US20140260082A1 - Apparatus and method for an adjustable column - Google Patents
Apparatus and method for an adjustable column Download PDFInfo
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- US20140260082A1 US20140260082A1 US13/844,546 US201313844546A US2014260082A1 US 20140260082 A1 US20140260082 A1 US 20140260082A1 US 201313844546 A US201313844546 A US 201313844546A US 2014260082 A1 US2014260082 A1 US 2014260082A1
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- cap plate
- plate
- fastener
- adjustment mechanism
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- 230000007246 mechanism Effects 0.000 claims abstract description 74
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- 230000013011 mating Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
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- 239000010959 steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
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- 238000011900 installation process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 239000000725 suspension Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/005—Girders or columns that are rollable, collapsible or otherwise adjustable in length or height
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2253—Mounting poles or posts to the holder
- E04H12/2269—Mounting poles or posts to the holder in a socket
Definitions
- the present disclosure relates to columns used to support structures and in particular to columns that can be adjusted in height.
- Adjustable columns that have been developed to address this problem are typically telescopic in nature with a first tubular post sliding within a second tubular post. A cross-bar is inserted through holes aligned in the first and second posts to fix the height of the column. A cap plate is connected to a threaded bar and the bar is then rotated to elevate the cap plate for the final height adjustment.
- These adjustable columns can be load limited compared to traditional columns and are vulnerable to tampering.
- Alternative adjustable columns insert one or more shim plates at the base to increase the height of the column while the column is manually held upright for connection with pre-existing apertures in a beam. Both of these configurations require multiple personnel to retain the column in position while the height of the column is adjusted and the alignment secured.
- An adjustable column is needed that can be readily installed by a single worker with the use of readily available tools that can also advantageously provide uplift protection.
- An adjustable column that comprises a tubular column that has a first end portion and an opposed second end portion.
- the first end portion includes a plate positioned inside of and connected to the tubular walls of the column.
- the plate or column plate is recessed below a rim of a first end portion of the column.
- the column plate defines an aperture.
- a cap plate has a first side and an opposed second side.
- the first side of the cap plate is fixed to the column and the opposed second side of the cap plate is adapted to interface with a beam.
- the cap plate defines a receptacle that is a countersink that has a tapered structure that defines a first aperture.
- a first fastener with a countersunk head is received by and mates with the countersink in the cap plate.
- the first fastener installed in the countersink includes a top of the head of the first fastener approximately flush with the second side of the cap plate.
- the cap plate adapted to secure the column to the beam.
- the cap plate defines second apertures and includes second fasteners that are positionable in the second apertures that are adapted to secure the cap plate to the beam.
- the adjustment mechanism connects to the second end portion of the column.
- the adjustment mechanism includes a base plate, a base flange and a threaded rod.
- the base plate is fixedly connected to the threaded rod,
- the base flange defines a threaded aperture that connects with the threaded rod to adjust the height of the column.
- the base plate is adapted to be positioned on a floor.
- the base flange is connected to the second end portion of the column.
- the cap plate is connected to the beam and the column is suspended from the cap plate.
- the second end portion of the column is adapted to provide an adjustable load bearing interface between the floor and a terminal end of the second end portion of the column.
- the adjustment mechanism adjusts to extend between the suspended column and the floor.
- the extended adjustment mechanism is adapted to place the column in a load bearing position between the beam and floor.
- the cap plate can have a structure that includes a base that is connected to two approximately parallel sidewalls.
- the cap plate has an approximately U-shape that is adapted to receive the beam between the sidewalls.
- the countersink defined in the cap plate includes multi-sided walls.
- the head of the fastener has mating multi-sided walls that engage and fix the head of the first fastener from rotational movement in the countersink receptacle.
- the second apertures are defined in the sidewalls of the cap plate.
- the countersink structure in the cap plate in combination with, the flat headed countersink first fasteners provide a flush alignment with the second side of the cap plate and a flat mating surface that is adapted to fit flush against a bottom of the beam. This combination is adapted to provide a compact secure fit between the cap plate and the beam.
- the single first fastener provides a simplified direct attachment between the cap plate and the first end portion of the column.
- the single threaded rod of the adjustment mechanism advantageously provides a simplified and direct adjustable attachment between the base plate and the base flange.
- FIG. 1 is a front view of an adjustable column that includes a column, a cap plate and an adjustment mechanism, the adjustable column constructed in accordance with the present disclosure
- FIG. 2 is a top and side perspective view of a first end portion of the column and a perspective view of a first side of the cap plate of the adjustable column of FIG. 1 ;
- FIG. 3 is a bottom and side perspective view of a first embodiment of the adjustment mechanism of the adjustable column of FIG. 1 ;
- FIG. 4 is a side and top perspective view of a second embodiment of the adjustment mechanism of the adjustable column of FIG. 1 ;
- FIG. 5 is a front and upwardly directed perspective view of the connecting of the adjustable column of FIG. 1 to an external beam;
- FIG. 6 is a close-up front and downwardly directed perspective view of the adjusting of the height of the adjustable column of FIG. 1 into a load bearing position;
- FIG. 7 is a front and downwardly directed perspective view of the adjusting of the height of the adjustable column and adjustment mechanism of FIG. 4 into a load bearing position;
- FIG. 8 is a front and downwardly directed perspective view of the adjustable column and adjustment mechanism of FIG. 7 in a load bearing position.
- FIG. 9 is a front view of an another embodiment of an adjustable column.
- FIG. 10A is a top perspective view of a first end portion of the column and a first cap plate of the adjustable column of FIG. 9 ;
- FIG. 10B is a top perspective view of the first end portion of the column and a second cap plate of the adjustable column of FIG. 9 ;
- FIG. 11 is side perspective view of the first end portion of the column and first cap plate of the adjustable column aligned with and adapted to connect to a beam;
- FIG. 12 is side perspective view of the first end portion of the column and second cap plate of the adjustable column aligned with and adapted to connect to the beam;
- FIG. 13 is a side and top perspective view of the adjustable column that includes the first cap plate in position and adapted to support the beam;
- FIG. 14 is a side and top perspective view of the adjustable column that includes the second cap plate in position and adapted to support the beam.
- an apparatus for an adjustable column 10 includes an elongate column 12 that has a first end portion 14 and an opposed second end portion 16 , a cap plate 18 and an attachment mechanism 20 .
- First end portion 14 connects to cap plate 18 and second end portion 16 connects to adjustment mechanism 20 .
- Column 12 defines a central longitudinal axis and preferably has a cylindrical shape. In this preferred embodiment, column 12 is an exemplary lally type column.
- cap plate 18 is a planar shaped plate that defines at least two key hole type apertures 28 that are selective retention mechanisms for cap plate 18 with fasteners 32 .
- cap plate 18 can selectively define one or more apertures 29 that are cylindrical shaped through holes.
- a receptacle or nut 30 is connected to a first side of cap plate 18 .
- nut 30 interfaces with an anchor bolt 42 that is preferably a Y2 inch diameter threaded bolt.
- the opposing side of cap plate 18 is adapted to interface with an external structure.
- cap plate 18 is an approximately 5% inches wide, approximately eight (8) inches long and approximately 3 ⁇ 4 of an inch thick plate.
- Key hole apertures 28 have a first portion and a second portion.
- the first portion of each aperture 28 has a first cross-sectional area parallel to the plane defined by plate 18 that tapers or reduces to a second portion with a second cross-sectional area parallel to the plane of plate 18 in the second portion.
- the first portion of aperture 28 has a larger cross-sectional area than the cross-sectional area of the second portion.
- Bolts 32 have heads that will fit through the first portion, but cannot fit through the reduced area of the second portion of key hole apertures 28 .
- Key hole apertures 28 are preferably aligned in a single direction, but it is understood that apertures 28 can have any directional alignment that facilitates the securing and retaining of cap plate 18 to the external structure.
- Alternative equivalents of the selective retention mechanism of cap plate 18 or means for selectively retaining plate 18 with fasteners 32 includes configurations in which select apertures in cap plate 18 allow the passage of a head of fastener 32 and a slotted washer, pin and/or slotted plate is positioned between cap plate 18 and the head of fastener 32 to retain cap plate 18 with the head of fastener 32 .
- Column 12 is preferably a Lally type column that has a steel outer tube 34 that defines a rim 36 that is a portion of the terminal end of first end portion 14 of column 12 .
- Column 12 includes a concrete filling 38 with a terminal end that is approximately flush with rim 36 .
- First end portion 14 includes a notch or aperture 40 in an outwardly directed face of the terminal end of concrete 38 that extends a predetermined distance along and is aligned with the central longitudinal axis of column 12 .
- An anchor bolt 42 is positioned in concrete filling 38 that extends into notch 40 and in the opposing direction along the central longitudinal axis towards second end portion 16 .
- Column 12 has an outside diameter in this exemplary preferred embodiment that is approximately four (4) inches in diameter.
- Notch 40 has a depth along the central longitudinal axis and cross-sectional area perpendicular to the longitudinal axis that receives nut 30 of plate 18 .
- Bolt 42 has a first terminal end 44 that is approximately aligned with rim 36 of tube 34 .
- Anchor bolt 42 and nut 30 secure the first side of cap plate 18 in direct contact with the terminal end of first end portion 14 .
- Anchor bolt 42 provides the structural integrity necessary for bolt 42 to provide uplift protection and at least support the weight of adjustable column 10 .
- adjustment mechanism 20 includes a base flange 22 , a base plate 24 and four load bearing fasteners 26 .
- Base flange 22 connects to second end portion 16 of column 12 .
- Base flange 22 preferably defines two apertures 46 that receive concrete screws 48 that secure base flange 22 to concrete filling 38 of the terminal end of second end portion 16 .
- alternative methods of connecting flange 22 and column 12 include those commonly used in the industry such as welding, adhesives and/or an anchor bolt, for example.
- Base flange 22 has four apertures 50 that are in close proximity to the outer surface of column 12 .
- Apertures 50 have an equidistant arrangement that form a square around column 12 .
- Each fastener 26 has a head and an opposed distal or second end.
- Each fastener 26 is preferably a hardened set screw suitable for load bearing applications of adjustable column 10 and to provide for the relative movement between base flange 22 and base plate 24 .
- Fasteners 26 preferably have a diameter of 1 ⁇ 2 inch and a length of approximately 31 ⁇ 2 inches.
- base plate 24 includes two diagonally opposed apertures 52 and two diagonally opposed notches 53 that are aligned with apertures 50 .
- Fasteners 26 , apertures 50 , apertures 52 and notches 53 are aligned with the central longitudinal axis.
- Apertures 52 can be through holes or terminate in plate 24 .
- Two fasteners 26 are connected to both threaded apertures 50 in base flange 22 and threaded apertures 52 in base plate 24 to securely couple base flange 22 to base plate 24 .
- the remaining two fasteners 26 are connected to threaded apertures 50 and the distal end of each fastener 26 is positioned in one of notches 53 .
- Notches 53 are non-threaded depressions in plate 24 that are sized and dimensioned to receive the second end of fasteners 26 .
- Uplift protection for adjustable column 10 is provided by securing attachment mechanism 20 to an external structure.
- Fasteners such as concrete screws 48 connect to the external structure through additional apertures in base plate 24 .
- Fasteners 26 can also extend through apertures 52 in base plate 24 and have terminal ends suitable to connect with an external structure.
- base plate 24 includes four notches 53 that receive the second ends of fasteners 26 .
- This variation provides an increased ability to compensate for angular variations in the external surface upon which base plate 24 is positioned.
- Base plate 24 is connected to base flange 22 by a band 54 .
- band 54 preferably extends under base plate 24 and is secured to base flange 22 using screws 55 .
- Band 54 is preferably metal, but band 54 can be fabricated of alternative materials such as composites, polymers and fiberglass, for example, that connect base flange 22 and base plate 24 together in a secure load bearing position.
- uplift protection is provided by the embedding of adjustment mechanism 20 in a layer of poured concrete such as concrete floor 6 (see FIG. 6 ).
- Uplift protection can be also provided by using one or more concrete screws, such as fasteners 48 through additional holes in plate 24 and/or band 54 and into an external surface such as sub-floor 4 , for example (see FIG. 6 ).
- a second preferred embodiment of adjustment mechanism 20 includes a base plate 56 and a sleeve 58 .
- Plate 56 has two or more apertures 60 that receive fasteners 62 , such as concrete screws that connect plate 56 to an external surface for uplift protection.
- Sleeve 58 connects to base plate 56 and defines an aperture 59 that receives column 12 .
- the second embodiment of adjustment mechanism 20 also includes a set of discs 64 that has a plurality of individual discs that range in thickness between approximately 1/16 of an inch and approximately one (1) inch.
- Set of discs 64 preferably has planar parallel opposing faces and an outside diameter that is approximately equivalent to the outside diameter of column 12 .
- At least one of set of discs 64 is selectively positioned on base plate 24 to provide a continuous load bearing interface between the terminal end of second end portion 16 of column 12 and base plate 56 .
- a recess is preferably defined in base 56 that receives and aligns the initial disc of set of discs 64 with the connection for sleeve 58 .
- Sleeve 58 connects to second end portion 16 of column 12 and flange 56 to align column 12 with set of discs 64 and create an integrated assembly of attachment mechanism 20 and column 12 .
- Sleeve 58 encloses set of discs 64 between base plate 56 and the terminal end of second end portion 16 of column 12 .
- Sleeve 58 can connect to base plate 56 and column 12 using any means of mechanical connection that provides adequate uplift protection.
- sleeve 58 is secured to column 12 by at least one aperture 66 in sleeve 58 that receives a fastener 68 that extends through tube 34 and into concrete filling 38 .
- Base plate 56 preferably has dimensions of approximately 53 ⁇ 4 by 8 inches and a thickness perpendicular to the longitudinal axis of approximately 3 ⁇ 8 of an inch.
- Sleeve 58 has a height along the longitudinal axis of approximately four inches and a thickness perpendicular to the longitudinal axis of approximately 1 ⁇ 4 inch.
- Aperture 59 of sleeve 58 has an inside diameter of approximately four (4) inches that receives a four (4) inch diameter lally column 12 . It is understood, however, that these dimensions are variables that are situational dependent upon interfacing with a given dimension of column 12 for a specified structural application.
- adjustment mechanism 20 preferably has a range of adjustability that is adapted to a particular column 12 and load capacities.
- columns 12 can be procured in lengths that vary by three inches.
- the adjustable range of extension or adjustment mechanism 20 in this example is approximately 3 inches depending upon factors such as the thickness of base flange 22 and which embodiment is employed.
- Cap plate 18 , base flange 22 , base plate 24 and base plate 56 are preferably planar shaped steel plates that can be dimensioned to a particular application and to increase the level of uplift protection. For example, increasing the dimensions of base flange 22 and base plate 24 increases the surface area of the interface and potentially distributes the load of adjustment mechanism 20 with an external structure.
- Fasteners 48 , 62 and 68 are fasteners that are appropriate for use with the material with which they interface.
- fasteners 48 , 62 and 68 are preferably hardened screws for connecting to concrete, but the fasteners can also include attaching nuts and other connecting devices depending upon the application.
- anchor bolt 42 is a hardened bolt that preferably includes a retention aiding device that is embedded in concrete 38 .
- the fasteners, to include fasteners 26 , 32 and bolt 42 of adjustable column 10 have the load capacity to perform the desired functions defined herein.
- adjustable column 10 can be assembled and installed advantageously by a single unskilled worker as an apparatus that includes column 12 , cap plate 18 and adjustment mechanism 20 .
- Select components such as cap plate 18 , base flange 22 and/or base plate 24 , for example, can be manufactured and assembled in the field as adjustable column 10 .
- cap plate 18 is preferably operationally employed as a template and two apertures 70 are made in an external structure such as beam 2 that are aligned with key hole apertures 28 . At least two fasteners 32 are screwed into beam 2 and a gap is left between the heads of fasteners 32 and beam 2 that can receive the thickness of cap plate 18 .
- Beam 2 is made of industry standard materials such as wood, wood products, concrete or steel and due to their varying materials it is understand that there are application specific alternative processes for connecting a support structure, such as fasteners 32 , to beam 2 for the suspension of column 12 .
- Some of these alternative support structures for beam 2 can include, for example, a metal strap, drilling holes and using standard fastener mechanisms such as bolts and nuts, welding or an adapter plate, for example, that has fasteners that connect to cap plate 18 as well as other alternative mechanical connection means.
- Nut 30 is connected to anchor 42 in first end portion 14 to secure cap plate 18 to column 12 .
- Nut 30 recesses into aperture 40 defined in concrete filling 38 . This connection advantageously provides a continuous load bearing interface between plate 18 and the terminal end of first end portion 14 .
- the opposing side of cap plate 18 from nut 30 is adapted to interface with beam 2 .
- base flange 22 is connected to second end portion 16 .
- Fasteners 26 are threaded through apertures 50 and threaded into apertures 52 or positioned in notches 53 .
- the height of adjustment mechanism 20 is adjusted by turning fasteners 26 that interface with notches 53 to change the height between base flange 22 and base plate 24 .
- the height of distance between base flange 22 and base plate 24 is initially adjusted so that there is sufficient clearance between base plate 24 and a floor, such as a subfloor 4 or floor 6 , to accommodate the raising and connecting of adjustable column 10 . In this preferred embodiment this can also include leaving sufficient height clearance for a lever to be inserted under adjustable column 10 .
- the load capacity, size and number of fasteners 26 as well as the number of apertures 50 , apertures 52 and notches 53 can vary depending upon an intended application of adjustable column 10 .
- Adjustable column 10 is then raised and temporarily held in an approximately vertical position aligned with fasteners 32 in beam 2 .
- a lever is positioned under adjustment mechanism 20 and actuated to raise adjustable column 10 to pass the heads of preferably two fasteners 32 through the first portions of key hole apertures 28 of cap plate 18 .
- Adjustable column 10 is repositioned to secure the heads of fasteners 32 in the second portion of key holes 28 .
- a safety plug or adapter can be additionally inserted into the first portions of key hole 28 to ensure that adjustable column 10 does not shift during the installation process.
- Adjustable column 10 is then freely hanging from the connection of fasteners 32 with beam 2 . Additional fasteners 32 are employed through the remaining apertures 28 and/or 29 of cap plate 18 to secure adjustable column 10 to beam 2 at a desired alignment.
- a first pair of diagonally opposed fasteners 26 is threaded into apertures 50 of base flange 22 and into threaded apertures 52 of base plate 24 .
- the first pair of fasteners 26 preferably terminates in apertures 52 .
- the remaining pair of diagonally opposed fasteners 26 is threaded through apertures 50 and each fastener 26 terminates in its respective notch 53 of base plate 24 .
- the second pair of fasteners 26 is employed to move base plate 24 relative to base flange 22 and into direct contact with sub-floor 4 and place adjustable column 10 into a load bearing position between beam 2 and sub-floor 4 .
- Base plate 24 can also be adjusted to compensate for minor slope variations in sub-floor 4 .
- Attachment mechanism 20 is secured to subfloor 4 by connecting fasteners 48 through apertures in base plate 24 to secure adjustable column 10 to subfloor 4 .
- Fasteners 26 that include a concrete screw second end portion can be optionally extended through apertures 52 and into pre-drilled apertures in subfloor 4 to provide additional uplift protection.
- base flange 22 is connected to second end portion 16 .
- Adjustable column 10 is raised vertically and connected to beam 2 as described previously by a single person.
- base plate 24 is positioned on subfloor 4 and the four fasteners 26 are threaded through apertures 50 of base flange 22 and each fastener 26 is aligned with a notch 53 .
- Fasteners 26 are extended into notches 53 to adjust the height of adjustable column 10 and positioning adjustable column 10 in a load bearing position by moving base flange 22 relative to base plate 24 .
- Uplift protection is provided by band 54 that is positioned under base plate 24 and connects to base flange 22 as described previously. Additional fasteners can extend through base plate 24 and/or base plate and band 54 to connect adjustment mechanism 20 to subfloor 4 to provide uplift protection. Adjustment mechanism 20 is then overlaid with floor 6 as described above.
- base plate 24 of adjustment mechanism 20 can be positioned on and secured directly to floor 6 .
- the gap between plates 22 and 24 is filled with grout.
- Adjustment mechanism 20 can be further encased in concrete, as desired.
- fasteners 48 are employed through apertures in base plate 24 and directly into floor 6 to provide uplift protection.
- the operational employment of the second embodiment of adjustment mechanism 20 of adjustable column 10 includes the alignment of cap plate 18 and base plate 56 .
- Cap plate 18 is secured to column 12 and fasteners 32 to beam 2 .
- Sleeve 58 is slidingly connected onto column 12 .
- Adjustable column 10 is raised approximately vertical and connected to beam 2 as described previously.
- Base plate 56 is aligned with column 12 and secured onto subfloor 4 by connecting fasteners 62 into subfloor 4 through apertures 60 of base plate 56 .
- one or more individual discs from set of discs 64 are selectively inserted to fill the gap between base plate 56 and the terminal end of second end portion 16 of column 12 .
- the set of discs 64 is aligned with column 12 and sleeve 58 is slid down column 12 and connected with base plate 56 .
- the means of connection between sleeve 58 and flange 56 can be a permanent coupling such as welded joint or alternatively a removable connection such as a threaded or a bolted interface.
- flange 56 that has an outer sleeve secured with fasteners to sleeve 58 or a sleeve 58 that includes a flange aligned with flange 56 and apertures that receive two or more concrete screws, such as concrete screws 64 that connect sleeve 58 to at least flange 56 .
- fasteners 68 connect column 12 and sleeve 58 through apertures 66 .
- the apertures in column 12 that receive fasteners 68 can be one of a plurality of apertures that are predrilled in column 12 or apertures that are drilled on site during installation.
- the second embodiment of adjustment mechanism 20 can then be selectively encased in concrete to provide additional uplift protection and preclude tampering.
- adjustable column 10 includes elongate tubular column 12 , cap plate 18 and attachment mechanism 20 .
- Column 12 includes first end portion 14 and opposed second end portion 16 .
- Column 12 has a tubular wall with an outer cylindrical shape that defines a central longitudinal axis aligned with a centerline of column 12 .
- column 12 has an approximately 1 ⁇ 8 th inch thick tubular wall and an approximately three (3) inch diameter.
- Column 12 is preferably made of steel. It is understood that the structure and materials of construction of column 12 can vary depending upon factors such as the load and the dimensions of beam 2 .
- First end portion 14 connects to cap plate 18 and second end portion 16 connects to adjustment mechanism 20 .
- First end portion 14 includes a plate 72 that is approximately perpendicular to the longitudinal axis defined by column 12 .
- Plate 72 is preferably positioned approximately 3 ⁇ 8 of an inch below rim 36 .
- Plate 72 defines a threaded aperture 74 that is aligned with center longitudinal axis of column 12 .
- Attachment mechanism 20 includes base flange 22 , threaded rod 27 and base plate 24 .
- Second end portion 16 connects to base flange 22 .
- Base flange 22 defines a threaded aperture 57 that is aligned with centerline of column 12 .
- Threaded rod 27 is fixed to base plate 24 and is adjustably connected through aperture 57 to base flange 22 .
- Rod 27 is preferably an approximately 11 ⁇ 4 th (1.25) inch threaded rod.
- Rod 27 preferably includes a lower section in proximity to base plate 24 that is unthreaded and includes flattened sides that are adapted to receive a wrench or other device to facilitate turning rod 27 . It is understood that dimensions of rod 27 , such as the length and diameter can vary depending upon the intended application. As shown in FIGS.
- cap plate 18 has an approximately U-shape.
- Cap plate 18 includes an approximately flat base plate connected to two approximately parallel sidewalls 19 positioned in fixed spaced separation that define the U-shape.
- the parallel sidewalls 19 extend approximately perpendicular to base plate of plate 18 .
- the base plate includes a receptacle 30 .
- Receptacle 30 defines an aperture 33 and has a tapered countersink 35 type shape that extends approximately perpendicular to base plate 18 and in a direction opposed to that of sidewalls 19 .
- Aperture 33 is approximately aligned with the center longitudinal axis of column 12 and is preferably unthreaded.
- Countersink 35 receives a bolt 43 that is preferably an approximately 1 ⁇ 2 inch diameter threaded bolt.
- Bolt 43 has a multi-sided head that mates with the corresponding multi-sided inside surface of countersink 35 to securely connect bolt 43 and cap plate 18 .
- Threaded bolt 43 also has a flat countersink head 45 when positioned in countersink 35 such that a top of the flat head 45 of bolt 43 is approximately flush with the second side of base plate 18 .
- Sidewalls 19 define apertures 31 that receive fasteners 37 that can be nails and/or screw type connectors.
- the opposing side of cap plate 18 to include the inner opposing sides of sidewalls 19 are adapted to interface with an external structure.
- cap plate 18 is an approximately 33 ⁇ 8 inches wide, approximately 111 ⁇ 2 inches long, approximately four (4) inches in height (plate 18 and sidewalls 19 ) and approximately 1 ⁇ 8 th of an inch thick plate. It is understood, that dimensions of plate 18 can vary depending upon the intended application that includes factors such as the width of beam 2 , length of beam 2 , diameter of column 12 and load carried by beam 2 .
- cap plate 18 of adjustable column 10 can also have a planar plate shape that defines at least two key hole type apertures 28 that are selective retention mechanisms for cap plate 18 with fasteners 32 .
- cap plate 18 can selectively define one or more apertures 29 that are preferably circular shaped through holes.
- plate 18 includes a receptacle 30 .
- Receptacle 30 defines an aperture 33 and has an approximately tapered countersink 35 type shape.
- Aperture 33 is approximately aligned with the central longitudinal axis of column 12 and is preferably unthreaded.
- Countersink 35 receives a bolt 43 that preferably has an approximately inch diameter.
- Bolt 43 has a flat countersink head 45 that mates with the corresponding tapered inside surface of countersink 35 such that a top of the flat head 45 of bolt 43 is approximately flush with the second side of plate 18 .
- cap plate 18 is adapted to interface with an external structure.
- cap plate 18 is a plate approximately 31 ⁇ 8 th inches wide, approximately eight (8) inches long and approximately 1 ⁇ 4 of an inch thick.
- Key hole apertures 28 and one or more apertures 29 are the same as described previously above. It is understood that dimensions of plate 18 can vary depending upon the intended application that includes factors such as the width of beam 2 , length of beam 2 , diameter of column 12 and load carried by beam 2 .
- threaded bolt 43 is positionable into countersink 33 and through aperture 33 .
- Multi-sided bolt head 45 mates with the multi-sided receptacle 30 defined by countersink 35 .
- Cap plate 18 bolt 43 is threaded into aperture 74 relative to plate 72 .
- Bolt 43 secures cap plate 18 to plate 72 and first end portion 14 of column 12 .
- Assembled column 12 including adjustment mechanism 20 and cap plate 18 are adapted to be connected to beam 2 by positioning beam 2 between sidewalls 19 and using fasteners 37 to connect assembled column 12 and cap plate 18 to beam 2 .
- cap plate 18 is adapted to be connected to beam 2 using fasteners 37 and column 12 plate 72 aperture 74 is connected to the downwardly extended bolt 43 of cap plate 18 .
- Bolt 43 is fixed in position on plate 18 and is flush with second surface of base plate 18 that is adapted to abut beam 2 .
- the multi-sided head 45 of bolt 43 and the mating multi-sided receptacle 30 of countersink 35 prevent the rotation of bolt 43 during the threaded connecting of plate 18 and aperture 74 of plate 72 in column 12 .
- threaded bolt or rod 27 is turned relative to column 12 for the height adjustment of column 12 .
- Rod or bolt 27 is adapted to adjust the height of column between floor 4 and beam 2 . If plate 18 is initially installed on beam 2 , then baseplate 24 can be fixed in position on floor 4 using bolts 48 through apertures 51 and column 12 rotated relative to bolt 27 to increase the height of column 12 , threadingly engage aperture 74 of plate 72 with threaded bolt 43 and secure column 12 in a fixed load bearing position between floor 4 and beam 2 .
- bolt 27 and base plate 24 are rotated to elevate column 12 and plate 18 is adapted to receive beam 2 between sidewalls 19 .
- fasteners 37 are connected through apertures 31 in sidewalls 19 and fasteners 48 are connected through apertures 51 in base plate 24 and into floor 4 .
- cap plate 18 is preferably assembled onto column 12 by positioning threaded bolt 43 into countersink 35 and threading bolt 43 into aperture 74 of plate 72 on first end portion 14 of column 12 .
- the head 45 of bolt 43 in this embodiment includes a hex key receptacle that enables the turning and installation of countersunk head 45 into aperture 74 while positioned in countersink 35 .
- the height of adjustment mechanism 20 is adjusted by turning rod 27 that interfaces with aperture 57 to change the height between base flange 22 and base plate 24 .
- the height of distance between base flange 22 and base plate 24 is initially adjusted so that there is sufficient clearance between base plate 24 and a floor, such as a subfloor or floor 4 , to accommodate the raising and connecting of adjustable column 10 .
- this can also include leaving sufficient height clearance for a lever to be inserted under adjustable column 10 .
- the load capacity and size of rod 27 can vary depending upon an intended application of adjustable column 10 .
- Adjustable column 10 is then raised and temporarily held in an approximately vertical position aligned with fasteners 32 in beam 2 as described previously in reference to FIGS. 5 and 6 .
- a lever is positioned under adjustment mechanism 20 and actuated to raise adjustable column 10 to pass the heads of preferably two fasteners 32 through the first portions of key hole apertures 28 of cap plate 18 .
- Adjustable column 10 is repositioned to secure the heads of fasteners 32 in the second portion of key holes 28 .
- a safety plug or adapter can be additionally inserted into the first portions of key hole 28 to ensure that adjustable column 10 does not shift during the installation process.
- Adjustable column 10 is then freely hanging from the connection of fasteners 32 with beam 2 . Additional fasteners 32 are employed through the remaining apertures 28 and/or 29 of cap plate 18 to secure adjustable column 10 to beam 2 at a desired alignment.
- rod 27 and base plate 24 are turned relative to column 12 to adjust the height of column 12 .
- Adjustment mechanism 20 utilizing rod 27 , is adapted to position adjustable column 10 in a load bearing position between floor 4 and beam 2 .
- Attachment mechanism 20 is adapted to secure column 12 to floor 4 by connecting fasteners 48 through apertures 51 in base plate 24 .
- adjustable column 10 Once adjustable column 10 is fixed in a load bearing position between beam 2 and floor 4 , it is understood that an additional concrete floor can be poured to encase adjustment mechanism 20 as shown and described previously in reference to FIG. 6 .
- the encasing of adjustment mechanism 20 includes the area between plates 22 and 24 and preferably overlays fasteners 26 below the floor level. The encasing of adjustment mechanism 20 advantageously provides additional uplift protection, sets adjustable column 10 at a permanent height and precludes tampering.
- base plate 24 of adjustment mechanism 20 can be positioned on and secured directly to floor 4 .
- the gap between plates 22 and 24 can be filled with grout.
- Adjustment mechanism 20 can be further encased in concrete, as desired.
- fasteners 48 are employed through apertures 51 in base plate 24 and directly into floor 4 to provide uplift protection.
- adjustment mechanism 20 can include alternative means for adjusting the height of column 12 such as a single threaded load bearing connector that couples with threaded connectors on base flange 22 and base plate 24 to adjust the height of adjustable column 10 .
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Abstract
Description
- This application is a continuation in part of and claims priority to U.S. patent application Ser. No. 12/473,301 filed May 28, 2009 that is a continuation in part of and claims priority to U.S. patent application Ser. No. 12/156,155 filed May 29, 2008, the disclosures of which are incorporated by reference herein and made part of this application.
- 1. Field of the Invention
- The present disclosure relates to columns used to support structures and in particular to columns that can be adjusted in height.
- 2. Description of the Related Art
- Permanent structural columns, such as columns, are often pre-fabricated and cut to size at the construction site to fit the actual height needed for a particular application. The cutting, assembling and installing of the column is a time consuming process that can undesirably require specialized tools and skilled labor.
- Adjustable columns that have been developed to address this problem are typically telescopic in nature with a first tubular post sliding within a second tubular post. A cross-bar is inserted through holes aligned in the first and second posts to fix the height of the column. A cap plate is connected to a threaded bar and the bar is then rotated to elevate the cap plate for the final height adjustment. These adjustable columns, however, can be load limited compared to traditional columns and are vulnerable to tampering. Alternative adjustable columns insert one or more shim plates at the base to increase the height of the column while the column is manually held upright for connection with pre-existing apertures in a beam. Both of these configurations require multiple personnel to retain the column in position while the height of the column is adjusted and the alignment secured.
- Columns have traditionally been assumed to support a load that also provides an adequate counterforce against uplifting forces. This tradition is incorporated into many residential and commercial building codes by the omission of a requirement that columns connect to the floor and supported beam. As a result, in many installations columns are simply placed in a load bearing position without being positively secured to the floor and beam. A secure connection between the column, floor and beam that can provide the uplift protection is being increasing recognized as an important structural element under severe weather or environmental conditions.
- An adjustable column is needed that can be readily installed by a single worker with the use of readily available tools that can also advantageously provide uplift protection.
- An adjustable column is described that comprises a tubular column that has a first end portion and an opposed second end portion. The first end portion includes a plate positioned inside of and connected to the tubular walls of the column. The plate or column plate is recessed below a rim of a first end portion of the column. The column plate defines an aperture.
- A cap plate has a first side and an opposed second side. The first side of the cap plate is fixed to the column and the opposed second side of the cap plate is adapted to interface with a beam. The cap plate defines a receptacle that is a countersink that has a tapered structure that defines a first aperture. A first fastener with a countersunk head is received by and mates with the countersink in the cap plate. The first fastener installed in the countersink includes a top of the head of the first fastener approximately flush with the second side of the cap plate. The cap plate adapted to secure the column to the beam. The cap plate defines second apertures and includes second fasteners that are positionable in the second apertures that are adapted to secure the cap plate to the beam.
- An adjustment mechanism connects to the second end portion of the column. The adjustment mechanism includes a base plate, a base flange and a threaded rod. The base plate is fixedly connected to the threaded rod, The base flange defines a threaded aperture that connects with the threaded rod to adjust the height of the column. The base plate is adapted to be positioned on a floor. The base flange is connected to the second end portion of the column. The cap plate is connected to the beam and the column is suspended from the cap plate. The second end portion of the column is adapted to provide an adjustable load bearing interface between the floor and a terminal end of the second end portion of the column. The adjustment mechanism adjusts to extend between the suspended column and the floor. The extended adjustment mechanism is adapted to place the column in a load bearing position between the beam and floor.
- The cap plate can have a structure that includes a base that is connected to two approximately parallel sidewalls. The cap plate has an approximately U-shape that is adapted to receive the beam between the sidewalls. The countersink defined in the cap plate includes multi-sided walls. The head of the fastener has mating multi-sided walls that engage and fix the head of the first fastener from rotational movement in the countersink receptacle. The second apertures are defined in the sidewalls of the cap plate.
- The countersink structure in the cap plate in combination with, the flat headed countersink first fasteners provide a flush alignment with the second side of the cap plate and a flat mating surface that is adapted to fit flush against a bottom of the beam. This combination is adapted to provide a compact secure fit between the cap plate and the beam.
- The single first fastener provides a simplified direct attachment between the cap plate and the first end portion of the column. Similarly, the single threaded rod of the adjustment mechanism advantageously provides a simplified and direct adjustable attachment between the base plate and the base flange.
- Preferred embodiments of the invention are described below with reference to the drawings, wherein like numerals are used to refer to the same or similar elements.
-
FIG. 1 is a front view of an adjustable column that includes a column, a cap plate and an adjustment mechanism, the adjustable column constructed in accordance with the present disclosure; -
FIG. 2 is a top and side perspective view of a first end portion of the column and a perspective view of a first side of the cap plate of the adjustable column ofFIG. 1 ; -
FIG. 3 is a bottom and side perspective view of a first embodiment of the adjustment mechanism of the adjustable column ofFIG. 1 ; -
FIG. 4 is a side and top perspective view of a second embodiment of the adjustment mechanism of the adjustable column ofFIG. 1 ; -
FIG. 5 is a front and upwardly directed perspective view of the connecting of the adjustable column ofFIG. 1 to an external beam; -
FIG. 6 is a close-up front and downwardly directed perspective view of the adjusting of the height of the adjustable column ofFIG. 1 into a load bearing position; -
FIG. 7 is a front and downwardly directed perspective view of the adjusting of the height of the adjustable column and adjustment mechanism ofFIG. 4 into a load bearing position; and -
FIG. 8 is a front and downwardly directed perspective view of the adjustable column and adjustment mechanism ofFIG. 7 in a load bearing position. -
FIG. 9 is a front view of an another embodiment of an adjustable column; -
FIG. 10A is a top perspective view of a first end portion of the column and a first cap plate of the adjustable column ofFIG. 9 ; -
FIG. 10B is a top perspective view of the first end portion of the column and a second cap plate of the adjustable column ofFIG. 9 ; -
FIG. 11 is side perspective view of the first end portion of the column and first cap plate of the adjustable column aligned with and adapted to connect to a beam; -
FIG. 12 is side perspective view of the first end portion of the column and second cap plate of the adjustable column aligned with and adapted to connect to the beam; -
FIG. 13 is a side and top perspective view of the adjustable column that includes the first cap plate in position and adapted to support the beam; and -
FIG. 14 is a side and top perspective view of the adjustable column that includes the second cap plate in position and adapted to support the beam. - Referring initially to
FIG. 1 , an apparatus for anadjustable column 10 includes anelongate column 12 that has afirst end portion 14 and an opposedsecond end portion 16, acap plate 18 and anattachment mechanism 20.First end portion 14 connects to capplate 18 andsecond end portion 16 connects toadjustment mechanism 20.Column 12 defines a central longitudinal axis and preferably has a cylindrical shape. In this preferred embodiment,column 12 is an exemplary lally type column. - As shown in
FIG. 2 ,cap plate 18 is a planar shaped plate that defines at least two keyhole type apertures 28 that are selective retention mechanisms forcap plate 18 withfasteners 32. In addition,cap plate 18 can selectively define one ormore apertures 29 that are cylindrical shaped through holes. A receptacle ornut 30 is connected to a first side ofcap plate 18. In this preferred embodiment,nut 30 interfaces with ananchor bolt 42 that is preferably a Y2 inch diameter threaded bolt. The opposing side ofcap plate 18 is adapted to interface with an external structure. In this preferred embodiment,cap plate 18 is an approximately 5% inches wide, approximately eight (8) inches long and approximately ¾ of an inch thick plate. -
Key hole apertures 28 have a first portion and a second portion. The first portion of eachaperture 28 has a first cross-sectional area parallel to the plane defined byplate 18 that tapers or reduces to a second portion with a second cross-sectional area parallel to the plane ofplate 18 in the second portion. The first portion ofaperture 28 has a larger cross-sectional area than the cross-sectional area of the second portion.Bolts 32 have heads that will fit through the first portion, but cannot fit through the reduced area of the second portion ofkey hole apertures 28.Key hole apertures 28 are preferably aligned in a single direction, but it is understood thatapertures 28 can have any directional alignment that facilitates the securing and retaining ofcap plate 18 to the external structure. - Alternative equivalents of the selective retention mechanism of
cap plate 18 or means for selectively retainingplate 18 withfasteners 32 includes configurations in which select apertures incap plate 18 allow the passage of a head offastener 32 and a slotted washer, pin and/or slotted plate is positioned betweencap plate 18 and the head offastener 32 to retaincap plate 18 with the head offastener 32. -
Column 12 is preferably a Lally type column that has a steelouter tube 34 that defines arim 36 that is a portion of the terminal end offirst end portion 14 ofcolumn 12.Column 12 includes a concrete filling 38 with a terminal end that is approximately flush withrim 36.First end portion 14 includes a notch oraperture 40 in an outwardly directed face of the terminal end of concrete 38 that extends a predetermined distance along and is aligned with the central longitudinal axis ofcolumn 12. Ananchor bolt 42 is positioned in concrete filling 38 that extends intonotch 40 and in the opposing direction along the central longitudinal axis towardssecond end portion 16.Column 12 has an outside diameter in this exemplary preferred embodiment that is approximately four (4) inches in diameter.Notch 40 has a depth along the central longitudinal axis and cross-sectional area perpendicular to the longitudinal axis that receivesnut 30 ofplate 18.Bolt 42 has a firstterminal end 44 that is approximately aligned withrim 36 oftube 34.Anchor bolt 42 andnut 30 secure the first side ofcap plate 18 in direct contact with the terminal end offirst end portion 14.Anchor bolt 42 provides the structural integrity necessary forbolt 42 to provide uplift protection and at least support the weight ofadjustable column 10. - Referring now to
FIGS. 1 and 3 , in this preferred embodiment ofadjustment mechanism 20 includes abase flange 22, abase plate 24 and fourload bearing fasteners 26.Base flange 22 connects tosecond end portion 16 ofcolumn 12.Base flange 22 preferably defines twoapertures 46 that receiveconcrete screws 48 thatsecure base flange 22 to concrete filling 38 of the terminal end ofsecond end portion 16. It is understood that alternative methods of connectingflange 22 andcolumn 12 include those commonly used in the industry such as welding, adhesives and/or an anchor bolt, for example. -
Base flange 22 has fourapertures 50 that are in close proximity to the outer surface ofcolumn 12.Apertures 50 have an equidistant arrangement that form a square aroundcolumn 12. Eachfastener 26 has a head and an opposed distal or second end. Eachfastener 26 is preferably a hardened set screw suitable for load bearing applications ofadjustable column 10 and to provide for the relative movement betweenbase flange 22 andbase plate 24.Fasteners 26 preferably have a diameter of ½ inch and a length of approximately 3½ inches. - Continuing with this preferred embodiment,
base plate 24 includes two diagonally opposedapertures 52 and two diagonally opposednotches 53 that are aligned withapertures 50.Fasteners 26,apertures 50,apertures 52 andnotches 53 are aligned with the central longitudinal axis.Apertures 52 can be through holes or terminate inplate 24. Twofasteners 26 are connected to both threadedapertures 50 inbase flange 22 and threadedapertures 52 inbase plate 24 to securely couplebase flange 22 tobase plate 24. The remaining twofasteners 26 are connected to threadedapertures 50 and the distal end of eachfastener 26 is positioned in one ofnotches 53.Notches 53 are non-threaded depressions inplate 24 that are sized and dimensioned to receive the second end offasteners 26. - Uplift protection for
adjustable column 10 is provided by securingattachment mechanism 20 to an external structure. Fasteners such asconcrete screws 48 connect to the external structure through additional apertures inbase plate 24.Fasteners 26 can also extend throughapertures 52 inbase plate 24 and have terminal ends suitable to connect with an external structure. - In a variation of the first embodiment of
adjustment mechanism 20,base plate 24 includes fournotches 53 that receive the second ends offasteners 26. This variation provides an increased ability to compensate for angular variations in the external surface upon whichbase plate 24 is positioned.Base plate 24 is connected tobase flange 22 by aband 54. In this variation,band 54 preferably extends underbase plate 24 and is secured tobase flange 22 usingscrews 55.Band 54 is preferably metal, butband 54 can be fabricated of alternative materials such as composites, polymers and fiberglass, for example, that connectbase flange 22 andbase plate 24 together in a secure load bearing position. - Continuing with this variation of the first embodiment, uplift protection is provided by the embedding of
adjustment mechanism 20 in a layer of poured concrete such as concrete floor 6 (seeFIG. 6 ). Uplift protection can be also provided by using one or more concrete screws, such asfasteners 48 through additional holes inplate 24 and/orband 54 and into an external surface such as sub-floor 4, for example (seeFIG. 6 ). - As shown in
FIG. 4 , a second preferred embodiment ofadjustment mechanism 20 includes abase plate 56 and asleeve 58.Plate 56 has two ormore apertures 60 that receivefasteners 62, such as concrete screws that connectplate 56 to an external surface for uplift protection.Sleeve 58 connects to baseplate 56 and defines anaperture 59 that receivescolumn 12. - The second embodiment of
adjustment mechanism 20 also includes a set ofdiscs 64 that has a plurality of individual discs that range in thickness between approximately 1/16 of an inch and approximately one (1) inch. Set ofdiscs 64 preferably has planar parallel opposing faces and an outside diameter that is approximately equivalent to the outside diameter ofcolumn 12. At least one of set ofdiscs 64 is selectively positioned onbase plate 24 to provide a continuous load bearing interface between the terminal end ofsecond end portion 16 ofcolumn 12 andbase plate 56. A recess is preferably defined inbase 56 that receives and aligns the initial disc of set ofdiscs 64 with the connection forsleeve 58. -
Sleeve 58 connects tosecond end portion 16 ofcolumn 12 andflange 56 to aligncolumn 12 with set ofdiscs 64 and create an integrated assembly ofattachment mechanism 20 andcolumn 12.Sleeve 58 encloses set ofdiscs 64 betweenbase plate 56 and the terminal end ofsecond end portion 16 ofcolumn 12.Sleeve 58 can connect tobase plate 56 andcolumn 12 using any means of mechanical connection that provides adequate uplift protection. In this preferred embodiment,sleeve 58 is secured tocolumn 12 by at least oneaperture 66 insleeve 58 that receives afastener 68 that extends throughtube 34 and into concrete filling 38. -
Base plate 56 preferably has dimensions of approximately 5¾ by 8 inches and a thickness perpendicular to the longitudinal axis of approximately ⅜ of an inch.Sleeve 58 has a height along the longitudinal axis of approximately four inches and a thickness perpendicular to the longitudinal axis of approximately ¼ inch.Aperture 59 ofsleeve 58 has an inside diameter of approximately four (4) inches that receives a four (4) inchdiameter lally column 12. It is understood, however, that these dimensions are variables that are situational dependent upon interfacing with a given dimension ofcolumn 12 for a specified structural application. - Referring to
FIGS. 3 and 4 ,adjustment mechanism 20 preferably has a range of adjustability that is adapted to aparticular column 12 and load capacities. For example, in one preferred embodiment,columns 12 can be procured in lengths that vary by three inches. The adjustable range of extension oradjustment mechanism 20 in this example is approximately 3 inches depending upon factors such as the thickness ofbase flange 22 and which embodiment is employed. -
Cap plate 18,base flange 22,base plate 24 andbase plate 56 are preferably planar shaped steel plates that can be dimensioned to a particular application and to increase the level of uplift protection. For example, increasing the dimensions ofbase flange 22 andbase plate 24 increases the surface area of the interface and potentially distributes the load ofadjustment mechanism 20 with an external structure. -
Fasteners fasteners anchor bolt 42 is a hardened bolt that preferably includes a retention aiding device that is embedded inconcrete 38. The fasteners, to includefasteners bolt 42 ofadjustable column 10, have the load capacity to perform the desired functions defined herein. - Referring now to
FIG. 1 adjustable column 10 can be assembled and installed advantageously by a single unskilled worker as an apparatus that includescolumn 12,cap plate 18 andadjustment mechanism 20. Select components such ascap plate 18,base flange 22 and/orbase plate 24, for example, can be manufactured and assembled in the field asadjustable column 10. - As shown in
FIGS. 2 and 5 ,cap plate 18 is preferably operationally employed as a template and twoapertures 70 are made in an external structure such asbeam 2 that are aligned withkey hole apertures 28. At least twofasteners 32 are screwed intobeam 2 and a gap is left between the heads offasteners 32 andbeam 2 that can receive the thickness ofcap plate 18.Beam 2 is made of industry standard materials such as wood, wood products, concrete or steel and due to their varying materials it is understand that there are application specific alternative processes for connecting a support structure, such asfasteners 32, tobeam 2 for the suspension ofcolumn 12. Some of these alternative support structures forbeam 2 can include, for example, a metal strap, drilling holes and using standard fastener mechanisms such as bolts and nuts, welding or an adapter plate, for example, that has fasteners that connect to capplate 18 as well as other alternative mechanical connection means. -
Nut 30 is connected to anchor 42 infirst end portion 14 to securecap plate 18 tocolumn 12.Nut 30 recesses intoaperture 40 defined in concrete filling 38. This connection advantageously provides a continuous load bearing interface betweenplate 18 and the terminal end offirst end portion 14. The opposing side ofcap plate 18 fromnut 30 is adapted to interface withbeam 2. - Referring now to
FIGS. 3 , 5 and 6, in the first embodiment ofadjustment mechanism 20,base flange 22 is connected tosecond end portion 16.Fasteners 26 are threaded throughapertures 50 and threaded intoapertures 52 or positioned innotches 53. The height ofadjustment mechanism 20 is adjusted by turningfasteners 26 that interface withnotches 53 to change the height betweenbase flange 22 andbase plate 24. The height of distance betweenbase flange 22 andbase plate 24 is initially adjusted so that there is sufficient clearance betweenbase plate 24 and a floor, such as a subfloor 4 orfloor 6, to accommodate the raising and connecting ofadjustable column 10. In this preferred embodiment this can also include leaving sufficient height clearance for a lever to be inserted underadjustable column 10. It is understood that the load capacity, size and number offasteners 26 as well as the number ofapertures 50,apertures 52 andnotches 53 can vary depending upon an intended application ofadjustable column 10. -
Adjustable column 10 is then raised and temporarily held in an approximately vertical position aligned withfasteners 32 inbeam 2. A lever is positioned underadjustment mechanism 20 and actuated to raiseadjustable column 10 to pass the heads of preferably twofasteners 32 through the first portions ofkey hole apertures 28 ofcap plate 18.Adjustable column 10 is repositioned to secure the heads offasteners 32 in the second portion of key holes 28. As required, a safety plug or adapter can be additionally inserted into the first portions ofkey hole 28 to ensure thatadjustable column 10 does not shift during the installation process.Adjustable column 10 is then freely hanging from the connection offasteners 32 withbeam 2.Additional fasteners 32 are employed through the remainingapertures 28 and/or 29 ofcap plate 18 to secureadjustable column 10 tobeam 2 at a desired alignment. - In this preferred embodiment utilizing four
fasteners 26, a first pair of diagonally opposedfasteners 26 is threaded intoapertures 50 ofbase flange 22 and into threadedapertures 52 ofbase plate 24. The first pair offasteners 26 preferably terminates inapertures 52. The remaining pair of diagonally opposedfasteners 26 is threaded throughapertures 50 and eachfastener 26 terminates in itsrespective notch 53 ofbase plate 24. The second pair offasteners 26 is employed to movebase plate 24 relative tobase flange 22 and into direct contact with sub-floor 4 and placeadjustable column 10 into a load bearing position betweenbeam 2 and sub-floor 4.Base plate 24 can also be adjusted to compensate for minor slope variations in sub-floor 4. -
Attachment mechanism 20 is secured to subfloor 4 by connectingfasteners 48 through apertures inbase plate 24 to secureadjustable column 10 to subfloor 4.Fasteners 26 that include a concrete screw second end portion can be optionally extended throughapertures 52 and into pre-drilled apertures in subfloor 4 to provide additional uplift protection. Onceadjustable column 10 is fixed in a load bearing position betweenbeam 2 and subfloor 4,concrete floor 6 is poured to encaseadjustment mechanism 20. The encasing ofadjustment mechanism 20 includes the area betweenplates fasteners 26 below the floor level. The encasing ofadjustment mechanism 20 advantageously provides additional uplift protection, setsadjustable column 10 at a permanent height and precludes tampering. - In an alternative embodiment of
attachment mechanism 20,base flange 22 is connected tosecond end portion 16.Adjustable column 10 is raised vertically and connected tobeam 2 as described previously by a single person. In this preferred embodiment,base plate 24 is positioned on subfloor 4 and the fourfasteners 26 are threaded throughapertures 50 ofbase flange 22 and eachfastener 26 is aligned with anotch 53.Fasteners 26 are extended intonotches 53 to adjust the height ofadjustable column 10 and positioningadjustable column 10 in a load bearing position by movingbase flange 22 relative tobase plate 24. Uplift protection is provided byband 54 that is positioned underbase plate 24 and connects to baseflange 22 as described previously. Additional fasteners can extend throughbase plate 24 and/or base plate andband 54 to connectadjustment mechanism 20 to subfloor 4 to provide uplift protection.Adjustment mechanism 20 is then overlaid withfloor 6 as described above. - Alternatively,
base plate 24 ofadjustment mechanism 20 can be positioned on and secured directly tofloor 6. In this application, the gap betweenplates Adjustment mechanism 20 can be further encased in concrete, as desired. As noted above,fasteners 48 are employed through apertures inbase plate 24 and directly intofloor 6 to provide uplift protection. - As shown in
FIGS. 4 , 5 and 7, the operational employment of the second embodiment ofadjustment mechanism 20 ofadjustable column 10 includes the alignment ofcap plate 18 andbase plate 56.Cap plate 18 is secured tocolumn 12 andfasteners 32 tobeam 2.Sleeve 58 is slidingly connected ontocolumn 12.Adjustable column 10 is raised approximately vertical and connected tobeam 2 as described previously.Base plate 56 is aligned withcolumn 12 and secured onto subfloor 4 by connectingfasteners 62 into subfloor 4 throughapertures 60 ofbase plate 56. - Referring now to
FIGS. 7 and 8 , one or more individual discs from set ofdiscs 64 are selectively inserted to fill the gap betweenbase plate 56 and the terminal end ofsecond end portion 16 ofcolumn 12. The set ofdiscs 64 is aligned withcolumn 12 andsleeve 58 is slid downcolumn 12 and connected withbase plate 56. The means of connection betweensleeve 58 andflange 56 can be a permanent coupling such as welded joint or alternatively a removable connection such as a threaded or a bolted interface. Specific examples of equivalents include aflange 56 that has an outer sleeve secured with fasteners tosleeve 58 or asleeve 58 that includes a flange aligned withflange 56 and apertures that receive two or more concrete screws, such asconcrete screws 64 that connectsleeve 58 to atleast flange 56. - In the preferred embodiment,
fasteners 68connect column 12 andsleeve 58 throughapertures 66. The apertures incolumn 12 that receivefasteners 68 can be one of a plurality of apertures that are predrilled incolumn 12 or apertures that are drilled on site during installation. The second embodiment ofadjustment mechanism 20 can then be selectively encased in concrete to provide additional uplift protection and preclude tampering. - Referring to
FIG. 9 and another embodiment ofadjustable column 10,adjustable column 10 includes elongatetubular column 12,cap plate 18 andattachment mechanism 20.Column 12 includesfirst end portion 14 and opposedsecond end portion 16.Column 12 has a tubular wall with an outer cylindrical shape that defines a central longitudinal axis aligned with a centerline ofcolumn 12. In this preferred embodiment,column 12 has an approximately ⅛th inch thick tubular wall and an approximately three (3) inch diameter.Column 12 is preferably made of steel. It is understood that the structure and materials of construction ofcolumn 12 can vary depending upon factors such as the load and the dimensions ofbeam 2. -
First end portion 14 connects to capplate 18 andsecond end portion 16 connects toadjustment mechanism 20.First end portion 14 includes aplate 72 that is approximately perpendicular to the longitudinal axis defined bycolumn 12.Plate 72 is preferably positioned approximately ⅜ of an inch belowrim 36.Plate 72 defines a threadedaperture 74 that is aligned with center longitudinal axis ofcolumn 12. -
Attachment mechanism 20 includesbase flange 22, threadedrod 27 andbase plate 24.Second end portion 16 connects to baseflange 22.Base flange 22 defines a threadedaperture 57 that is aligned with centerline ofcolumn 12. Threadedrod 27 is fixed tobase plate 24 and is adjustably connected throughaperture 57 tobase flange 22.Rod 27 is preferably an approximately 1¼th (1.25) inch threaded rod.Rod 27 preferably includes a lower section in proximity tobase plate 24 that is unthreaded and includes flattened sides that are adapted to receive a wrench or other device to facilitate turningrod 27. It is understood that dimensions ofrod 27, such as the length and diameter can vary depending upon the intended application. As shown inFIGS. 9 and 10A ,cap plate 18 has an approximately U-shape.Cap plate 18 includes an approximately flat base plate connected to two approximatelyparallel sidewalls 19 positioned in fixed spaced separation that define the U-shape. Theparallel sidewalls 19 extend approximately perpendicular to base plate ofplate 18. The base plate includes areceptacle 30.Receptacle 30 defines anaperture 33 and has a taperedcountersink 35 type shape that extends approximately perpendicular tobase plate 18 and in a direction opposed to that ofsidewalls 19.Aperture 33 is approximately aligned with the center longitudinal axis ofcolumn 12 and is preferably unthreaded.Countersink 35 receives abolt 43 that is preferably an approximately ½ inch diameter threaded bolt.Bolt 43 has a multi-sided head that mates with the corresponding multi-sided inside surface ofcountersink 35 to securely connectbolt 43 andcap plate 18. Threadedbolt 43 also has aflat countersink head 45 when positioned incountersink 35 such that a top of theflat head 45 ofbolt 43 is approximately flush with the second side ofbase plate 18. -
Sidewalls 19 defineapertures 31 that receivefasteners 37 that can be nails and/or screw type connectors. The opposing side ofcap plate 18, to include the inner opposing sides ofsidewalls 19 are adapted to interface with an external structure. In this one preferred embodiment,cap plate 18 is an approximately 3⅜ inches wide, approximately 11½ inches long, approximately four (4) inches in height (plate 18 and sidewalls 19) and approximately ⅛th of an inch thick plate. It is understood, that dimensions ofplate 18 can vary depending upon the intended application that includes factors such as the width ofbeam 2, length ofbeam 2, diameter ofcolumn 12 and load carried bybeam 2. - Referring now to
FIGS. 9 and 10B ,cap plate 18 ofadjustable column 10 can also have a planar plate shape that defines at least two keyhole type apertures 28 that are selective retention mechanisms forcap plate 18 withfasteners 32. In addition,cap plate 18 can selectively define one ormore apertures 29 that are preferably circular shaped through holes. - In this one preferred embodiment,
plate 18 includes areceptacle 30.Receptacle 30 defines anaperture 33 and has an approximately taperedcountersink 35 type shape.Aperture 33 is approximately aligned with the central longitudinal axis ofcolumn 12 and is preferably unthreaded.Countersink 35 receives abolt 43 that preferably has an approximately inch diameter.Bolt 43 has aflat countersink head 45 that mates with the corresponding tapered inside surface ofcountersink 35 such that a top of theflat head 45 ofbolt 43 is approximately flush with the second side ofplate 18. - The second side of
cap plate 18 is adapted to interface with an external structure. In this preferred embodiment,cap plate 18 is a plate approximately 3⅛th inches wide, approximately eight (8) inches long and approximately ¼ of an inch thick.Key hole apertures 28 and one ormore apertures 29 are the same as described previously above. It is understood that dimensions ofplate 18 can vary depending upon the intended application that includes factors such as the width ofbeam 2, length ofbeam 2, diameter ofcolumn 12 and load carried bybeam 2. - As shown in
FIGS. 11 and 13 , threadedbolt 43 is positionable intocountersink 33 and throughaperture 33.Multi-sided bolt head 45 mates with themulti-sided receptacle 30 defined bycountersink 35.Cap plate 18bolt 43 is threaded intoaperture 74 relative to plate 72.Bolt 43 securescap plate 18 to plate 72 andfirst end portion 14 ofcolumn 12. -
Assembled column 12 includingadjustment mechanism 20 andcap plate 18 are adapted to be connected tobeam 2 bypositioning beam 2 betweensidewalls 19 and usingfasteners 37 to connect assembledcolumn 12 andcap plate 18 tobeam 2. Alternatively,cap plate 18 is adapted to be connected tobeam 2 usingfasteners 37 andcolumn 12plate 72aperture 74 is connected to the downwardly extendedbolt 43 ofcap plate 18.Bolt 43 is fixed in position onplate 18 and is flush with second surface ofbase plate 18 that is adapted toabut beam 2. Themulti-sided head 45 ofbolt 43 and the matingmulti-sided receptacle 30 ofcountersink 35 prevent the rotation ofbolt 43 during the threaded connecting ofplate 18 andaperture 74 ofplate 72 incolumn 12. - In both of the above methods of installation of
adjustable column 10 tobeam 2, threaded bolt orrod 27 is turned relative tocolumn 12 for the height adjustment ofcolumn 12. Rod or bolt 27 is adapted to adjust the height of column between floor 4 andbeam 2. Ifplate 18 is initially installed onbeam 2, then baseplate 24 can be fixed in position on floor 4 usingbolts 48 throughapertures 51 andcolumn 12 rotated relative to bolt 27 to increase the height ofcolumn 12, threadingly engageaperture 74 ofplate 72 with threadedbolt 43 andsecure column 12 in a fixed load bearing position between floor 4 andbeam 2. - If
plate 18 is initially installed ontofirst end portion 14 ofcolumn 12,bolt 27 andbase plate 24 are rotated to elevatecolumn 12 andplate 18 is adapted to receivebeam 2 betweensidewalls 19. Once threadedrod 27 has been rotated sufficiently to secureadjustable column 10 in a load bearing position between floor 4 andbeam 2,fasteners 37 are connected throughapertures 31 insidewalls 19 andfasteners 48 are connected throughapertures 51 inbase plate 24 and into floor 4. - Referring now to
FIGS. 12 and 14 ,cap plate 18 is preferably assembled ontocolumn 12 by positioning threadedbolt 43 intocountersink 35 and threadingbolt 43 intoaperture 74 ofplate 72 onfirst end portion 14 ofcolumn 12. Thehead 45 ofbolt 43 in this embodiment includes a hex key receptacle that enables the turning and installation of countersunkhead 45 intoaperture 74 while positioned incountersink 35. - As described previously, the height of
adjustment mechanism 20 is adjusted by turningrod 27 that interfaces withaperture 57 to change the height betweenbase flange 22 andbase plate 24. The height of distance betweenbase flange 22 andbase plate 24 is initially adjusted so that there is sufficient clearance betweenbase plate 24 and a floor, such as a subfloor or floor 4, to accommodate the raising and connecting ofadjustable column 10. In this preferred embodiment this can also include leaving sufficient height clearance for a lever to be inserted underadjustable column 10. It is understood that the load capacity and size ofrod 27 can vary depending upon an intended application ofadjustable column 10. -
Adjustable column 10 is then raised and temporarily held in an approximately vertical position aligned withfasteners 32 inbeam 2 as described previously in reference toFIGS. 5 and 6 . A lever is positioned underadjustment mechanism 20 and actuated to raiseadjustable column 10 to pass the heads of preferably twofasteners 32 through the first portions ofkey hole apertures 28 ofcap plate 18.Adjustable column 10 is repositioned to secure the heads offasteners 32 in the second portion of key holes 28. As required, a safety plug or adapter can be additionally inserted into the first portions ofkey hole 28 to ensure thatadjustable column 10 does not shift during the installation process.Adjustable column 10 is then freely hanging from the connection offasteners 32 withbeam 2.Additional fasteners 32 are employed through the remainingapertures 28 and/or 29 ofcap plate 18 to secureadjustable column 10 tobeam 2 at a desired alignment. - In this preferred embodiment,
rod 27 andbase plate 24 are turned relative tocolumn 12 to adjust the height ofcolumn 12.Adjustment mechanism 20, utilizingrod 27, is adapted to positionadjustable column 10 in a load bearing position between floor 4 andbeam 2. -
Attachment mechanism 20 is adapted to securecolumn 12 to floor 4 by connectingfasteners 48 throughapertures 51 inbase plate 24. Onceadjustable column 10 is fixed in a load bearing position betweenbeam 2 and floor 4, it is understood that an additional concrete floor can be poured to encaseadjustment mechanism 20 as shown and described previously in reference toFIG. 6 . The encasing ofadjustment mechanism 20 includes the area betweenplates fasteners 26 below the floor level. The encasing ofadjustment mechanism 20 advantageously provides additional uplift protection, setsadjustable column 10 at a permanent height and precludes tampering. - Alternatively,
base plate 24 ofadjustment mechanism 20 can be positioned on and secured directly to floor 4. In this application, the gap betweenplates Adjustment mechanism 20 can be further encased in concrete, as desired. As noted above,fasteners 48 are employed throughapertures 51 inbase plate 24 and directly into floor 4 to provide uplift protection. - In the preceding specification, the present disclosure has been described with reference to specific exemplary embodiments thereof. It will be evident, however, that various modifications, combinations and changes may be made thereto without departing from the broader spirit and scope of the invention as set forth in the claims that follow. For
example adjustment mechanism 20 can include alternative means for adjusting the height ofcolumn 12 such as a single threaded load bearing connector that couples with threaded connectors onbase flange 22 andbase plate 24 to adjust the height ofadjustable column 10.
Claims (13)
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