Installation structure of rooftop structures

Abstract

The present invention provides a mounting structure for rooftop structures, such as base station antennas, that can be easily, reliably, and securely installed on a rooftop slab without cutting the waterproofing layer. [Solution] A base station antenna 3 is installed on the roof slab 1 of an existing building. Fixing parts 6 are installed in a ring around the skylight body 2a installed on the roof slab 1. An installation part 7 is installed integrally with the fixing part 6 on the roof slab 1. The fixing part 6 is positioned on the peripheral wall of the skylight body 2a. The base station antenna 3 is placed on the installation part 7 and fixed. Non-shrink mortar 9 is filled between the skylight body 2a and the fixing part 6. The frame materials 6a and 6b of the fixing part 6 and the bases 7a and 7b of the installation part 7 are formed from H-shaped steel.

Description

Technical Field

[0001] The present invention relates to an attachment structure for a base station antenna, a parabolic antenna, or a rooftop structure such as an advertising tower installed on the rooftop slab of an existing building such as a building. The rooftop structure such as a base station antenna or a parabolic antenna can be easily installed on the rooftop slab without breaking the waterproof layer, and can be installed securely and firmly so as not to fall over or drop to the ground due to shaking during an earthquake or a typhoon.

Background Art

[0002] Rooftop structures such as base station antennas, parabolic antennas, or advertising towers newly installed on the rooftops of existing buildings such as buildings have conventionally been fixed on the rooftop slab by anchor bolts (post-construction anchors).

[0003] However, fixing by anchor bolts has problems such as breaking the waterproof layer, aging deterioration of post-construction anchors, and furthermore problems such as workability. Also, when attaching to the outer wall of an existing structure such as a rooftop penthouse, preparatory work such as installing a working scaffold is required, and there are problems such as large-scale construction and increased costs.

[0004] Also, there are cases where the structure itself of the existing structure (steel frame structure, ALC board, etc.) cannot be grasped, and there are cases where post-construction anchors cannot be applied as a method of fixing to the existing structure.

[0005] As a method of attaching a rooftop structure to solve these problems, for example, Patent Document 1 discloses an invention of a rooftop antenna pole erection device.

[0006] Briefly explained, the antenna pole is erected and fixed on the rooftop slab inside the parapet by first and second concrete blocks, an antenna pole pedestal, a pipe connection plate, and two support fittings.

[0007] The first and second concrete blocks are installed at intervals on the roof slab inside the parapet, and an antenna pole base is installed straddling the first and second concrete blocks.

[0008] Then, between the first and second concrete blocks, an antenna pole is erected, passing through its base.

[0009] Furthermore, the middle section of the antenna pole is supported by a pipe connection plate attached to the parapet by two support fittings, and the lower end is fitted into an antenna pole erection fitting with a rising surface installed on the roof slab. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] Patent No. 2611806 [Patent Document 2] Special Publication No. 2014-514834 [Overview of the Initiative] [Problems that the invention aims to solve]

[0011] However, the invention described in Patent Document 1 had problems such as requiring a large number of steps to install the antenna pole on the roof and to fix the antenna pole to the roof using these parts.

[0012] Furthermore, there was a problem in that the installation location of the antenna pole was limited to the periphery of buildings with parapets, and it could not be installed anywhere other than the periphery of the rooftop slab, such as the center of the roof.

[0013] Furthermore, installing the antenna poles on the perimeter of buildings posed a safety risk, as they could fall to the ground during earthquakes or typhoons.

[0014] The present invention was made to solve the above problems, and aims to provide a mounting structure for rooftop structures such as base station antennas and parabolic antennas that can be easily fixed onto the rooftop slab without rupturing the waterproof layer, and that can be securely and firmly fixed so that they do not topple over and fall to the ground during earthquakes or typhoons. [Means for solving the problem]

[0015] The present invention relates to a mounting structure for a rooftop structure installed on a rooftop slab of an existing building, comprising: a rooftop structure installation section disposed on the rooftop slab on which the rooftop structure is placed; and a rooftop structure fixing section formed integrally with the rooftop structure installation section and fixed to an existing structure provided on the rooftop slab, wherein the rooftop structure fixing section is formed in an annular shape along the periphery of the existing structure and is fixed to the existing structure.

[0016] Existing structures can be any structure formed integrally with the existing building frame, such as a rooftop slab. For example, (independent) columns installed as lighting poles, RC (reinforced concrete) foundations formed integrally with the rooftop slab at the lower end of equipment such as air conditioning outdoor units, and structural frames such as skylights, pigeon coops, or penthouses are preferred.

[0017] By forming the aforementioned rooftop structure fixing portion in a ring shape along the perimeter of the existing structure, the rooftop structure can be reliably and firmly supported even against horizontal external forces acting on the existing building in any direction.

[0018] Furthermore, when installing a rooftop structure on the roofs of two existing buildings whose walls are adjacent to each other due to extensions or other construction, the rooftop structure fixing parts can be installed on parapets that are continuously provided in one direction along the walls on the rooftop portions of the adjacent walls. In this case, the rooftop structure fixing parts can be installed so as to sandwich the parapet from both sides.

[0019] Also, by filling the space between the existing structure and the rooftop structure fixing part with non-shrinking mortar or an adhesive, the rooftop structure fixing part can be integrally fixed to the existing structure.

[0020] Also, when the rooftop structure fixing part is installed annularly around the existing structure, it may be installed so as to strongly tighten the peripheral wall part of the existing structure like a restraint band. As methods thereof, for example, using a screw jack or the like, or strongly tightening the joining bolts that join the steel shapes forming the rooftop structure fixing part, etc. can be considered.

[0021] Also, when installing a rooftop structure on the rooftops of two existing buildings where walls are constructed adjacent to each other due to an addition or the like, the rooftop structure fixing part may be installed so as to sandwich the parapet from both sides, and a plurality of pressing bolts may be tightened to strongly press the side part of the parapet against the rooftop structure fixing part. It is effective to attach a plurality of pressing bolts at intervals in the continuous direction of the parapet.

[0022] Note that both the rooftop structure fixing part and the rooftop structure installation part can be formed of steel shapes such as H-shaped steel and channel steel.

Effects of the Invention

[0023] According to the present invention, rooftop structures such as base station antennas, parabolic antennas, lightning rods, and lighting towers can be easily installed on the rooftop slab of an existing building without breaking the waterproof layer by using an existing structure such as a top light or a penthouse installed on the rooftop of the existing building as a fixing part. Also, since high-altitude work is not required, a work scaffold is not needed, and installation can be performed in a short period.

[0024] In addition, it is attached to the peripheral wall of an existing structure such as a top light or a penthouse through a new foundation consisting of a rooftop structure fixing part and a rooftop structure installation part. In particular, the rooftop structure fixing part is integrally fixed to the peripheral wall of the existing structure by means of a restraint band method or an adhesive method using non-shrink mortar, etc., so that it can follow the behavior of the horizontal up-and-down movement of the rooftop surface during an earthquake or a typhoon when the building rooftop shakes the most. As a result, it can be installed firmly and securely so that it will not easily fall over or drop to the ground even during an earthquake or a typhoon.

Brief Description of the Drawings

[0025] [Figure 1] This is an embodiment of the present invention, showing a base station antenna newly installed on the rooftop slab of an existing building and a new foundation for fixing the base station antenna to the top light body. Figure (a) is a front view and Figure (b) is a plan view. [Figure 2] This is another embodiment of the present invention, showing a base station antenna newly installed on the rooftop slab of an existing building and a new foundation for fixing the base station antenna to an existing foundation. Figure (a) is a front view and Figure (b) is a plan view. [Figure 3] This is another embodiment of the present invention, showing a parabolic antenna newly installed on the rooftop slab of an existing building and a new foundation for fixing the parabolic antenna to an existing foundation. Figure (a) is a front view and Figure (b) is a plan view. [Figure 4] [[ID=I7]]This is another embodiment of the present invention, showing an example of installing a rooftop structure on the rooftops of two existing buildings whose walls are constructed adjacent to each other due to an extension or the like. Figure (a) is a cross-sectional view of the rooftop structure fixed to a parapet provided on the rooftop part of the walls adjacent to each other, and Figure (b) is a plan view.

Embodiments for Carrying out the Invention

[0026] Figures 1(a) and 1(b) illustrate one embodiment of the present invention, in which a skylight 2 is placed on the roof slab 1 of an existing building, and a base station antenna 3 and an accessory equipment storage box 4 containing the accessories for the base station antenna 3 are placed near the skylight 2.

[0027] The main body 2a of the skylight 2 is an existing reinforced concrete structure and is formed integrally with the roof slab 1. Furthermore, the skylight body 2a is formed higher than the top surface of the roof slab 1 and has a roughly rectangular shape in plan view.

[0028] The base station antenna 3 and the equipment storage box 4 are rooftop structures that were installed later. The base station antenna 3 comprises an antenna body 3a, an antenna support 3b to which the antenna body 3a is attached, and a base plate 3c attached to the lower end of the antenna support 3b, and is installed together with the equipment storage box 4 on a rooftop structure mounting frame (hereinafter referred to as "mounting frame") 5 which is installed on the rooftop slab 1.

[0029] The mounting frame 5 comprises a roof structure fixing section (hereinafter referred to as "fixing section") 6 installed around the top light body 2a, and a roof structure installation section (hereinafter referred to as "installation section") 7 formed integrally with the fixing section 6.

[0030] The fixing part 6 is formed around the skylight body 2a in a roughly rectangular ring shape along the peripheral wall of the skylight body 2a.

[0031] Furthermore, the fixing portion 6 comprises frame members 6a, 6a and frame members 6b, 6b arranged along the parallel sides of the skylight body 2a, and is formed in a roughly rectangular annular (frame-like) shape in plan view that is continuous in the circumferential direction of the skylight body 2a.

[0032] Furthermore, by having extensions 6c, 6c at both ends of the frame material 6b, the frictional resistance between the fixing part 6 and the roof slab 1 is increased, which prevents the mounting frame 5 from rotating around the skylight 2 due to excessive horizontal loads, especially during earthquakes.

[0033] Each frame member 6a and frame member 6b are joined to each other by multiple joining plates 8a and joining bolts 8b, and non-shrink mortar or adhesive 9 is filled between each frame member 6a,6a and frame members 6b,6b and the surrounding wall of the skylight body 2a, thereby integrally fixing the fixing part 6 to the skylight body 2a.

[0034] The fixing part 6 may also be installed such that the frame material 6a and frame material 6b firmly clamp the peripheral wall portion of the skylight body 2a from all four sides (restraint band type).

[0035] Furthermore, the fixing part 6 does not necessarily have to be installed in a roughly rectangular ring shape in plan view. For example, if the skylight body 2a is formed in a roughly circular shape in plan view, it is installed in a circular shape that is continuous in the circumferential direction of the skylight body 2a (figure omitted).

[0036] The installation section 7 comprises multiple bases 7a and bases 7b. The bases 7a, 7a are formed by extending one end of the frame members 6a, 6a of the fixing section 6 parallel to the base station antenna 3 and equipment storage box 4, and the bases 7b, 7b are arranged between the bases 7a, 7a (extended portions of the frame members 6a, 6a). As a result, the installation section 7 is formed in a roughly rectangular shape in plan view.

[0037] As shown in the figure, the bases 7a, 7a may be formed by extending one end of the frame members 6a, 6a parallel to the base station antenna 3 and equipment storage box 4, or a separate member may be arranged and joined to the end or side of the frame members 6a, 6a to form the bases 7a, 7a.

[0038] Then, the base plate 3c and equipment storage box 4 of the base station antenna 3 are fixed to the base 7a and 7b of the installation section 7 by multiple mounting bolts 10.

[0039] Furthermore, the frame members 6a and 6b of the fixing section 6 and the bases 7a and 7b of the installation section 7 are formed from shaped steel such as H-shaped steel or channel steel. In addition, rubber flooring material 11 is interposed between the roof slab 1 and the frame members 6a and 6b of the fixing section 6, and between the roof slab 1 and the bases 7a and 7b of the installation section 7.

[0040] Figures 2(a) and 2(b) illustrate another embodiment of the present invention, in which an existing foundation 12 and an installation frame (roof structure installation frame) 5 are placed on the roof slab 1 of an existing building, and a base station antenna 3 is installed on the installation portion 7 of the installation frame 5.

[0041] The existing foundation 12 is an existing reinforced concrete structure positioned as a foundation for installing rooftop structures such as parabolic antennas, and was formed integrally with the rooftop slab 1 during its construction.

[0042] Furthermore, the existing foundation 12 is formed higher than the top surface of the roof slab 1 and is formed in a roughly rectangular shape when viewed from above.

[0043] Furthermore, the configuration of the base station antenna 3 and the mounting frame 5 is as described in the embodiments shown in Figures 1 and 2.

[0044] Figures 3(a) and 3(b) illustrate another embodiment of the present invention, in which an existing foundation 14 and mounting frame 5 of an existing support column 13 used as a lighting pole or the like are placed on the roof slab 1 of an existing building, and a parabolic antenna 15 is installed on the mounting section 7 of the mounting frame 5.

[0045] The existing foundation 14 is an existing reinforced concrete (RC) structure, formed integrally with the roof slab 1 during the construction of the existing structural elements such as columns and beams. Furthermore, the existing foundation 14 is formed higher than the top surface of the roof slab 1 and has a roughly rectangular shape in plan view.

[0046] The parabolic antenna 15 is a rooftop structure and is formed as a J-Alert antenna, etc., and includes an antenna section 15a, an antenna support column 15b located on the back of the antenna section 15a, a base plate 15c located at the lower end of the antenna support column 15b, and a plurality of diagonal members 15d, 15d symmetrically arranged on the sides of the antenna support column 15b.

[0047] The configuration of the roof structure fixing section 6 and the roof structure installation section 7 of the roof structure mounting frame 5 is as described in the embodiments shown in Figures 1 and 2.

[0048] Figures 4(a) and 4(b) illustrate an example in which lighting poles are installed as rooftop structures on the roofs of two existing buildings whose walls are adjacent to each other due to extensions or other construction work.

[0049] In the figure, a parapet or coping (hereinafter referred to as "parapet") 18 is formed along the rooftop portions of the wall 16a of the existing building 16 and the wall 17a of the existing building 17, which are located adjacent to each other.

[0050] Furthermore, a lighting pole or support column (hereinafter referred to as "lighting pole") 19 is installed on the roof slab 1 of the existing building 17, and the lighting pole 19 is fixed to the parapet 18 via a roof structure mounting frame (hereinafter referred to as "mounting frame") 20.

[0051] The mounting frame 20 comprises a rooftop structure mounting section (hereinafter referred to as "mounting section") 21 on which the lighting pole 19 is installed, and a rooftop structure fixing section (hereinafter referred to as "fixing section") 22 which is formed integrally with the mounting section 21 and fixed to the parapet 18.

[0052] The installation section 21 is formed in a roughly rectangular frame shape in plan view from a pair of frame members 21a, 21a arranged parallel to each other along the parapet 18 on the roof slab 1 and frame members 21b, 21 arranged between the ends of the frame members 21a, 21a, and comprises a pair of upper bases 24, 24 arranged parallel to each other along the parapet 18 between the frame members 21b, 21b of the lower base 23, and the lighting pole 19 is erected on the lower base 23.

[0053] The fixed section 22 comprises a pair of frame members 22a, 22a positioned along the parapet 18 on the roof slabs 1 of the existing building 16 and the existing building 17, respectively.

[0054] Furthermore, a pair of beam members 25, 25 are installed parallel to each other between the frame member 22a placed on the roof slab 1 of the existing building 17 and the upper base 24, 24 of the installation section 21, thereby integrally connecting the installation section 21 and the fixing section 22.

[0055] Furthermore, non-shrink mortar or adhesive 9 is filled between the frame members 22a, 22a of the fixing part 22 and the parapet 18, thereby integrally fixing the roof structure mounting frame (fixing part and mounting part) 20 to the parapet 18.

[0056] In the embodiment shown in Figure 4, one frame member 21a of the installation section 21 also serves as one frame member 22a of the fixing section 22, but they may be installed separately.

[0057] Furthermore, the frame members 21a and 21b of the lower base 23, the upper base 24, the frame member 22a of the fixing part 22, and the beam member 25 are all formed from shaped steel such as H-shaped steel or channel steel. [Industrial applicability]

[0058] This invention allows for the easy, reliable, and secure installation of rooftop structures such as base station antennas and parabolic antennas on a rooftop slab without cutting the waterproofing layer. [Explanation of Symbols]

[0059] 1. Rooftop slab, 2. Skylight, 2a. Skylight body, 3 base station antenna, 3a antenna body, 3b antenna support, 3c Base plate, 4 Storage box for accessories, 5 New foundation, 6 Fixing parts (rooftop structure fixing parts), 6a, 6b frame materials, 6c Extension section, 7 Installation section (rooftop structure installation section), 7a, 7b Base, 8. Joining bolts, 9. Non-shrink mortar or adhesive, 10 Mounting bolts, 11 Rubber flooring, 12 Existing foundation, 13 Existing support column, 14 Existing foundation, 15 Parabolic antenna, 15a Antenna section, 15b Antenna support, 15c Base plate, 15d Diagonal brace, 16 Existing building, 16a wall, 17 existing building, 17a wall, 18 Parapet or coping, 19 Lighting pole or support pole, 20. Installation frame (structure installation frame), 21 Installation section (rooftop structure installation section), 21a, 22b Frame material, 22 Fixing part (rooftop structure fixing part), 22a Frame material, 23 Lower base, 24 Upper base, 25 Beam.

Claims

1. A mounting structure for a rooftop structure installed on the rooftop slab of an existing building, comprising: a rooftop structure installation section disposed on the rooftop slab and on which the rooftop structure is installed; and a rooftop structure fixing section formed integrally with the rooftop structure installation section and fixed to an existing structure provided on the rooftop slab, wherein the rooftop structure fixing section is arranged in a ring shape around the periphery of the existing structure and is fixed to the existing structure.

2. A mounting structure for a rooftop structure installed on the rooftop slab of an existing building, comprising: a rooftop structure installation section disposed on the rooftop slab and on which the rooftop structure is installed; and a rooftop structure fixing section formed integrally with the rooftop structure installation section and fixed to an existing structure that is continuously provided in one direction on the rooftop slab, wherein the rooftop structure fixing section is arranged on both sides of the existing structure along the continuous direction of the existing structure and is fixed to the existing structure.

3. A rooftop structure mounting structure according to claim 1 or 2, characterized in that non-shrink mortar or adhesive is filled between the existing structure and the rooftop structure fixing portion.

4. A rooftop structure mounting structure according to claim 1 or 2, characterized in that the rooftop structure fixing portion and the rooftop structure installation portion are formed from structural steel.

5. The roof structure mounting structure according to claim 3, characterized in that the roof structure fixing portion and the roof structure installation portion are formed from structural steel.

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