Structural element for thermal insulation

• US 5,799,457 A
• Filed: 02/18/1997
• Issued: 09/01/1998
• Est. Priority Date: 12/15/1993
• Status: Expired due to Fees

• Current Assignee: Schöck Bauteile GmbH
• Original Assignee: Schoeck Bauteile GmbH
• Inventors: Schumacher, Armin, Trunz, Gerhard
• Primary Examiner(s): Safavi, Michael
• Application Number:
  US08/801,289
• Time in Patent Office: 560 Days
• Field of Search: 52/583.1, 52/432, 52/433, 52/259, 52/302.1, 52/405.3
• US Class Current: 52/405.3
• CPC Class Codes: E04B 1/0038 Anchoring devices specially adapted therefor with means for preventing cold bridging

Abstract

A structural element for thermal insulation between two concrete structural components. An insulating body having metal reinforcing rods extending therethrough is to be attached to the concrete structural members with the rods extending within each member along either side of the insulating body. The rods running diagonally through the insulating body and extending along upper and lower edges of the insulating body so as to lie within upper and lower portions of the concrete structural members. Fire protection plates may be attached along upper and lower surfaces of the insulating body.

Claims

1. A structural element for use in providing thermal insulation between two prefabricated concrete hollow body plates (1, 2) having hollow spaces (1a) extending perpendicular to the structural element (3), the hollow spaces being separated by intermediate webs (1b), the structural element (3) comprising an insulating body (4) having upper and lower regions and first and second opposite sides, the insulating body being adapted for location between the concrete body plates and having tensile, compression, and transverse-force rods (5, 6, 7) which extend transverse to the insulating body (4) and are adapted to be positioned in the two concrete hollow body plates (1, 2), the transverse-force rods (7) being provided in a first group and a second group, each transverse-force rod in the first group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the first group extending outwardly from the upper region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the first group extending outwardly from the lower region on the second side of the insulating body, the first and second parallel portions being connected by a diagonal portion which extends through the insulating body (4), each transverse-force rod in the second group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the second group extending outwardly from the lower region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the second group extending outwardly from the upper region on the second side of the insulating body, the first and second parallel portions of each of the transverse-force rods in the second group being connected by a diagonal portion which extends through the insulating body (4), such that the second group of the transverse-force rods is arranged in a mirror-inverted manner to the transverse-force rods in the first group, the tension rods being arranged in the upper region of the insulating body and having an anchoring length, the compression rods (6) being arranged in the lower region of the insulating body (4) and have an anchoring length which is sufficient to make the compression rods function as tension rods as well, the tension, compression, and transverse-force rods (5, 6, 7) in the insulating body (4) being located at a selected spacing, the selected spacing being adapted to correspond with a position of the intermediate webs (1b), the insulating body (4) having recesses (4a) that are adapted to be located in complementary positions to the hollow spaces (1a) of adjacent hollow body concrete plates, insertable form parts (10, 110, 112) being located in the recesses (4a) in the insulating body, and the form parts (10) comprise two parts (10b, 10c) displaceable along diagonal surfaces (10a).

2. A structural assembly comprising two prefabricated concrete hollow body plates and a structural element (3) located between the two prefabricated concrete hollow body plates (1, 2) for providing thermal insulation between the concrete body plates, the two prefabricated concrete hollow body plates having hollow spaces (1a) extending perpendicular to the structural element (3) and sides adjacent to the structural element, the hollow spaces being separated by intermediate webs (1b), the structural element (3) including an insulating body (4) having upper and lower regions and first and second opposite sides, the insulating body being located between the concrete body plates and having integrated tensile, compression, and transverse-force rods (5, 6, 7), which extend transverse to the insulating body (4) and into the sides of the two concrete hollow body plates (1, 2), the transverse-force rods (7) being provided in a first group and a second group, each transverse-force rod in the first group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the first group extending outwardly from the upper region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the first group extending outwardly from the lower region on the second side of the insulating body, the first and second parallel portions being connected by a diagonal portion which extends through the insulating body (4), each transverse-force rod in the second group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the second group extending outwardly from the lower region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the second group extending outwardly from the upper region on the second side of the insulating body, the first and second parallel portions of each of the transverse-force rods in the second group being connected by a diagonal portion which extends through the insulating body (4), such that the second group of the transverse-force rods is arranged in a mirror-inverted manner to the transverse-force rods in the first group, the tension rods being arranged in the upper region of the insulating body and having a first anchoring length, the compression rods (6) being arranged in the lower region of the insulating body (4) and have a second anchoring length which is sufficient to make the compression rods function as tension rods as well, and the tension, compression, and transverse-force rods (5, 6, 7) in the insulating body (4) are located in a position to correspond with a position of the intermediate webs (1b).

3. Structural element in accordance with claim 2, characterized in that there are approximately the same number of transverse-force rods (7, 7'"'"') in the first and second groups located in the insulating body (4).

4. Structural element in accordance with claim 3, characterized in that the transverse-force rods (7, 7'"'"') from the first and second groups are arranged in an approximately alternating fashion in the insulating body (4).

5. Structural element in accordance with claim 2, characterized in that the transverse-force rods (7, 7'"'"') are positioned in the insulating body and are located in a complementary position to a vertical center region of the intermediate webs (1b).

6. Structural element in accordance with claim 2, characterized in that the tension and compression rods (5, 6) are positioned in the insulating body and are located in a complementary position to an area adjacent to a center region of the intermediate webs (1b).

7. Structural assembly in accordance with claim 2, characterized in that one hollow body plate (1 or 2) has drainage bores that intersect the hollow spaces (1a).

8. Structural assembly in accordance with claim 2, wherein the hollow body plates have a first height, and the insulating body (4) has a smaller height than the adjacent hollow body plates (1, 2).

9. Structural element in accordance with claim 2, characterized in that the insulating body (4) has a top and a bottom, and includes a fire protection plate (44, 45) on one of the top and bottom.

10. Structural element in accordance with claim 9, characterized in that fire protection plates (44, 45) are located on the top and the bottom of the insulating body, and the bottom fire protection plate is thicker than the top fire protection plate (44).

11. Structural element in accordance with claim 9, having a top fire protection plate (44) which is wider than the insulating body (4) for extending into the adjacent hollow body plates (1, 2) on both sides.

12. Structural element in accordance with claim 9, wherein fire protection plates (44, 45) are located on the top and bottom of the insulating body, and the insulating body (4) has a lower height which is adapted to be approximately 3 to 6 mm lower than adjacent hollow body plates (1, 2).

13. A structural element for use in providing thermal insulation between two prefabricated concrete hollow body plates (1, 2) having hollow spaces (1a) extending perpendicular to the structural element (3), the hollow spaces being separated by intermediate webs (1b), the structural element (3) comprising an insulating body (4) having upper and lower regions and first and second opposite sides, the insulating body being adapted for location between the concrete body plates and having tensile, compression, and transverse-force rods (5, 6, 7) which extend transverse to the insulating body (4) and are adapted to be positioned in the two concrete hollow body plates (1, 2), the transverse-force rods (7) being provided in a first group and a second group, each transverse-force rod in the first group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the first group extending outwardly from the upper region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the first group extending outwardly from the lower region on the second side of the insulating body, the first and second parallel portions being connected by a diagonal portion which extends through the insulating body (4), each transverse-force rod in the second group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the second group extending outwardly from the lower region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the second group extending outwardly from the upper region on the second side of the insulating body, the first and second parallel portions of each of the transverse-force rods in the second group being connected by a diagonal portion which extends through the insulating body (4), such that the second group of the transverse-force rods is arranged in a mirror-inverted manner to the transverse-force rods in the first group, the tension rods being arranged in the upper region of the insulating body and having an anchoring length, the compression rods (6) being arranged in the lower region of the insulating body (4) and have an anchoring length which is sufficient to make the compression rods function as tension rods as well, the tension, compression, and transverse-force rods (5, 6, 7) in the insulating body (4) being located at a selected spacing, the selected spacing being adapted to correspond with a position of the intermediate webs (1b), the insulating body (4) having recesses (4a) that are adapted to be located in complementary positions to the hollow spaces (1a) of adjacent hollow body concrete plates, and insertable form parts (10, 110, 112) being located in the recesses (4a) in the insulating body.

14. Structural element in accordance with claim 13, characterized in that the form parts (10, 110, 112) are clamped in the recesses (4a).

15. Structural element in accordance with claim 13, characterized in that the insulating body (4) has water drainage channels (12, 13, 14), and the form parts (10, 110, 112) have recesses (10d, 110b) in the region of the water drainage channels (12, 13).

16. A structural element for use in providing thermal insulation between two prefabricated concrete hollow body plates (1, 2) having hollow spaces (1a) extending perpendicular to the structural element (3), the hollow spaces being separated by intermediate webs (1b), the structural element (3) comprising an insulating body (4) having upper and lower regions and first and second opposite sides, the insulating body being adapted for location between the concrete body plates and having tensile, compression, and transverse-force rods (5, 6, 7) which extend transverse to the insulating body (4) and are adapted to be positioned in the two concrete hollow body plates (1, 2), the transverse-force rods (7) being provided in a first group and a second group, each transverse-force rod in the first group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the first group extending outwardly from the upper region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the first group extending outwardly from the lower region on the second side of the insulating body, the first and second parallel portions being connected by a diagonal portion which extends through the insulating body (4), each transverse-force rod in the second group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the second group extending outwardly from the lower region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the second group extending outwardly from the upper region on the second side of the insulating body, the first and second parallel portions of each of the transverse-force rods in the second group being connected by a diagonal portion which extends through the insulating body (4), such that the second group of the transverse-force rods is arranged in a mirror-inverted manner to the transverse-force rods in the first group, the tension rods being arranged in the upper region of the insulating body and having an anchoring length, the compression rods (6) being arranged in the lower region of the insulating body (4) and have an anchoring length which is sufficient to make the compression rods function as tension rods as well, the tension, compression, and transverse-force rods (5, 6, 7) in the insulating body (4) being located at a selected spacing, the selected spacing being adapted to correspond with a position of the intermediate webs (1b), the insulating body (4) having recesses (4a) that are adapted to be located in complementary positions to the hollow spaces (1a) of adjacent hollow body concrete plates, insertable form parts (10, 110, 112) being located in the recesses (4a) in the insulating body, and the form parts comprise a radially flexible sealing ring (110), particularly inwardly indentable and a plug (112) insertable therein.

17. A structural element for use in providing thermal insulation between two prefabricated concrete hollow body plates (1, 2) having hollow spaces (1a) extending perpendicular to the structural element (3), the hollow spaces being separated by intermediate webs (1b), the structural element (3) comprising an insulating body (4) having upper and lower regions and first and second opposite sides, the insulating body being adapted for location between the concrete body plates and having tensile, compression, and transverse-force rods (5, 6, 7) which extend transverse to the insulating body (4) and are adapted to be positioned in the two concrete hollow body plates (1, 2), the transverse-force rods (7) being provided in a first group and a second group, each transverse-force rod in the first group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the first group extending outwardly from the upper region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the first group extending outwardly from the lower region on the second side of the insulating body, the first and second parallel portions being connected by a diagonal portion which extends through the insulating body (4), each transverse-force rod in the second group including first and second parallel portions which are parallel to and offset from each other, the first parallel portion of each of the transverse-force rods in the second group extending outwardly from the lower region on the first side of the insulating body and the second parallel portion of each of the transverse-force rods in the second group extending outwardly from the upper region on the second side of the insulating body, the first and second parallel portions of each of the transverse-force rods in the second group being connected by a diagonal portion which extends through the insulating body (4), such that the second group of the transverse-force rods is arranged in a mirror-inverted manner to the transverse-force rods in the first group, the tension rods being arranged in the upper region of the insulating body and having an anchoring length, the compression rods (6) being arranged in the lower region of the insulating body (4) and have an anchoring length which is sufficient to make the compression rods function as tension rods as well, the tension, compression, and transverse-force rods (5, 6, 7) in the insulating body (4) being located at a selected spacing, the selected spacing being adapted to correspond with a position of the intermediate webs (1b), the insulating body (4) having water drainage channels (12, 13, 14) and recesses (4a) that are adapted to be located in complementary positions to the hollow spaces (1a) of adjacent hollow body concrete plates, and the water drainage channels (12, 13, 14) are located between the recesses (4a) and the lower region of the insulating body (4).