SUPPORT PEDESTAL ASSEMBLY INCLUDING A STABILIZING COLLAR FOR STABILIZING A SUPPORT STRUCTURE
A support structure for elevating a building surface above a fixed surface having stability bracing to provide increased stability to the structure. The support structure includes a plurality of support pedestals that are disposed in spaced-apart relation on a fixed surface. A plurality of braces are attached to adjacent support pedestals to interconnect the support pedestals. Interconnecting the support pedestals in such a manner creates a stable support structure that can be utilized in unstable environments, such as seismically active geographic areas. The support pedestals can be adjustable-height support pedestals.
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This application is a continuation of U.S. patent application Ser. No. 13/477,722, filed May 22, 2012, entitled “STABILIZING COLLAR FOR BRACING A SUPPORT STRUCTURE,” which is a continuation-in-part of U.S. application Ser. No. 12/505,217, filed Jul. 17, 2009, entitled “STABILITY BRACING OF A SUPPORT STRUCTURE FOR ELEVATING A BUILDING STRUCTURE,” now U.S. Pat. No. 8,181,399, each of which applications are incorporated herein by reference in their entirety.
BACKGROUND OF THE INVENTION1. Field of the Invention
This invention relates to the field of support structures for supporting an elevated surface above a fixed surface, such as for elevated floors, decks and walkways.
2. Description of Related Art
Elevated building surfaces such as elevated floors, decks, terraces and walkways are desirable in many environments. One common system for creating such surfaces includes a plurality of surface tiles, such as concrete tiles (pavers), stone tiles or wood tiles, and a plurality of spaced-apart support pedestals upon which the tiles are placed to be supported above a fixed surface. For example, in outdoor applications, the surface may be elevated above a fixed surface by the support pedestals to promote drainage, to provide a level structural surface for walking, and/or to prevent deterioration of or damage to the surface tiles. The pedestals can have a fixed height, or can have an adjustable height such as to accommodate variations in the contour of the fixed surface upon which the pedestals are placed, or to create desirable architectural features.
Although a variety of shapes are possible, in many applications the surface tiles are rectangular in shape, having four corners. In the case of a rectangular shaped tile, each of the spaced-apart support pedestals can therefore support four adjacent surface tiles at the tile corners. Stated another way, each rectangular surface tile can be supported by four pedestals that are disposed under each of the corners of the tile. Large or heavy tiles can be supported by additional pedestals at positions other than at the corners of the tiles.
One example of a support pedestal is disclosed in U.S. Pat. No. 5,588,264 by Buzon, which is incorporated herein by reference in its entirety. The support pedestal disclosed by Buzon can be used in outdoor or indoor environments and is capable of supporting heavy loads applied by many types of building surfaces. The pedestal includes a threaded base member and a threaded support member that is threadably engaged with the base member to enable the height of the support pedestal to be adjusted by rotating the support member or the base member relative to the other. The support pedestal can also include a coupler member disposed between the base member and the support member for further increasing the height of the pedestal, if necessary.
Support pedestals are also disclosed in U.S. Pat. No. 6,363,685 by Kugler and U.S. Patent Publication No. 2004/0261329 by Kugler et al., each of which is also incorporated herein by reference in its entirety.
SUMMARY OF THE INVENTIONOne problem that is associated with some support structures for elevated surfaces is that the support structures do not provide adequate structural stability in certain unstable environments. As a result, the support structures cannot be safely utilized in certain seismically active geographic areas, high wind areas or other locations that may be subject to disruptive vibrations of the fixed surface.
Another problem associated with some support structures for elevated surfaces is that the safely obtainable height of the support pedestals is limited due to the increasing instability of the support pedestals as the height of the pedestals, and hence the center of gravity of the pedestals, is increased. The increased height of the center of gravity further compounds the problems associated with disruptive vibrations of the underlying surface.
It is therefore an objective to provide a support structure for an elevated surface, where the support structure has improved structural stability. It is also an objective to provide a support structure that can enable the safe construction of an elevated surface having an increased height above the fixed surface as compared to existing support structures, particularly in areas that are prone to disruptive vibrations.
In one exemplary embodiment, a support structure for elevating a building surface above a fixed surface is provided. The support structure can include a plurality of support pedestals that are disposed in spaced-apart relation on a fixed surface. The support pedestals can include a base member that is adapted to be placed upon the fixed surface and a support plate disposed over the base member. A plurality of braces are each operatively attached to at least two adjacent support pedestals to interconnect the support pedestals and form a stable support structure. In this regard, a plurality of pedestal attachment elements can be disposed around a perimeter of the support pedestal, and the braces can include brace attachment elements disposed in end portions of the braces such that the brace attachment elements can be secured to the pedestal attachment elements to secure the braces to the support pedestals.
In one aspect, the brace attachment elements comprise attachment knobs and the pedestal attachment elements comprise apertures, wherein the attachment knobs are disposed through the apertures to secure the braces to the support pedestals. In another aspect, the brace attachment elements comprise apertures and the pedestal attachment elements comprise attachment knobs, where the attachment knobs are disposed through the apertures to secure the braces to the support pedestals.
The support pedestals can have a fixed height, and in one aspect the support pedestals can have an adjustable height. In another aspect, the braces can include arcuate end portions that are attached to the support pedestals. The arcuate end portions can each comprise at least one brace attachment element such as an aperture.
According to another aspect, one or more of the braces can have an adjustable length. Adjustable length braces can be particularly advantageous to accommodate the use of surface tiles having edge portions of different lengths, e.g., rectangular tiles that are not square.
According to another aspect, the pedestal attachment elements are disposed around a perimeter of the pedestal base members. For example, the pedestal attachment elements can be disposed around a base plate that forms the bottom surface of the base member. In this regard, the attachment elements can include attachment knobs that are permanently or removably affixed to the base member.
In another aspect, the pedestal attachment elements can be disposed on a stabilizing collar that is operatively attached to the support pedestal. For example, the stabilizing collar can be threadably attached to the support pedestal whereby the height of the stabilizing collar can be adjusted. In one aspect, the pedestal attachment elements disposed on the stabilizing collar include attachment knobs.
In one aspect, the support pedestals are not attached to the fixed surface. For example, the fixed surface can be natural ground or another surface that is not amenable to the attachment of the support pedestals to the fixed surface. In another aspect, the support pedestals are non-metallic support pedestals, such as plastic support pedestals that are resistant to rotting and corrosion due to exposure to outdoor environments. The braces can be fabricated from a variety of materials, preferably non-metallic materials such as plastic, wood and composite materials, e.g., fiber reinforced plastics.
According to another embodiment, a support structure for elevating a building surface above a fixed surface is provided. The support structure can include a plurality of height-adjustable support pedestals that are disposed in spaced-apart relation, the support pedestals including a base member that is adapted to be placed upon a fixed surface and a support plate disposed over the base member that is adapted to support a surface tile above the fixed surface. A plurality of attachment knobs are operatively disposed around the perimeter of the support pedestals and a plurality of braces are operatively attached to the support pedestals to interconnect the support pedestals. The braces can include end portions having at least one aperture, wherein the attachment knobs are disposed within the apertures to secure the braces to the support pedestals.
In one aspect, the attachment knobs can be disposed around the perimeter of the base member. In another aspect, the height-adjustable support pedestals can include a support member comprising a support plate, where the support member is threadably connected to the base member. In yet another aspect, the height adjustable support pedestals can include a coupling member (e.g., an extension member) operatively connecting the base member and a support member.
According to another aspect, the attachment knobs can be disposed on a stabilizing collar that is threadably attached to the support pedestal. In yet another aspect, the braces can have an adjustable length.
According to another embodiment, an elevated building surface assembly is provided. The assembly can include a plurality of support pedestals that are disposed in spaced-apart relation. The support pedestals can include a base member that is adapted to be placed upon a fixed surface and a support member that is disposed over and threadably connected to the base member. A plurality of braces can be attached to adjacent support pedestals to interconnect the support pedestals and form a stable support structure and a plurality of surface tiles can be placed upon the support members to form the elevated building surface. According to one aspect, the attachment knobs are disposed on a stabilizing collar that is threadably connected to the support pedestal. According to another aspect, the attachment knobs are disposed around a perimeter of the base member. According to yet another aspect, the braces have an adjustable length.
According to another embodiment, a method for constructing an elevated building surface comprising a plurality of surface tiles is provided. The method can include the steps of placing a plurality of height-adjustable support pedestals on a fixed surface in a spaced-apart relationship, the pedestals each including a base member. The support pedestals can be interconnected by attaching a brace to adjacent support pedestals. Surface tiles can be placed on the support pedestals to form the elevated building surface. According to one aspect, the fixed surface can have a sloped or otherwise uneven topography. According to another aspect, the step of attaching the brace can include placing at least one aperture in an end portion of the brace through an attachment knob that is disposed on a perimeter of the support pedestals.
In accordance with the foregoing embodiments and aspects, the support structure can provide increased structural stability. In one aspect, the support structure can be used to support elevated surfaces in seismically active geographic areas or in other areas where disruptive vibrations may occur, such as a train platform. Through interconnection of the support pedestals, the support pedestals can move in unison during a seismic event or other vibratory disruption to maintain the desired spacing between the support pedestals, and therefore continue to safely support surface tiles placed on the support pedestals and maintain the integrity of the building surface.
The support structure can have an increased structural stability, thereby enabling the use of support pedestals having an increased height without adversely affecting the stability of the elevated surface. For example, the support pedestals can have a height of greater than 24 inches and even up to about 36 inches or more.
The braces can be rapidly and easily attached to the support members during construction of the support structure. The braces can also be configured to prevent twisting of the support pedestals in relation to adjacent support pedestals.
Each of the surface tiles 102 is placed upon several support pedestals 201 to elevate the tile 102 above the fixed surface. As illustrated in
The support pedestals 201 are interconnected by a plurality of braces 204 that are attached to the support pedestals 201 and operatively connect each support pedestal with one or more adjacent support pedestals to form a stable support structure 200. The braces 204 interconnecting the support pedestals 201 can advantageously enhance the stability of the support structure 200 as compared to a structure utilizing support pedestals that are not interconnected and are free to move independently with respect to other support pedestals. For example, if one or more of the support pedestals 201 shift, such as during a seismic event or other disruption, the braces 204 will cause the interconnected support pedestals 201 to move essentially in unison such that the spacing between adjacent support pedestals remains substantially fixed. Therefore, the surface tiles 102 will remain supported above the fixed surface and the integrity of the building surface 101 will be maintained. Preferably, neither the braces 204 nor the support pedestals 201 are attached to the fixed surface.
A plurality of braces 204 are attached to and interconnect the support pedestals 201. For example, each brace 204 can operatively connect two adjacent support pedestals 201. As illustrated in
The support structure 200 comprising the support pedestals 201 interconnected with braces 204 can advantageously provide enhanced stability for the elevated building surface. For example, the support structure 200 can be used in seismically active geographic areas to improve the stability of the elevated building surface during seismic events. The support structure 200 can also be used in other areas that are prone to disruptive vibrations, such as train platforms, or in areas that are subject to high wind conditions. In this regard, the braces 204 can cause the support pedestals 201 to move essentially in unison, thereby maintaining the required spaced-apart relationship between support pedestals to keep the surface tiles supported. Such a stable structure may also be desired in other locations that are subject to periodic vibrations, such as a train platform.
The utilization of such braces 204 to interconnect the support pedestals 201 can also increase the safely obtainable height of the support pedestals. That is, the braces 204 can provide sufficient structural stability such that support pedestals 201 having a higher center of gravity can be safely utilized to elevate the building surface without undue risk of the building surface collapsing.
The braces 204 are therefore adapted to interconnect the support pedestals 201 and provide a sufficiently rigid lateral and vertical connection between the support pedestals such that the support pedestals move in unison, and such that the spacing among the support pedestals does not substantially change due to seismic events or other events that can cause movement of the building surface. In one embodiment, the braces 204 can also be sufficiently flexible to permit the braces to be placed over surfaces that are not completely flat while maintaining a rigid lateral connection among the support pedestals.
The braces 204 can have a variety of sizes, shapes and configurations.
The braces illustrated in
In one embodiment, the braces are elastic and sufficiently flexible to accommodate the placement of the support structure upon uneven fixed surfaces, while maintaining sufficient lateral rigidity to rigidly interconnect the support pedestals. In any respect, the braces 204 can be fabricated from a variety of materials. For example, the braces 204 can be fabricated from non-metallic materials, such as plastics, wood and composite materials. In one exemplary embodiment, the braces have a length of from about 1 foot to about 3 feet, and a thickness of from about ⅛″ to about ¼″.
Thus, braces are utilized to interconnect a plurality of support pedestals to form a support structure that supports the surface tiles to form the elevated building surface. The support pedestals that are useful for forming the support structure can have a variety of configurations. The support pedestals can have a fixed height, or can be height-adjustable support pedestals. Further, any combination of fixed height and height-adjustable support pedestals can be used to form the support structure. The support pedestals can also be fabricated from a variety of materials. Preferably, the support pedestals are fabricated from a non-metallic material, such as plastic that is resistant to rot and corrosion.
A support member 216 is adapted to be operatively connected to the base member 212 and includes a support plate 220 and a cylindrical support member extension 219 that extends downwardly from the support plate 220. The support member 216 includes support member threads (not illustrated) on an interior surface of the support member extension 216 that are adapted to threadably engage base member threads 218 to connect the support member 216 to the base member 212. Thus, the support member 216 can be mated directly to base member threads 218 and can be rotated relative to the base member 212 to adjust the height of the support pedestal 201. The support plate 220 is thereby disposed above the base member 212 to support surface tiles thereon. Although illustrated as having internal threads on the support member 216 and external threads on the base member 218, it will be appreciated that other configurations are possible, including external threads on the support member and internal threads on the base member. See, for example, U.S. Pat. No. 5,588,264 by Buzon and U.S. Pat. No. 6,363,685 by Kugler, each of which is incorporated herein by reference in its entirety. The support pedestal could also have a fixed height.
The support plate 220 includes a top surface 222 upon which the corners of adjacent surface tiles can be placed. Spacers 224 can be provided on the top surface 222 of the support plate 220 to provide predetermined spacing between adjacent surface tiles that form the elevated building surface. For example, the spacers 224 can be disposed on a crown member that is placed in a recess on the top surface 222 of the support plate 220. In this manner, the crown member can be rotated independent of the support member 216 to adjust the position of the spacers 224.
The support pedestal 201 also includes a support member 216 having a support plate 220 and a cylindrical support member extension 219 that extends downwardly from the support plate 220. A crown member 225 including tile spacers 224 is adapted to be placed in a recess 223 on the top surface 222 of the support member 216. In this manner, after placement of the support pedestal 201, the crown member 225 can be freely rotated in the recess 223 to accommodate the positioning of the surface tiles.
The support member 216 also includes support member threads 221 disposed on an inner surface of the support member extension 219. The support member threads 221 are adapted to rotatably engage the base member threads 218 to directly connect the support member 216 to the base member 212. In this manner, the height of the support pedestal 201 can be adjusted by rotating the support member 216 or the base member 212, relative to the other.
As illustrated in
Thus, the coupling member 234 can engage both the support member 216 and the base member 212 to couple the support member 216 to the base member 212 and provide an increased height for the support pedestal 201.
The support pedestal 201 also includes attachment knobs 226 disposed around the perimeter of the support pedestal. The attachment knobs 226 are adapted to be placed through apertures in a brace to secure the brace to the support pedestal.
Brace attachment elements in the form of apertures 208 in the end portion 206 of the braces 204 are placed over attachment knobs 226 and 228 to attach the braces 204 to the base member 212. After attachment of the braces 204, caps 232 can optionally be placed over the top of the knobs 226 and 228 to secure the brace 204 to the base member 212. For example, the caps 232 can frictionally engage the knobs 226 and 228 such that the brace 204 cannot be easily detached from the base member 212.
It will be appreciated from the foregoing that the support structure and the method for the assembly of the support structure provide a rapid means for an installer to interconnect a plurality of support pedestals by attaching and securing braces to the support pedestals during construction of the support structure.
In one embodiment, the pedestal attachment elements can advantageously be disposed on a stabilizing collar that is attached to the support pedestal such that the attachment elements are disposed around a perimeter of the support pedestal.
A securement mechanism such as a retaining ridge 258 can also be provided that is configured to secure the brace after placement of the brace aperture over the attachment knob 252, e.g., so the brace does not inadvertently detach from the attachment knob. Thus, the aperture in the brace can have a diameter that is slightly smaller than the diameter of the retaining ridge so that the brace can be “snap-fit” onto the attachment knob. The retaining ridge 258 can be integrally formed with the attachment knob 252, and the attachment knobs 252 can be permanently or removably affixed to the flange 254. For example, the flange 254 could include apertures and removable attachment knobs could be inserted through the apertures in the flange 254 from the bottom of the flange 254. Alternatively, the attachment knobs 252 may be integrally molded with the flange 254. It will also be appreciated that the stabilizing collar could include attachment elements that are apertures, such as where the braces include similarly configured attachment knobs that are adapted to fit into the apertures.
Use of a plurality of stabilizing collars 250a, 250b on at least some of the support pedestals 201 advantageously provides a more structurally robust assembly 100 that is more likely to move in unison during a seismic or other type event. Furthermore, doing so allows for more flexibility in the specific types of support structures 200 that are possible. For instance, engaging multiple stabilizing collars 250a, 250b on a first support pedestal 201 could advantageously allow the first support pedestal 201 to be attached to adjacent second and third support pedestals 201, where the adjacent second support pedestal 201 is at a slightly higher grade or elevation that the first support pedestal 201 and where the adjacent third support pedestal 201 is at a slightly lower grade or elevation than the first support pedestal. As another example, first and second support collars 250a, 250b on the same support pedestal could be rotated to achieve different orientations of the respective knobs 252 or other pedestal attachment elements. Furthermore, while the stabilizing collars 250 have been disclosed as having knobs 252 receivable within apertures 208 of the braces 204, it is also envisioned that at least some of the stabilizing collars 250 could have apertures disposed on the flange 252 that are adapted to receive knobs or other protrusions disposed on the ends of the braces 204. Still further, it is contemplated that at least some stabilizing collars 250 could have both knobs 252 and apertures on or in the flange 252 and/or a support pedestal 201 could have one stabilizing collar 250 with just knobs 252 thereon and another stabilizing collar with just apertures therein. Further arrangements are also envisioned and included within the scope of the present disclosure.
While various embodiments of the present invention have been described in detail, it is apparent that modifications and adaptations of those embodiments will occur to those skilled in the art. However, is to be expressly understood that such modifications and adaptations are within the spirit and scope of the present invention.
Claims
1-28. (canceled)
29. A method for constructing an elevated building surface comprising a plurality of surface tiles operatively disposed in spaced-apart relation, comprising the steps of:
- placing a plurality of support pedestal assemblies on a fixed surface in operative spaced-apart relation, each of the support pedestal assemblies comprising: a substantially cylindrical extension disposed between a base plate and a support plate, the cylindrical extension comprising external extension threads along at least a portion thereof, and a stabilizing collar comprising internal collar threads that are threadably engaged with the external extension threads, the stabilizing collar comprising a plurality of pedestal attachment elements disposed around a perimeter of the stabilizing collar;
- adjusting a height of a first stabilizing collar relative to a first base plate by rotating the first stabilizing collar relative to a first cylindrical extension of a first support pedestal assembly, wherein the first support pedestal assembly includes a height between the first base plate and a first support plate of the first support pedestal assembly, and wherein the step of adjusting the height of the first stabilizing collar occurs free of changing the height of the first support pedestal assembly;
- attaching a brace to the pedestal attachment elements of the first stabilizing collar; and
- placing surface tiles on the plurality of support pedestal assemblies to form an elevated building surface.
30. The method recited in claim 29, wherein the step of attaching a brace to the pedestal attachment elements comprises placing at least one aperture disposed in an end portion of the brace over at least one attachment knob disposed on the first stabilizing collar.
31. The method recited in claim 29, wherein the step of attaching a brace to the pedestal attachment elements comprises placing at least one attachment knob disposed on an end portion of the brace into at least one aperture disposed in the first stabilizing collar.
32. The method recited in claim 29, further comprising the step of attaching the brace to a pedestal attachment element of a second stabilizing collar of a second support pedestal assembly that is adjacent the first support pedestal assembly.
33. The method recited in claim 29, wherein the stabilizing collar is a first stabilizing collar that is threadably engaged with the external extension threads at a first vertical position above the base member, wherein at least a portion of the support pedestal assemblies further comprise a second stabilizing collar comprising internal collar threads that are threadably engaged with the external extension threads at a second vertical position above the base member that is different than the first vertical position, and comprising a plurality of pedestal attachment elements disposed around a perimeter of the second stabilizing collar, and wherein the attaching step comprises attaching a brace to the pedestal attachment elements of the first and second stabilizing collars.
34. The method recited in claim 29, wherein the base plate of at least some of the support pedestal assemblies comprises a plurality of pedestal attachment elements disposed around a perimeter thereof, and wherein the attaching step comprises attaching a brace to the pedestal attachment elements of the stabilizing collars and the pedestal attachment elements of the base plates to interconnect the support pedestal assemblies.
35. The method recited in claim 29, further including:
- adjusting the height of the first support pedestal assembly.
36. The method recited in claim 35, wherein the step of adjusting the height of the first support pedestal assembly occurs free of adjusting the height of the first stabilizing collar.
37. The method recited in claim 29, wherein the surface tiles are spaced from the brace.
38. A method for use with constructing an elevated building surface assembly, comprising the steps of:
- placing a plurality of support pedestal assemblies on a fixed surface in operative spaced-apart relation, each of the support pedestal assemblies comprising: a substantially cylindrical extension disposed between a base plate and a support plate, the cylindrical extension comprising external extension threads along at least a portion thereof, and a stabilizing collar comprising internal collar threads that are threadably engaged with the external extension threads, the stabilizing collar comprising a plurality of pedestal attachment elements disposed around a perimeter of the stabilizing collar, wherein a first of the support pedestal assemblies includes a height between a first base plate and a first support plate, and wherein a first stabilizing collar of the first support pedestal assembly includes a height relative to the first base plate;
- securing at least one brace to at least one of the plurality of pedestal attachment elements of the first stabilizing collar; and
- adjusting the height of the first support pedestal assembly free of adjusting the height of at least one of the first stabilizing collar and the at least one brace.
39. The method recited in claim 38, wherein an end of the brace includes a height between the first stabilizing collar and the first base plate, and wherein the step of adjusting the height of the first support pedestal assembly occurs free of adjusting the height of the brace.
40. The method recited in claim 38, wherein the brace is non-movably secured relative to the first stabilizing collar.
41. The method recited in claim 38, further comprising:
- placing surface tiles on the plurality of support pedestal assemblies to form an elevated building surface.
42. The method recited in claim 41, wherein the surface tiles are spaced from the brace.
43. The method recited in claim 38, wherein a second of the support pedestal assemblies includes a height between a second base plate and a second support plate, wherein a second stabilizing collar of the second support pedestal assembly includes a height relative to the second base plate, and wherein the method further comprises:
- securing the at least one brace to at least one of the plurality of pedestal attachment elements of the second stabilizing collar; and
- adjusting the height of the second support pedestal assembly free of adjusting the height of at least one of the second stabilizing collar and the at least one brace.
44. The method recited in claim 43, wherein the height of the first support pedestal assembly is different than the height of the second support pedestal assembly.
45. The method recited in claim 43, wherein the height of the first support pedestal assembly is the same as the height of the second support pedestal assembly.
Type: Application
Filed: Nov 27, 2013
Publication Date: Mar 27, 2014
Applicant: United Construction Products, Inc. (Denver, CO)
Inventors: William E. Kugler (Denver, CO), Steven J. Knight (Littleton, CO)
Application Number: 14/091,662
International Classification: E04G 21/14 (20060101); E04F 15/024 (20060101);