US3460309A - Supporting means for concrete reinforcements - Google Patents

Supporting means for concrete reinforcements Download PDF

Info

Publication number
US3460309A
US3460309A US508056A US3460309DA US3460309A US 3460309 A US3460309 A US 3460309A US 508056 A US508056 A US 508056A US 3460309D A US3460309D A US 3460309DA US 3460309 A US3460309 A US 3460309A
Authority
US
United States
Prior art keywords
concrete
slabs
spacing
reinforcing
supporting
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.)
Expired - Lifetime
Application number
US508056A
Other languages
English (en)
Inventor
Walter Ernst
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.)
Baustahlgewebe GmbH
Original Assignee
Baustahlgewebe GmbH
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 Baustahlgewebe GmbH filed Critical Baustahlgewebe GmbH
Application granted granted Critical
Publication of US3460309A publication Critical patent/US3460309A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

Definitions

  • the present invention relates to supporting means for concrete rinforcements, in particular steel mats or the like reinforcing structures comprising parallel reinforcing rods or bars spaced from each other by substantially constant spacing distance.
  • Supporting and spacing means for the lower reinforcement of a concrete floor or the like structure have already become known in the art in a variety of designs and constructions. Their main purpose is to ensure a constant spacing distance between a reinforcing steel mat, from the lower surface of the fioor or the like concrete structure.
  • the supporting devices may be disposed either directly below and in contact with the undersurface of the steel rods or bars of the reinforcing structure, or at the intersection points of two rods of the reinforcing mat or structure.
  • Concrete spacing blocks of the foregoing type have the disadvantage, among others, that a firm and permanent connection with the surrounding concrete body (floor, ceiling, etc.) is not always possible, whereby the blocks may become loose or even drop out completely, or otherwise impair the homogeneity and/or appearance of the concrete structures.
  • an object of the present invention is the provision of relatively simple and efficient concrete spacing means of the general type referred to and adapted for use in connection with concrete reinforcing mats or the like structures comprising parallel rods spaced at a predetermined substantially constant distance, the improved spacing means according to the invention being substantially devoid of the afore-mentioned and related defects and drawbacks inherent in the spacing devices heretofore known and used in the art.
  • Another object of the invention is the provision of an improved supporting and spacing element for concrete reinforcements of the referred to type which, while being simple in design and construction, may be applied or mounted readily and expenditiously in the carrying out of the concrete construction work or operations.
  • FIG. 1 is a fragmentary perspective view of a reinforcing mat structure supported by a concrete spacing element constructed in accordance with the principles of the invention
  • FIGS. 2 and 3 are cross-sections through a concrete supporting element showing alternative structural embodiments of the invention.
  • FIG. 4 is a partial cross-section through a complete concrete floor or the like structure embodying the improved spacing and supporting means of the invention.
  • the improved sup porting and spacing element for concrete reinforcing mats to be embodied in a floor or the like structure consists essentially of a flat oblong concrete slab of a length in excess of a multiple of the rod spacing distance of the mat to be supported.
  • a plurality of elements of constant thickness are distributed over the forming surface of the concrete floor, etc. with one of their flat faces overlying said surface and with their remaining flat face collectively providing a support for the mat to be embodied in said floor, said elements being further designed to remain permanently embedded or locked in the floor upon pouring and curing of the concrete.
  • the slabs may be irregularly applied to the concrete forming surface, such as by simply throwing or tossing the same upon said surface, it being immaterial for the achievement of the desired (spacing) effect whether the slabs are arranged in rows or any other regular arrangements, provided they are more or less evenly distributed over said surface.
  • At least the longitudinal or side edge portions of the slabs are constructed of wedge-shaped cross-section, in such a manner as to substantially prevent loosening or dropout from the surrounding concrete, or to improve the allover appearance of the structures, in the manner as will become further apparent as the description proceeds in reference to the drawing.
  • the supporting and spacing element 1 takes the form of a relatively flat and oblong concrete element or slab which may be fabricated in quantities and supplied to the user in sufficient numbers together with the supply of the mats or the like reinforcing structures consisting, for instance, of two sets of steel rods or bars 2 and 3 intersecting each other at right angles and being connected at their intersection points, in a manner well known and shown in the drawing.
  • the thickness or spacing distance between the parallel supporting surfaces 9 of the slab 1, which has a length in excess of a multiple of the spacing distance of the rods 2 to be supported, depends upon the desired distance of the mat 2, 3 from the outer surface of the concrete body to be reinforced (floor, ceiling, etc.), or surface of the form work 5 being later removed upon pouring and setting of the concrete 4, FIG. 4.
  • the length of the element 1 is advantageously such as to support two to three adjacent rods 2, in the example shown, while leaving a sufiicient overlap beyond the rods being supported, as shown in the drawing.
  • the dimensions, in particular the width of the elements 1 may be such as to be not or only slightly discernible upon being embedded in the surrounding concrete 4, FIG. 4, of the floor, ceiling or the like body or structure.
  • the spacing or supporting slabs 1 may be distributed in irregular fashion over the forming surface 5, it being practically unnecessary to arrange the slabs in rows or any regular fashion, any random positioning or distribution thereof being suificient to ensure the desired spacing effect for the mat 2, 3.
  • the supporting slabs 1 may in turn be fitted with suitable reinforcing means, such as in the form of one or more longitudinal steel rods or wires 6, embedded therein to prevent breakage as a result of rough handling in connection with the concrete construction work or upon being thrown upon the formwork or surface 5, in the manner pointed out.
  • suitable reinforcing means such as in the form of one or more longitudinal steel rods or wires 6, embedded therein to prevent breakage as a result of rough handling in connection with the concrete construction work or upon being thrown upon the formwork or surface 5, in the manner pointed out.
  • the wires 6 may in turn be connected by cross-rods, to form an auxiliary mat reinforcing the slabs.
  • a proper design of the supporting slabs 1 in accordance with the invention serves to substantially prevent loosening or dropout of the slabs by both firmly embedding and locking the same in the surrounding concrete, as shown in FIG. 4.
  • the side and end portions of the slabs are of wedge-shaped crosssection, whereby to provide a pair of longitudinal or side edge surfaces 8a and 81) forming angles greater than, FIG. 2, or less than, FIG. 3, a right angle with the adjoining supporting surfaces 9 of the slab.
  • the wedge surfaces 8a and 8b extend outwardly from the sides of the slab, while according to the FIG. 3 construction the surfaces 8a: and 8b extend in an inward direction from said sides, in such a manner as to result in a firm locking or anchoring of the slabs in the concrete body or structure 4, FIG. 4.
  • FIG. 4 In the same manner may be constructed the short edge or end faces 7 of the slabs, as shown in FIG. 1.
  • An advantage of a symmetrical cross-section of the slab 1, as shown by the drawings, is due to the fact that, irrespective of which of the supporting surfaces 9 is in the up or down position upon tossing the slabs upon the surface 5, the mounting in or adhesion of the slab to the concrete remains the same. Furthermore, it has been found that slabs having a regular or symmetrical cross-section can be fabricated with greater case than bodies of irregular shape or cross-section.
  • the edge surfaces 8a and 8b form angles 10 greater than a right angle with the adjoining supporting surfaces 9 of the slab or, in other words, the slab is composed of a pair of identicalv trapezoids arranged with their base planes coinciding-with a common plane and with their top planes acting as supporting surfaces of the slab.
  • the partial edge surfaces-8a and 8b form angles 10 with the surfaces 9 being less than a right angle, whereby the slab is composed of a pair of identical trapezoids arranged with their top planes coinciding with a common plane and with their base surfaces acting as supporting surfaces of the slab.
  • the edge surfaces 8a and 8b intersect one another'along lines being parallel to the adjacent edges of the slabs. In either case, there is achieved the desired anchoring effect of the slabs in the surrounding concrete 4, as shown in FIG. 4.
  • the reinforcing wire 6 may be extended beyond the short edges of the slabs for connection with the reinforcements, if desirable.
  • the slabs may be used as spacing means in connection with vertical reinforcements for concrete walls by simply reversely bending the projecting ends 11 of the wires 6, to form hooks for connection with a wire or rod 3 of the main reinforcing structure, as shown in FIG. 4.
  • the same arrangement may, of course, be used in connection with horizontal structures, such as floors, ceilings, etc.
  • a reinforced concrete slab embodying a reinforcing mat composed of two sets of parallel reinforcing rods intersecting one another with the rods of one set connected to the rods of the other set at the intersection points of the rods, to provide a self-contained structure, spacing means to maintain said mat at a predetermined distance from a planar concrete surface for said slab prior to and during pouring of the concrete, comprising:
  • said hooks adapted to secure the reinforcing wires to a rod of said mat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
US508056A 1964-11-21 1965-11-16 Supporting means for concrete reinforcements Expired - Lifetime US3460309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0079427 1964-11-21

Publications (1)

Publication Number Publication Date
US3460309A true US3460309A (en) 1969-08-12

Family

ID=6980295

Family Applications (1)

Application Number Title Priority Date Filing Date
US508056A Expired - Lifetime US3460309A (en) 1964-11-21 1965-11-16 Supporting means for concrete reinforcements

Country Status (10)

Country Link
US (1) US3460309A (de)
AT (1) AT270965B (de)
BE (1) BE672447A (de)
CH (1) CH436651A (de)
DE (1) DE1484140A1 (de)
DK (1) DK122406B (de)
GB (1) GB1122035A (de)
LU (1) LU49827A1 (de)
NL (1) NL6514951A (de)
NO (1) NO120756B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942060C2 (de) * 1989-11-21 1998-10-29 Frank Gmbh & Co Kg Max Abstandhalter
USD422884S (en) * 1998-04-08 2000-04-18 Luc Lafond Spacer
US20070209310A1 (en) * 2006-03-08 2007-09-13 Papke & Sons Enterprises, Inc. Solid, reinforced and pre-wired rebar support apparatus
US11098488B2 (en) * 2017-09-28 2021-08-24 Toyoda Architects Office Rebar spacer
RU226079U1 (ru) * 2024-03-14 2024-05-21 Анатолий Анатольевич Оленев Бетонный фиксатор для защитного слоя арматуры

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207074A1 (de) * 1985-01-02 1987-01-07 HOFMAN, Per Ortungsglied
EP0353560A1 (de) * 1988-07-29 1990-02-07 Max Frank GmbH & Co. KG Abstandshalter für Betonarmierungen
DE4120215C2 (de) * 1991-06-19 1996-04-11 Siegfried Dreizler Verfahren zum Herstellen eines Abstandhalters für Bewehrungen und Abstandhalter
DE102008012920A1 (de) * 2008-03-06 2009-09-17 Böckmann, Gerhard Abstandshalter für die Bewehrung eines mittels einer Schalung herzustellenden Betonteils
DE102015105589A1 (de) * 2015-03-06 2016-09-08 Bag Bauartikel Gmbh Verfahren zur Herstellung eines Betonabstandhalterkörpers

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US902204A (en) * 1907-02-01 1908-10-27 F W William Brown Concrete construction.
US1070921A (en) * 1912-07-16 1913-08-19 John T Saltiel Concrete building construction.
US1350335A (en) * 1920-04-23 1920-08-24 George H Reed Support for reinforcing-rods
US1946418A (en) * 1932-10-03 1934-02-06 Edward E Welch Support for concrete reenforcing steel
CA463617A (en) * 1950-03-07 F. Rea Robert Cold-storage plant floor
GB743129A (en) * 1952-12-01 1956-01-11 William Griffiths & Co Ltd Improvements in or relating to the supporting of reinforcing bars and rods in the manufacture of concrete products
US3233383A (en) * 1962-06-07 1966-02-08 Salm Mathias Spacing support for reinforcing bars
US3286603A (en) * 1959-03-16 1966-11-22 Dyckerhoff & Widmann Ag Concrete roadway

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA463617A (en) * 1950-03-07 F. Rea Robert Cold-storage plant floor
US902204A (en) * 1907-02-01 1908-10-27 F W William Brown Concrete construction.
US1070921A (en) * 1912-07-16 1913-08-19 John T Saltiel Concrete building construction.
US1350335A (en) * 1920-04-23 1920-08-24 George H Reed Support for reinforcing-rods
US1946418A (en) * 1932-10-03 1934-02-06 Edward E Welch Support for concrete reenforcing steel
GB743129A (en) * 1952-12-01 1956-01-11 William Griffiths & Co Ltd Improvements in or relating to the supporting of reinforcing bars and rods in the manufacture of concrete products
US3286603A (en) * 1959-03-16 1966-11-22 Dyckerhoff & Widmann Ag Concrete roadway
US3233383A (en) * 1962-06-07 1966-02-08 Salm Mathias Spacing support for reinforcing bars

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942060C2 (de) * 1989-11-21 1998-10-29 Frank Gmbh & Co Kg Max Abstandhalter
USD422884S (en) * 1998-04-08 2000-04-18 Luc Lafond Spacer
US20070209310A1 (en) * 2006-03-08 2007-09-13 Papke & Sons Enterprises, Inc. Solid, reinforced and pre-wired rebar support apparatus
US11098488B2 (en) * 2017-09-28 2021-08-24 Toyoda Architects Office Rebar spacer
RU226079U1 (ru) * 2024-03-14 2024-05-21 Анатолий Анатольевич Оленев Бетонный фиксатор для защитного слоя арматуры

Also Published As

Publication number Publication date
DK122406B (da) 1972-02-28
NL6514951A (de) 1966-05-23
AT270965B (de) 1969-05-12
NO120756B (de) 1970-11-30
BE672447A (de) 1966-03-16
DE1484140A1 (de) 1969-02-13
GB1122035A (en) 1968-07-31
LU49827A1 (de) 1966-01-12
CH436651A (de) 1967-05-31

Similar Documents

Publication Publication Date Title
US4598523A (en) Reinforcement support spacer
US4067156A (en) Computer floor structure
US4223501A (en) Concrete form
US4996816A (en) Support for elongate members in a poured layer
US3693310A (en) Support for elongated reinforcing members in concrete structures
US4498270A (en) Support for positioning reinforcing rods or mesh in concrete or the like
US3228161A (en) Concrete wall panel building construction
GB1284402A (en) Improvements in and relating to building constructions
US3460309A (en) Supporting means for concrete reinforcements
US3342003A (en) Mesh reenforcement with spacer for cementitious material
US3302360A (en) Method of reinforcing concrete floors and the like, and a reinforcing element therefor
US3430407A (en) Spacer members for use in reinforced structures
US3623289A (en) Flexible spacing device for concrete reinforcing materials
US3378981A (en) Chair for concrete reinforcing
US3233383A (en) Spacing support for reinforcing bars
US3172238A (en) Anchor bolt clip for masonry construction
US1953203A (en) Building construction
US3693311A (en) Reinforcement elements for concrete structures
US2127914A (en) Composition building block
EP0031167A2 (de) Verfahren und Form zum Herstellen eines Betonbodens
DE901340C (de) Fuellstein, insbesondere fuer Decken
US1365125A (en) Spacing device for reinforcing-bars in concrete
US3444663A (en) Support means for expanded metal mesh
DE531690C (de) Hohlstein fuer Rippenbetondecken
US2496872A (en) Building block with spaced slabs