CA2097035A1 - Spacer for reinforcing elements - Google Patents
Spacer for reinforcing elementsInfo
- Publication number
- CA2097035A1 CA2097035A1 CA002097035A CA2097035A CA2097035A1 CA 2097035 A1 CA2097035 A1 CA 2097035A1 CA 002097035 A CA002097035 A CA 002097035A CA 2097035 A CA2097035 A CA 2097035A CA 2097035 A1 CA2097035 A1 CA 2097035A1
- Authority
- CA
- Canada
- Prior art keywords
- spacer
- bearers
- web
- reinforcing elements
- bearer
- 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.)
- Abandoned
Links
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
-
- 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
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)
- Assembled Shelves (AREA)
Abstract
Abstract of the Disclosure The spacer for reinforcing elements in concrete constructions comprises a profiled beam with a number of bearers slipped thereon. Each one of said bearers is in the form of an A in the lateral view and is pro-vided in its upper portion with a transversal web in order to form an inserting opening for said beam.
Said beam has a double-T profile having a web which is provided at its foot end with a larger foot flange and in its upper half with a transversal flange having a somewhat greater length than the inner width of said inserting opening at that point, and whose head serves as a supporting surface for said reinforcing elements.
Such a spacer provides a great stability and can be manufactured with relatively little expenditure and material. Moreover, the upper portion of said bearers serves as an abutment for a precise layout of said re-inforcing elements.
(SE/as 06.05.93)
Said beam has a double-T profile having a web which is provided at its foot end with a larger foot flange and in its upper half with a transversal flange having a somewhat greater length than the inner width of said inserting opening at that point, and whose head serves as a supporting surface for said reinforcing elements.
Such a spacer provides a great stability and can be manufactured with relatively little expenditure and material. Moreover, the upper portion of said bearers serves as an abutment for a precise layout of said re-inforcing elements.
(SE/as 06.05.93)
Description
20~7~3a SPACER FOR REINFORCING ELEMENTS
The present invention refers to a spacer for re-inforcing elements in concrete constructions, compris-ing a profiled beam which is held by at least twobearers, said bearers being capable of being slipped onto said beam and being attached thereto. Such spacers are usually used for the manufacture of con-crete coverings such as floors or ceilings and serve as a rest for the reinforcing rods. Said spacers must offer of secure support of the reinforcing elements, and in particular, they are also subject to a tread load when someone walks on said reinforcement ele-ments. The frequently used metal spacers gradually fail to meet the tougher requirements with respect to corrosion resistance, so that spacers made of plastics materials increasingly prevail.
When plastics spacers are used, the stability and the rational manufacture of the parts is increasingly important. DE-U-90 00 367 discloses a spacer accord-ing to the preamble of claim 1 which is entirely made of plastics material and whose bearers are capable of being clamped to the T-beam, possibly also on site.
On one hand, the elastic spreading of the head por-tions of the bearers limits the choice of the plastics materials to be used, and on the other hand, the pos-sibility of attaching the bearers on site requires a measuring scale on the beam as both the bearers and the reinforcing elements have to be distributed as evenly as possible.
By contrast, it is the object of the present in-vention to provide a spacer which can be manufactured (SE/as 06.05.93) .
~.
- ~ ,, 209703~
rationally with a high stability and fsr high tread loads. This object is attained by a spacer wherein each bearer is in the shape of an A in the lateral view and is provided in its upper part with a trans-versal web in order to form an inserting opening forsaid beam, and wherein said beam has a double T pro-file comprising a web whose foot end is provided with a larger foot flange and whose upper half is provided with a transverse flange having a somewhat greater length than the inner width of said inserting opening at that point, and whose head serves as a supporting surface for said reinforcing elements.
In many concrete constructions, the concrete cover is poured in such a manner that the underside of the spacers becomes visible. In the case of many con-crete coverings which are subsequently coated, either by a coat of paint or by mortar or the like, this is of no importance, whereas it is inacceptable in con-crete constructions which are not to be furthercoated. Consequently, in a further embodiment of the invention, the lower portion of said bearer is cast in concrete up to its transversal web.
The invention will be explained in more detail hereinafter with reference to a drawing of embodi-ments.
Fig. 1 shows a part of the beam of the invention in a perspective view;
Fig. 2 shows a bearer of the invention in a per-spective view;
Fig. 3 shows a cross-section of a lateral wall of the bearer of Fig. 2;
tSE/as 06.05.93) 2n~7~3~ -Fig. 4 shows the beam inserted in a bearer in a perspective view; and Fig. 5 shows a second embodiment of a bearer of the invention.
Beam 1 according to Fig. 1 has a double-T pro-file, said beam being represented upside down in Fig.
1 and also being used in this way. Said double-T pro-file consists of a web 2 which is provided at its f¢ot end with larger base or foot flange 3 and in its upper half with narrower transversal flange 4. Head portion 5 of said web forms a supporting surface for the rein-forcing elements. Beam 1 can be rationally manufac-tured from a suitable plastics material.
According to Fig. 2, bearer 6, as seen from the side, has the form of a big A and is provided approxi-mately in its middle with a transversal web 7, the upper portion of said bearer thus forming an inserting opening 8 for beam 1. Both base flange 3 and trans-versal flange 4 are adapted in length to inserting opening 8, transversal flange 4 having a somewhat greater length than the inner width of inserting open-ing 8 at that point. In this manner~ a clamping ef-fect is obtained which prevents a free displacement ofsaid bearer on the beam but which allows to slide it on without excessive resistance, on the other hand.
Slipping on the bearers, which may be effected auto-matically, is further facilitated by the fact that the upper side 9 of the three walls 7 and 13 of said in-serting opening, as seen in the lengthwise direction of the beam, is not flat but tapered off towards both sides of the bearer (see Fig. 3).
(SE/as 06.05.93) :
~, . . .
The present invention refers to a spacer for re-inforcing elements in concrete constructions, compris-ing a profiled beam which is held by at least twobearers, said bearers being capable of being slipped onto said beam and being attached thereto. Such spacers are usually used for the manufacture of con-crete coverings such as floors or ceilings and serve as a rest for the reinforcing rods. Said spacers must offer of secure support of the reinforcing elements, and in particular, they are also subject to a tread load when someone walks on said reinforcement ele-ments. The frequently used metal spacers gradually fail to meet the tougher requirements with respect to corrosion resistance, so that spacers made of plastics materials increasingly prevail.
When plastics spacers are used, the stability and the rational manufacture of the parts is increasingly important. DE-U-90 00 367 discloses a spacer accord-ing to the preamble of claim 1 which is entirely made of plastics material and whose bearers are capable of being clamped to the T-beam, possibly also on site.
On one hand, the elastic spreading of the head por-tions of the bearers limits the choice of the plastics materials to be used, and on the other hand, the pos-sibility of attaching the bearers on site requires a measuring scale on the beam as both the bearers and the reinforcing elements have to be distributed as evenly as possible.
By contrast, it is the object of the present in-vention to provide a spacer which can be manufactured (SE/as 06.05.93) .
~.
- ~ ,, 209703~
rationally with a high stability and fsr high tread loads. This object is attained by a spacer wherein each bearer is in the shape of an A in the lateral view and is provided in its upper part with a trans-versal web in order to form an inserting opening forsaid beam, and wherein said beam has a double T pro-file comprising a web whose foot end is provided with a larger foot flange and whose upper half is provided with a transverse flange having a somewhat greater length than the inner width of said inserting opening at that point, and whose head serves as a supporting surface for said reinforcing elements.
In many concrete constructions, the concrete cover is poured in such a manner that the underside of the spacers becomes visible. In the case of many con-crete coverings which are subsequently coated, either by a coat of paint or by mortar or the like, this is of no importance, whereas it is inacceptable in con-crete constructions which are not to be furthercoated. Consequently, in a further embodiment of the invention, the lower portion of said bearer is cast in concrete up to its transversal web.
The invention will be explained in more detail hereinafter with reference to a drawing of embodi-ments.
Fig. 1 shows a part of the beam of the invention in a perspective view;
Fig. 2 shows a bearer of the invention in a per-spective view;
Fig. 3 shows a cross-section of a lateral wall of the bearer of Fig. 2;
tSE/as 06.05.93) 2n~7~3~ -Fig. 4 shows the beam inserted in a bearer in a perspective view; and Fig. 5 shows a second embodiment of a bearer of the invention.
Beam 1 according to Fig. 1 has a double-T pro-file, said beam being represented upside down in Fig.
1 and also being used in this way. Said double-T pro-file consists of a web 2 which is provided at its f¢ot end with larger base or foot flange 3 and in its upper half with narrower transversal flange 4. Head portion 5 of said web forms a supporting surface for the rein-forcing elements. Beam 1 can be rationally manufac-tured from a suitable plastics material.
According to Fig. 2, bearer 6, as seen from the side, has the form of a big A and is provided approxi-mately in its middle with a transversal web 7, the upper portion of said bearer thus forming an inserting opening 8 for beam 1. Both base flange 3 and trans-versal flange 4 are adapted in length to inserting opening 8, transversal flange 4 having a somewhat greater length than the inner width of inserting open-ing 8 at that point. In this manner~ a clamping ef-fect is obtained which prevents a free displacement ofsaid bearer on the beam but which allows to slide it on without excessive resistance, on the other hand.
Slipping on the bearers, which may be effected auto-matically, is further facilitated by the fact that the upper side 9 of the three walls 7 and 13 of said in-serting opening, as seen in the lengthwise direction of the beam, is not flat but tapered off towards both sides of the bearer (see Fig. 3).
(SE/as 06.05.93) :
~, . . .
2~7a35 Lateral web 7 is followed on its underside by two legs 10 which are provided in the present example with a respective center wall 11 in order to increase their stability. A connecting web 12 between the two legs further contributes to increased stability. This hol-low box construction with struts results in a high stability, on one hand, and allows to save material, on the other.
In the present embodiment according to Figs. 1 to 3, a given spacer having a certain distance between the non-represented shuttering panels and the non-represented reinforcing elements has been represented, inserting opening 8 and the legs having approximately the same height. It is understood that in the field of construction, different distances have to be ob-served, the same beam being used in the present spacer for all distances between the shuttering and the rein-forcing elements, which calls for an identical insert-ing opening 8, while the length of the legs 10 can bemanufactured according to the desired and required lengths in order to provide the generally standardized heights of the spacers. Due to the particularly stable construction of the bearers it is possible to use recycled plastics for their manufacture.
In Eig. 4, two bearers have been slipped onto a beam, and it appears that the enclosure of the beams in the inserting opening of the bearers results in a precise layout of the reinforcing elements as a pre-cise grid for the reinforcing elements results from the fact that the bearers are placed at a precise mutual distance D at the factory, and their layout is (SE/as 06.05.93~
20~733~
further facilitated by the abutments which are formed by the upper sides 14 of the bearers.
As already mentioned in the introduction, there are buildings where a visibility of the underside of the bearers is not desirable or not permitted. For such cases, the lower portion of bearer 15 is cast in and filled with concrete 16 according to the embodi-ment of Fig. 5. This concrete not only allows a very good bond between the spacer and the concrete con-struction, but also an extensive adaptation to the latter whereby the underside of the spacer dis-tinguishes itself only little or not at all from the building under construction. In addition to these ad-vantages, a spacer having bearers with a concrete baseprovides an extended safety with respect to increased tread loads.
(SE/as 06.05.93) , .
~ ,,
In the present embodiment according to Figs. 1 to 3, a given spacer having a certain distance between the non-represented shuttering panels and the non-represented reinforcing elements has been represented, inserting opening 8 and the legs having approximately the same height. It is understood that in the field of construction, different distances have to be ob-served, the same beam being used in the present spacer for all distances between the shuttering and the rein-forcing elements, which calls for an identical insert-ing opening 8, while the length of the legs 10 can bemanufactured according to the desired and required lengths in order to provide the generally standardized heights of the spacers. Due to the particularly stable construction of the bearers it is possible to use recycled plastics for their manufacture.
In Eig. 4, two bearers have been slipped onto a beam, and it appears that the enclosure of the beams in the inserting opening of the bearers results in a precise layout of the reinforcing elements as a pre-cise grid for the reinforcing elements results from the fact that the bearers are placed at a precise mutual distance D at the factory, and their layout is (SE/as 06.05.93~
20~733~
further facilitated by the abutments which are formed by the upper sides 14 of the bearers.
As already mentioned in the introduction, there are buildings where a visibility of the underside of the bearers is not desirable or not permitted. For such cases, the lower portion of bearer 15 is cast in and filled with concrete 16 according to the embodi-ment of Fig. 5. This concrete not only allows a very good bond between the spacer and the concrete con-struction, but also an extensive adaptation to the latter whereby the underside of the spacer dis-tinguishes itself only little or not at all from the building under construction. In addition to these ad-vantages, a spacer having bearers with a concrete baseprovides an extended safety with respect to increased tread loads.
(SE/as 06.05.93) , .
~ ,,
Claims (4)
1. A spacer for reinforcing elements in concrete constructions, comprising a profiled beam which is held by at least two bearers, said bearers being capable of being slipped onto said beam and being joined thereto, wherein each bearer is in the shape of an A in the lateral view and is provided in its upper part with a tranversal web in order to form an insert-ing opening for said beam, and wherein said beam has a double-T profile comprising a web whose root end is provided with a larger foot flange and whose upper half is provided with a transverse flange having a somewhat greater length than the inner width of said inserting opening at that point, and whose head serves as a supporting surface for said reinforcing elements.
2. The spacer of claim 1, wherein said inserting opening is followed by two legs which are each pro-vided with a longitudinal wall which is disposed in the center thereof and which are joined together by a connecting web.
3. The spacer of claim 1, wherein the internal surfaces of said inserting opening, as seen in the lengthwise direction of said beam, taper off towards both external sides of said bearer in order to facili-tate the insertion of said beam.
4. The spacer of claim 1, wherein the lower por-tion of said bearer is cast in concrete.
(SE/as 06.05.93)
(SE/as 06.05.93)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92810436A EP0573723A1 (en) | 1992-06-09 | 1992-06-09 | Reinforcement spacer |
| EP92810436.3 | 1992-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2097035A1 true CA2097035A1 (en) | 1993-12-10 |
Family
ID=8211935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002097035A Abandoned CA2097035A1 (en) | 1992-06-09 | 1993-05-26 | Spacer for reinforcing elements |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0573723A1 (en) |
| JP (1) | JPH0673841A (en) |
| KR (1) | KR940000697A (en) |
| CN (1) | CN1080013A (en) |
| AU (1) | AU658734B2 (en) |
| CA (1) | CA2097035A1 (en) |
| FI (1) | FI932602A (en) |
| NO (1) | NO932087L (en) |
| ZA (1) | ZA933424B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352532C (en) | 1996-03-05 | 2007-12-05 | 世嘉企业股份有限公司 | Controller and expansion unit for controller |
| FR2764922A1 (en) * | 1997-06-24 | 1998-12-24 | Gaston Michel | Reinforcement spacer for reinforced concrete |
| KR100767566B1 (en) * | 2006-12-29 | 2007-10-17 | 주식회사 동우 이앤씨 건축사사무소 | Steel reinforcing for spacer |
| CN101235664B (en) * | 2007-01-23 | 2010-09-29 | 美国德信公司 | Slab bolster couping |
| DE202009011003U1 (en) * | 2009-09-15 | 2011-02-10 | Max Frank Gmbh & Co. Kg | Spacers for a reinforcement in reinforced concrete construction |
| CN103114682B (en) * | 2013-02-19 | 2014-12-10 | 青岛宝基利工程技术咨询有限公司 | Fabricated part for delaying corrosion of works corner steel and use method of fabricated part |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7329839U (en) * | 1973-11-22 | Hoff W | Spacers for reinforcement elements of concrete structures | |
| DE2842426A1 (en) * | 1978-09-29 | 1980-04-17 | Zirks Werner Richard | Concrete reinforcing bar spacer block - has locking members fixed in its own foot which is of concrete and bears against formwork |
| US4682461A (en) * | 1986-03-31 | 1987-07-28 | Winston C. Sizemore | Support for reinforcing bar |
| CH674538A5 (en) * | 1987-01-24 | 1990-06-15 | Ankaba Ag | Concrete distance-piece - comprises concrete blocks moulded onto plastics rail and adhering to it |
-
1992
- 1992-06-09 EP EP92810436A patent/EP0573723A1/en not_active Ceased
-
1993
- 1993-05-17 ZA ZA933424A patent/ZA933424B/en unknown
- 1993-05-17 AU AU38602/93A patent/AU658734B2/en not_active Expired - Fee Related
- 1993-05-26 CA CA002097035A patent/CA2097035A1/en not_active Abandoned
- 1993-05-31 CN CN93106489A patent/CN1080013A/en active Pending
- 1993-06-07 KR KR1019930010196A patent/KR940000697A/en not_active Application Discontinuation
- 1993-06-07 FI FI932602A patent/FI932602A/en not_active Application Discontinuation
- 1993-06-08 NO NO932087A patent/NO932087L/en unknown
- 1993-06-08 JP JP5137815A patent/JPH0673841A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU658734B2 (en) | 1995-04-27 |
| FI932602A (en) | 1993-12-10 |
| ZA933424B (en) | 1994-09-23 |
| AU3860293A (en) | 1993-12-16 |
| JPH0673841A (en) | 1994-03-15 |
| NO932087D0 (en) | 1993-06-08 |
| CN1080013A (en) | 1993-12-29 |
| FI932602A0 (en) | 1993-06-07 |
| EP0573723A1 (en) | 1993-12-15 |
| NO932087L (en) | 1993-12-10 |
| KR940000697A (en) | 1994-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |