EP1449985A2 - Verankerungselement - Google Patents
Verankerungselement Download PDFInfo
- Publication number
- EP1449985A2 EP1449985A2 EP04380041A EP04380041A EP1449985A2 EP 1449985 A2 EP1449985 A2 EP 1449985A2 EP 04380041 A EP04380041 A EP 04380041A EP 04380041 A EP04380041 A EP 04380041A EP 1449985 A2 EP1449985 A2 EP 1449985A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mouth
- anchoring member
- shaped
- tube
- concrete
- 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- Withdrawn
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 31
- 239000004568 cement Substances 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000009415 formwork Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
Images
Classifications
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
Definitions
- the invention is included in the field of anchoring members for hoisting pieces of concrete, cement or the like, in particular to that of anchors consisting in a lost tube inserted in the piece.
- Another system is to use hooks or other gripping members on the crane which are placed to hook the concrete piece.
- the disadvantage of these members is that for them to be sufficiently safe they need to be carefully placed, sometimes by several operators.
- a widespread system is to place a lost anchor within the piece, in the formwork prior to filling with concrete, which remains inserted within the piece when the concrete sets.
- this anchor By means of this anchor, the piece is held so as to be hoisted with the crane.
- These anchors are of many types; in some an eyebolt or the like protrudes where the crane is hooked. They have the drawback that the eyehole protrudes from the piece, and after the latter is placed in position the former frequently must be cut.
- the preferred anchors in many precast concrete pieces for building belong to the type that remains hidden within the piece, without protruding from the surface of its faces.
- tubular anchors having a mouth that remains level with the surface of the concrete piece and having a shape such that it allows introducing and leaving upstanding in the former a foot with a ring which the crane can pull on to move the piece.
- tubular anchors it is necessary for the tubular anchors to have bores through which the bars of the armoring for the concrete are passed in order for the anchors to remain well attached to the concrete. This operation of placing the reinforcing bars through the anchors is not easy, and qualified operators are required in order to carry it out, whereupon the precast piece becomes costlier.
- Another disadvantage is that both boring several holes in the tube and installing the armoring through them are time-consuming operations, whereupon they also are detrimental to the production of the precast piece.
- the present invention consists in an anchoring member for hoisting pieces of concrete, cement or the like, of the type consisting in a lost tube inserted in the concrete piece and which provides several advantages with respect to previously known members.
- the anchoring member of the invention is shaped from a length of tubing of a length smaller than the height of the concrete piece in which it will be inserted.
- This length of tubing has a rectangle-shaped upper mouth having dimensions such that it allows entry in it of the rectangular foot of a hoisting eyebolt and it remains locked inside of the rectangular mouth of the anchoring member when this rectangular foot is turned in a right angle.
- the anchoring member of the invention also has near the opposite mouth, i.e. near the bottom mouth, a flattening in its wall that shapes two opposite triangle-shaped angular folds defining on the inner surface of the tube two straight edges of a length greater than diameter of said tube, which shape a widening in the flattened area.
- the inner surfaces of the angular folds remain in contact with or near each other along the edges of said folds.
- the angular folds form hollows in which concrete and the reinforcing bars of the armoring are introduced, and the widening produced by them serves to hold the anchoring member better.
- the inner surfaces of the folds, which remain in contact with or very close to each other, also serve as a plug for the entrance of concrete to the inside of the tubing.
- An anchoring member is thereby obtained which is easy to manufacture and, by lacking holes through which the reinforcing bars must pass, is also easy to place in the formwork for the concrete piece which subsequently must be hoisted.
- a section of the anchoring member is seen in Figures 1 and 2. It consists in a not very long tube (in any case, its length should be smaller than the height of the concrete piece where it will be inserted), with a cylinder-shaped central body (1). Near the bottom end of the tube it carries a flattening in its wall which shapes two opposite triangle-shaped angular folds (2) defining in the inner surface of the tube two straight edges (3) having a length greater than the diameter of said tube, forming a widening (4) in the flattened area. The inner surfaces of the angular folds remain in contact with or near each other along the edges of said folds, as seen in Figure 1, where the bottom mouth of the tube of the anchor appears virtually closed.
- These triangular folds (2) have two functions: on one hand, they act as plugs to prevent concrete from entering the inside of the tube and blocking the introduction of the hoisting eyebolt. On the other hand, it provides hollows where concrete or the armoring of the formwork are introduced so as to more solidly attach the anchor to the concrete piece.
- a rectangular mouth (6) is shaped.
- This rectangular mouth (6) has two short sides having a length "a” and two long sides having a length "b”; in it enters a hoisting eyebolt (7) consisting of a ring (8) with a straight stem (9) and rectangular, horizontal foot (10) having a minor width "c” of a length somewhat smaller than the minor side "a” of the mouth of the anchor and a major width "d” somewhat smaller than the major side "b” of the mouth of the anchor, and the major width "d” of the foot (10) being clearly larger than the minor side "a” of the mouth of the anchor.
- the hoisting eyebolt (7) is fastened in the anchor by introducing the foot (10) with the major side "d" parallel to the major side "b" of the upper mouth of the anchor and then turning the eyebolt (7) and its foot (10) in a right angle so that, after the turn, the major side of the foot (7) is prevented from exiting as its major width "d" is clearly greater than the minor side "a" of the mouth of the anchor, making possible that if a hoisting means such as a crane is hooked to the ring (8) of the hoisting eyebolt (7) and pulls upwards thereof, it can drag the anchor, and by means thereof, the concrete piece.
- a hoisting means such as a crane is hooked to the ring (8) of the hoisting eyebolt (7) and pulls upwards thereof, it can drag the anchor, and by means thereof, the concrete piece.
- the hoisting eyebolt (7) would be separated from the anchor in the same manner by turning it another straight angle and removing it from the anchor. Thus, the anchor would remain completely imbedded in the concrete piece and the hoisting eyebolt would be removed from it, without there remaining in the concrete piece any projecting element.
- An anchor such as the one of the invention is seen in Figure 3, inserted in a concrete piece (11).
- the concrete piece (11) is reinforced via reinforcing bars (12), which encircle the anchor and aid in keeping it imbedded in the piece.
- the armoring should not pass through any hole in the anchor, but simply be placed in the conventional manner, passing the bars on one side and the other of the anchor of the invention.
- the anchor of the invention is seen in Figure 4, in which the cylinder-shaped central body (1), the angular fold (2) near the bottom end of the anchor, the upper rectangular mouth (6) having major sides "b" and minor sides "a", and the slight grooves (5) are visible.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Ladders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200300426U | 2003-02-20 | ||
ES200300426U ES1053979Y (es) | 2003-02-20 | 2003-02-20 | Elemento de anclaje. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1449985A2 true EP1449985A2 (de) | 2004-08-25 |
EP1449985A3 EP1449985A3 (de) | 2005-01-12 |
Family
ID=8503167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04380041A Withdrawn EP1449985A3 (de) | 2003-02-20 | 2004-02-20 | Verankerungselement |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1449985A3 (de) |
ES (1) | ES1053979Y (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106930415A (zh) * | 2017-03-07 | 2017-07-07 | 西安建筑科技大学 | 一种适用于建筑领域的自锁性锁具及应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4173856A (en) * | 1977-02-03 | 1979-11-13 | Siegfried Fricker | Anchor for the tilt-up and transport of prefabricated building components |
DE2952700A1 (de) * | 1979-12-29 | 1981-07-02 | Imra Bauzubehör GmbH, 5990 Altena | Ankerhuelse |
DE19645759A1 (de) * | 1995-11-09 | 1997-05-15 | Giulio Albanese | Hülsenförmiges Verankerungselement zum Einbetten in eine Betongießmasse |
US6334286B1 (en) * | 1996-09-30 | 2002-01-01 | Sergio Zambelli | Device for lifting prefabricated components, particularly made of concrete, or the like |
-
2003
- 2003-02-20 ES ES200300426U patent/ES1053979Y/es not_active Expired - Fee Related
-
2004
- 2004-02-20 EP EP04380041A patent/EP1449985A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4173856A (en) * | 1977-02-03 | 1979-11-13 | Siegfried Fricker | Anchor for the tilt-up and transport of prefabricated building components |
DE2952700A1 (de) * | 1979-12-29 | 1981-07-02 | Imra Bauzubehör GmbH, 5990 Altena | Ankerhuelse |
DE19645759A1 (de) * | 1995-11-09 | 1997-05-15 | Giulio Albanese | Hülsenförmiges Verankerungselement zum Einbetten in eine Betongießmasse |
US6334286B1 (en) * | 1996-09-30 | 2002-01-01 | Sergio Zambelli | Device for lifting prefabricated components, particularly made of concrete, or the like |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106930415A (zh) * | 2017-03-07 | 2017-07-07 | 西安建筑科技大学 | 一种适用于建筑领域的自锁性锁具及应用 |
Also Published As
Publication number | Publication date |
---|---|
ES1053979U (es) | 2003-06-01 |
EP1449985A3 (de) | 2005-01-12 |
ES1053979Y (es) | 2003-09-16 |
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