EP3997273B1 - Column shoe for fastening reinforced concrete columns to a base - Google Patents

Column shoe for fastening reinforced concrete columns to a base Download PDF

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Publication number
EP3997273B1
EP3997273B1 EP20742796.4A EP20742796A EP3997273B1 EP 3997273 B1 EP3997273 B1 EP 3997273B1 EP 20742796 A EP20742796 A EP 20742796A EP 3997273 B1 EP3997273 B1 EP 3997273B1
Authority
EP
European Patent Office
Prior art keywords
column shoe
section
column
planar side
anchors
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.)
Active
Application number
EP20742796.4A
Other languages
German (de)
French (fr)
Other versions
EP3997273C0 (en
EP3997273A1 (en
Inventor
Jorma Kinnunen
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.)
Peikko Group Oy
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Peikko Group Oy
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Publication of EP3997273A1 publication Critical patent/EP3997273A1/en
Application granted granted Critical
Publication of EP3997273C0 publication Critical patent/EP3997273C0/en
Publication of EP3997273B1 publication Critical patent/EP3997273B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/04—Guide devices; Guide frames
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21—Connections specially adapted therefor
    • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts

Definitions

  • the invention relates to a column shoe for fastening reinforced concrete columns to a base as defined in the preamble of independent claim 1.
  • Publication US 7,726,091 presents a support shoe for a concrete pillar has a base plate and two lateral plates arranged at lateral edges of the base plate and projecting upwardly at a right angle from the base plate. At least one reinforcement bar is connected to the support shoe for introducing forces into the concrete pillar.
  • the two lateral edges and thus also the lateral plates connected thereto are arranged at an acute angle relative to one another, wherein the two lateral plates are formed as separate components connected to the base plate.
  • the object of the invention is to provide a column shoe which has both good stiffness and that can be made so that is has a small cross section so that it can be used also in reinforced concrete columns having a small cross section.
  • the column shoe comprises a bottom plate 1 with a bolt opening 2.
  • the column shoe comprises additionally a side wall member 3 fastened to the bottom plate 1 for providing a bolt casing 4 of the bottom plate 1 and the side wall member 3.
  • a treaded rod or the like that projects from the base, penetrates the bottom plate 1 in the bolt opening 2 and nuts are screwed to the treaded rod to secure the column shoe to the treaded rod.
  • the column shoe comprises additionally main bonds 5 fastened to the side wall member 3 for fastening the column shoe and the reinforced concrete column to one another.
  • the column shoe comprises additionally back bond means 6.
  • the side wall member 3 is a monolithic structure comprising two planar side plate sections 7 and a connecting section 8 connecting said two side plates sections.
  • the column shoe is symmetrical with respect to an imaginary vertical central plane A of the bolt casing 4.
  • the angle ⁇ between the planar side plate sections 7 is between about 40° and about 60°, preferably between about 45° and about 50°, such as about 48°.
  • the back bond means 6 comprises two separate back anchors 9, each fastened to the back surface 12 of each planar side plate sections 7 that face away from one another.
  • Each back anchor 9 has a fastening section 10 by means of which the back anchor 9 is fastened by welding to said back surface 12 of the side plates section by welding along the fastening section 10 and a vertical section 11 that extends in parallel with the main bonds 5.
  • the back bond means 6 are dimensioned so, and the back bond means 6 are fastened to said back surface 12 of the side plates section so, that the vertical section 11 of the back anchors 9 are arranged at a distance from one another.
  • the back bond means 6 will be securily fastened to the planar side plate section 7 because the arranging of the back anchors 9 are securily fastened to the said back surface 12 of the side plates section by welding along the fastening section 10.
  • a narrow angle ⁇ between the planar side plate sections 7 enables to use two separate anchors. Because of the angle ⁇ between the planar side plate sections 7, the cross section of the column shoe is small, which makes it easy to install for example 4 column shoes, one column shoe in each corner, to a column having a small cross section.
  • a narrow angle ⁇ between the planar side plate sections 7 leads also to increased stiffness of the bolt casing 4 of the column shoe.
  • An advantage of this is that the side wall member 3 can be made of a thinner material to achieve the required stiffness. Because of the provision of a back bond means 6 comprising of two separate back anchors 9, arranging of the column shoe with respect to the reinforcement structure of the reinforced concrete column is easy, when manufacturing the reinforced concrete column by casting.
  • the back anchors 9 are preferably, but not necessarily, identical and arranged symmetrically with respect to the imaginary vertical central plane A of the bolt casing 4.
  • the main bonds 5 comprises preferably, but not necessarily, two main bonds 5 so that one main bond 5 is fastened to inner surface 13 of each planar side plate section 7 that faces one another.
  • the main bonds 5 are preferably, but not necessarily identical and being arranged symmetrically with respect to the imaginary vertical central plane A of the bolt casing 4.
  • each back anchor 9 extend preferably, but not necessarily, perpendicularly with respect to the vertical section 11 of the back anchor 9.
  • the bolt opening 2 in the bottom plate 1 is preferably, but not necessarily, symmetrically provided with respect to the imaginary vertical central plane A of the bolt casing 4.
  • connection section 8 is preferably, but not necessarily, curved, as illustrated in the figures.
  • Planar side plate sections 7 facilitates fastening of the back anchors 9 by welding to the planar side plate sections 7 and makes a stronger connection between the planar side plate sections 7 and the back anchors 9 possible, because the welding joints between the planar side plate sections 7 and the back anchors 9 can be linear. Provision of a curved connection section 8 makes the side wall member 3 more rigid.
  • each back anchor 9 extend preferably, but not necessarily, in parallel with the bottom plate 1, as illustrated in the figures.
  • the imaginary vertical central plane A of the bolt casing 4 is preferably, but not necessarily, not crossed by any of the back anchors 9, as illustrated in the figures. This makes the column easy to manufacture and makes it easy to install the column shoe in a mold for casting a column.
  • Each of the back anchors 9 are preferably, but not necessarily, arranged spaced apart from the imaginary vertical central plane A of the bolt casing 4, as illustrated in the figures. This makes the column easy to manufacture and makes it easy to install the column shoe in a mold for casting a column.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Foundations (AREA)
  • Joining Of Building Structures In Genera (AREA)

Description

    Field of the invention
  • The invention relates to a column shoe for fastening reinforced concrete columns to a base as defined in the preamble of independent claim 1.
  • Publication US 7,726,091 presents a support shoe for a concrete pillar has a base plate and two lateral plates arranged at lateral edges of the base plate and projecting upwardly at a right angle from the base plate. At least one reinforcement bar is connected to the support shoe for introducing forces into the concrete pillar. The two lateral edges and thus also the lateral plates connected thereto are arranged at an acute angle relative to one another, wherein the two lateral plates are formed as separate components connected to the base plate.
  • Column shoes are also disclosed e.g. in EP3020867A , EP1057950A , WO2012056100A and in WO2007074212A .
    • Objective
  • The object of the invention is to provide a column shoe which has both good stiffness and that can be made so that is has a small cross section so that it can be used also in reinforced concrete columns having a small cross section.
    • Short description
  • The above objective is solved by the features of independent claim 1.
  • Preferred embodiments of the column shoe are defined in the dependent claims.
    • List of figures
  • In the following the column shoe will described in more detail by referring to the figures, of which
    • Figure 1 shows one embodiment of the column shoe,
    • Figure 2 shows the column shoe shown in figure 1 from another angle,
    • Figure 3 shows the column shoe shown in figure 1 from another angle,
    • Figure 4 shows the column shoe shown in figure 1 from below, and
    • Figure 5 shows the column shoe shown in figure 1 from above.
    Detailed description of the invention
  • In the following, the column shoe for fastening reinforced concrete columns to a base and some embodiments and variants of the column shoe will be described in greater detail.
  • The column shoe comprises a bottom plate 1 with a bolt opening 2. The column shoe comprises additionally a side wall member 3 fastened to the bottom plate 1 for providing a bolt casing 4 of the bottom plate 1 and the side wall member 3. When the column shoe is casted into a reinforced concrete column and said reinforced concrete column is fastened to a base by means of the column shoe, a treaded rod or the like, that projects from the base, penetrates the bottom plate 1 in the bolt opening 2 and nuts are screwed to the treaded rod to secure the column shoe to the treaded rod.
  • The column shoe comprises additionally main bonds 5 fastened to the side wall member 3 for fastening the column shoe and the reinforced concrete column to one another.
  • The column shoe comprises additionally back bond means 6.
  • In the column shoe, the side wall member 3 is a monolithic structure comprising two planar side plate sections 7 and a connecting section 8 connecting said two side plates sections.
  • The column shoe is symmetrical with respect to an imaginary vertical central plane A of the bolt casing 4.
  • In the column shoe, the angle α between the planar side plate sections 7 is between about 40° and about 60°, preferably between about 45° and about 50°, such as about 48°.
  • In the column shoe, the back bond means 6 comprises two separate back anchors 9, each fastened to the back surface 12 of each planar side plate sections 7 that face away from one another. Each back anchor 9 has a fastening section 10 by means of which the back anchor 9 is fastened by welding to said back surface 12 of the side plates section by welding along the fastening section 10 and a vertical section 11 that extends in parallel with the main bonds 5. The back bond means 6 are dimensioned so, and the back bond means 6 are fastened to said back surface 12 of the side plates section so, that the vertical section 11 of the back anchors 9 are arranged at a distance from one another.
  • The back bond means 6 will be securily fastened to the planar side plate section 7 because the arranging of the back anchors 9 are securily fastened to the said back surface 12 of the side plates section by welding along the fastening section 10. A narrow angle α between the planar side plate sections 7 enables to use two separate anchors. Because of the angle α between the planar side plate sections 7, the cross section of the column shoe is small, which makes it easy to install for example 4 column shoes, one column shoe in each corner, to a column having a small cross section. Because of the narrow angle α between the planar side plate sections 7, the cross section of the column shoe is small, which leads to material savings in the column shoe, which in turn results in reduced material costs, and reduced weight of the column shoe, which in turn results in that the column shoe is easy to handle. A narrow angle α between the planar side plate sections 7 leads also to increased stiffness of the bolt casing 4 of the column shoe. An advantage of this is that the side wall member 3 can be made of a thinner material to achieve the required stiffness. Because of the provision of a back bond means 6 comprising of two separate back anchors 9, arranging of the column shoe with respect to the reinforcement structure of the reinforced concrete column is easy, when manufacturing the reinforced concrete column by casting. Using of two separate back anchors 9 requires also less space than to use one single back anchor and this makes it possible to make the column shoe smaller, which in turn makes it possible to make the cross section of the column, in which the column shoe is to be used, smaller. Using of two separate back anchors 9 in a column shoe will also distribute forces to the column in which the column shoe is used more evenly than a column show provided with one single back anchor.
  • The back anchors 9 are preferably, but not necessarily, identical and arranged symmetrically with respect to the imaginary vertical central plane A of the bolt casing 4.
  • The main bonds 5 comprises preferably, but not necessarily, two main bonds 5 so that one main bond 5 is fastened to inner surface 13 of each planar side plate section 7 that faces one another.
  • The main bonds 5 are preferably, but not necessarily identical and being arranged symmetrically with respect to the imaginary vertical central plane A of the bolt casing 4.
  • The fastening section 10 of each back anchor 9 extend preferably, but not necessarily, perpendicularly with respect to the vertical section 11 of the back anchor 9.
  • The bolt opening 2 in the bottom plate 1 is preferably, but not necessarily, symmetrically provided with respect to the imaginary vertical central plane A of the bolt casing 4.
  • In the side wall member 3, the connection section 8 is preferably, but not necessarily, curved, as illustrated in the figures. Planar side plate sections 7 facilitates fastening of the back anchors 9 by welding to the planar side plate sections 7 and makes a stronger connection between the planar side plate sections 7 and the back anchors 9 possible, because the welding joints between the planar side plate sections 7 and the back anchors 9 can be linear. Provision of a curved connection section 8 makes the side wall member 3 more rigid.
  • The fastening section 10 of each back anchor 9 extend preferably, but not necessarily, in parallel with the bottom plate 1, as illustrated in the figures.
  • The imaginary vertical central plane A of the bolt casing 4 is preferably, but not necessarily, not crossed by any of the back anchors 9, as illustrated in the figures. This makes the column easy to manufacture and makes it easy to install the column shoe in a mold for casting a column.
  • Each of the back anchors 9 are preferably, but not necessarily, arranged spaced apart from the imaginary vertical central plane A of the bolt casing 4, as illustrated in the figures. This makes the column easy to manufacture and makes it easy to install the column shoe in a mold for casting a column.
  • It is apparent to a person skilled in the art that as technology advances, the basic idea of the invention can be implemented in various ways. The invention and its embodiments are therefore not restricted to the above examples, but they may vary within the scope of the claims.

Claims (9)

  1. A column shoe for fastening reinforced concrete columns to a base, wherein the column shoe comprises:
    a bottom plate (1) with a bolt opening (2),
    a side wall member (3) fastened to the bottom plate (1), the side wall member (3) and the bottom plate (1) providing a bolt casing (4),
    main bonds (5) fastened to the side wall member (3) for fastening the column shoe and the reinforced concrete column to one another, and
    back bond means (6),
    wherein the side wall member (3) is a monolithic structure comprising two planar side plate sections (7) and a connecting section (8) connecting said two planar side plates sections (7), and
    wherein the bolt casing (4) is symmetrical with respect to an imaginary vertical central plane A of the bolt casing (4),
    wherein
    the angle α between the planar side plate sections (7) being between about 40° and about 60°, preferably between about 45° and about 50°, such as about 48°, the back bond means (6) comprising two separate back anchors (9) each fastened to a back surface (12) of one of the two planar side plate sections (7), which back surfaces (12) of the two planar side plate sections (7) face away from one another, each separate back anchor (9) having a fastening section (10) by means of which the separate back anchor (9) is fastened by welding to said back surface (12) of the planar side plate section (7) by welding along the fastening section (10) the fastening section (10) of each back anchor (9) extending in parallel with the bottom plate (1),
    characterised
    by each separate back anchor (9) having a vertical section (11) that extends in parallel with the main bonds (5), and
    by the each separate back anchors (9) of the back bond means (6) being dimensioned so and by each separate back anchors (9) of the back bond means (6) being fastened to said back surface (12) of the planar side plates sections (7) so that the vertical section (11) of the two separate back anchors (9) are arranged at a distance from one another.
  2. The column shoe according to claim 1, characterized
    by the two separate back anchors (9) being identical and being arranged symmetrically with respect to the imaginary vertical central plane A of the bolt casing (4).
  3. The column shoe according to claim 1 or 2, characterized
    by the main bonds (5) comprising two main bonds (5) so that each main bond (5) is fastened to a respective inner surface (13) of the respective planar side plate section (7), wherein the inner surfaces (13) of the planar side plate sections (7) face one another.
  4. The column shoe according to claim 3, characterized
    by the two main bonds (5) being identical and being arranged symmetrically with respect to the imaginary vertical central plane A of the bolt casing (4).
  5. The column shoe according to any of the claims 1 to 4, characterized
    by the fastening section (10) of each back anchor (9) extending perpendicularly with respect to the vertical section (11) of the back anchor (9).
  6. The column shoe according to any of the claims 1 to 5, characterized
    by the bolt opening (2) in the bottom plate (1) being symmetrically provided with respect to the imaginary vertical central plane A of the bolt casing (4).
  7. The column shoe according to any of the claims 1 to 6, characterized
    by the connection section (8) being curved.
  8. The column shoe according to any of the claims 1 to 7, characterized
    by the imaginary vertical central plane A of the bolt casing (4) being not crossed by any of the back anchors (9).
  9. The column shoe according to any of the claims 1 to 8, characterized
    by each of the back anchors (9) being arranged spaced apart from the imaginary vertical central plane A of the bolt casing (4).
EP20742796.4A 2019-07-12 2020-06-29 Column shoe for fastening reinforced concrete columns to a base Active EP3997273B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20195632 2019-07-12
PCT/FI2020/050473 WO2021009409A1 (en) 2019-07-12 2020-06-29 Column shoe for fastening reinforced concrete columns to a base

Publications (3)

Publication Number Publication Date
EP3997273A1 EP3997273A1 (en) 2022-05-18
EP3997273C0 EP3997273C0 (en) 2023-07-26
EP3997273B1 true EP3997273B1 (en) 2023-07-26

Family

ID=71670286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20742796.4A Active EP3997273B1 (en) 2019-07-12 2020-06-29 Column shoe for fastening reinforced concrete columns to a base

Country Status (9)

Country Link
EP (1) EP3997273B1 (en)
KR (1) KR20220033049A (en)
CN (1) CN114127366B (en)
AU (1) AU2020312760B2 (en)
ES (1) ES2961188T3 (en)
HU (1) HUE063672T2 (en)
PL (1) PL3997273T3 (en)
WO (1) WO2021009409A1 (en)
ZA (1) ZA202110804B (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817832A1 (en) * 1998-04-22 1999-10-28 Peikko Gmbh Column shoe for attaching a concrete pile to a base
DE20002501U1 (en) * 1999-06-04 2000-12-07 Pfeifer Holding Gmbh & Co Kg Precast support
FI20020422A (en) * 2002-03-05 2003-09-06 Tartuntamarkkinointi Oy Column Shoe
DE50303601D1 (en) 2003-11-13 2006-07-06 Halfen Gmbh & Co Kg Column shoe for concrete pillars
FI118186B (en) * 2005-12-27 2007-08-15 Peikko Finland Oy column shoe
FI20106109A (en) * 2010-10-26 2012-04-27 Peikko Group Oy column shoe
FI20126323L (en) * 2012-12-18 2014-06-19 Peikko Group Oy PILLAR SHOE
FI126440B (en) * 2014-11-13 2016-12-15 Anstar Oy Column Shoe

Also Published As

Publication number Publication date
ZA202110804B (en) 2023-02-22
AU2020312760A1 (en) 2022-02-10
HUE063672T2 (en) 2024-01-28
PL3997273T3 (en) 2023-09-25
EP3997273C0 (en) 2023-07-26
AU2020312760B2 (en) 2024-02-01
WO2021009409A1 (en) 2021-01-21
KR20220033049A (en) 2022-03-15
ES2961188T3 (en) 2024-03-08
CN114127366A (en) 2022-03-01
CN114127366B (en) 2023-12-19
EP3997273A1 (en) 2022-05-18

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