The present invention relates generally to the field of construction and, more specifically, to a method and apparatus for forming an elevated floor and support beams supporting the floor.
Concrete is a cementatious material which is a versatile and commonly used building material and particularly useful in forming floors and walls of building structures. These structures can be of varied size and design thereby requiring concrete to be poured and shaped in different quantitites as well as in differing dimensions. Currently, in the concrete industry, a high demand for lumber has forced a shift to using concrete in order to reduce the number of trees being harvested for lumber. One barrier to continuing this trend to the use of concrete has been the lack of an elevated floor pouring system that does not depend on repetitive dimensions in order to be economical to manufacture.
Generally, an elevated deck is produced using a plurality of construction materials. A first manner of producing an elevated concrete deck uses pre-fabricated concrete slabs. However, the cost of producing, manipulating and setting these slabs is high. Using pre-fabricated slabs also requires heavy machinery to be employed for transporting and correctly positioning the slabs in order to produce the desired deck. Additionally, the use of slabs results in the need for further workmanship in order to create a single, level surface by covering the seams between each of the individual slabs. Devices exist which attempt to remedy some of the noted drawbacks such as the system described by Zambelli et al. in U.S. Pat. No. 6,457,288 which provides a self-supporting and walkable pre-fabricated panel. However, this system requires a long pre-order schedule and further requires a user to provide the manufacturer with precise dimensions associated with the panels.
Another method for producing a concrete deck is disclosed in U.S. Pat. No. 6,272,749 issued to Boeshart et al. Therein, a method for producing a single-use form panel insert from an extrudable material, such as plastics, is disclosed. The form panel is cut and positioned side-by-side and between each panel is a channel able to receive support beams. Concrete is subsequently poured over the panels to form a deck. However, this method uses form panels that are not re-useable. Additionally, the panels used in the Boeshart et al. system requires the order therefore to be placed far in advance of intended use and, similarly to the Zambelli et al. system, requires precise dimensions be provided at the time of order.
A further form system for poured concrete is described by Boeshart in U.S. Pat. No. 6,817,150. This system is similar to the system described in U.S. Pat. No. 6,272,749 and also includes a plurality of hat members able to be positioned on a top surface of the form in order to selectively increase the thickness thereof. The positioning of hat members provides a greater depth for the slots between the form panels in which the concrete will flow. Similarly to the device above described Boeshart et al. system, this system requires the order therefore to be placed far in advance of intended use and requires precise dimensions be provided at the time of order.
Therefore, a need exists for a method and system that allows for the creation of an elevated deck that is flexible with respect to the desired dimensions of the structure created therefrom and that is re-useable. The system according to the invention principles satisfies these needs and remedies the above-noted drawbacks.
These objects have largely been achieved by the apparatus and method for forming an elevated deck in accordance with the present invention. The present invention includes a profile form which is especially configured for receiving concrete on the generally upper surface thereof and alone, or in combination with other similar profiles, forming a deck and a support beam or beams which support the deck.
In one aspect of the present invention, each of the profile forms include first and second end sections connected by a midsection. The midsection includes first and second side walls extending from the first and second end sections, respectively, and connected by a base section to form a reservoir between the first and second end sections. Preferably, at least one of the first and second end sections includes a lip for receiving an end section of an adjacently positioned form profile when crating a planar elevated deck whereby the system may incorporate a plurality of form profiles overlapping longitudinally or laterally to thereby adjust or extend to provide an elevated of selected and desired length and width dimension. A support structure is provided for receipt within the reservoir of desired ones of the profile forms. The support structure includes a structure for forming a conduit therethrough, a nailing strip connected to the structure, and a plurality of support bars resting atop the structure wherein concrete poured atop the profile form hardens threrearound securing the support structure within the deck. The profile forms are selectively removeable after the concrete is set and the nailing strip is visible on an underside of the beam formed from the plurality of forms.
In the first aspect of the apparatus and system as broadly described above, the profile is configured in an elongated, generally U-shaped configuration whereby concrete poured between the side walls of the U cures to form a beam for supporting the elevated deck thereabove. In a second aspect of the apparatus and system of the present invention, the profile forms present a generally inverted U-shaped configuration. In this second aspect of the system hereof, the reservoirs for forming the beams are located between two adjacent, side-by-side profiles. The profiles may be overlapped longitudinally to lengthen the resulting beam and deck, and the number of profiles placed side-by-side in generally parallel relationship may be increased to provide the desired lateral dimension to the resulting deck. Advantageously, the profiles may be made of a standard configuration to provide nesting for storage and transport, and overlapping so that a wide variety of length of the constructed deck may be accomplished by overlapping the profiles. Moreover, the laterally adjacent profiles may be overlapped, butted with one side edge against another, or spaced laterally so that a gap is presented between adjacent profiles. While it would be expected that such lateral spacing would present a gap which concrete would pass through, advantageously boards may be placed atop the side edges of the profiles to provide a dual purpose. First, the boards prevent the flow of concrete between the profiles. Moreover, the boards also remain embedded in the cured concrete at the bottoms of the beams formed in the reservoirs defined between the profiles and provide a nailing surface for receiving fasteners for ceilings, hangers and the like. Advantageously, these boards may be merely placed in position covering the side edges of the profiles without the necessity of further attachment to the profiles.
The second aspect of the system and apparatus hereof also advantageously may include end caps which may be attached to the ends of a profile or the ends of two profiles in a plurality of longitudinally placed and aligned series of such profiles to inhibit the passage of flowable concrete into the space below the profiles. The second aspect also contemplates the possible use of brackets to support forms to provide a passage in the elevated deck so that the base of the forms is positioned substantially coplanar with the bottom of the beams formed by the profile. Another preferable component of the second aspect of the invention is the use of one or a plurality of jump rails extending transverse to the longitudinal axis of the profiles to interconnect the profiles in desired spaced relationship.
The invention also includes the methods of forming an elevated concrete deck and support beams corresponding to the first and second aspects of the invention summarized above. The method of the invention may include pouring the elevated concrete deck either continuously with the upright walls of the structure, or first forming the upright walls and then using the formed walls as supports for the systems outlined above.
One method for forming an elevated concrete deck according to the principles of the invention involving the first aspect of the invention described above includes the activities of placing shoring beams between opposing side walls along a length of a structure and positioning a plurality of beam holders at predetermined intervals along the length of a wall on opposing walls of the structure and aligned with each of the shoring beams. A first profile form is positioned within a respective one of the plurality of beam holders and further profile forms are positioned adjacent thereto and along the length of a respective shoring beam extending to the opposing beam holder on the opposing wall. An end section of a profile form positioned in an adjacent beam holder is received by a lip in the end section of the adjacent profile form. The end section of each profile form received within a beam holder is positioned within a lip of an end section of an adjacent profile form along the width of the wall. Once the profile forms are positioned to form a mold of the deck, concrete is poured and received within each of the reservoirs formed by the profiles and atop the profiles creating a level deck connected to and supported by the beams. Upon hardening, the shoring beams are removed and the profiles disengaged from the beams and floor.
In the method involving the first aspect as summarized herein, an insert is positioned within the reservoir of each desired profile and used for forming a concrete beam and elevated deck. The insert includes a structure for forming a conduit through each beam adapted for receiving at least one of pipes, wires and other infrastructural elements. The conduit extends through the beam and parallel to the side walls of the structure. The insert further includes a plurality of stabilizing parts connected to the support structure for providing additional stability to the support beam once formed. The stabilizing bars extend perpendicular to the conduits. A nailing strip is connected to the support structure on a side opposite the stabilizing bars. Upon hardening of the concrete and forming of the beam, the profile form is removed and the nailing strip is exposed, or substantially so, on an underside of the beam. The nailing strip provides means for connecting a panel such as sheetrock thereto.
The method involving the second aspect of the invention is similar to the foregoing in many respects. The profiles are placed so that they extend, alone or in butted or overlapping combination, to substantially span two opposing walls of the structure atop shoring posts and beams as described above. The profiles may be supported at their ends on the structural walls or by boards supported on shoring members or attached to the walls of the structure, to forming panels, or other supports. End caps are attached to the ends of the profiles proximate the side walls of the structure to prevent concrete from leaking into the space below, and a barrier of boards or panels is provided to define the outer surface of the elevated deck in a position so that a surrounding wall is formed of the poured concrete of substantially the same depth as of the beams formed in the reservoirs. Because the profiles are placed in an essentially inverted U-shaped configuration, the reservoirs for the beams are provided between adjacent profiles. Tubular members of synthetic resin, metal or other material which will retain its shape under the weight of the poured concrete may be placed in alignment in an orientation transverse to the longitudinal axis of the profiles to receive conduit, pipes or the like as described above. Reinforcing material such as steel bar or webs are placed in the reservoirs between the profiles, and boards are placed atop the side edges of the profiles as described above. Brackets for supporting forms for passages through the deck are affixed to the underside of some profiles when desired, and jump rails attached to ensure proper positioning of the forms. Pins and wedges connect the jump rail, brackets, and overlapping profiles and end caps. After the concrete is poured atop the system and cured to sufficient hardness, the shoring members are removed, and the wedges knocked from their slots in the pins, the profiles, jump rails, brackets and passage-forming forms may be removed from the bottom of the support beams and deck for reuse. Removal of the profiles is especially easy because of the flexibility of the profiles laterally at their radiused corners. The side walls are free to flex inwardly and the profile readily releases from the concrete above. Only tubular members for the conduit and other infrastructural members, and the boards placed atop the side edges of the profile for use as nailing strips remain with the cured concrete of the elevated deck and support beams.
The resulting elevated deck not only is supported adequately below and to the structure walls, but is economical to construct because the forming members may be reused. Moreover, it is a fillerless forming system in that no special “filler” members must be constructed. Because the profiles are constructed to overlap, the profiles essentially provide a telescoping arrangement longitudinally. The ability to use boards both as nailers and to inhibit the flow of concrete through the openings in the end walls along the sides of the profiles thus provides a great deal of flexibility in terms of the spacing between the profiles, again avoiding the necessity of special “filler” forms. Thus, the inventory of the concrete contractor is reduced, and because the forming members may be reused to a great extent, the resulting elevated deck is constructed not only with consistently sufficient supporting beams having at least a minimum height and width, but also more economically than with other forming methods.
These and other advantages will be readily apparent to those skilled in the art with reference to the detailed description and drawings hereof.
In order that the invention may be more fully understood, it will now be described, by way of example, with reference to the accompanying drawings in which:
The following description describes in detail preferred embodiments of the invention hereof. This discussion should not be construed, however, as limiting the invention to those particular embodiments discussed. Practitioners skilled in the art will recognize numerous other embodiments as well with reference to the drawings and the following description.
Referring now to the drawings, in which similar reference characters denote similar elements throughout the several views,
The first end wall 22 includes a first stepped lip 25. The first stepped lip 25 includes a first section 24 connected to the first side wall 14. A second section 28 extends from the first section 24 at an end opposite the connection to the first side wall 14 so as to form a step between the first section 24 and second section 28. Each of the first section 24 and the second section 28 extends substantially parallel to the base 18. The second end wall 30 forms a planar surface extending from the second side wall 16 at an end opposite the base 18. The second end wall 30 extends substantially parallel to the base 18 a predetermined distance from the second side wall 16. The second end wall 30 functions to space the profile form 12 from an adjacently positioned profile form 12. Additionally, when profile forms 12 are positioned adjacently to one another along a length of a structure, the second side wall 30 is received by the second section 28 and against the lip 25 of the first end wall 22 thereby creating a level surface between the second end wall 30 and the first section 24 as shown in
A top plan view of a structure 42 within which an elevated deck will be formed is shown in
The respective pairs of beam holders 26 are spaced along the length of opposing structural walls 44 and each beam holder 26 secures a respective profile form 12. The reservoirs 20 of the profile forms 12 are positioned within and extend between the pair of beam holders 26 to define a support beam 48 which extends between the first pair opposing structural walls 44. Furthermore, when positioning the profile forms 12, the second end wall 30 of a first profile form 12 is received by and rests on the second section 28 of the first end wall 22 of a profile form 12 is received by and rests on the second section 28 of the first end wall 22 of a profile form 12 positioned adjacent along the length of the wall 44 thereby forming a level surface between the adjacent profile forms 12. When it is desired to have a space within he deck to be formed, the profile form illustrated in
The insert 31 is selectively received within the reservoir 20. The insert 31 sits on the base 18 of the reservoir 20. The insert 31 includes a support structure 33 defining a conduit 32 able to extend between the first wall 14 and the second wall 16 of the profile form 12 when positioned within the reservoir. The conduit 32 provides a channel that is able to selectively receive at least one of electrical wires and plumbing needed within the structure. Additionally, the conduit 32 may allow security and alarm wiring to pass therethrough. Furthermore, the beam profiles will permit heating ducts, air-conditioning ducts and other ducts to pass therethrough as well as allow for recessed lightening to be included therein. A post 36 extends from one side of the support structure 33. An attachment or nailing strip 38 is connected to the post 36 at an end opposite the support structure 33. When the insert is positioned within the reservoir, the attachment strip 38 is positioned atop the base 18 of profile form 12 and will remain exposed when the profile form 12 is removed from beam 48. The attachment strip 38 is accessible and allows for additional objects such as sheet rock to be selectively attached thereto. The insert 31 further includes a plurality of reinforcement beams 40 positioned on a side of the support structure 33 opposite the post 36 and extending perpendicular to the support structure 33. The reinforcement bars 40 extend parallel to the reservoir 20 when positioned therein and traverse the entire length of the profile form 12 as discussed above with respect to
Once the concrete has cured, the plurality of profile forms 12 can begin to be selectively removed from the beam 48 beginning at substantially a midpoint of the beam 48. The final profile forms 12 removed are the ones supported by the beam holder 26. Those profile forms are loosened and slid out from the beam holder 26 and removed therefrom and are able to be used at a later date. Once the profile form is removed, the attachment strips 38 are visible through a base of the beams formed by the concrete and are useable to secure items such as sheet rock to the beams.
Shown herein are three profile forms 12a, 12b, 12c. Each of the profile forms 12a, 12b, 12c are received within a respective beam support 26. Additionally, a deck support 53 is positioned on an inner top surface of each of the third wall 47 and the fourth wall 49. The deck support 53 extends on the third wall 47 and fourth wall 49 along width of the structure 42.
As shown herein, as first end wall 22a of the first profile form 12a receives the extension leg 29. The extension leg 29 is further supported by the deck support 47 on the third wall 47. The second end wall 30a of the first profile form 12a extends and is received by the first end wall 22b of the second profile form 12b. The second end wall 30b of the second profile form 12b extends and is received by the first end wall 22c of the third profile form 12c. The second end wall 30c of the third profile form 12c extends therefrom and is positioned atop the deck support 47 on the fourth wall 49. The manner by which the profiles 12a-c are connected provide supported for one another when adjacently positioned between the third wall 47 and the fourth wall 49. Additionally, the connection between the profiles 12a-c provide a solid flat surface over which the concrete will be poured.
Each representative profile form 12a-c includes a respective insert 31 in the reservoir 20 thereof. The insert 31 is described above with respect to
The shoring beam 52 is positioned directly under the base 18 of each of the profiles 12a-c and provides further support for the profiles 12a-c until the cement poured thereon hardens. The beams 48 and deck 50 are formed when concrete is poured over the surface created by the connection of the profile forms 12a-c to one another. The concrete is received within the reservoir 20 is filled, the concrete flows atop the end walls and extension legs 29 of the profile forms 12a-c. The concrete is added until a deck of predetermined thickness is reached. Upon hardening, the concrete within the reservoir 20 and around the inserts 31 form the beams 48a-c shown herein in the area below the dotted lines. Furthermore, the concrete atop the profile forms 12 and the beams 48 form the elevated deck 50. The beams 48 technically are formed integral with the deck 50 but are described as a separate object for ease of explaining the structure formed using the system 10. Once the concrete has hardened and cured such that the beams 48 can support the load of the deck 50 and anything positioned thereon, the at least one shoring beam 52 can be removed. Once removed, the profile forms 12a-c can also be removed thereby leaving an elevated deck 50 and support beams 48. When the profile forms 12a-c are removed, the conduits 32 extending through each respective beam 48a-c accessible. Furthermore, the conduits 32 are aligned with one another along the length of the structure 42. The aligned conduits allow an object such as electrical wiring and/or plumbing pipes to pass therethrough and extend along the length of the structure 42. The object may pass through an opening proximate at least one of the conduit 32 in the first beam 48a to the conduit 32 in the second beam 48b and further through the conduit 32 of the third beam 48c. Thus, the object can extend parallel to the first pair of opposing walls 44 and along the length of the structure 42.
While only a single shoring beam 52 and a single line of profile forms 12a-c are shown in
When the area within the walls 44, 46 as shown in
The profile 102 as shown in
The profiles 102 are elongated and extend longitudinally along an axis A. The profiles 102 may be constructed of various desired lengths but are preferably configured with a common cross-sectional profile for nesting during transport and for mounting in overlapping relationship, as illustrated by profile 102B having a first end 132 which overlaps the second end 134 of the profile 102A as illustrated in
The end cap 106 is also configured to nest with profile 102 and is also preferably formed of sheet aluminum, and thus has a cross-sectional configuration substantially the same as that of the profile 102. The end caps 106 are typically much shorter longitudinally than the profiles 102, as seen in
The system 100 further includes a jump rail 108 which facilitates temporary support and positioning of the profiles 102. The jump rail 108 includes an elongated member 156 preferably forged or cast of aluminum or steel which is provided with a plurality of holes 158 arrayed along the length of the jump rail 108 at close intervals, typically about 1 to 4 holes per inch. As can be seen in the drawings, the jump rail 108 is intended to be positioned below the end walls 126 and 128 of a profile (or end walls 150 and 152 of an end cap) and oriented transverse to the longitudinal axis of the profile, to thereby receive the pins 112 extending through the mounting holes 130 and the holes 158 of the jump rails. The close spacing of the holes 158 permits the profiles 102 to be positioned at desired widths, either with their end walls overlapping, butted, or spaced apart, depending on the desired spacing between the joists formed between the side walls of adjacent profiles 102. When the side edges of the end walls 126 and 128 of adjacent profiles 102 are spaced apart, as seen in
The system 100 further facilitates the formation of an internal passage 162. As used herein, a passage is any opening in the deck 50, and may include ventilation passages, plumbing or fireplace chases, or larger openings such as for atriums or stairway passages, the latter being illustrated in
Also, in order to facilitate other trades in the installation of plumbing, electrical wires or conduit, or other useful utilities, the system 100 contemplates that ports 190 as shown in
The use of the system 100 is in many ways similar to the use of the system 10. After the walls 43, 45, 47 and 49 and the 56 is poured, the system 100 is initially positioned. In pouring the walls 43, 45, 47 and 49, it may be desirable to pour the walls to include an elevated ledge 196 proximate to the upper end 198 of the walls 43, 45, 47 and 49. This ledge may 196 be used as a temporary support but more advantageously, may receive a portion of the poured concrete for the deck thereon to provide greater structural integrity. Also, the deck support 53 is positioned along the inside surface of the walls as desired, such as the third wall 47 and the fourth wall 49 which also provides a member to receive nails and other fasteners as desired. Deck barriers 200 are also preferably placed outside the perimeter on the outer surface of the walls 43, 45, 47 and 49 to contain the flowable concrete during the pour and during curing. The foundation floor 56 is poured within the walls 43, 45, 47 and 49, and after curing, the shoring structures are placed. These include preferably adjustable shoring posts 54 and shoring beams 52. As may be seen in
The profiles 102 are then laid atop the shoring beams 52 and for typical applications will lie in a substantially common, horizontal plane so that the deck to be formed is flat and level. The profiles 102 are typically laid parallel to one another and transverse, and most preferably perpendicular, to the primary shoring beams 52, and the concrete-receiving surface of the side walls, end walls and bridge thereof may be coated with oil or other release coating to facilitate removal of the profiles after the concrete cures. The profiles 102 are advantageously configured with one another to overlap at their ends as desired, so as to provide a fillerless system 100 such that profiles 102 can be provided, for the most part except for the creation of internal passages, of a common length. The ability to overlap allows the profiles 102 to be combined to extend substantially the entire width of the structure 42 (that is, between walls 43 and 45). In addition, the profiles 102 need not lie in abutment to one another, but may be spaced apart in parallel alignment to thicken the width of the beams 48 and to allow for structures having a variety of different lengths (that is, between walls 47 and 49).
After the profiles are positioned as desired, the jump rails 108 may be placed on the underside of the end walls of the profiles 102 and the end caps 106. In addition, the framing for the passage is constructed and positioned, supported by the brackets 110 and the shoring beams 52B and other supports as shown in
The concrete is then poured to fill between the profiles, around the end caps, and over the bridges to create the beams 48 and deck 50. After the concrete cures to a sufficient self-sustaining condition as determined by the contractor, the shoring posts 54 and shoring beams 52, as well as other supports not remaining with the completed structure, are removed. The wedges 114 are driven from the slots of the pins 112, and the jump rails 108 and brackets 110 are removed from the underside of the profiles 102 and end caps 106. The profiles 102 and end caps 106, whose divergent sidewalls are able to flex inwardly toward each other, are readily released from the deck 50 and beams 48 by tapping on the end walls. This causes the first side wall 116 to move toward the other divergent side wall 118 of the profile 102 (or end cap 106), and thus away from the opposing side wall of the adjacent profile which cooperatively formed the reservoir and thus the beam therebetween, and to release the profile 102 from the concrete thereabove. On the other hand, with respect to the profile 12, the first and second side walls 14 and 16 diverge from one another and form the reservoir and support beam for the deck in the system 10, and thus to remove the profile 12 from the deck 50 and support beam 48 in system 10, the side walls 14 and 16 are moved away from one another along their respective connections to the base as indicated by the letters A in
It may be appreciated by those skilled in the art that the description and drawings show the use of the system of the present invention in the context of forming an elevated deck above a foundation floor. It is to be understood that the system and its method of use may be repeated, for example, on the elevated deck as completed, in use on subsequent superposed floors, such that elevated concrete decks may be successively formed one above another in accordance with the invention as described, and is not limited to a single story above, for example, a basement.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claims, the invention is not intended to be limited to the detailed description set forth above, since it will be understood by those skilled in the art that various omissions, modifications, substitutions and changes in the form and details of the system and its components and the methods of forming the elevated concrete deck can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of the prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
This application claims the benefit of U.S. Provisional Application No. 60/756,506 filed Jan. 5, 2006.
Number | Date | Country | |
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60756506 | Jan 2006 | US |