EP0066979A1 - Concrete sandwich panel - Google Patents

Concrete sandwich panel Download PDF

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Publication number
EP0066979A1
EP0066979A1 EP82302514A EP82302514A EP0066979A1 EP 0066979 A1 EP0066979 A1 EP 0066979A1 EP 82302514 A EP82302514 A EP 82302514A EP 82302514 A EP82302514 A EP 82302514A EP 0066979 A1 EP0066979 A1 EP 0066979A1
Authority
EP
European Patent Office
Prior art keywords
panel
concrete
insulative
ties
panels
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.)
Withdrawn
Application number
EP82302514A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert H. Nagy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0066979A1 publication Critical patent/EP0066979A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/003—Machines or methods for applying the material to surfaces to form a permanent layer thereon to insulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members

Definitions

  • laminas of insulation have been inserted between an inner structural concrete wall panel and an outer decorative concrete face panel or shell.
  • the assembly be tied together to provide no significant movement of the various lamina relative to each other.
  • the face panel be sufficiently integrated with the structural panel to prevent inadvertant loss thereof such as sliding off of the face shell during shipment or erection or pulling off due to wind suction.
  • differential temperature effects could cause thermal cracking of either the structural or face panel if there is no flexibility or capability of yielding in the connection between the panels.
  • the present invention provides a tie system to integrate the face panel, insulation panel and structural panel to provide good performance and minimize thermal cracking and also provide sufficient integrity to maintain a tight interface between the insulation and structural panel and prevent the entry of water therebetween.
  • a precast insulative concrete panel construction comprising a first concrete panel section having longitudinally extending reinforcing rods, insulative panel sections super-imposed on said first panel section and having gaps between said sections, a second concrete panel section having corresponding longitudinally extending reinforcing rods and tie means to connect said reinforcing rods of said first and second panels, to maintain said panels in unitary assembly and to allow for non-composite expansion and contraction of said panels due.to temperature differentials so that cracking of said panels due to temperature changes is minimized.
  • the tie means comprises C-shaped ties having allochiral hook end portions with said end portions engaged with said reinforcing rods and said ties having a thickness greater than 3.76 mm (.148 inches) and less than 12.7 mm (.5 inches).
  • the invention further provides a method of making a composite concrete insulative panel comprising the steps of:
  • the invention provides a sandwich wall panel and method of making the same which includes an insulative lamina sandwiched between a structural concrete panel and a concrete face panel.
  • a system of integrating the panel sections and insulative lamina is provided which minimizes composite action of the panel under stress which could lead to thermal cracking due to differential temperature effects.
  • the structure which integrates the three lamina maintains a tight interface between the insulation and the structural panel.
  • C-shaped ties connecting longitudinally extending reinforcing rods in both concrete panels and having a diameter of 6.35 to 4.76 mm (of 1/4 to 3/16 inch) were found to provide the desired balance between rigidity and non-composite action.
  • the method of the invention relates to the assembly of the panels wherein the C-ties are held in place, while the cast structural panel is wet, by the abutting ends of the overlying blocks of insulation.
  • the abutting ends are pressed against the C-ties with the lower hook of the C-ties engaged with the reinforcing rods in the lower panel.
  • the reinforcing rods for the face panel are pressed into the upper curves of the C-ties by blocks of wood supported on the insulation to properly orient and position the reinforcing rods in the upper hook portions and support the reinforcing rods until the face panel has cured.
  • Fig. 1 shows a sandwich panel 8 which includes a pre-stressed concrete structural panel section 10 which can be formed by an apparatus such as that shown in U.S.-A-3,382,304 or U.S.-A-3,979,171.
  • the panels can be 10.16 cm., 15.24 cm., 20.32 cm., 25.4 cm., 30.48 cm., (four inches, six inches, eight, ten or twelve inches) thick.
  • wall panels are 15.24 cm or 20.32 cm (six or eight inches) thick.
  • C-shaped ties 16 preferably formed from stainless steel are embedded in the panel and, as illustrated in Fig. 2, hooked around the strands 14.
  • the connector ties 16 have hook shaped ends in allochiral relation.
  • the C-ties 16 are positioned between the abutting ends 21 between adjacent insulative panels 20, as illustrated in Fig. 1 and 3.
  • the insulative panels 20 are pressed together as the C-ties are inserted to support them in wet concrete.
  • the C-ties 16 can be arranged in a pattern as illustrated in Fig. 3, with four C-ties adjacent the ends of the panel, with two C-ties staggered at spaced intervals along the length of the panel. With the use of 121.92 cm (4 foot) insulation panels the C-ties 16 are spaced at 121.92 cm (4 foot) intervals.
  • Tests were conducted to compare the measured deflection of the face panel with the theoretical composite deflection and the theoretical non-composite deflection when a load was applied to the structural panel. Bars measuring 3.175 mm by 25.4 mm (1/8 inch by 1 inch) were tested as ties between the panels and were found to provide too much composite action which could lead to panel cracking due to differential temperature effects.
  • Figures 5, 6, 7, and 8 illustrate comparison of test results with theoretical calculated composite and non-composite deflections.
  • a face tie arrangement such as that shown in Fig. 1 was employed with the ties at a 121.92 cm (4 foot) spacing.
  • the structural panel cross-section was 15.24 cm (6 inch) pre-stressed with 5.08 cm (2 inches) of urethane insulation plus a 5.08 cm (2 inch) thick facing panel.
  • the tests involved a panel 8.38 m (27 feet 6 inches) in length.
  • the panels were supported at two points 160 cm (5 feet 3 inches) from the ends.
  • the panels were loaded up by piercing the face panel and insulation and applying the load directly on the panel 10 and deflections were measured. Both cantilever and main span tests were performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Panels For Use In Building Construction (AREA)
  • Sewage (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
EP82302514A 1981-05-22 1982-05-18 Concrete sandwich panel Withdrawn EP0066979A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26655981A 1981-05-22 1981-05-22
US266559 1981-05-22

Publications (1)

Publication Number Publication Date
EP0066979A1 true EP0066979A1 (en) 1982-12-15

Family

ID=23015078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82302514A Withdrawn EP0066979A1 (en) 1981-05-22 1982-05-18 Concrete sandwich panel

Country Status (6)

Country Link
EP (1) EP0066979A1 (fi)
JP (1) JPS58549A (fi)
AU (1) AU8344582A (fi)
ES (2) ES512461A0 (fi)
FI (1) FI821770A0 (fi)
NO (1) NO821532L (fi)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552139A2 (fr) * 1983-09-20 1985-03-22 Antoniazzi Alain Ensemble d'elements prefabriques alveoles permettant de realiser tout type de construction
FR2697858A1 (fr) * 1992-11-10 1994-05-13 Guenee Alain Procédé de fabrication d'un panneau de construction de type sandwich à trois couches et panneau obtenu par la mise en Óoeuvre de ce procédé.
FR2705747A1 (fr) * 1992-05-20 1994-12-02 Avco Corp Système de fixation de panneaux ignifugés.
US5433991A (en) * 1992-12-01 1995-07-18 Avco Corporation Reinforcement system for mastic intumescent fire protection coatings comprising a hybrid mesh fabric
US5509241A (en) * 1992-05-20 1996-04-23 Avco Corporation Fireproofing panel attachment system
US5580648A (en) * 1992-12-01 1996-12-03 Avco Corporation Reinforcement system for mastic intumescent fire protection coatings
DE19717396A1 (de) * 1997-04-24 1998-10-29 Beton Und Fertigteilwerk Dorst Stahlbeton-Fertigteilboden
CN103669707A (zh) * 2013-12-31 2014-03-26 吕燕 房屋用轻质复合预制墙板及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR741494A (fi) * 1900-01-01
FR1508689A (fr) * 1967-01-20 1968-01-05 Elément de mur préfabriqué à plaques intérieure et extérieure en béton armé et à couche isolante intermédiaire
US3494088A (en) * 1967-02-14 1970-02-10 Thor Waerner Connecting anchors for multiple layer concrete panels
FR2088543A1 (fi) * 1970-05-13 1972-01-07 Waerner Thor
AT323381B (de) * 1973-08-09 1975-07-10 Kranebitter Gesmbh Als bleibende schalung dienendes wandbauelement
DE1708768B1 (de) * 1960-10-08 1976-07-01 Jakobsen Svend Fassadenelement aus beton

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216577U (fi) * 1975-07-25 1977-02-05

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR741494A (fi) * 1900-01-01
DE1708768B1 (de) * 1960-10-08 1976-07-01 Jakobsen Svend Fassadenelement aus beton
FR1508689A (fr) * 1967-01-20 1968-01-05 Elément de mur préfabriqué à plaques intérieure et extérieure en béton armé et à couche isolante intermédiaire
US3494088A (en) * 1967-02-14 1970-02-10 Thor Waerner Connecting anchors for multiple layer concrete panels
FR2088543A1 (fi) * 1970-05-13 1972-01-07 Waerner Thor
AT323381B (de) * 1973-08-09 1975-07-10 Kranebitter Gesmbh Als bleibende schalung dienendes wandbauelement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552139A2 (fr) * 1983-09-20 1985-03-22 Antoniazzi Alain Ensemble d'elements prefabriques alveoles permettant de realiser tout type de construction
FR2705747A1 (fr) * 1992-05-20 1994-12-02 Avco Corp Système de fixation de panneaux ignifugés.
US5509241A (en) * 1992-05-20 1996-04-23 Avco Corporation Fireproofing panel attachment system
FR2697858A1 (fr) * 1992-11-10 1994-05-13 Guenee Alain Procédé de fabrication d'un panneau de construction de type sandwich à trois couches et panneau obtenu par la mise en Óoeuvre de ce procédé.
US5433991A (en) * 1992-12-01 1995-07-18 Avco Corporation Reinforcement system for mastic intumescent fire protection coatings comprising a hybrid mesh fabric
US5580648A (en) * 1992-12-01 1996-12-03 Avco Corporation Reinforcement system for mastic intumescent fire protection coatings
DE19717396A1 (de) * 1997-04-24 1998-10-29 Beton Und Fertigteilwerk Dorst Stahlbeton-Fertigteilboden
CN103669707A (zh) * 2013-12-31 2014-03-26 吕燕 房屋用轻质复合预制墙板及其制备方法

Also Published As

Publication number Publication date
ES8307322A1 (es) 1983-06-16
ES272152Y (es) 1984-12-16
ES512461A0 (es) 1983-06-16
NO821532L (no) 1982-11-23
FI821770A0 (fi) 1982-05-19
ES272152U (es) 1984-05-01
JPS58549A (ja) 1983-01-05
AU8344582A (en) 1982-11-25

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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17P Request for examination filed

Effective date: 19830614

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19840807