APPARATUSES AND SYSTEMS FOR BRACING VERTICAL STRUCTURES
20220243493 · 2022-08-04
Inventors
- Keith Fadel (Amherst, NY, US)
- Jeffrey R. Giffen (Peachtree City, GA, US)
- Lawrence J. Geitner (Hamburg, NY, US)
- Stephanie Singer (Peachtree City, GA, US)
- Mark E. Messenger (Newnan, GA, US)
Cpc classification
International classification
Abstract
A pole reinforcement truss is disclosed. The truss can be configured to attach to a pole in a longitudinal direction of the pole. The truss can include an elongate body having a pair of opposite ends connected by a pair of longitudinal edges, a first side portion including one of the longitudinal edges, a second side portion including the other of the longitudinal edges, and a center portion connecting the first side portion and the second side portion. The first side portion can include a first substantially straight section and a second substantially straight section separated by a first bend having a first angle that is greater than 45 degrees, and the second side portion can include a third substantially straight section and a fourth substantially straight section separated by a second bend having a second angle that is greater than 45 degrees.
Claims
1. A truss for reinforcing a pole, the truss comprising: an elongate body having a pair of opposite ends connected by a pair of longitudinal edges, a first side portion including one of the longitudinal edges, a second side portion including the other of the longitudinal edges, and a center portion connecting the first side portion and the second side portion, wherein: the first side portion includes a first substantially straight section and a second substantially straight section separated by a first bend having a first angle that is greater than 45 degrees, and the second side portion includes a third substantially straight section and a fourth substantially straight section separated by a second bend having a second angle that is greater than 45 degrees.
2. The truss of claim 1, wherein the first angle and the second angle are both in a range between approximately 60 degrees and approximately 80 degrees.
3. The truss of claim 1, wherein the truss is configured to contact an exterior of the pole via only the longitudinal edges.
4. The truss of claim 1, wherein the elongate body forms a hollow interior portion configured to face the pole when the truss is installed.
5. The truss of claim 1, wherein a length of the first substantially straight section is approximately equal to a length of the fourth substantially straight section.
6. The truss of claim 1, wherein a length of the second substantially straight section is approximately equal to a length of the third substantially straight section.
7. The truss of claim 1, wherein: the center portion comprises: a fifth substantially straight section and a sixth substantially straight section; and a third bend separating the fifth substantially straight section and the sixth substantially straight section, the third bend having a third angle, and the truss further comprises: a fourth bend separating the second substantially straight section of the first side portion and the fifth substantially straight section of the center portion, the fourth bend having a fourth angle; and a fifth bend separating the third substantially straight section of the second side portion and the sixth substantially straight section of the center portion, the fifth bend having a fifth angle.
8. The truss of claim 7, wherein a length of the fifth substantially straight section is approximately equal to a length of the sixth substantially straight section.
9. The truss of claim 7, wherein the third angle is in a range between approximately 5 degrees and approximately 25 degrees.
10. The truss of claim 7, wherein the fourth angle and the fifth angle are both in a range between approximately 60 degrees and approximately 80 degrees.
11. The truss of claim 7, wherein the first bend, the second bend, the fourth bend, and the fifth bend have a common radius.
12. A foundation plate for reinforcing a pole, the foundation plate comprising: a first portion, a second portion, a third portion, and a fourth portion; and one or more apertures extending through foundation plate, wherein: the first portion forms a first flange and the fourth portion forms a second flange, the second portion extends from the first portion at a first angle, the third portion extends from the fourth portion at a second angle, and the foundation plate is configured to attach to the pole at an underground location when the pole is embedded in the ground.
13. The foundation plate of claim 12, wherein a length of the first portion is approximately equal to a length of the fourth portion.
14. The foundation plate of claim 12, wherein a length of the second portion is approximately equal to a length of the third portion.
15. The foundation plate of claim 12, wherein the first angle is approximately equal to the second angle.
16. The foundation plate of claim 12, wherein the second portion and the third portion intersect to form a third angle.
17. A pole reinforcement system comprising: a truss comprising: an elongate body having a pair of opposite ends connected by a pair of longitudinal edges, a first side portion including one of the longitudinal edges, a second side portion including the other of the longitudinal edges, and a center portion connecting the first side portion and the second side portion, wherein the first side portion includes a first substantially straight section and a second substantially straight section separated by a first bend having a first angle that is greater than 45 degrees, wherein the second side portion includes a third substantially straight section and a fourth substantially straight section separated by a second bend having a second angle that is greater than 45 degrees; and one or more bands configured to attach the truss to a pole.
18. The pole reinforcement system of claim 17 further comprising: a foundation plate attachable to the pole at an underground location on the pole.
19. The pole reinforcement system of claim 18, wherein the foundation plate comprises: a first portion, a second portion, a third portion, and a fourth portion; and one or more apertures extending through foundation plate, wherein: the first portion forms a first flange and the fourth portion forms a second flange, the second portion extends from the first portion at a first angle, the third portion extends from the fourth portion at a second angle, and the foundation plate is configured to attach to the pole at an underground location when the pole is embedded in the ground.
20. The pole reinforcement system of claim 17, wherein the truss further comprises a fin extending outwardly from an outer surface of the truss, the fin being located at an underground location on the truss when the truss is installed on the pole.
Description
BRIEF DESCRIPTION OF THE FIGURES
[0029] Reference will now be made to the accompanying figures and flow diagrams, which are not necessarily drawn to scale, and wherein:
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DETAILED DESCRIPTION
[0052] The disclosed technology includes a truss for reinforcing a pole. As disclosed herein the truss can reinforce a pole (e.g., a wooden utility pole, telephone poles, and the like) to increase its useful lifetime and allow it to withstand environmental forces. For example, a truss in accordance with the disclosed technology can be attached to a damaged utility pole to create a splint or bridge across the weakened portion of the pole, thereby providing a secure vertical structure without requiring replacement of the pole and without removing the pole from service.
[0053] Aspects of the disclosed technology will be described more fully hereinafter with reference to the accompanying drawings. This disclosed technology can, however, be embodied in many different forms and should not be construed as limited to the examples set forth therein.
[0054] In the following description, numerous specific details are set forth. However, it is to be understood that various examples of the disclosed technology can be practiced without these specific details. In other instances, well-known methods, structures, and techniques have not been shown in detail in order to not obscure an understanding of this description. References to “one embodiment,” “an embodiment,” “example embodiment,” “some embodiments,” “certain embodiments,” “various embodiments,” “one example,” “an example,” “some examples,” “certain examples,” “various examples,” etc., indicate that the example(s) of the disclosed technology so described can include a particular feature, structure, or characteristic, but not every implementation of the disclosed technology necessarily includes the particular feature, structure, or characteristic.
[0055] Throughout the specification and the claims, the following terms take at least the meanings explicitly associated herein, unless the context clearly dictates otherwise. The term “or” is intended to mean an inclusive “or.” Further, the terms “a,” “an,” and “the” are intended to mean one or more unless specified otherwise or clear from the context to be directed to a singular form.
[0056] Unless otherwise specified, the use of the ordinal adjectives “first,” “second,” “third,” etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
[0057] As used herein, the term “pole” includes various forms and definitions of elongated support members (e.g., posts, pilings), whether or not constructed of wood.
[0058] Unless otherwise specified, any range of values provided herein is inclusive of its endpoints. For example, the phrases “between 4 and 6” and “from 4 to 6” both indicate a range of values that includes 4, 6, and all values therebetween.
[0059] Various systems, apparatuses, and methods are disclosed herein for reinforcing, and increasing the structural integrity of, a pole.
[0060] As shown in
[0061] The disclosed truss 100 can provide several benefits over existing truss designs. For example, the truss 100 can provide increased strength to weight efficiency, which can increase material efficiency and decrease manufacturing costs, and/or can increase the weak to strong axis bending capacity ratio. Alternatively or in addition, the truss 100 can have a general cross-sectional shape that permits a single truss to fit an increased range of pole sizes and/or diameters. For example, the truss 100 does not necessarily require a taper if the truss is particularly long (e.g., for taller poles), as is typically required for existing truss designs. This can enable upgrade solutions, which can also act in a restorative capacity if decay is present in the pole. The general cross-sectional shape of the truss 100 also enables the truss 100 be put under pretension such that the truss is “spring loaded,” which has the benefit of maintaining banding tension following installation of the truss 100 on a pole. Moreover, the truss 100 can provide an increased projected surface area than previous designs, which can improve foundation capacity. Further, because the profile of the truss 100 bends inward and can therefore fit on smaller poles, stronger trusses can be used to upgrade poles to higher bending capacities, and a truss can be installed to a height above ground that can upgrade the class equivalent of the pole (see, e.g.,
[0062] Referring now to
[0063] The truss 100 can include opposing side portions that are on either side of a central portion. Each side portion can include two straight sections. The central portion can include two straight sections. Each straight section can be separated by a bend. The truss 100 can be symmetrical such that the central portion is symmetrical and either side portion is a mirror image of the opposite side portion. More specifically, the truss 100 can include a first straight section TSS1, a second straight section TSS2, and a third straight section TSS3. The first straight section TSS1, second straight section TSS2, third straight section TSS3 can be substantially straight (i.e., not necessarily perfectly “straight”). The first straight section TSS1 and second straight section TSS2 can be separated by a first bend TB1, and the second straight section TSS2 and the third straight section TSS3 can be separated by a second bend TB2. As mentioned, the truss 100 can be symmetrical, such that the third straight section TSS3 of a first half of the truss 100 can be separated by the third straight section TSS3 of a second half of the truss 100 by a third bend TB3. In some instances, the two third straight sections TSS3 and the third bend TB3 can be referenced communally as a center portion of the truss 100. Each first bend TB1 can have the same radius, each second bend TB2 can have the same radius, and/or each third bend TB3 can have the same radius. One, some, or all of the various bends TB1, TB2, TB3 can have a different radius. Alternatively, some or all of the various bends TB1, TB2, TB3 can have the same radius. For example, each bend TB1, TB2, TB3 can have an approximately 1.0-inch radius.
[0064] As shown most clearly in
TABLE-US-00001 TABLE 1 Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 TL1 (in.) 2.5 2 2.5 2.25 1.75 1.5 TL2 (in.) 2.75 2.5 3 2.5 2.25 1.75 TL3 (in.) 4.5 3.75 5 4.25 3.5 2.875
[0065] Each bend TB1, TB2, TB3 can have a bend angle in a corresponding angle range. For example the first bend TB1 can have a first angle TA1 from a first angle range, the second bend TB2 can have a second angle TA2 from a second angle range, and the third bend TB3 can have a third angle TA3 from a third angle range. The first angles TA1 and second angles TA2 can be greater than 45 degrees. As non-limiting examples, the first angle range can be between approximately 60 degrees and approximately 80 degrees, the second angle range can be between approximately 50 degrees and approximately 70 degrees, and the third angle range can be between approximately 5 degrees and approximately 25 degrees. As a more specific example, the first angle TA1 can be approximately 70 degrees, the second angle TA2 can be approximately 60 degrees, and the third angle TA3 can be approximately 15 degrees. Unless otherwise specified, the angles described herein are measured from the outside of the truss 100 (i.e., from the side of the truss 100 that is opposition the interior portion 102). As mentioned above, the radius of each bend TB1, TB2, TB3 can be approximately 1 inch. Different radii are contemplated by the present disclosure, however. For example, the radius of at least one bend TB1, TB2, TB3 can be in a range between approximately 0.5 inch to approximately 1 inch, and/or the radius of at least one bend TB1, TB2, TB3 can be in a range between approximately 1 inch and 1.5 inches. The various bends TB1, TB2, TB3 can have the same radius. Alternatively, one, some, or all of the various bends TB1, TB2, TB3 can have different radii. Optionally, the various dimensions and angles of the truss 100 can result in the ends of the truss's 100 (as view in cross section) as being perpendicular to the tangential edge of a particularly sized pole at installation (see, e.g.,
[0066] The geometry of the truss 100 can be such that the open end of the truss 100 has two widths: an inner width IW and an outer width OW. The inner width IW can correspond to the inner surface of the truss material, and the outer width OW can correspond to the outer surface of the truss material. As a non-exclusive example, the inner width IW can be approximately 4.8 inches, and the outer width OW can be approximately 5.0 inches. As additional examples, the inner width IW can be in a range between approximately 2.0 inches and approximately 4.0 inches, a range between approximately 4.0 inches and approximately 6.0 inches, a range between approximately 6.0 inches and approximately 8.0 inches, a range between approximately 8.0 inches and approximately 10.0 inches, or a range between approximately 10.0 inches and approximately 12.0 inches. Alternatively or in addition, the outer width OW can be in a range between approximately 2.0 inches and approximately 4.0 inches, a range between approximately 4.0 inches and approximately 6.0 inches, a range between approximately 6.0 inches and approximately 8.0 inches, a range between approximately 8.0 inches and approximately 10.0 inches, or a range between approximately 10.0 inches and approximately 12.0 inches. Further the truss 100 can have a height H. As a non-exclusive example, the height H can be approximately 3.4 inches. As additional examples, the height H of the truss 100 can be in a range between approximately 1.0 inch and approximately 2.0 inches, a range between approximately 2.0 inches and approximately 3.0 inches, a range between approximately 3.0 inches and approximately 4.0 inches, a range between approximately 4.0 inches and approximately 5.0 inches, a range between approximately 6.0 inches and approximately 6.0 inches, or a range between approximately 6.0 inches and approximately 7.0 inches.
[0067] As shown in
[0068] Stated otherwise, the bottom end of the truss 100 can have a geometry such that the bottom end of the truss 100 can act as a spade or shovel blade and is configured to drive into the soil for ease of installation and/or for forcing the truss 100 into the exterior surface of the pole as the truss 100 is driven downward. That is to say, the truss 100 can be installed on an in-service pole that is already installed. As will be described more fully herein, the geometry of the truss 100 (e.g., a taper or angled nature of the truss 100) can be such that, as a downward force is applied to the top edge of the truss 100, the truss 100 moves downwardly into the ground but also toward the pole (i.e., in a direction that is radially inward relative a central axis of the pole). Alternatively or in addition, the truss 100 can be configured to be installed on a pole prior to the pole being installed.
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[0070] The length of the blank 300 can correspond to a length of the resulting truss 100. Stated otherwise, the length of the blank 300 and resulting truss 100 can correspond to the distance the truss 100 extends along a pole when the truss 100 is installed on the pole. As shown in
[0071] The material (of the blank 300 and/or the truss 100) can have any desired thickness. As a non-limiting example, the thickness can be between approximately 3/16 inch and approximately 5/16 inch. The material can be steel (e.g., 100 ksi steel) or any other material capable of handling the desired stresses incident on the pole and/or truss 100.
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[0073] Referring now to
[0074] Moreover, pole setting augers, which are generally used to set poles, typically create a hole that is several inches larger in diameter than the pole itself. Depending on the backfill material and/or the procedure for tamping the backfill material, the backfill material (which is located between the outer surface of the pole and the inner surfacer of the augured hole) can provide a relatively weak soil resistance due to, for example, weaker compaction as compared to the virgin soil before the pole was embedded. This can contribute to and/or expedite an eventual lean of the pole. Moreover, the weakest foundational soil is typically found near the top of the embedment (e.g., from the groundline to a depth between approximately ½ foot and approximately 2 feet).
[0075] The foundation plate 600 can be configured to attach to a pole, such as a subterranean location (i.e., below ground level) on the pole. The foundation plate 600 can include one or more slots or apertures 602 (referenced hereon as apertures 602), which can enable the foundation plate 600 to be bolted, strapped, or otherwise attached to the pole. Alternatively or in addition, one or more of the apertures 602 can be used to perform a subsequent inspection and/or remediation of the pole. That is, the apertures 602 can enable a technician to bore an inspection hole into the pole through a given aperture 602, and/or the technician can bore a hole into the pole via an aperture 602 and insert remediating materials (e.g., antimicrobial treatment) into the bored hole.
[0076] As shown perhaps most clearly in
[0077] Stated otherwise, the bottom edge of the foundation plate (e.g., each point 604, the rounded edge) can form and/or act as a spade or shovel blade that is configured to drive into the soil for ease of installation and/or for forcing the foundation plate 600 into the exterior surface of the pole as the foundation plate 600 is driven downward. That is to say, the foundation plate 600 can be installed on an in-service pole that is already installed. As will be described more fully herein, the geometry of the foundation plate 600 (e.g., a taper or angled nature of the foundation plate 600) can be such that, as a downward force is applied to the top edge of the foundation plate 600, the foundation plate 600 moves downwardly into the ground but also toward the pole (i.e., in a direction that is radially inward relative a central axis of the pole). Alternatively or in addition, the foundation plate 600 can be configured to be installed on a pole prior to the pole being installed.
[0078] The foundation plate 600 can have a cross-sectional shape that defines a hollow interior portion 606. The interior portion 606 (and/or any dimensional symmetry of the foundation plate 600) can help ensure the foundation plate 600 is centered on the pole, which can help ensure secure placement and/or attachment of the foundation plate 600 to the pole. That is to say, the foundation plate 600 can be configured to be positioned next to the pole but without being attached to the pole. Thus, the foundation plate 600 can provide stabilization to the pole without necessarily being attached to the pole.
[0079] The cross-sectional shape of the foundation plate 600 can extend along the entire length of the foundation plate 600. Stated otherwise, the foundation plate 600 can have a substantially consistent cross-sectional shape along the length of the foundation plate 600. Alternatively, one or more portions of the truss 100 can have a cross-sectional shape different from that shown in
[0080] The foundation plate 600 can include opposing side portions that are on either side of a center line. Each side portion can include a point 604. Each straight section can be separated by a bend. The foundation plate 600 can be symmetrical such that either side portion is a mirror image of the opposite side portion. More specifically, the foundation plate 600 can include a first straight section PSS1 and a second straight section PSS2. (As used herein, reference identifiers beginning with a “T” refer to an element of the truss 100, whereas reference identifiers beginning with a “P” refer to an element of the foundation plate 600.) The first straight section PSS1 and the second straight section PSS2 can be separated by a first bend PB1. As mentioned, the foundation plate 600 can be symmetrical, such that the second straight section PSS2 of a first half of the foundation plate 600 can be separated by the second straight section PSS2 of a second half of the foundation plate 600 by a second bend PB2. Each first bend PB1 can have the same radius and/or each second bend TB2 can have the same radius. One, some, or all of the various bends PB1, PB2 can have a different radius. Alternatively, some or all of the various bends PB1, PB2 can have the same radius. For example, the bends PB1, PB2 can have a radius in the range between approximately 0.5 inches and approximately 1 inch. As a more specific example, each bend can have an approximately 0.75-inch radius. The various bends PB1, PB2 can have the same radius. Alternatively, one, some, or all of the various bends PB1, PB2 can have different radii.
[0081] As shown perhaps most clearly in
[0082] Each bend PB1, PB2 can have a bend angle in a corresponding angle range. For example, the first bend PB1 can have a first angle from a first angle range, and the second bend PB2 can have a second angle from a second angle range. As non-limiting examples, the first angle range can be between approximately 140 degrees and approximately 170 degrees, and the second angle range can be between approximately 110 degrees and approximately 150 degrees. As a more specific example, the first angle PA1 can be approximately 155 degrees, and the second angle PA2 can be approximately 130 degrees. Unless otherwise specified, the angles described herein are measured from the side the foundation plate 600 indicated in
[0083] The first portion 611 and the fourth portion 614 can be substantially parallel, and/or the first portion 611 and the fourth portion 614 can be located on substantially the same plane. The interior portion 606 can have a width that is in a range between approximately 8 inches and approximately 16 inches. As a more specific example, the interior portion 606 can have a width that is in a range between approximately 11 inches and approximately 13 inches. As an even more specific example, the width of the interior portion 606 can be approximately 12 inches. Further, the foundation plate 600 can have a height H. As non-exclusive examples, the height H of the foundation plate 600 can be in a range between approximately 1 inch approximately 2 inches, a range between approximately 2 inches and approximately 3 inches, a range between approximately 3 inches and approximately 4 inches, a range between approximately 4 inches and approximately 5 inches, and a range between approximately 5 inches and approximately 6 inches. As a more specific example, the height H of the foundation plate 600 can be approximately 2⅔ inches.
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[0085] The length of the blank 700 can correspond to a length of the resulting foundation plate 600. Stated otherwise, the length of the blank 700 and resulting foundation plate 600 can correspond to the distance the foundation plate 600 extends along a pole when the foundation plate 600 is installed on the pole. The blank 700 and the foundation plate 600 can be of different lengths, depending on the desired scenario and/or application. For example, the foundation plate 600 can a length in a range between approximately 16 inches and approximately 40 inches. As a more specific example, the length of the foundation plate 600 can be approximately 20 inches. As will be appreciated, a particular length for a specific application or pole location can be based at least in part on a current or anticipated load of the pole, anticipated shear and/or bending forces (e.g., associated with wind or other elements), the compactness of the foundational soil, or the like.
[0086] The material (of the blank 700 and/or the foundation plate 600) can have any desired thickness. As a non-limiting example, the thickness can be between approximately 3/16 inch and approximately ½ inch. As a more specific example, the thickness can be approximately 5/16 inch. The material can be steel (e.g., 100 ksi steel) or any other material capable of handling the desired stresses incident on the pole and/or truss 100.
[0087] As illustrated in
[0088] Optionally, two foundation plates 600 can be installed (e.g., on opposite sides of the pole) such that the direction of the transverse load intersects (or is substantially perpendicular to) the plane associated with the first portion 611 and/or fourth portion 614. The foundation plates 600 can be installed at substantially the same height along the pole (e.g., as illustrated in
[0089] As shown in
[0090] Alternatively or in addition, referring to
[0091] Alternatively or in addition, the fin 900 can be attached to the truss 100 without additional fasteners. For example, referring to
[0092] Regardless of attachment method, the fin 900 can increase the contact surface area of the truss assembly between the truss and the soil. This additional surface area can increase the pole's overturn moment. Stated otherwise, the fin 900 can provide an improved foundation capacity for the pole, which can help prevent pole leaning and/or overturn. The surface area of the shark fin and the soil type can directly correlate to the increase in overturn capacity. Thus, the dimensions of the fin 900 can be adjusted based on the soil type in which a particular pole is installed, such that a desired overturn capacity can be reached without using unnecessary material for the fin 900.
[0093] Although not illustrated, it is contemplated that multiple fins 900 can be attached to a single truss 100. The fins 900 can be positioned at different depths below ground. Alternatively or in addition, two or more fins 900 can be positioned at the same or different depths (e.g., extending radially outwardly from the center of the pole in different directions).
[0094] It is contemplated that the fin 900 can be attachable to (or modified to be attachable to) any existing truss (i.e., retrofitting a prior art truss). That being said, the disclosed truss 100 provides large flat surfaces, which increases the ease of design for inclusion of the fin 900 and ease of attachment of the fin 900 to the truss's 100 body.
[0095] While certain examples of the disclosed technology have been described in connection with what is presently considered to be the most practical embodiments, it is to be understood that the disclosed technology is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
[0096] This written description uses examples to disclose certain embodiments of the disclosed technology, including the best mode, and also to enable any person skilled in the art to practice certain embodiments of the disclosed technology, including making and using any devices or systems and performing any incorporated methods. The patentable scope of certain embodiments of the disclosed technology is defined in the claims, and can include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.