lifting and installing a concrete structure, or collecting the concrete structure to be reused. The auxiliary lifting device of a marine concrete structure comprises: a fixing pipe; a support inserted into the fixing pipe; a fixing sleeve inserted between the support and an internal side of the fixing pipe; and an anchor nut screwed to a screw rod of the support.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a marine concrete structure lifting assistance device and a marine concrete structure lifting method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting assistance device which is fastened to a concrete structure by being fastened to a lifting device such as a crane when lifting a structure such as a concrete block installed in the sea, A supporting structure of a marine concrete structure that can be quickly and reliably lifted when a concrete structure such as a concrete block constituting the foundation of an offshore structure such as a concrete structure is lifted and installed for recycling or to be recycled, .

Generally, when building marine facilities such as marinas, harbors, docks, and the like, it is necessary to perform basic facilities. In the basic equipment, a concrete structure composed of a unit block made of a concrete material is lifted to the sea, And then the uppermost portion is finished.

Here, the concrete structure is mainly in the form of a hexahedron, and one side may be inclined.

That is, a unit block having a rectangular parallelepiped shape and a unit block having a sloped surface on one side are generally stacked in a block stacking manner.

And, when repairing and rehabilitating the marine facilities, the concrete structure is taken out from the ocean and collected. It is disassembled and discarded or recycled through a separate process.

When the marine concrete structure is to be dismantled and collected for disposal or recycling, a wire and a hook connected to the lifting device are lifted by using a lifting device such as a separate crane device capable of lifting a heavy object, And then a lifting work is carried out.

As described above, devices and methods that are connected to a structure installed and disposed in the ocean using a wire of a crane device are widely proposed and utilized. One of them is Korean Patent Laid-Open Publication No. 10-2012-61707 (Referred to as a heavy lifting lug). As known in the art, a lug is fixed to the support metal by integrally assembling a support metal to which a lug is fitted to the structure, and a lifting wire is connected to the lug The lugs are described.

On the other hand, in Korean Patent Registration No. 10-1261859 (name: a breaker device and a lifting method of a ship using the same), a through hole is formed in a breaker means as is known in the art, And a lifting method in which hooks provided are hooked and connected and lifted up.

In addition, Korean Patent Registration No. 10-1295412 (name: asphalt mat for lifting friction using lift plate) discloses a connection plate embedded in a structure and having a nut groove formed therein, There is disclosed a lifting method in which a screw having a ring is fastened to a nut groove of a plate, and a lifting wire is connected to the ring to lift the lifting wire.

In addition, in Korean Patent Registration No. 10-1190725 (name: a buoy for a buoy, which is easy to install and use), a lifting method in which a structure is provided with a latch, and a lifting wire is connected to the latch when lifting, .

1, Korean Patent Publication No. 10-2012-61707 2, Korean Patent Registration No. 10-1261859 3, Korean Patent Registration No. 10-1295412 4, Korean Patent Registration No. 10-1190725

However, the conventional lifting apparatuses and methods as described above have a problem in that they can not be applied to lifting concrete structures flooded in the ocean.

That is, although the work of lifting the concrete structure upward by buoyancy in the water is smoothly performed, the peripheral part of the part connected to the lifting device is damaged after the lifting to the outside of the water, .

This is because, as the surface of the concrete structure is corroded by the seawater and its strength is weakened, the peripheral portion of the portion connected to the lifting device is damaged by the load applied at the moment of being lifted by the water in the water, There is a problem that frequent disassembly occurs.

As a result, there has been a problem that a safety accident occurs due to falling of a concrete structure being lifted.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a concrete structure such as a concrete block constituting the foundation of an offshore structure such as a quay, a breakwater, And to provide a lifting assisting device for a marine concrete structure and a lifting method using the same, which can perform a lifting operation quickly and stably when collected for recycling.

In order to accomplish the object of the present invention, the present invention provides a lifting assistance device for a marine concrete structure, which is coupled to a marine concrete structure installed in the ocean and is connected to a lifting device for lifting the marine concrete structure. A lifting assistance device for a concrete structure, comprising: A fixing pipe which is formed by a sloping surface having a flat inner surface and an inner surface formed with an opening at an upper end thereof and which is fixed in a state embedded in the concrete structure and an inclined surface inserted into the fixing pipe, Shaped rod-shaped support having a threaded rod with a threaded protrusion formed thereon, and a plurality of discrete pieces formed at the lower portion of the rod-shaped fixing pipe so that the outer diameter and inner diameter of the lower portion are elongated and expanded And an anchor nut screwed to the screw thread of the strut and having an upper end formed with a ring to which a connection part of the lifting device is fastened; Wherein the maximum diameter of the strut is smaller than a minimum inner diameter of the fixing pipe; Wherein an outer diameter of the fixing sleeve is smaller than a minimum inner diameter of the fixing tube, and the inner diameter of the fixing sleeve is larger than a minimum diameter of an upper end of the support, and the thickness of the fixing sleeve is a minimum A length greater than an interval between the inner diameter and the maximum inner diameter of the support; An insertion groove having a length in a direction from an upper end to a lower end is formed on an inner surface of the fixing pipe; A fixing groove extending in the horizontal direction in the insertion groove is provided at a position spaced apart from the inner side of the fixing tube; And a fixing protrusion is formed on the outer circumferential surface of the fixing sleeve so as to fit into the insertion groove and the fixing groove.

And a fastening protrusion formed on the outer circumferential surface of the fastening protrusion for fitting into the insertion groove and the fastening groove is fastened to the upper end opening of the fastening pipe.

The fixing sleeve may further include an up-and-down member having a coupling groove formed at a lower side thereof and a coupling protrusion coupled to the coupling groove at a bottom surface thereof and having a knob at an upper portion thereof.

In order to accomplish the object of the present invention, the method for lifting a marine concrete structure of the present invention as described above is a method for lifting a marine concrete structure, which is connected to a marine concrete structure installed in the ocean, A method of lifting a marine concrete structure to which a lifting assistance device of a structure is applied; Wherein an insertion groove having a length in a direction from an upper end to a lower end is formed on an inner side surface thereof and an insertion groove formed in an inner side of the fixing pipe at a position having an interval therebetween, A molding step of a concrete structure embedded in a fixed pipe to form a marine concrete structure by curing the concrete in a state where a fixed pipe having a fixing groove formed in the insertion groove is horizontally extended; A strut applying step of inserting and accommodating a rod-shaped strut having an inclined surface whose outer circumferential surface is internally formed into the fixed pipe and having a threaded rod extending upwardly and having a screw protrusion on an outer circumferential surface thereof; A fixing sleeve having an outer diameter and an inner diameter elongated and expanded and formed on an outer circumferential surface thereof and having a fixing protrusion fitted to the insertion groove and the fixing groove so as to fit into the fixing groove, A fixing sleeve accommodating step of accommodating and accommodating the fixing sleeve; The fixing sleeve may be lifted up to a position where the fixing sleeve is brought into close contact with the inner surface of the fixing tube so that the fixing sleeve is brought into close contact with the inner surface of the fixing tube, A fixing sleeve lifting step for lifting the inner surface of the fixing tube in a state that the fixing sleeve is lifted; A fixing sleeve rotation fixing step of rotating the lifting member to fix the fixing protrusion of the fixing sleeve into the fixing groove of the fixing tube so that the fixing sleeve is prevented from being unintentionally separated from the fixing tube; And an anchor nut having a hook formed in the upper end of the anchor nut to be screwed to the screw thread of the strut when the fixing sleeve is fixed to the fixed tube through the fixed fixing step, Anchor nut fixing step for fixing the anchor nut; A step of lifting the concrete structure after connecting the connecting part of the lifting device to the anchor nut when the anchor nut is fixed to the concrete structure through the anchor cut fixing step; And a stopper securing step of securing and coupling a stopper formed on the outer circumferential surface of the upper end of the fixing pipe of the concrete structure lifted through the lifting step to fit the insertion groove and the fixing groove into the fastener protrusion .

The present invention provides a method for lifting a marine concrete structure of a marine concrete structure and a lifting method using the marine concrete structure of the present invention. When lifting a block-shaped marine concrete structure constructed of marine facilities such as a quay, a breakwater, And the anchor nut connected to the concrete structure has a high bonding force with the concrete structure.

In addition, through the fixed pipe embedded in the marine concrete structure, the lifting work such as re-installation and re-collection can be reused and re-used whenever necessary, so that the re-lifting operation can be performed quickly and stably.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a lifting auxiliary device for a marine concrete structure according to an embodiment of the present invention; FIG.
Fig. 2 is an exploded schematic cross-sectional view showing a lifting auxiliary device of a marine concrete structure according to the present embodiment; Fig.
3 to 5 are schematic views showing a fixing pipe applied to a lifting auxiliary device of a marine concrete structure according to the present embodiment.
FIG. 6 is a schematic view showing a state where a fixing pipe applied to a lifting auxiliary device of a marine concrete structure according to the present embodiment is coupled to a concrete structure. FIG.
FIG. 7 is a schematic view showing a method of lifting a marine concrete structure according to an embodiment of the present invention; FIG.
8 to 15 are schematic views showing a method of lifting a marine concrete structure according to the present embodiment.
16 is a schematic view showing another example of a fixing pipe applied to a lifting auxiliary device of a marine concrete structure according to an embodiment of the present invention.

Hereinafter, a method of lifting a marine concrete structure according to a preferred embodiment of the present invention and a lifting method using the same will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 to 6 are views showing a lifting assistance device for a marine concrete structure according to an embodiment of the present invention. In this embodiment, a lifting assistance device 1 includes a concrete structure 2 constituting marine facilities, (Not shown), and then lifting the concrete structure 2 by driving the lifting device to lift the concrete structure 2 to the sea to construct a marine facility Or to extract the concrete structure 2 installed in the ocean to the outside and then to dismantle or recycle the same.

That is, in the present embodiment, the lifting assistance device 1 is particularly suitable for carrying out lifting work of the marine concrete structure 2 by being coupled to a marine concrete structure 2 installed on the ocean and connected to a separate lifting device Lt; / RTI >

In this embodiment, the lifting assistance device 1 has a fixing pipe 3, which has an inclined surface whose inner side faces each other and which is fixed in a state embedded in the concrete structure 2, .

That is, the fixing pipe 3 is buried in the concrete structure 2 with the top opening exposed to the outside and is cured in a state of being located inside the concrete structure 2, and is integrally manufactured and joined.

The outer circumferential surface of the fixing pipe 3 is formed in a shape of a vertically narrow beam so that the outer diameter of the fixing pipe 3 gradually increases toward the inside of the concrete structure 2. Accordingly, It is most preferable to reinforce the supporting force against the applied load.

An insertion groove 31 having a length in a direction from the upper end to a lower end is formed in the inner side surface of the fixing pipe 3 and a groove 31 is formed at a position spaced apart from the inner side of the fixing pipe 3 And a fixing groove 32 extending in the horizontal direction.

In addition, the fixing pipe 3 is preferably made of a metal material, and is most preferably made of stainless steel to prevent corrosion by seawater.

In addition, the inner surface of the fixing pipe 3 may have a double structure in which a coating layer made of a synthetic resin material is applied to prevent corrosion by seawater, and it is most preferable to apply the inner surface of the fixing pipe 3 according to the user's choice .

16, auxiliary core members 33 connected to core members 21 provided in the concrete structure 2 are preferably provided on the outer circumferential surface of the fixing pipe 3, Accordingly, it is most preferable that the coupling force between the fixing pipe 3 and the concrete structure 2 is further increased.

The lifting assistance device 1 according to the present embodiment has a screw rod 41 inserted into the fixing tube 3 and having an inclined surface with an outer circumferential surface and having a screw protrusion formed on the outer circumferential surface, Shaped " rod-shaped &

The strut 4 is preferably made of a metal rod, and it is most preferable that the threaded rod 41 and the lower part of the lower mold are integrally manufactured.

The lifting assistance device 1 according to the present embodiment is fitted between the supporting pillars 4 and the inner surface of the fixing pipe 3 and has a plurality of separating pieces 51 formed therebelow, And has a fixing sleeve 5 whose inner diameter is elongated and stretchable.

That is, the fixing sleeve 5 is disposed between the strut 4 and the fixed tube 3, and is fitted into the fixed tube 3 so as to be in close contact with the outside of the strut 4 and the fixed tube 3, So that the struts 4 are prevented from being separated unauthorizedly.

A fixing protrusion 52 is formed on an outer circumferential surface of the fixing sleeve 5 so as to fit into the insertion groove 31 and the fixing groove 32.

Thus, when the fixing sleeve 5 enters into the fixing pipe 3, the fixing protrusion 52 stably enters the fixing pipe 3 through the insertion groove 31 , The fixing sleeve 5 is rotated inside the fixing tube 3 so that the fixing protrusion 52 is inserted and fixed in the fixing groove 32 to thereby prevent unauthorized separation.

Therefore, even if the fixing sleeve 5 is applied with the rising pressure, the fixing sleeve 3 can be stably fixed to the fixing tube 3 without being separated from the fixing tube 3 without being separated.

On the other hand, on the upper end of the fixing sleeve 5, there is formed a coupling groove 53 formed downward, a coupling protrusion 82 coupled to the coupling groove 53 on the bottom surface, and a knob 81 And further has a lifting member 8.

That is, after the lifting member 8 is fastened to the fixing sleeve 5, the fixing sleeve 5 is lifted upward, and the fixing sleeve 5 is brought into close contact with the inner surface of the fixing tube 3 The fixing projections 52 of the fixing sleeve 5 are inserted into the fixing grooves 32 of the fixing pipe 3 by rotating the elevating member 8 so that the fixing projections 52 are inserted into the fixing grooves 32 of the fixing tube 3, So that the fixing sleeve 5 is fixed so as not to be separated from the fixing tube 3 in an unauthorized manner.

Of course, when separating the fixing sleeve 5 from the fixing tube 3, after the elevating member 8 is fastened to the fixing sleeve 5, the fixing tube 3 is applied in the reverse order, The fixing sleeve 5 may be separated from the fixing sleeve 5.

The lifting assistance device 1 according to the present embodiment includes an anchor nut 6 having a hook 61 screwed to the threaded rod 41 of the strut 4 and fastened to a connecting portion of the lifting device, .

That is, the anchor nut 6 is engaged with the upper end of the strut 4 in a state where the anchor nut 6 is coupled through the fixing sleeve 5 so that the strut 4 is not separated from the fixed tube 3, And a connecting portion of a separate lifting device is fastened to the ring 61 of the anchor nut 6 to perform a lifting operation.

It is preferable that the maximum diameter of the strut 4 is smaller than the minimum inner diameter of the fixing tube 3 and the outer diameter of the fixing sleeve 5 is smaller than the minimum inner diameter of the fixing tube 3 .

The fixing sleeve 5 is inserted into the fixing pipe 3 in a state in which the pillars 4 are easily inserted into the fixing pipe 3.

The inner diameter of the fixing sleeve 5 is made larger than the minimum diameter of the upper end of the strut 4 and the thickness of the fixing sleeve 5 is larger than the minimum inner diameter of the fixing tube 3, The fixing sleeve 5 is inserted into the fixing pipe 3 in a state in which the strut 4 is positioned inside the fixing pipe 4, And when the distance between the outer circumferential surface of the strut 4 and the inner circumferential surface of the fixing tube 3 becomes narrower as the strut 4 ascends inside the fixing tube 3, 5 are tightly fitted to the outside of the strut 4 and the inside of the fixing pipe 3, respectively.

Thus, each time the elevation pressure of the column 4 increases, the connection between the column 4 and the fixing pipe 3 becomes more firm.

Therefore, when the anchor nut 6 is lifted through a separate lifting device in a state where the anchor nut 6 is coupled to the screw rod 41, So that it is prevented from being separated unauthorizedly and the lifting work is performed with stability.

The lifting assistance device 1 according to the present embodiment is provided with a fastening protrusion 71 for fitting the insertion groove 31 and the fastening groove 32 into engagement with each other, And a stopper member 7 which is fastened to the top opening.

That is, when the lifting of the concrete structure 2 is completed, the stopper member 7 is fitted into the opening of the fixing pipe 3 to close the inside of the fixing pipe 3, To prevent damage.

The stopper member 7 rotates in a state where the fastening protrusion 71 is inserted into the fixing groove 3 through the insertion groove 31 so that the fastening protrusion 71 is inserted into the fastening groove 32, So that the stopper member 7 is prevented from being separated from the fixed pipe 3 without any restriction.

Hereinafter, a method for lifting a marine concrete structure will be described in detail by applying the above-described lifting assistance device 1 of a marine concrete structure according to the present embodiment.

As shown in FIGS. 7 to 15, the lifting method according to the present embodiment includes the steps of forming the concrete structure 2 by curing the concrete in the state where the fixed pipe 3 is buried, (S100).

That is, during the manufacturing of the concrete structure 2, the fixing pipe 2 is integrally joined and molded through the molding step S100 of the fixed pipe embedded concrete structure.

Accordingly, the fixing pipe 3 and the concrete structure 2 can be coupled without a separate apparatus and process, thereby simplifying the process.

As shown in FIGS. 8 and 9, the strut 4 has a strut applying step S200 in which the strut 4 is inserted into the fixed tube 3 and accommodated therein.

In addition, when the struts 4 are accommodated and disposed in the fixed tube 3 through the strut applying step S200, the fixing sleeve 5 is inserted into the struts 4 as shown in Fig. 10, (S300), which is inserted between the inner surface of the fixed tube (3) and the inner surface of the fixed tube (3).

That is, the fixing sleeve 5 is accommodated in the fixing tube 3 so that the fixing tube 3 and the struts 4 are disposed outside and inside the fixing sleeve 5, respectively.

11, the elevating member 8 is fastened to the upper end of the fixing sleeve 5 in a state where the fixing sleeve 5 is disposed in the fixing pipe 3, Up step S400 of raising the sleeve 5 upward to raise the fixing sleeve 5 from the inner side of the fixing tube 3 while closely contacting the inner surface of the fixing tube 3; , The elevating member 8 is rotated so that the fixing protrusion 52 of the fixing sleeve 5 is inserted into the fixing groove 32 of the fixing tube 3 so that the fixing sleeve 5 is fixed to the fixing tube 3 And fixing the rotation of the fixing sleeve (S500).

The fixing sleeve 5 is firmly fixed to the fixing tube 3 so that the fixing sleeve 5 can be stably fixed to the fixing tube 3 without being torn off from the fixing tube 3, In a fixed state.

When the fixing sleeve 5 is fixed to the fixing pipe 3 through the fixing step S 500 of the fixing sleeve, the anchor nut 6 is screwed to the screw rod 41, When the anchor nut 6 is fixed to the concrete structure 2 through the fixing step S600 of fixing the nut and the step S600 of fixing the anchor cuts to the ring 61 of the anchor nut 6, And lifting the concrete structure 2 (S700).

That is, the concrete structure 2 is lifted and disposed at a desired position through the lifting device.

At this time, when the anchor nut 6 is fixed to the strut 4, when the strut 4 is lifted, the strut 4 is lifted up inside the fixed tube 3, So that the struts 4 are separated from the fixed pipe 3 by unseasoned contact so that the fixed sleeve 5 is stretched and tightly contacted between the struts 4 and the fixed pipe 3 So that it is stably fixed.

When the concrete structure 2 is lifted through the lifting step S700, the closure member fixing step S800 for tightening the stopper member 7 to the upper end of the fixing pipe 3 is performed When the interior of the fixing pipe 3 is closed, the operation is completed.

When the lifted concrete structure 2 is to be re-lifted, the above-mentioned steps are sequentially applied to the concrete structure 1 after separating the stopper member 7 from the fixing pipe 3, It can be salvaged.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: Lifting device 2: Concrete structure
21: Core 3: Fixing tube
31: insertion groove 32: fixing groove
33: auxiliary core member 4: holding member
41: screw rod 5: fixed sleeve
51: Revision of section 52: Fixing projection
53: coupling groove 6: anchor nut
61: collar 7: plug member
71: fastening protrusion 8:
81: handle 82: engaging projection

Claims (4)

A lifting assistance device for a marine concrete structure, which is coupled to a marine concrete structure installed in the ocean and is connected to a lifting device to perform lifting work of the marine concrete structure, comprising:
A fixed pipe having a space portion formed with an opening at an upper end thereof and having an inclined surface with an inner side facing upward and fixed in a state embedded in the concrete structure, an inclined surface inserted into the fixed pipe and having an outer peripheral surface converging to the upper surface, Shaped rod-shaped support having a threaded rod with a threaded protrusion formed thereon, and a plurality of discrete pieces formed at the lower portion of the rod-shaped fixing pipe so that the outer diameter and inner diameter of the lower portion are elongated and expanded And an anchor nut screwed to the screw thread of the strut and having an upper end formed with a ring to which a connection part of the lifting device is fastened;
The maximum diameter of the strut,
A size smaller than a minimum inner diameter of the fixing pipe;
Wherein an outer diameter of the fixing sleeve is smaller than a minimum inner diameter of the fixing tube;
The inner diameter of the fixed sleeve
The diameter of the upper end of the strut is larger than the minimum diameter of the upper end of the strut;
The thickness of the fixing sleeve may be,
A length greater than an interval between the minimum inner diameter of the fixing pipe and the maximum inner diameter of the support;
On the inner surface of the fixed tube,
An insertion groove having a length in a top-down direction is formed;
At a position having an interval between the upper end and the inner end of the fixed pipe,
A fixing groove extending in the horizontal direction in the insertion groove is provided;
On the outer peripheral surface of the fixed sleeve,
A fixing protrusion is formed to fit into the insertion groove and the fixing groove,
At the upper end of the fixed sleeve,
A coupling groove formed downward is formed;
Further comprising an elevating member having an engaging projection for engaging with the engaging groove on the bottom surface thereof and having a handle on the upper surface thereof.
The method of claim 1, further comprising:
Wherein a stopper member formed on an outer circumferential surface of the fixing groove is fitted to an upper end opening of the fixing pipe so as to fit into the insertion groove and the fixing groove.
A method for lifting a marine concrete structure, which is coupled to a marine concrete structure installed in the ocean and is connected to a lifting device to perform a lifting operation of the marine concrete structure, is applied to a marine concrete structure.
Wherein an insertion groove having a length in a direction from an upper end to a lower direction is formed on an inner side surface of the fixed tube, A forming step S100 of a concrete structure embedded in a fixed pipe to cement concrete to form a marine concrete structure in a state where a fixed pipe having a fixing groove formed in a horizontal direction is inserted in the insertion groove;
A strut applying step (S200) for inserting and receiving a 'rod-shaped' strut having an inclined surface with an outer circumferential surface on the inside of the fixing pipe and having a screw rod having a screw protrusion formed on an outer circumferential surface thereof;
A fixing sleeve having an outer diameter and an inner diameter elongated and expanded and formed on an outer circumferential surface thereof and having a fixing protrusion fitted to the insertion groove and the fixing groove so as to fit into the fixing groove, (S300) of accommodating and accommodating the fixed sleeve;
The fixing sleeve may be lifted up to a position where the fixing sleeve is brought into close contact with the inner surface of the fixing tube so that the fixing sleeve is brought into close contact with the inner surface of the fixing tube, (S400) for lifting the inner surface of the fixing tube in a state that the fixing sleeve is lifted;
A fixing sleeve rotation fixing step (S500) of rotating the elevating member to fix the fixing protrusion of the fixing sleeve into the fixing groove of the fixing tube so that the fixing sleeve is prevented from being unintentionally separated from the fixing tube;
When the fixing sleeve is fixed to the fixing pipe through the fixing step S500 of fixing the fixing sleeve, the fixing nut is screwed to the screw thread of the support, and the anchor nut, (S600);
A step (S700) of lifting the concrete structure after connecting the connecting part of the lifting device to the anchor nut when the anchor nut is fixed to the concrete structure through the anchor nut fixing step (S600);
(S800) for fastening the fastening protrusion formed on the outer circumferential surface by fastening the fastening protrusion for fitting the insertion groove and the fastening groove into the upper end of the fastening pipe of the lifted concrete structure through the lifting step (S700) The method for lifting a marine concrete structure according to claim 1,

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KR1020150179429A 2015-12-15 2015-12-15 A auxilliary lifting device of marine concrete strucyures and a lifting methode using lifting equipment KR101618797B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101959058B1 (en) * 2017-12-18 2019-03-18 주식회사 삼우금형 Discharging devices of mold core
KR102604243B1 (en) * 2022-10-25 2023-11-21 주식회사 항도엔지니어링 Anchor type lifting unit and concrete block lifting method using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200303223Y1 (en) * 2002-11-07 2003-02-06 성일물산 주식회사 anchor bolt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200303223Y1 (en) * 2002-11-07 2003-02-06 성일물산 주식회사 anchor bolt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101959058B1 (en) * 2017-12-18 2019-03-18 주식회사 삼우금형 Discharging devices of mold core
KR102604243B1 (en) * 2022-10-25 2023-11-21 주식회사 항도엔지니어링 Anchor type lifting unit and concrete block lifting method using the same

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