EP2679533A2 - Large concrete block for lifting a crane, method for manufacturing same, and method for installing same - Google Patents

Large concrete block for lifting a crane, method for manufacturing same, and method for installing same Download PDF

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Publication number
EP2679533A2
EP2679533A2 EP12749829.3A EP12749829A EP2679533A2 EP 2679533 A2 EP2679533 A2 EP 2679533A2 EP 12749829 A EP12749829 A EP 12749829A EP 2679533 A2 EP2679533 A2 EP 2679533A2
Authority
EP
European Patent Office
Prior art keywords
connection
wire
concrete block
rope
insert tube
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Withdrawn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
EP12749829.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Sang Gi Kim
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.)
YUJOO CO Ltd
Original Assignee
YUJOO CO Ltd
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 YUJOO CO Ltd filed Critical YUJOO CO Ltd
Publication of EP2679533A2 publication Critical patent/EP2679533A2/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/388—Separate connecting elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings

Definitions

  • the present invention relates, in general, to a large concrete block, a method for manufacturing the same and a method for installation of the same and, more particularly, to a large concrete block which is lifted by a crane.
  • the large concrete blocks typically refer to concrete structures.
  • a large concrete block for harbor construction work will be illustrated as one example of such large concrete blocks, the present invention is not limited to this, and all kinds of concrete structures which are lifted by cranes fall within the bounds of the present invention.
  • a large concrete block 10 shown in Figs. 1 and 2 has lifting eye members 20 in an upper surface thereof, which are used when the large concrete block 10 is lifted by a crane.
  • lifting eye member receiving depressions 11 are formed in the upper surface of the large concrete block 10, and an upper end of each lifting eye member 20 is disposed in the corresponding lifting eye member receiving depression 11.
  • the lifting eye members 20 are disposed in a mold before concrete is cast into the mold to form the large concrete block 10. When the concrete casting is completed, lower ends of the lifting eye members 20 are embedded in the concrete so that the lifting eye members 20 can be fixed to the concrete block 10. Furthermore, the lower end of each lifting eye member 20 generally has a fixing structure by which the lifting eye member 20 is more reliably fixed to the concrete block.
  • Fig. 3 illustrates a hollow block type of large concrete block 10 where a central portion thereof is empty and an upper end thereof is open.
  • Each lifting eye member 20 can be formed by different kinds of methods, for example, using a reinforcing bar, a wire rope, etc.
  • the conventional large concrete block has the following problems.
  • an object of the present invention is to provide a large concrete block which includes a concrete block body made of concrete, and a connection-wire-rope insert tube which is made of synthetic resin and is provided in the concrete block body in such a way that a medial portion thereof is embedded in the concrete block body and opposite ends thereof are disposed in an upper surface of the concrete block body and oriented upwards.
  • the present invention provides a large concrete block for crane lifting, including: a concrete block body made of concrete; and a connection-wire-rope insert tube made of synthetic resin, the connection-wire-rope insert tube being embedded at a medial portion thereof in the concrete block body in such a way that opposite ends of the connection-wire-rope insert tube are disposed in an upper surface of the concrete block body and oriented upwards.
  • connection-wire-rope insert tube may be arranged to have an arc shape that is convex downwards along a longitudinal direction thereof.
  • connection-wire-rope insert tube may have a corrugated tube shape.
  • a tube stopper may be removably coupled to each of opposite ends of the connection-wire-rope insert tube.
  • the large concrete block may further include a connection wire rope, with lifting eyes provided on respective opposite ends of the connection wire rope, wherein the connection wire rope is disposed in the connection-wire-rope insert tube so as to be movable along the connection-wire-rope insert tube, and the lifting eyes of the connection wire rope are exposed to the outside from the connection-wire-rope insert tube.
  • the present invention provides a method for manufacturing a large concrete block for crane lifting, including: disposing a connection-wire-rope insert tube made of synthetic resin in a mold for forming a concrete block body in such a way that the connection-wire-rope insert tube has a U shape; and casting concrete into the mold and forming a concrete block body in such a way that a medial portion of the connection-wire-rope insert tube is embedded in the concrete block body and opposite ends of the connection-wire-rope insert tube are disposed at an upper surface of the concrete block body and oriented upwards.
  • the present invention provides a method for installation of a large concrete block, including: a concrete block manufacturing operation of disposing a connection-wire-rope insert tube made of synthetic resin in a mold for forming a concrete block body in such a way that the connection-wire-rope insert tube has a U shape, and casting concrete into the mold and forming a concrete block body in such a way that a medial portion of the connection-wire-rope insert tube is embedded in the concrete block body and opposite ends of the connection-wire-rope insert tube are disposed at an upper surface of the concrete block body and oriented upwards; a connection wire rope installation operation of passing a first end of a connection wire rope through the connection-wire-rope insert tube so that the first end of the connection wire rope is exposed to the outside from a first end of the connection-wire-rope insert tube while a second end of the connection wire rope is exposed to the outside from a second end of the connection-wire-rope insert tube; a lifting and placing operation of connecting a crane to
  • connection wire rope may include lifting eyes provided on respective opposite ends of the connection wire rope.
  • the crane may use both the lifting eyes to lift the large concrete block and place the large concrete block at a predetermined place, and the connection wire rope removal operation may comprise separating either of the lifting eyes from the crane and lifting a remaining one of the lifting eyes using the crane so that the connection wire rope is removed from the connection-wire-rope insert tube.
  • the present invention has the following effects.
  • Figs. 4 and 5 are, respectively, a perspective view and a sectional view of a large concrete block according to a first embodiment of the present invention.
  • the large concrete block 100 includes a concrete block body 110 which is made of concrete, and a connection-wire-rope insert tube 120 which is made of synthetic resin.
  • connection-wire-rope insert tube 120 is embedded at a medial portion thereof in the concrete block body 110 in such a way so as to have an arc shape which is convex downwards along the longitudinal direction thereof.
  • the connection-wire-rope insert tube 120 is configured to have a U shape.
  • connection-wire-rope insert tube 120 is arranged such that opposite ends thereof are disposed in an upper surface of the concrete block body 110 and oriented upwards.
  • the opposite ends of the connection-wire-rope insert tube 120 are illustrated as being oriented in the upright direction, this is only one example.
  • the opposite ends of the connection-wire-rope insert tube 120 may be oriented diagonally upwards towards the central portion of the concrete block body 110.
  • connection-wire-rope insert tube 120 Even if the connection-wire-rope insert tube 120 is exposed to seawater or the like for a long period of time, there is no probability of corrosion of the tube 120, because it is made of synthetic resin.
  • connection-wire-rope insert tube 120 has a corrugated tube shape.
  • the connection-wire-rope insert tube 120 may be an ELP tube which is a kind of corrugated tube and is used to arrange wires. The reason for this is due to the fact that, because corrugated tubes are typically flexible, when the connection-wire-rope insert tube 120 is installed in the concrete block body at a site, work of bending the connection-wire-rope insert tube 120 into a downward-convex arc shape can be facilitated.
  • connection-wire-rope insert tube 120 has a corrugated tube shape, there is an advantage in that it can be more closely integrated with the concrete block body 110.
  • Fig. 6a illustrates the shape of a mold before concrete casting.
  • the mold is formed corresponding to the size and shape of the concrete block body.
  • a Sepa bolt and a Sepa nut are provided in the mold so that the mold can withstand lateral pressure of concrete that is poured into the mold.
  • a method for installation or disassembly of the mold and the Sepa nut and bolt are the same as that of a process of manufacturing a typical large concrete block, therefore further detailed explanation is deemed unnecessary.
  • connection-wire-rope insert tube 120 is fixed in the mold by the Sepa bolt, etc.
  • connection-wire-rope insert tube 120 is fixed in a U shape.
  • the connection-wire-rope insert tube 120 may be a tube which has been manufactured to have a U shape or, alternatively, it may be a flexible linear tube and bent into a U shape at a site.
  • connection-wire-rope insert tube 120 is open, it is preferable that when concrete casting, the opposite ends of the connection-wire-rope insert tube 120 are sealed with tape or the like so that concrete can be prevented from entering the connection-wire-rope insert tube 120.
  • Fig. 6b shows the shape of the mold after the concrete casting has been completed.
  • connection-wire-rope insert tube 120 When concrete is poured into the mold, the concrete block body 110 is formed, and the medial portion of the connection-wire-rope insert tube 120 is embedded in the concrete block body 110 while the opposite ends of the connection-wire-rope insert tube 120 are exposed to the outside from the upper surface of the concrete block body 110.
  • Fig. 6c is a sectional view of the completed large concrete block.
  • connection-wire-rope insert tube 120 that protrude from the upper surface of the concrete block body 110 are cut out such that they are level with the upper surface of the concrete block body 110, thus forming the stat of Fig. 6c .
  • a hole formed by the Sepa bolt or the like is not shown in Fig. 6c .
  • Fig. 7a illustrates a process of inserting a connection wire rope 130 into the large concrete block 100.
  • Fig. 7b illustrates the connection wire rope 130 installed in the large concrete block 100.
  • connection wire rope 130 is a typical wire rope, and lifting eyes 131 are respectively provided on opposite ends of the connection wire rope 130.
  • connection wire rope 130 passes through the connection-wire-rope insert tube 120, so that the first end of the connection wire rope 130 is exposed to the outside from a first end of the connection-wire-rope insert tube 120, and a second end of the connection wire rope 130 is exposed to the outside from a second end of connection-wire-rope insert tube 120.
  • both of the lifting eyes 131 must be exposed to the outside from the large concrete block 100.
  • connection-wire-rope insert tube 120 it is advantageous for the connection-wire-rope insert tube 120 to have a diameter which is as small as possible, and for the lifting eye 131 to have a diameter which is as large as possible and for the connection wire rope 130 to have as large a thickness as possible.
  • the diameter of the lifting eye 131 of the connection wire rope 130 is merely slightly smaller than the diameter of the connection-wire-rope insert tube 120.
  • connection wire rope 130 Due to this size relation, it is not easy to pass the connection wire rope 130 through the connection-wire-rope insert tube 120.
  • a towing wire 132 that has a small diameter is previously connected to the lifting eye 131 that is provided on the first end of the connection wire rope 130.
  • the towing wire 132 is thereafter inserted into the connection-wire-rope insert tube 120 such that the towing wire 132 passes through the connection-wire-rope insert tube 120.
  • the towing wire 132 is further pulled until the connection wire rope 130 enters the state of Fig. 7b . Then, the towing wire 132 is removed from the connection wire rope 130.
  • the state of Fig. 7b is a state in which the large concrete block 100 is prepared for lifting or placement.
  • Fig. 7c is a perspective view of Fig. 7b .
  • connection wire ropes 130 and four lifting eyes 131 are provided for the single large concrete block 100.
  • Fig. 8a illustrates a process in which the crane lifts the large concrete block 100 using the connection wire rope 130, in detail, the lifting eyes 131.
  • Fig. 8b illustrates a process in which the crane places the large concrete block 100 at a predetermined place.
  • Fig. 8c shows disconnecting the crane from either of the lifting eyes 131 of the connection wire rope 130 after the installation of the large concrete block 100 has been completed. From this state, as shown in Fig. 8d , when the crane lifts the connection wire rope 130 using the other lifting eye 131, the connection wire rope 130 is removed from the large concrete block 100.
  • connection wire rope 130 that has been removed from the large concrete block 100 may then be reused to lift another large concrete block.
  • Figs. 8c and 8d show facilitation of removal of the connection wire rope 130 from the large concrete block, given the fact that the large concrete block may be placed under water.
  • Figs. 8c and 8d illustrate that, even when a diver separates only either of the lifting eyes from the crane, the connection wire rope 130 can be easily removed from the large concrete block.
  • connection wire rope 130 from the large concrete block 100 may be simply conducted in such a way that the worker separates both lifting eyes 131 from the crane and pulls the connection wire rope 130 in either direction.
  • Figs. 9 and 10 illustrate a hollow block type of large concrete block according to a second embodiment of the present invention.
  • Fig. 9 is a perspective view of the large concrete block according to the second embodiment of the present invention
  • Fig. 10 is a sectional view of Fig. 9 .
  • Fig. 11 is a perspective view illustrating a large concrete block according to a third embodiment of the present invention.
  • connection wire rope 130 because a tensile load is applied to the lifting eyes 131 provided on the opposite ends of the connection wire rope 130, stress applied to the connection wire rope 130 is about double that of the conventional technique in which a tensile load is applied to the connection wire rope in only one direction, so that the connection wire rope 130 of the present invention must be thicker than that of the conventional technique. In response to this, the diameter of the connection-wire-rope insert tube 120 must also be increased.
  • connection-wire-rope insert tubes 120 are installed in a portion where the single connection-wire-rope insert tube 120 would be ordinarily provided, the two connection-wire-rope insert tubes 120 share the load applied thereto. As a result, the thickness of each connection wire rope 130 can be the same as that of the conventional technique.
  • connection-wire-rope insert tubes 120 are provided (this means that a total of four connection wire ropes 130 are used), wherein a connection wire rope that has a typical thickness can be used as each connection wire rope 130. Thereby, the diameter of each connection-wire-rope insert tube 120 can also be reduced.
  • Fig. 12 is a perspective view illustrating a large concrete block according to a fourth embodiment of the present invention.
  • connection-wire-rope insert tube 120 In the case where the large concrete block 100 is stored for a long period of time before it is installed or a long period of time has passed after it has been installed, there is a possibility of a foreign substance entering the connection-wire-rope insert tube 120 if the opposite ends of the connection-wire-rope insert tube 120 is in the open state.
  • connection-wire-rope insert tube 120 If a comparatively large foreign substance enters the connection-wire-rope insert tube 120, it may become difficult to pass the connection wire rope 130 through the connection-wire-rope insert tube 120.
  • a tube stopper 140 is provided on each of the opposite ends of the connection-wire-rope insert tube 120 in such a way that the tube stopper 140 is removably coupled to the corresponding end of the connection-wire-rope insert tube 120.
  • an external threaded part 141 is formed on a lower end of the tube stopper 140 so that the tube stopper 140 can be threadedly coupled to the connection-wire-rope insert tube 120.
  • a rotation handling part 142 is provided on an upper surface of the tube stopper 140 so that a worker can rotate the tube stopper 140 using the rotation handling part 142.
  • the opposite ends of the connection-wire-rope insert tube 120 can be easily sealed by the tube stoppers 140, and removal of the tube stoppers 140 from the connection-wire-rope insert tube 120 can also be facilitated. That is, a relationship between the tube stopper 140 and the connection-wire-rope insert tube 120 corresponds to that between a nut and bolt.
  • Fig. 13 is a view illustrating a method for manufacturing the large concrete block of Fig. 12 .
  • Fig. 13a illustrates a mold into which concrete has been poured.
  • the mold is formed corresponding to the size and shape of the concrete block body.
  • Sepa bolts and Sepa nuts are provided in the mold so that the mold can withstand lateral pressure of concrete that is poured into the mold.
  • a connection-wire-rope insert tube 120 is fixed in the mold by the Sepa nuts and bolts, and tube stoppers 140 are coupled to the respective opposite ends of the connection-wire-rope insert tube 120.
  • a tube support holder 200 is provided on an upper end of the mold.
  • the tube stoppers 140 which are threadedly coupled to the connection-wire-rope insert tube 120 are temporarily fastened to the tube support holder 200.
  • the connection-wire-rope insert tube 120 can be fastened to the tube support holder 200.
  • connection-wire-rope insert tube 120 Comparing this state to the state of Fig. 6b , there is no portion of the connection-wire-rope insert tube 120 which is exposed to the outside from the concrete block body 110. Therefore, unlike the case of Fig. 6b , work of cutting out a portion of the connection-wire-rope insert tube 120 is not required.
  • Fig. 13b illustrates the concrete block when the mold and other elements are removed from the state of Fig. 13a after the concrete has been cured.
  • connection-wire-rope insert tube 120 In this state, even if the large concrete block 100 is stored for a long period of time, there is no possibility of a foreign substance entering the connection-wire-rope insert tube 120.
  • Fig. 13c shows the large concrete block 100 from which the tube stoppers 140 are removed to conduct a process of lifting the concrete block and placing it at a predetermined place.
  • connection-wire-rope insert tube 120 After the process of lifting the large concrete block 100 and placing it at a predetermined place has been completed, if it is required for the large concrete block 100 to be reused later, as shown in Fig. 13b , the opposite end ends of the connection-wire-rope insert tube 120 are covered again with the tube stoppers 140.
  • the present invention relates to a large concrete block which is used in a variety of fields such as harbor construction work, piping work, etc.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Revetment (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP12749829.3A 2011-02-23 2012-02-21 Large concrete block for lifting a crane, method for manufacturing same, and method for installing same Withdrawn EP2679533A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110015901A KR101220995B1 (ko) 2011-02-23 2011-02-23 대형 콘크리트 블록 설치 방법
PCT/KR2012/001285 WO2012115418A2 (ko) 2011-02-23 2012-02-21 크레인 인양용 대형 콘크리트 블록, 그 제작 방법 및 그 설치 방법

Publications (1)

Publication Number Publication Date
EP2679533A2 true EP2679533A2 (en) 2014-01-01

Family

ID=45028073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12749829.3A Withdrawn EP2679533A2 (en) 2011-02-23 2012-02-21 Large concrete block for lifting a crane, method for manufacturing same, and method for installing same

Country Status (6)

Country Link
US (1) US20130326967A1 (ko)
EP (1) EP2679533A2 (ko)
KR (1) KR101220995B1 (ko)
CN (1) CN103429519B (ko)
BR (1) BR112013021108A2 (ko)
WO (1) WO2012115418A2 (ko)

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WO2023218133A1 (en) * 2022-05-13 2023-11-16 Tsr Install Ab A surface element, a method for manufacturing a surface element and a gabion

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KR101746097B1 (ko) 2016-08-24 2017-06-13 (주)유주 케이슨 블록 시공 방법 및 케이슨 블록 구조체
KR102014593B1 (ko) * 2017-06-09 2019-08-26 강태욱 재활용 환봉 무들 고리 제작방법
KR102085578B1 (ko) 2017-06-21 2020-03-06 (주)유주 콘크리트 블록 설치용 가이드 부재
KR102112633B1 (ko) 2017-07-21 2020-05-19 (주)유주 콘크리트 팩 삽입장치를 이용한 콘크리트 블록 구조물 시공 방법
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KR20110112191A (ko) 2011-10-12
WO2012115418A3 (ko) 2012-11-15
US20130326967A1 (en) 2013-12-12
WO2012115418A2 (ko) 2012-08-30
CN103429519B (zh) 2015-04-01
BR112013021108A2 (pt) 2019-09-24
KR101220995B1 (ko) 2013-01-10
CN103429519A (zh) 2013-12-04

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