WO2008069739A1 - Heat -insulating edge element and method for attaching a plate - Google Patents

Heat -insulating edge element and method for attaching a plate Download PDF

Info

Publication number
WO2008069739A1
WO2008069739A1 PCT/SE2007/050877 SE2007050877W WO2008069739A1 WO 2008069739 A1 WO2008069739 A1 WO 2008069739A1 SE 2007050877 W SE2007050877 W SE 2007050877W WO 2008069739 A1 WO2008069739 A1 WO 2008069739A1
Authority
WO
WIPO (PCT)
Prior art keywords
thermally insulating
insulating part
plate
edge element
attaching
Prior art date
Application number
PCT/SE2007/050877
Other languages
French (fr)
Inventor
Mats Karlin
Torbjörn SKÅNBERG
Original Assignee
Sundolitt Ab
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 Sundolitt Ab filed Critical Sundolitt Ab
Publication of WO2008069739A1 publication Critical patent/WO2008069739A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations
    • E02D27/02—Flat foundations without substantial excavation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations

Definitions

  • the present invention relates to an edge element to surround building cast-in-situ concrete foundations, the edge element comprising a heat-insulating part consisting of cellular plastic and an external plate protecting the heat-insulating part.
  • the edge element In the casting of building foundations, the edge element is in ⁇ tended to constitute the outer limit of the foundation and the external plate is intended to constitute a protection for the edge beam element against weather and wind.
  • a heat-insulating part of cellular plastic as an outer border form wall in casting, wherein a plate of, for instance, reinforced concrete rendering, or of some other stiff and thin material is applied externally of the cellular plas ⁇ tic, is generally recognized in the art.
  • the plate is adhered to the cellular plastic by means of glue.
  • glue is susceptible to, e.g., such conditions as air, moisture, heat and the state of the cellular plastic. Upon weather changes, certain motion between the plate and the cellular plastic will take place, and therefore the glue is subjected to great stresses. In the case of great motions, the glue will release, wherein the plate may come loose from the thermally insulating layer .
  • edge element consisting of an insulat ⁇ ing part of, for instance, cellular plastic, on the outside of which a structural layer of, for instance, asbestos cement is arranged.
  • the edge element is either produced by folding the structural layer around the upper and lower part, respectively, of the insulating part, or by pressing the insulating part through a ready-formed structural layer. Irrespective of which method used, the production of the edge element will require much work before it is ready to be used.
  • the object of the present invention is to provide a de ⁇ vice and a method that solve the above-mentioned problems. Said object is attained by means of a device and a method having the features defined in the independent claims.
  • Fig. 1 shows a protecting external plate attached to a thermally insulating part according to a preferred embodiment
  • Fig. 2 shows an exploded diagram of the embodiment of Fig. 1
  • Fig. 3 shows a protecting external plate attached to a ther ⁇ mally insulating part according to an alternative embodiment
  • Fig. 4 shows the embodiment of Fig. 3, as seen from another perspective;
  • FIG. 5 shows how the protecting external plate is attached to a thermally insulating part according to the embodiment of Fig. 3
  • Fig. 6 shows how the protecting external plate is attached to a thermally insulating part according to the embodiment of Fig. 3;
  • Fig. 7 shows a protecting external plate attached to a thermally insulating part according to yet an alternative embodiment
  • Fig. 8 shows an exploded diagram of an interconnection of two thermally insulating parts at corners
  • Fig. 9 shows two thermally insulating parts that have been interconnected and forming a corner.
  • Fig. 1 shows a heat-insulating edge beam 1 consisting of a protecting external plate 2 attached to a thermally insulating part 3 according to a preferred embodiment of the present invention
  • Fig. 2 shows an exploded diagram of the embodiment of Fig. 1.
  • the plate 2 is arranged in a slot 4 in the thermally insulating part 3.
  • the slot 4 has substantially the same thickness as the width of the plate and runs preferably along the entire length of the thermally insulating part 3.
  • the plate will be fixed between the internal portion 3a of the thermally insulating part 3 and a portion 3b that protrudes externally of the plate 2.
  • the plate is kept in place by a strip 5, which clamps the plate 2 against the thermally insulating part 3.
  • the thermally insulating part When the thermally insulating part has the design shown in the figure, it is suitable to use a U-shaped strip 5.
  • the strip 5 should be manufactured from a hard and thin material that, however, has certain flexibility, for in ⁇ stance rigid plastic or metal. Thereby, the strip also constitutes a protection against impacts and weather on the upper side of the thermally insulating part 3.
  • the strip 5 extends along the entire length of the thermally insulating part 3, but may also consist of a plurality of smaller strip portions arranged at a distance from each other.
  • the inside 5a of the strip is preferably provided with holes so that the concrete that will abut against the strip 5 also will contact the cellular plastic inside the strip 5.
  • one or more slots could also be arranged vertically instead of horizontally. If no horizontal slot is arranged at the bottom, the vertical slots should at the bottom be provided with some form of stop that prevents the plate from running down further than desirable. Irrespective of whether the slots are arranged horizontally or vertically, the same may extend along substantially the entire height or width of the edge element, or alternatively be divided into a plurality of short slot portions that keep the plate in place.
  • Figs. 3-6 show different views of a heat-insulating edge beam 1 consisting of a protecting external plate 2 attached to a thermally insulating part 3 according to an alternative embodiment of the present invention.
  • the plate 2 is attached to the thermally insulating part 3 by means of one or more at ⁇ tachment strips 6.
  • One part 6a of an attachment strip is arranged to be pressed into the underside of the thermally insu ⁇ lating part 3 and thereby attach the U-shaped attachment strip 6 to the thermally insulating part 3.
  • the attachment part 6a of the strip 6 is preferably formed in such a way that it easily penetrates the cellular plastic, but that it is more difficult to remove it from the cellular plastic once it is fastened.
  • the plate is kept in place by a strip 7 that clamps the plate 2 against the thermally insulating part 3.
  • a strip 7 the design of which is best shown in Fig. 6.
  • a number of attachment members 7a, 7b are arranged on the internal side of the strip 7. Some of the attachment members 7a are arranged to penetrate the edge element 3 and some of the attachment members 7b are arranged to abut against the edge element 3.
  • the abutting attachment members are provided with holes so that concrete later on attaches the strip 7.
  • Fig. 7 shows two protecting external plates 2, which are attached to thermally insulating parts 3 according to yet an alternative embodiment of the present invention.
  • One of the plates 2 (the one to the left in the picture) is attached according to what is described in Figs. 1 and 2.
  • the other plate 2 (the one to the right in the picture) is provided with holes 8 in the lower part thereof.
  • attachment members 9 similar to plugs, are pressed in and penetrate the cellular plastic of the thermally insulating part 3 and secure the lower part of the plate 2 against the thermally insulating part.
  • the plate is secured by a strip according to the previously described design.
  • Fig. 8 shows a way to interconnect two thermally insulating parts in connection with a corner.
  • the ends of the edge elements 3, in the form of L-elements, are provided with holes 10.
  • a connecting edge element 3' is provided with a profile adapted ac ⁇ cording to the profile of the L-element 3 and also provided with projections 11 to be arranged in the holes 10 of the L-elements.
  • Fig. 9 shows how two edge elements 3, 3' have been inter ⁇ connected after which plates 2 have been attached externally of the edge elements 3, 3' by means of one or some of the previously described fastening techniques.
  • the strips 5 at the top of the edge elements 3, 3' may for instance be obliquely cut or be angled in the corners. If the strips are angled in the corners, they also assist when interconnecting the edge elements to each other.
  • the strips may be continuous or divided into smaller lengths.
  • the thickness of the strip may vary but is preferably less than 5 mm.
  • the plate does not need to be entirely smooth as in the figures, but may contain projections or the like.
  • the plate 2 may be formed to surround the upper part of the thermally insulating part 3 and in such a way "be suspended" on the thermally insulating part without an upper strip having to be used.
  • the protecting plate 2 comprises a part that extends around an upper portion of the thermally insulating part 3 and down a bit on the inside 3a of the thermally insulating part, preferably approximately as far as the strip 5 extends in Figs. 1 and 2.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

The present invention relates to a heat-insulating edge beam (1) to surround building cast-in-situ concrete foundations. The edge element (1) comprises a thermally insulating layer (3) consisting of cellular plastic and an external plate (2) protecting the thermally insulating layer. The protecting plate (2) is attached to the thermally insulating layer (3) in the lower and/or upper part of the plate by means of separate attachment members (4, 5, 6, 7, 9). The invention also relates to a method for attaching a plate (2) on the outside of a thermally insulating layer (3).

Description

HEAT-INSULATING EDGE ELEMENT AND METHOD FOR ATTACHING A PLATE
Technical Field
The present invention relates to an edge element to surround building cast-in-situ concrete foundations, the edge element comprising a heat-insulating part consisting of cellular plastic and an external plate protecting the heat-insulating part. In the casting of building foundations, the edge element is in¬ tended to constitute the outer limit of the foundation and the external plate is intended to constitute a protection for the edge beam element against weather and wind.
Prior Art
The use of a heat-insulating part of cellular plastic as an outer border form wall in casting, wherein a plate of, for instance, reinforced concrete rendering, or of some other stiff and thin material is applied externally of the cellular plas¬ tic, is generally recognized in the art. Usually, the plate is adhered to the cellular plastic by means of glue. However, glue is susceptible to, e.g., such conditions as air, moisture, heat and the state of the cellular plastic. Upon weather changes, certain motion between the plate and the cellular plastic will take place, and therefore the glue is subjected to great stresses. In the case of great motions, the glue will release, wherein the plate may come loose from the thermally insulating layer .
An attempt to solve the problem is found in the document SE-B- 437 536, which shows an edge element consisting of an insulat¬ ing part of, for instance, cellular plastic, on the outside of which a structural layer of, for instance, asbestos cement is arranged. The edge element is either produced by folding the structural layer around the upper and lower part, respectively, of the insulating part, or by pressing the insulating part through a ready-formed structural layer. Irrespective of which method used, the production of the edge element will require much work before it is ready to be used.
Thus, there is a need for an edge element that is simple to manufacture and that only to a small extent is affected by ex¬ ternal conditions.
Summary of the Invention
Thus, the object of the present invention is to provide a de¬ vice and a method that solve the above-mentioned problems. Said object is attained by means of a device and a method having the features defined in the independent claims.
Additional embodiments of the invention are defined in the ap¬ purtenant dependent claims.
Brief Description of the Drawings
In the following, the invention will be described in a non-lim¬ iting way and for illustrative purposes, reference being made to the accompanying figures, wherein:
Fig. 1 shows a protecting external plate attached to a thermally insulating part according to a preferred embodiment; Fig. 2 shows an exploded diagram of the embodiment of Fig. 1; Fig. 3 shows a protecting external plate attached to a ther¬ mally insulating part according to an alternative embodiment; Fig. 4 shows the embodiment of Fig. 3, as seen from another perspective;
Fig. 5 shows how the protecting external plate is attached to a thermally insulating part according to the embodiment of Fig. 3; Fig. 6 shows how the protecting external plate is attached to a thermally insulating part according to the embodiment of Fig. 3;
Fig. 7 shows a protecting external plate attached to a thermally insulating part according to yet an alternative embodiment ;
Fig. 8 shows an exploded diagram of an interconnection of two thermally insulating parts at corners; and
Fig. 9 shows two thermally insulating parts that have been interconnected and forming a corner.
Detailed Description of the Invention
Fig. 1 shows a heat-insulating edge beam 1 consisting of a protecting external plate 2 attached to a thermally insulating part 3 according to a preferred embodiment of the present invention, and Fig. 2 shows an exploded diagram of the embodiment of Fig. 1. At the bottom, the plate 2 is arranged in a slot 4 in the thermally insulating part 3. The slot 4 has substantially the same thickness as the width of the plate and runs preferably along the entire length of the thermally insulating part 3. The plate will be fixed between the internal portion 3a of the thermally insulating part 3 and a portion 3b that protrudes externally of the plate 2. At the top, the plate is kept in place by a strip 5, which clamps the plate 2 against the thermally insulating part 3. When the thermally insulating part has the design shown in the figure, it is suitable to use a U-shaped strip 5. The strip 5 should be manufactured from a hard and thin material that, however, has certain flexibility, for in¬ stance rigid plastic or metal. Thereby, the strip also constitutes a protection against impacts and weather on the upper side of the thermally insulating part 3. Preferably, the strip 5 extends along the entire length of the thermally insulating part 3, but may also consist of a plurality of smaller strip portions arranged at a distance from each other. The inside 5a of the strip is preferably provided with holes so that the concrete that will abut against the strip 5 also will contact the cellular plastic inside the strip 5.
As an alternative or complement, one or more slots could also be arranged vertically instead of horizontally. If no horizontal slot is arranged at the bottom, the vertical slots should at the bottom be provided with some form of stop that prevents the plate from running down further than desirable. Irrespective of whether the slots are arranged horizontally or vertically, the same may extend along substantially the entire height or width of the edge element, or alternatively be divided into a plurality of short slot portions that keep the plate in place.
Figs. 3-6 show different views of a heat-insulating edge beam 1 consisting of a protecting external plate 2 attached to a thermally insulating part 3 according to an alternative embodiment of the present invention. At the bottom, the plate 2 is attached to the thermally insulating part 3 by means of one or more at¬ tachment strips 6. One part 6a of an attachment strip is arranged to be pressed into the underside of the thermally insu¬ lating part 3 and thereby attach the U-shaped attachment strip 6 to the thermally insulating part 3. The attachment part 6a of the strip 6 is preferably formed in such a way that it easily penetrates the cellular plastic, but that it is more difficult to remove it from the cellular plastic once it is fastened. At the top, the plate is kept in place by a strip 7 that clamps the plate 2 against the thermally insulating part 3. When the thermally insulating part 3 has the design shown in Figs. 3-6 instead of the design shown in Figs. 1-2, it is suitable to use a strip 7 the design of which is best shown in Fig. 6. On the internal side of the strip 7, a number of attachment members 7a, 7b are arranged. Some of the attachment members 7a are arranged to penetrate the edge element 3 and some of the attachment members 7b are arranged to abut against the edge element 3. The abutting attachment members are provided with holes so that concrete later on attaches the strip 7.
Fig. 7 shows two protecting external plates 2, which are attached to thermally insulating parts 3 according to yet an alternative embodiment of the present invention. One of the plates 2 (the one to the left in the picture) is attached according to what is described in Figs. 1 and 2. The other plate 2 (the one to the right in the picture) is provided with holes 8 in the lower part thereof. Through the holes 8, attachment members 9, similar to plugs, are pressed in and penetrate the cellular plastic of the thermally insulating part 3 and secure the lower part of the plate 2 against the thermally insulating part. At the top, the plate is secured by a strip according to the previously described design.
Fig. 8 shows a way to interconnect two thermally insulating parts in connection with a corner. The ends of the edge elements 3, in the form of L-elements, are provided with holes 10. A connecting edge element 3' is provided with a profile adapted ac¬ cording to the profile of the L-element 3 and also provided with projections 11 to be arranged in the holes 10 of the L-elements. Fig. 9 shows how two edge elements 3, 3' have been inter¬ connected after which plates 2 have been attached externally of the edge elements 3, 3' by means of one or some of the previously described fastening techniques. The strips 5 at the top of the edge elements 3, 3' may for instance be obliquely cut or be angled in the corners. If the strips are angled in the corners, they also assist when interconnecting the edge elements to each other. The strips may be continuous or divided into smaller lengths. The thickness of the strip may vary but is preferably less than 5 mm.
Of course, the plate does not need to be entirely smooth as in the figures, but may contain projections or the like. Instead of using strips at the top, the plate 2 may be formed to surround the upper part of the thermally insulating part 3 and in such a way "be suspended" on the thermally insulating part without an upper strip having to be used. Thus, at the top, the protecting plate 2 comprises a part that extends around an upper portion of the thermally insulating part 3 and down a bit on the inside 3a of the thermally insulating part, preferably approximately as far as the strip 5 extends in Figs. 1 and 2.
By using a mechanical fastening, instead of glue, of the exter¬ nal plate 2, the same may be applied at a later stage of the production process. This entails that the process becomes more flexible and the choice of plate (material, size, etc.) can be adapted according to the desires of the customer. Naturally, the different the fastening techniques can be freely combined, and it is also possible to use glue as a complement.
The nature and the function of the invention should have been clear from what has been mentioned above and shown in the drawings, and the invention is naturally not limited to the embodiments described above and shown in the accompanying drawings. Modifications are feasible, particularly as for the nature of the different parts, or by using an equivalent technique, with¬ out departing from the protection area of the invention, such as it is defined in the claims.

Claims

1. Heat-insulating edge element (1) to surround building cast-in-situ concrete foundations, the edge element
(1) comprising, on one hand, a thermally insulating part (3) consisting of cellular plastic, and on the other hand an external plate (2) protecting the thermally insulating part (3), characterized in that the protecting plate (2) is attached to the thermally insulating part (3) at the lower and/or upper part of the plate by means of separate attachment members (4, 5, 6, 7, 9) .
2. Edge element (1) according to claim 1, characterized in that the protecting plate (2) at the top is attached to the thermally insulating part (3) by means of one or more strips (5, 7 ) .
3. Edge element (1) according to claim 2, characterized in that one or more of the strips (5, 7) are provided with means (7a) arranged to penetrate the thermally insulating part (3).
4. Edge element (1) according to claim 2 or 3, characterized in that one or more of the strips (5, 7) are U- shaped.
5. Edge element (1) according to claim 1, characterized in that the protecting plate (2) at the top also comprises a part that extends around an upper portion of the ther¬ mally insulating part (3) and down a bit on the inside of the thermally insulating part (3) .
6. Edge element (1) according to any one of the preceding claims, characterized in that the protecting plate
(2) is attached to the thermally insulating part (3) by means of slots (4) arranged in the thermally insulating part (3) .
7. Edge element (1) according to claim 6, characterized in that said slots (4) are substantially horizontally arranged in the longitudinal direction (L) of the thermally insulating part (3) .
8. Edge element (1) according to any one of claims 1-5, characterized in that the protecting plate (2) at the bottom is attached to the thermally insulating part (3) by means of one or more strips (6) .
9. Edge element (1) according to claim 8, characterized in that the strips are provided with means (6a) arranged to penetrate the thermally insulating part (3).
10. Edge element (1) according to any one of the preceding claims, characterized in that the protecting plate
(2) at the bottom is provided with holes (8) as well as is attached to the thermally insulating part (3) by means of plugs (9) running through said holes (8) and penetrating the thermally insulating part (3) .
11. Method for attaching a plate (2) on the outside of a thermally insulating part (3) intended to surround build¬ ing cast-in-situ concrete foundations, characterized in that it comprises to attach, by means of separate attachment members (4, 5, 6, 7, 9), the plate in the upper and/or lower part thereof to the thermally insulating part (3).
12. Method for attaching a plate (2) on the outside of a thermally insulating part (3) according to claim 11, characterized in that it also comprises the step of:
- at the top, attaching the plate (2) by means of strips (5, 7 ) .
13. Method for attaching a plate (2) on the outside of a thermally insulating part (3) according to any one of claims 11-12, characterized in that it also comprises the step of:
- attaching the plate (2) , in the thermally insulating part (3) , by means of horizontally and/or vertically arranged slots (4).
PCT/SE2007/050877 2006-12-05 2007-11-20 Heat -insulating edge element and method for attaching a plate WO2008069739A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0602608-2 2006-12-05
SE0602608A SE530540C2 (en) 2006-12-05 2006-12-05 Heat insulating edge element with mounting device for protective disc

Publications (1)

Publication Number Publication Date
WO2008069739A1 true WO2008069739A1 (en) 2008-06-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2007/050877 WO2008069739A1 (en) 2006-12-05 2007-11-20 Heat -insulating edge element and method for attaching a plate

Country Status (2)

Country Link
SE (1) SE530540C2 (en)
WO (1) WO2008069739A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1037719C2 (en) * 2010-02-15 2011-08-16 Havadi B V FORMING ELEMENT AND METHOD FOR MANUFACTURING A FOUNDATION.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE416833B (en) * 1978-12-08 1981-02-09 A Betong Ab Form erection process for use in in-situ casting of concrete base slabs for buildings
US4335548A (en) * 1980-04-30 1982-06-22 Millcraft Housing Corp. Insulating skirt
SE437536B (en) * 1974-10-02 1985-03-04 A Betong Ab HEAT-INSULATING EDGE ELEMENT FOR CASTING BOTTOM OR BATH FLOORING CONCRETE
SE501281C2 (en) * 1993-06-22 1995-01-09 Haakan Aaltonen Construction procedure and means for carrying out the procedure
US5749182A (en) * 1997-02-21 1998-05-12 Vavrinak; Ronald Foundation protection panel system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE437536B (en) * 1974-10-02 1985-03-04 A Betong Ab HEAT-INSULATING EDGE ELEMENT FOR CASTING BOTTOM OR BATH FLOORING CONCRETE
SE416833B (en) * 1978-12-08 1981-02-09 A Betong Ab Form erection process for use in in-situ casting of concrete base slabs for buildings
US4335548A (en) * 1980-04-30 1982-06-22 Millcraft Housing Corp. Insulating skirt
SE501281C2 (en) * 1993-06-22 1995-01-09 Haakan Aaltonen Construction procedure and means for carrying out the procedure
US5749182A (en) * 1997-02-21 1998-05-12 Vavrinak; Ronald Foundation protection panel system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1037719C2 (en) * 2010-02-15 2011-08-16 Havadi B V FORMING ELEMENT AND METHOD FOR MANUFACTURING A FOUNDATION.

Also Published As

Publication number Publication date
SE530540C2 (en) 2008-07-01
SE0602608L (en) 2008-06-06

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