초록 ▼

A concrete form panel system includes a basic form panel of expanded polystyrene material having at least one slot formed in the top surface along its length, to divide the panel top surface into piers. A series of top hats are provided for selective attachment to the piers to increase the depth of

A concrete form panel system includes a basic form panel of expanded polystyrene material having at least one slot formed in the top surface along its length, to divide the panel top surface into piers. A series of top hats are provided for selective attachment to the piers to increase the depth of the slots between piers, and thereby increase the depth of a joist formed by hardened concrete poured into the slot. Transverse slots may also be formed by separating top hats along their lengths. The transverse slots create transverse bracing between T-joists in a concrete deck. The form panels and top hats may also be used to create separate structural joists with attachment lifts, to permit connection of the joists to a subsequently constructed floor or deck system.

대표청구항 ▼

1. A concrete form system, comprising:at least a first elongated flat form panel having flat-top and bottom surfaces, first and second ends, and opposing longitudinal side edges;at least a first elongated slot formed in the top surface of the panel and extending from end to end, parallel to the side

1. A concrete form system, comprising:at least a first elongated flat form panel having flat-top and bottom surfaces, first and second ends, and opposing longitudinal side edges;at least a first elongated slot formed in the top surface of the panel and extending from end to end, parallel to the side edges, said slot dividing the top surface of the panel into upstanding piers; andat least a first elongated flat hat removably secured to a top of each pier, each hat having flat top and bottom surfaces and a width equal to the width of the pier to which it is secured. 2. The concrete form system of claim 1, further comprising a perimeter wall formed around the form system and projecting upwardly beyond the top surface of the hats, such that concrete poured over the form panel and hats will form a flat deck above the top surfaces of the hats with an integrated T-joist formed within the at least one slot. 3. The concrete form system of claim 1, wherein said panel and hats are formed of expanded polystyrene material. 4. The concrete form system of claim 3, wherein said slot is formed with sidewalls that slope outwardly from a top edge to a bottom edge, such that hardened concrete within the slot will prevent the panel from being removed downwardly. 5. A concrete form system, comprising:at least a first elongated flat form panel having flat top and bottom surfaces, first and second ends, and opposing longitudinal side edges;at least a first elongated slot formed in the top surface of the panel and extending from end to end, parallel to the side edges, said slot dividing the top surface of the panel into upstanding piers;each pier having a plurality of hats secured along its length, spaced apart from one another to form transverse slots between the hats on each pier, each hat having flat top and bottom surfaces and a width equal to the width of the pier to which it is secured;said panel and hats being formed of expanded polystyrene material; andsaid slot being formed with sidewalls that slope outwardly from a top edge to a bottom edge, such that hardened concrete within the slot will prevent the panel from being removed downwardly. 6. The concrete form system of claim 5, wherein said transverse slots on each pier are aligned with transverse slots on an adjacent pier. 7. The concrete form system of claim 6, wherein said panel slot has upper edges that are beveled inwardly, and wherein said hats have a depending flange along a longitudinal edge that matches the beveled slot edge to nest in the bevel when secured to the panel pier. 8. The concrete form system of claim 7, further comprising at least a second hat secured to the top of the first hat on each pier, the second hat having a length and width equal to the length and width of the first hat, and wherein said perimeter wall projects upwardly beyond a top surface of the second hats. 9. The concrete form system of claim 8, wherein said second hats have a thickness different than a thickness of the first hats. 10. The concrete form system of claim 9, wherein said panel side edges include means for aligning adjacent panels such that the top and bottom surfaces of adjacent panels are flush. 11. The concrete form system of claim 1, wherein said slot is formed with vertical, parallel sidewalls, such that the form panels may be removed downwardly from hardened concrete formed within the slot. 12. The concrete form system of claim 1, wherein said slot is formed with sidewalls that slope inwardly from a top edge to a bottom edge, such that the form panels may be removed downwardly from hardened concrete formed within the slot. 13. The concrete form system of claim 12, wherein upper surfaces of the panel top hats and the sidewalls and bottom of the slot all have a layer of material thereon that resists adherence of concrete thereto. 14. The concrete form system of claim 1, wherein said slot is formed with sidewalls that slope outwardly from a top edge to a bottom edge, such that hardened concr ete within the slot will prevent the panel from being removed downwardly. 15. A concrete form system, comprising:at least a first elongated flat form panel having flat top and bottom surfaces, first and second ends, and opposing longitudinal side edges;at least a first elongated slot formed in the top surface of the panel and extending from end to end, parallel to the side edges, said slot dividing the top surface of the panel into upstanding piers;each pier having a plurality of hats secured along its length, spaced apart from one another to form transverse slots between the hats on each pier, each hat having flat top and bottom surfaces and a width equal to the width of the pier to which it is secured. 16. The concrete form system of claim 14, wherein said transverse slots on each pier are aligned with transverse slots on an adjacent pier. 17. A concrete form system, comprising:at least a first elongated flat form panel having flat top and bottom surfaces, first and second ends, and opposing longitudinal side edges;at least a first elongated slot formed in the top surface of the panel and extending from end to end, parallel to the side edges, said slot dividing the top surface of the panel into upstanding piers;at least a first elongated flat hat removably secured to each pier, each hat having flat top and bottom surfaces and a width equal to the width of the pier to which it is secured;said panel slot having upper edges that are beveled inwardly, and said at least one hat having a depending flange along a longitudinal edge that matches the beveled slot edge to nest in the bevel when secured to the panel pier. 18. A concrete form system, comprising:at least a first elongated flat form panel having flat top and bottom surfaces, first and second ends, and opposing longitudinal side edges;at least a first elongated slot formed in the top surface of the panel and extending from end to end, parallel to the side edges, said slot dividing the top surface of the panel into upstanding piers;at least a first elongated flat hat removably secured to each pier, each hat having flat top and bottom surfaces and a width equal to the width of the pier to which it is secured; andat least a second hat secured to the top of the first hat on each pier, the second hat having a length and width equal to the length and width of the first hat. 19. The concrete form system of claim 1, wherein said panel further includes at least one stiffener stud extending through the length of the panel parallel to and on opposing sides of the at least one longitudinal slot. 20. The concrete form system of claim 1, wherein said panel side edges include means for aligning adjacent panels such that top and bottom surfaces of adjacent panels are flush.