Equipment foundation mounting structure

Abstract

The goal is to increase the allowable stress per equipment foundation compared to when the equipment foundation is attached to the ridges of a corrugated roof deck. [Solution] The mounting structure for the equipment foundation comprises a stud whose base end is attached to an existing beam through the valley of a corrugated roof deck supported by an existing beam, a steel pipe into which the stud is inserted and from which the tip of the stud protrudes, an equipment foundation positioned on the upper side of the peak of the roof deck, having a through hole into which the tip of the stud is inserted and a base plate that contacts the end face of the steel pipe, and a nut that is tightened on the portion of the stud that protrudes from the through hole so that a compressive force acts on the steel pipe.

Description

Technical Field

[0001] The present disclosure relates to an attachment structure for equipment foundations.

Background Art

[0002] The foundation for installing equipment on a deck base roof described in Patent Document 1 is installed on a deck base roof including a steel deck formed by a peak surface, a valley bottom surface, and an inclined surface, a roof insulation material, and a roof waterproof sheet. It has a lower member attached to the valley bottom surface of the steel deck directly above the beam, an upper member installed on the lower member and penetrating the roof insulation material and the roof waterproof sheet, and a waterproof reinforcement sheet installed straddling a part of the upper member and a part of the roof waterproof sheet, and equipment installation means is provided on the upper member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When installing solar equipment or the like on an existing corrugated roof deck, a gantry for attaching the solar equipment or the like must be retrofitted to the roof deck. Conventionally, since the foundation (equipment foundation) of the gantry is attached to the peak portion of the corrugated roof deck, the allowable stress per foundation is low.

[0005] The problem of the present disclosure is to increase the allowable stress per equipment foundation as compared with the case where the equipment foundation is attached to the peak portion of the corrugated roof deck.

Means for Solving the Problems

[0006] The mounting structure for the equipment foundation according to the first embodiment is characterized by comprising: a stud whose base end is attached to an existing beam through the valley portion of a corrugated roof deck supported by an existing beam; a steel pipe into which the stud is inserted and from which the tip portion of the stud protrudes; an equipment foundation positioned above the peak portion of the roof deck, having a through hole into which the tip portion of the stud is inserted and a base plate that contacts the end face of the steel pipe; and a nut that is tightened onto the tip portion of the stud that protrudes from the through hole so as to act a compressive force on the steel pipe.

[0007] According to the above embodiment, the nut is tightened to the tip of the stud so that a compressive force acts on the steel pipe. As a result, the compressive, tensile, and shear forces acting on the equipment foundation are transmitted to the existing beam via the steel pipe and stud. Therefore, the allowable stress per equipment foundation can be increased compared to the case where the equipment foundation is attached to the peaks of a corrugated roof deck.

[0008] The mounting structure for the equipment foundation according to the second embodiment is characterized in that, in the mounting structure for the equipment foundation described in the first embodiment, the foundation plate is separated vertically from the peak portion of the roof deck.

[0009] According to the above embodiment, the base plate is separated vertically from the peaks of the roof deck. Therefore, compressive force can be effectively applied to the steel pipe.

[0010] The mounting structure for the equipment foundation according to the third embodiment is characterized in that, in the mounting structure for the equipment foundation according to the first or second embodiment, the equipment foundation is rectangular in shape and has a base plate, a partition plate positioned above the base plate and spaced apart from the base plate, and a pair of connecting plates connecting both ends of the base plate and both ends of the partition plate, respectively, and is provided with a support column to which the equipment is fixed, and the partition plate has mounting holes formed therein for attaching the support column, the mounting holes extend in one direction along the surface of the partition plate, and the position of the support column in one direction can be adjusted.

[0011] According to the above embodiment, the position of the support column can be adjusted. [Effects of the Invention]

[0012] According to this disclosure, the allowable stress per equipment foundation can be increased compared to the case where the equipment foundation is attached to the peaks of a corrugated roof deck. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view showing a roof deck to which an equipment foundation is attached by the equipment foundation mounting structure according to the embodiment of this disclosure. [Figure 2] This is a perspective view showing an equipment foundation attached to a roof deck by an equipment foundation mounting structure according to an embodiment of this disclosure. [Figure 3] This is a process diagram showing the steps for attaching an equipment foundation to a roof deck using an equipment foundation mounting structure according to the present disclosure, specifically the steps for attaching studs and steel pipes to an H-shaped steel beam. [Figure 4] This is a process diagram showing the process of attaching an equipment foundation to a roof deck using the equipment foundation mounting structure according to the embodiment of this disclosure, the process of placing the equipment foundation on the roof deck. [Figure 5] This is a process diagram showing the process of attaching an equipment foundation to a roof deck using the equipment foundation mounting structure according to the embodiment of this disclosure, the process of placing a support column on the equipment foundation. [Figure 6] This is a front view showing the equipment foundation attached to the roof deck by the equipment foundation mounting structure according to the embodiment of this disclosure. [Figure 7] This is a side view showing the equipment foundation attached to the roof deck by the equipment foundation mounting structure according to the embodiment of this disclosure. [Figure 8] This is a perspective view showing a state in which a support column is placed on an equipment foundation that has been attached by the equipment foundation mounting structure according to the embodiment of this disclosure. [Figure 9]The front view shows the state where a column is attached to the equipment foundation installed by the attachment structure of the equipment foundation according to the embodiment of the present disclosure. [Figure 10] The side view shows the state where a column is attached to the equipment foundation installed by the attachment structure of the equipment foundation according to the embodiment of the present disclosure. [Figure 11] The front view shows the state where the column of the equipment foundation installed by the attachment structure of the equipment foundation according to the embodiment of the present disclosure is moved. [Figure 12] The front view shows the state where the column of the equipment foundation installed by the attachment structure of the equipment foundation according to the embodiment of the present disclosure is moved.

Mode for Carrying Out the Invention

[0014] An example of the attachment structure of the equipment foundation according to the embodiment of the present disclosure will be described with reference to FIGS. 1 to 12. The arrow H shown in each figure indicates the vertical direction, which is the up-and-down direction of the equipment foundation. The arrow W shown in each figure indicates the width direction of the equipment foundation, which is a horizontal direction orthogonal to the arrow H. The arrow D shown in each figure indicates the depth direction of the equipment foundation, which is a horizontal direction orthogonal to the arrow H and the arrow W.

[0015] Here, the attachment structure of the equipment foundation of the present embodiment is a structure that can be retrofitted to a roof deck, which is a corrugated sheet metal roofing material. The equipment foundation is a member that constitutes a gantry for attaching solar equipment or the like to the roof deck.

[0016] (Roof deck 100) As shown in FIG. 1, the roof deck 100 to which the equipment foundation 20 is attached is formed in a wave shape by bending sheet metal. Specifically, the peak portions 100a and the valley portions 100b are arranged side by side in the width direction, and the peak portions 100a and the valley portions 100b extend in the depth direction. Further, an inclined portion 100c extending in the depth direction is provided between the peak portion 100a and the valley portion 100b. The thickness direction of the peak portion 100a and the valley portion 100b is the up-and-down direction, and the thickness direction of the inclined portion 100c is inclined with respect to the width direction.

[0017] Furthermore, the roof deck 100 is supported from below by H-shaped steel 120 extending in the width direction. Specifically, a plurality of H-shaped steels 120 are provided at intervals in the depth direction, and are formed including an upper flange 120a, a lower flange 120b, and a web 120c. Then, the upper surface of the upper flange 120a of the H-shaped steel 120 contacts the lower surface of the trough portion 100b of the roof deck 100, so that the H-shaped steel 120 supports the roof deck 100 from below. The H-shaped steel 120 is an example of an existing beam.

[0018] (Equipment foundation 20) As shown in FIG. 2, the equipment foundation 20 attached to the roof deck 100 includes a base plate 22, a partition plate 28 disposed above the base plate 22 and spaced apart from the base plate 22, a pair of connection plates 34 spaced apart in the width direction, and a pair of support plates 38. The equipment foundation 20 is an example of a foundation.

[0019] - Base plate 22 - The base plate 22 has a rectangular shape extending in the width direction when viewed from the up and down direction with the plate thickness direction as the up and down direction. And in the state where the equipment foundation 20 is attached to the roof deck 100, the base plate 22 is disposed so as to straddle a pair of adjacent trough portions 100b and is spaced apart from the peak portion 100a in the up and down direction (see FIG. 6).

[0020] Also, a pair of circular through holes 22a are formed in the base plate 22, and the pair of through holes 22a are arranged side by side in the width direction.

[0021] - Partition plate 28 - As shown in FIG. 2, the partition plate 28 is disposed above the base plate 22, has a rectangular shape extending in the width direction when viewed from the up and down direction with the plate thickness direction as the up and down direction. And the length of the partition plate 28 in the width direction is the same as that of the base plate 22 in the width direction.

[0022] Furthermore, the partition plate 28 has a pair of elongated holes 28a that extend in the width direction and penetrate the partition plate 28, and the pair of elongated holes 28a are spaced apart in the depth direction. Then, the support column 130, to which equipment (not shown) is fixed, is mounted on the partition plate 28 as shown in Figure 8. The width direction is one example of a direction along the surface of the partition plate 28, and the elongated holes 28a are an example of mounting holes.

[0023] This support column 130 comprises a main body 132 with a rectangular cross-section that extends vertically, and a base plate 134 attached to the lower end of the main body 132. The base plate 134 is rectangular in shape and extends in the depth direction, and a pair of through holes 134a (see Figure 5) are formed in the base plate 134 with the main body 132 in between.

[0024] -Connecting plate 34- As shown in Figure 2, the connecting plates 34 are provided in pairs, spaced apart in the width direction, with the plate thickness direction being the width direction. The edge of the base plate 22 is attached to the lower edge of the connecting plates 34, and the edge of the separation plate 28 is attached to the upper edge of the connecting plates 34. In this way, the pair of connecting plates 34 connect both ends of the base plate 22 and both ends of the separation plate 28, respectively. The base plate 22, the separation plate 28, and the pair of connecting plates 34 form a rectangular cylindrical shape.

[0025] -Support plate 38- As shown in Figure 2, the support plates 38 are sandwiched between the base plate 22 and the partition plate 28, and a pair is provided spaced apart in the width direction. The lower edge of the support plate 38 is attached to the upper surface of the base plate 22, and the upper edge of the support plate 38 is attached to the lower surface of the partition plate 28. Alternatively, the support plates 38 may be sandwiched between the base plate 22 and the partition plate 28, and a pair may be provided spaced apart in the depth direction.

[0026] (Installation procedure for equipment foundation 20) Next, the installation procedure for attaching the equipment foundation 20 to the roof deck 100 will be explained, along with the components used to attach the equipment foundation 20 to the roof deck 100.

[0027] First, as shown in Figure 3, threaded studs 40 (hereinafter simply referred to as "studs 40") are attached to the valleys 100b of adjacent roof decks 100 in the width direction. Specifically, the lower end (base end) of the stud 40 is attached to the upper flange 120a of the H-shaped steel 120 via the valley 100b. More specifically, an electric current is passed between the stud 40 and the upper flange 120a, and the stud 40 is attached to the upper flange 120a by deck-through welding. The upper end portion (tip portion) of the attached stud 40 protrudes above the peak portion 100a (see Figure 4).

[0028] Furthermore, as shown in Figures 3 and 4, the steel pipes 44 are placed over the studs 40. In other words, the studs 40 are inserted into the steel pipes 44. With the steel pipes 44 placed over the studs 40, the lower end of the steel pipes 44 contacts the valley portion 100b, and the upper end of the steel pipes 44 protrudes upward from the peak portion 100a in the vertical direction. In addition, the upper end portion (tip portion) of the studs 40, as described above, protrudes upward from the steel pipes 44.

[0029] Furthermore, as shown in Figures 4 and 5, the equipment foundation 20 is placed over the roof deck 100. Specifically, the equipment foundation 20 is placed over the roof deck 100 so that the upper end portion of the stud 40 is inserted into the through hole 22a formed in the foundation plate 22 of the equipment foundation 20. In this state, as shown in Figures 6 and 7, the upper end portion of the stud 40 protrudes upward from the through hole 22a of the foundation plate 22. Furthermore, the foundation plate 22 of the equipment foundation 20 comes into contact with the upper end surface of the steel pipe 44, and the foundation plate 22 and the ridge portion 100a of the roof deck 100 are separated in the vertical direction. Then, a nut 46 is tightened onto the upper end portion (tip portion) of the stud 40, and the foundation plate 22 is pressed towards the steel pipe 44, thereby acting a compressive force on the steel pipe 44. In other words, by tightening a nut 46 onto the portion of the stud 40 that protrudes from the through hole 22a and pressing the foundation plate 22 towards the steel pipe 44, a compressive force is acted on the steel pipe 44.

[0030] Furthermore, as shown in Figures 5 and 8, the support column 130 is attached to the partition plate 28. Specifically, the support column 130 is placed on the partition plate 28 such that the through hole 134a formed in the base plate 134 of the support column 130 is aligned with the elongated hole 28a formed in the partition plate 28.

[0031] In this state, a pair of bolts 50 are inserted from below into the elongated holes 28a and through holes 134a, respectively, and a pair of nuts 54 are tightened onto the bolts 50 as shown in Figures 9 and 10. This attaches the support column 130 to the equipment foundation 20.

[0032] Here, the elongated hole 28a extends in the width direction. Therefore, as shown in Figures 11 and 12, the position of the support column 130 can be adjusted by loosening the bolt 50 and moving it in the width direction.

[0033] (Mounting structure for equipment foundation 10) As described above, the mounting structure 10 for the equipment foundation is provided with a stud 40 whose base end is attached to the H-shaped steel 120, and a steel pipe 44 into which the stud 40 is inserted, as shown in Figures 6 and 7. Furthermore, the mounting structure 10 for the equipment foundation is provided with an equipment foundation 20 having a through hole 22a into which the tip portion of the stud 40 is inserted and a base plate 22 that contacts the end face of the steel pipe 44, and a nut 46 that is tightened on the stud 40 so that a compressive force acts on the steel pipe 44.

[0034] In this way, in the equipment foundation mounting structure 10, the equipment foundation 20 is installed on the roof deck 100 by tightening the nuts 46 onto the studs 40 so that a compressive force acts on the steel pipes 44.

[0035] (action) Next, we will explain the case where a force acts on the equipment foundation 20 via the support column 130. As shown by arrow A in Figures 9 and 10, when a downward force (compressive force) is applied to the equipment foundation 20, the compressive force is transmitted to the upper flange 120a of the H-shaped steel 120 via the stud 40 and the compressed steel pipe 44.

[0036] Furthermore, as indicated by arrow B, if an upward lifting force (tensile force) acts on the equipment foundation 20, the tensile force is transmitted to the upper flange 120a of the H-shaped steel 120 via the stud 40.

[0037] Furthermore, as indicated by arrow C, if a force (shear force) that moves the equipment foundation 20 horizontally acts on the equipment foundation 20, the shear force is transmitted to the upper flange 120a of the H-shaped steel 120 via the compressed steel pipe 44.

[0038] (summary) As explained above, in the equipment foundation mounting structure 10, the compressive, tensile, and shear forces acting on the equipment foundation 20 are transmitted to the upper flange 120a of the H-shaped steel 120 via the studs 40 and the compressed steel pipes 44. This allows for a larger allowable stress per equipment foundation 20 compared to the case where the equipment foundation 20 is attached to the ridge of the roof deck.

[0039] Furthermore, in the mounting structure 10 for the equipment foundation, the foundation plate 22 is separated vertically from the ridge portion 100a of the roof deck 100, thereby allowing compressive force to be effectively applied to the steel pipe 44.

[0040] Furthermore, in the mounting structure 10 for the equipment foundation, the elongated holes 28a formed in the partition plate 28 extend in the width direction so that the support column 130 can move. This makes it possible to adjust the position of the support column 130.

[0041] Although this disclosure has described specific embodiments in detail, it will be apparent to those skilled in the art that this disclosure is not limited to these embodiments, and that various other embodiments are possible within the scope of this disclosure. For example, although not specifically described in the above embodiments, insulation material may be attached to the roof deck 100. In this case, by adopting the equipment foundation mounting structure 10 according to this embodiment, the cutout area for the insulation material can be reduced.

[0042] Furthermore, although not specifically explained in the above embodiment, the installation of the equipment foundation 20 may be done either as a post-construction or simultaneously with the installation of the roof deck 100.

[0043] Furthermore, in the above embodiment, the roof deck 100 was not inclined with respect to the horizontal direction, but it may be inclined.

[0044] Furthermore, although the existing beam in the above embodiment was an H-shaped steel beam 120, it may be a steel beam, for example, a rectangular cylindrical steel pipe beam.

[0045] Furthermore, although there were two support plates 38 in the above embodiment, four support plates may be used to form a rectangular cylindrical shape. [Explanation of Symbols]

[0046] 10. Mounting structure for equipment foundations 20. Equipment foundation 22 Foundation plate 22a Through hole 28 Separation plate 28a Slotted hole (an example of a mounting hole) 34 Connection Plate 40 studs 44 Steel pipe 46 nuts 100 Roof Deck 100a Yamabe 100b Tanibe 120 H-shaped steel (an example of an existing beam) 130 Post

Claims

1. A stud whose base end is attached to the existing beam through the valley of the corrugated roof deck supported by the existing beam, A steel pipe into which the stud is inserted and from which the tip portion of the stud protrudes, The equipment foundation is positioned on the upper side of the ridge of the roof deck and has a base plate that has a through hole into which the tip portion of the stud is inserted and that contacts the end face of the steel pipe, A nut is tightened onto the stud at the tip portion that protrudes from the through hole so that a compressive force acts on the steel pipe, A mounting structure for equipment foundations equipped with [specific features / features].

2. The base plate is separated vertically from the peak of the roof deck. Mounting structure for equipment foundation according to claim 1.

3. The equipment foundation is rectangular and cylindrical in shape, and comprises a base plate, a partition plate positioned above the base plate and separated from the base plate, and a pair of connecting plates that connect both ends of the base plate and both ends of the partition plate, respectively. Support columns are provided to secure the equipment. The partition plate has mounting holes formed therein, into which the support column is attached. The mounting holes extend in one direction along the surface of the partition plate, and the position of the support column can be adjusted in one direction. The mounting structure for the equipment foundation according to claim 1 or 2.

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