AU2011245978B2 - Sheet body supporting frame and photovoltaic power generation device - Google Patents

Sheet body supporting frame and photovoltaic power generation device Download PDF

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Publication number
AU2011245978B2
AU2011245978B2 AU2011245978A AU2011245978A AU2011245978B2 AU 2011245978 B2 AU2011245978 B2 AU 2011245978B2 AU 2011245978 A AU2011245978 A AU 2011245978A AU 2011245978 A AU2011245978 A AU 2011245978A AU 2011245978 B2 AU2011245978 B2 AU 2011245978B2
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Australia
Prior art keywords
beams
sheet body
footing
body supporting
supporting frame
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AU2011245978A
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AU2011245978A1 (en
Inventor
Ryoichi Kanno
Yoshimichi Kawai
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Nippon Steel Corp
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Nippon Steel Corp
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Assigned to NIPPON STEEL CORPORATION reassignment NIPPON STEEL CORPORATION Request to Amend Deed and Register Assignors: NIPPON STEEL & SUMITOMO METAL CORPORATION
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/10Supporting structures directly fixed to the ground
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • F24S25/13Profile arrangements, e.g. trusses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/30Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/47Mountings or tracking
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

Disclosed is a sheet-like body support mount which is installed on a mounting surface in a state where a sheet-like body is supported. The sheet-like body support mount is provided with a plurality of footing beams which are disposed side by side on the mounting surface at intervals from one another; first support posts which are disposed vertically at first longitudinal ends of the footing beams, and second support posts which are disposed vertically at second longitudinal ends of the footing beams; first upper beams which are mounted between the upper ends of the first support posts and the upper ends of the second support posts; and a plurality of second upper beams which are mounted between the first upper beams. The sheet-like body is supported on the first upper beams and the second upper beams or on the second upper beams.

Description

I DESCRIPTION Title of Invention SHEET BODY SUPPORTING FRAME AND PHOTOVOLTAIC POWER 5 GENERATION DEVICE Technical Field [0001] The present invention relates to a sheet body supporting frame and a 10 photovoltaic power generation device. Priority is claimed on Japanese Patent Application No. 2010-104987, filed April 30, 2010, the content of which is incorporated herein by reference. Background Art 15 [0002] Conventionally, as a frame structure that supports a sheet body such as a solar cell panel (photovoltaic power generation panel) having a predetermined function, a structure is disclosed which includes a plurality of installation beams for installing the panel, an installation frame having a rectangular shape in a plan view that supports the 20 installation beams, pillars that are fixed at four corners of the installation frame, and a bottom plate member for fixing the leg of the pillar to a concrete foundation (for example, refer to Patent Document 1). In the frame disclosed in Patent Document 1, the installation frame is configured so as to include a longitudinal square steel pipe that is a beam member in the front-back 25 direction and a horizontal channel steel pipe that is a beam member in the crosswise 2 direction. In addition, the longitudinal square steel pipe and the horizontal channel steel pipe are joined to each other by bolts through a fixing member, and both ends of the installation beam are fixed to the longitudinal square steel pipes of the left and right through a fixing member. In addition, the upper end portion of the pillar is joined to the 5 longitudinal square steel pipe by bolts through a supporting plate, and the bottom plate member fixed to the lower end portion of the pillar is fixed to a concrete foundation through anchor bolts or the like. Patent Document 10 [0003] [Patent Document 1] Japanese Unexamined Patent Application, First Publication No. 2000-101123 [0004] 15 However, in the conventional frame disclosed in Patent Document 1, since each member such as the installation frame, installation beam, pillar, and the like is joined to each other through a joining member such as the fixing member or the supporting plate, the number of parts increases and costs are increased, and the handling or the assembling labor for each member is also increased. Thereby, there is a problem in that construction 20 efficiency of the assembling work may be decreased. In addition, in the conventional frame, since the bottom plate member of the lower end portion of the pillar is fixed to the concrete foundation through anchor bolts or the like, construction labor and a curing period for constructing the concrete foundation are required, and the construction period is prolonged. Moreover, since the concrete foundation is constructed in the underground or 25 the like, the environment such as the surrounding soil or underground water may be [102054361:wxb 3 affected by ground excavation or the like. In addition, the frame that supports the sheet body is required to resist a blowing force that acts on the sheet body due to a wind load, and conventionally, the structure is configured so as to resist the blowing force by the weight of the concrete foundation in addition to weight of the frame itself. According to 5 this configuration, the size of the concrete foundation is increased, and there is a problem in that the construction labor and the costs are increased. [0005] Object of the Invention It is an object of the present invention to substantially address the foregoing disadvantages 10 and/or problems. Summary of the Invention [0006] The present invention includes the following aspects: 15 (1) A sheet body supporting frame which is provided on a ground surface while supporting a sheet body so as to be inclined with respect to the ground surface, comprising: a plurality of footing beams which are provided parallelly on the ground surface with intervals therebetween as an installation beam, and are provided along an inclination direction of the sheet body so as to be a counterweight against a wind load; first pillars 20 which stand on one side in a longitudinal direction of the footing beams and second pillars which stand on the other side thereof, first upper beams which are installed between an upper end of the first pillars and an upper end of the second pillars; and a plurality of second upper beams which are installed between the first upper beams, wherein the sheet body is supported on the first upper beams and the second upper beams, or on the second 25 upper beams, in a case of a planar view from above, when a length of the first upper beam is defined as a length LI and a length of the footing beam is defined as a length L2, the length L2 is longer than the length LI, when: a side where the sheet body faces is defined as a front side; a length from a front end of the first upper beam to a front end of the footing beam is defined as a front portion length L3; and a length from a rear end of the [102054361:wxb 4 first upper beam to a rear end of the footing beam is defined as a rear portion length L4, the front portion length L3 is 0.2 to 0.7 times compared with the length LI and the rear portion length L4 is 0.3 to 0.9 times compared with the length Li, the first pillar is joined to a portion of the footing beam which is located backward from the front end of the footing 5 beam, the second pillar is joined to a portion of the footing beam which is located forward from the rear end of the footing beam, and each of the footing beams is an installation beam which connects other sheet body supporting frames which are installed so as to be adjacent to at least one of one side and the other side in the longitudinal direction of the footing beams. 10 [0007] (2) In the sheet body supporting frame according to (1), it is preferable that each of the footing beams includes: a pair of section members; and first fixtures which fasten and fix between the pair of section members in a state where a base end portion of the first 15 pillars and a base end portion of the second pillars are inserted between the pair of section members. [0008] (3) In the sheet body supporting frame according to (1), it is preferable that, when each of the first upper beams is viewed from a cross-section perpendicular to a longitudinal 20 direction thereof, each of the first upper beams includes: a pair of side wall portions which are opposite to each other; an upper wall portion which connects upper ends of the pair of side wall portions; flange portions which are formed in directions away from each other from each of lower ends of the side wall portions; and second fixtures which fasten and fix between the side wall portions in a state where the upper end of the first pillars and the 25 upper end of the second pillars are inserted between the side wall portions. [0009] (4) In the sheet body supporting frame according to (3), it is preferable that, when [102054361:wxb 5 each of the second upper beams is viewed from a cross-section perpendicular to a longitudinal direction thereof, each of the second upper beams includes: a fixation wall portion which is fixed to the first upper beams; and an upper flange portion and a lower flange portion which extend in directions opposite to each other from an upper end and a 5 lower end of the fixation wall portion respectively, and that the upper flange portion and the upper wall portion of the first upper beams are even with each other in a state where the lower flange portion comes in contact with the flange portions of the first upper beams. [0010] (5) In the sheet body supporting frame according to (3), it is preferable that 10 connection portions, which are formed by cutting and raising a portion of the side wall portions, are formed on each of the side wall portions, and the fixation wall portion of the second upper beams is fixed to each of the connection portions. [0011] [0012] 15 (6) In the sheet body supporting frame according to (1), it is preferable that the sheet body supporting frame further includes first inclined members which are installed between each of the footing beams and each of the first upper beams. [0013] (7) In the sheet body supporting frame according to (6), it is preferable that the 20 sheet body supporting frame further includes second inclined members which are installed between a lower end of the first inclined members and the second upper beams. [0014] (8) A sheet body supporting frame which is provided on a ground surface while a supporting sheet body so as to be inclined with respect to the ground surface, comprising: a 25 plurality of footing beams which are provided parallelly on the ground surface with intervals therebetween, and are provided along an inclination direction of the sheet body so [102054361:wxb 6 as to be a counterweight against a wind load; pillars which stand on one side in a longitudinal direction of the footing beams; first upper beams which are installed between an upper end of the pillars and each of the footing beams; and a plurality of second upper beams which are installed between the first upper beams, wherein the sheet body is 5 supported on the first upper beams and the second upper beams, or on the second upper beams, each of the footing beams is an installation beam which is disposed on an installation surface, the first upper beam is joined to a portion of the footing beam which is located backward from a front end of the footing beam, the pillar is joined to a portion of the footing beam which is located forward from a rear end of the footing beam, and each of 10 the footing beams is an installation beam which connects other sheet body supporting frames which are installed so as to be adjacent to at least one of one side and the other side in the longitudinal direction of the footing beams. [0015] (9) In the sheet body supporting frame according to (8), it is preferable that each of 15 the footing beams includes: a pair of section members; and third fixtures which fasten and fix between the pair of section members in a state where a base end portion of the pillars and an end portion of the first upper beams are inserted between the pair of section members. [0016] 20 (10) In the sheet body supporting frame according to (9), it is preferable that both the pillars and the first upper beams are configured of a structural steel which has a closed cross-section when viewed from a cross-section perpendicular to a longitudinal direction thereof, and a tip of the third fixtures is held within the closed cross-section. [0017] 25 [0018] (11) In the sheet body supporting frame according to (10), it is preferable that the sheet body supporting frame further includes first inclined members which are installed between each of the footing beams and each of the first upper beams. [102054361:wxb 7 [0019] (12) In the sheet body supporting frame according to (11), it is preferable that the sheet body supporting frame further includes second inclined members which are installed between a lower end of the first inclined members and the second upper beams. 5 [0020] (13) A photovoltaic power generation device according to an aspect of the present invention includes: the sheet body supporting frame according to any one of (1) to (12); and photovoltaic power generation panel which is the sheet body supported on the sheet body supporting frame. 10 [0021] According to an embodiment of the present invention in regard to the sheet body supporting frame and the photovoltaic power generation device, since the pillars stand on the footing beam which is disposed on the installation surface, the concrete foundation is 15 not needed, the construction period can be shortened, the ground excavation is not needed, and therefore, the influences to the surrounding ground can be decreased. In addition, since it is possible to resist the blowing force acting on the sheet body by the footing beam as a counterweight, the construction labor can be reduced and the influences to the surrounding environment can be decreased certainly, compared to the case where the 20 concrete foundation resists the blowing force. [0022] According to an embodiment of the sheet body supporting frame, since the footing beams are provided parallelly on the installation surface, the concrete foundation does not need to be constructed. Thereby, since the construction labor and the curing period 25 become unnecessary, the construction period can be shortened. In addition, since the [102054361:wxb 8 concrete foundation does not need to be constructed in the underground, the influences to the environment such as the surrounding soil or underground water due to the ground excavation or the like can be minimized. In addition, in an embodiment the sheet body supporting frame, the first upper beams are installed between each of the upper ends of the 5 first pillars and each of the upper ends of the second pillars which stand on the footing beams. Moreover, the plurality of second upper beams are installed between the first upper beam of the assembled structure plane and the first upper beam of the structure plane adjacent to the assembled structure plane, while the rectangular (trapezoid) structure planes which include the footing beam, the first pillar, the second pillar, and the first upper beam 10 are sequentially assembled. Thereby, assembling work continuous in the width direction of the sheet body can be performed, and the construction efficiency can be improved. In addition, in an embodiment of the sheet body supporting frame, the first upper beams are installed between the pillar and the footing beam. Moreover, the plurality of second upper beams are installed between the first upper beam of the assembled structure plane and the 15 first upper beam of the structure plane adjacent to the assembled structure plane, while the triangular structure planes which include the footing beam, the pillar, and the first upper beam are sequentially assembled. Thereby, assembling work continuous in the width direction of the sheet body can be performed, and the construction efficiency can be improved. 20 In addition, in an embodiment of the sheet body supporting frame, since the footing beam or the like is utilized as a counterweight against the blowing force acting on the sheet body, the size of the concrete foundation does not need to be increased like conventional method. Thereby, the construction labor is reduced, and the influences to the surrounding environment can be decreased certainly. 25 [0023] [102054361:wxb 9 According to an embodiment of the sheet body supporting frame, since the footing beam is configured of the pair of section members and the base ends of the first and second pillars are interposed between the section members and are tightened by the first fixtures, the fixing work becomes easy while the fixed strength between the footing beam and the 5 first and second pillars is secured. Moreover, since a joining member or the like which joins the footing beam and the first and second pillars is not needed, the number of parts is reduced, and the assembling labor and the costs can be reduced. Similarly, according to an embodiment of the sheet body supporting frame, since the footing beam is configured of the pair of section members and the ends of the pillar and 10 the first upper beam are interposed between the section members and are tightened by the first fixtures, the fixing work becomes easy while the fixed strength between the footing beam and the first upper beam is secured. Moreover, since ajoining member or the like which joins the footing beam and the first upper beam is not needed, the number of parts is reduced, and the assembling labor and the costs can be reduced. 15 [0024] According to an embodiment of the sheet body supporting frame, since each upper end of the first pillar and the second pillar which is inserted between the side wall portions of the first upper beam is fixed and tightened by the second fixtures, the fixing work becomes easy while the fixed strength between the first pillar and the first upper beam and 20 the fixed strength between the second pillar and the first upper beam are secured. Moreover, since a joining member or the like which joins the first and second pillars and the first upper beam is not needed, the number of parts is reduced, and the assembling labor and the costs can be further reduced. [0025] 25 According to an embodiment of the sheet body supporting frame, the upper wall [102054361:wxb 10 portion of the first upper beam and the upper flange portion of the second upper beam are even with each other in the state where the lower flange portion of the second upper beam comes in contact with the flange portion of the first upper beam. Thereby, since the position of the second upper beam can be easily determined, workability of the assembling 5 work can be improved. [0026] According to an embodiment of the sheet body supporting frame, since the fixation wall portion of the second upper beam is fixed to the connection portion which is formed by cutting and raising a portion of the side wall portion of the first upper beam, the joining 10 member or the like for joining these is not needed, the number of parts is reduced, and the assembling labor and the costs can be reduced. [0027] According to an embodiment of the sheet body supporting frame, even when a strong blowing force or a weak blowing force acts on each of the sheet body supporting 15 frames and overturning moment acts on each of the sheet body supporting frames, lifting of the sheet body supporting frame can be prevented by bending stiffness of the footing beam which is the installation beam. That is, since whole of the plurality of sheet body supporting frames resists the lifting, the counterweight of whole of the plurality of sheet body supporting frames can be effectively used. 20 In addition, when the counterweight is insufficient, the resistance force against the lifting can be increased by adding a weight such as pre-cast concrete, concrete block, or water tank to the footing beam. Moreover, when the counterweight is insufficient, simple anchors are penetrated to the installation surface (for example, the foundation), the simple anchors are connected to the footing beam, and therefore, the resistance force against the 25 lifting can be further increased. [102054361:wxb 11 [0028] According to an embodiment of the sheet body supporting frame, since the inclined member (first inclined member) is provided in the structure plane having a rectangular shape (trapezoid shape), for example, which includes the footing beam, the first pillar, the 5 second pillar, and the first upper beam, the stability of the structure plane can be increased. Similarly, according to the sheet body supporting frame described in (13), since the inclined member (first inclined member) is provided in the structure plane having a triangular shape, for example, which includes the footing beam, the pillar, and the first upper beam, the stability of the structure plane can be increased. 10 Moreover, according to an embodiment of the sheet body supporting frame, temporary supporting members or the like can be omitted or be reduced at the time of the construction, and the construction labor and the costs can be further reduced. [0029] According to an embodiment of the sheet body supporting frame, the second 15 inclined member is installed between the lower end portion of the first inclined member and the second upper beam, and therefore, since collapse in the width direction in which the structure planes are adjacent to each other can be prevented, the stability of the sheet body supporting frame can be increased. Moreover, the temporary supporting members or the like can be further reduced at the time of the construction. 20 [0030] According to an embodiment of the sheet body supporting frame, when drill screws, one-sided rivets, or the like as the third fixtures are used for the fixation, in a case where the tip of the third fixture is deformed or worn away, the pillar and the first upper beam which have the closed cross-section such as the square steel pipe are used, and the tip 25 of the fixture is positioned in the closed cross-section. Thereby, since the tip of the third [102054361:wxb 12 fixture is protected, the progression of rust and corrosion of the tip of the drill screw can be suppressed. [0031] According to an embodiment of the photovoltaic power generation device, as 5 described above, since the assembling labor of the sheet body supporting frame can be reduced, cost reduction of the photovoltaic power generation device can be achieved, and the influences to the surrounding ground environment can be decreased. Brief Description of Drawings 10 [0032] FIG. 1 is a side view showing a photovoltaic power generation device according to a first embodiment of the present invention. FIG. 2 is a side view of the photovoltaic power generation device when viewed from the rear surface side. 15 FIG. 3A is a side view and a cross-sectional view showing a portion of a supporting frame of the photovoltaic power generation device. FIG. 3B is a side view and a cross-sectional view showing a portion of the supporting frame of the photovoltaic power generation device. [102054361:wxb 13 FIG. 4 is a side view showing a photovoltaic power generation device according to a second embodiment of the present invention. FIG. 5 is a cross-sectional view of the photovoltaic power generation device when viewed from the rear surface side. 5 FIG. 6 is a side view showing a portion of a photovoltaic power generation device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view of a portion of the photovoltaic power generation device when viewed from the front surface side. FIG. 8 is a side view showing a photovoltaic power generation device according 10 to a fourth embodiment of the present invention. FIG. 9 is a side view of the photovoltaic power generation device when viewed from the rear surface side. FIG. 10 is a side view showing a portion of a supporting frame of the photovoltaic power generation device. 15 FIG. II is a side view showing a modification of the photovoltaic power generation device. FIG. 12 is a side view showing another modification of the photovoltaic power generation device. 20 Description of Embodiments [0033] Hereinafter, each embodiment of the present invention will be described with reference to the drawings. Moreover, in the second embodiment or later, the same components and the 25 components having the same functions as those of the following first embodiment are 14 denoted by the same reference signs as those of the first embodiment, and the descriptions thereof are omitted or simplified. In the descriptions below, a width direction is a depth direction to the paper surface in FIG. I and is a crosswise direction of the paper surface in FIG. 2. In addition, 5 a front-back direction is a longitudinal direction, is the crosswise direction of the paper surface in FIG. 1, and is the depth direction to the paper surface in FIG. 2. [0034] [First Embodiment] In FIGS. I and 2, a photovoltaic power generation device 1 of this embodiment 10 is configured so as to include a sheet body supporting frame 2 that is provided on a ground surface (installation surface) G which is an installation surface and a plurality of photovoltaic power generation panels P which are sheet bodies supported on the upper side of the sheet body supporting frame 2. In addition, in this embodiment, the installation surface is a flat surface. 15 The photovoltaic power generation device I is provided so as to easily receive sunlight from the front upper part which is the left side of the paper surface in FIG. 1, that is, the side where the photovoltaic power generation panels P face, which is the front side (south in the northern hemisphere), and the photovoltaic power generation panels P are provided so as to be inclined from the right and upper part of the paper surface in FIG. 1 20 toward the left and lower part of the paper surface. Moreover, the photovoltaic power generation device I is configured so as to have an expansion that is continuous in the width direction intersecting with the front-back direction (longitudinal direction). [0035] The sheet body supporting frame 2 includes a plurality of pairs of footing beams 25 3, a plurality of front side pillars 4 which are first pillars, a plurality of rear side pillar 5 15 which are second pillars, rafters 6 which are first upper beams, and purlins 7 which are a second upper beams. The pairs of footing beams 3 are provided parallelly on the ground surface G with intervals therebetween and are disposed along the front-back direction. A base end 5 portion 4a of the front side pillar 4 stands on so as to be fixed to the front end (one side) 3a side (the left side of the paper surface in FIG. 1) in the longitudinal direction in each of the pairs of footing beams 3. A base end portion Sa of the rear side pillar 5 stands on so as to be fixed to the rear end (the other side) 3b side (the right side of the paper surface in FIG. 1) in the longitudinal direction in each of the pairs of footing beams 3. The rafter 6 10 is installed between the upper end of the front side pillar 4 and the upper end of the rear side pillar 5. In addition, structure planes K that are formed in a trapezoidal shape by the footing beams 3, the front side pillars 4, the rear side pillars 5, and the rafters 6 are provided parallelly in the width direction with a predetermined interval therebetween. 15 Moreover, the purlin 7 is installed between the rafters 6 of the structure planes K adjacent to each other in the width direction, and the photovoltaic power panel P is fixed to the upper sides of the rafter 6 and the purlin 7. [0036] When a plurality of the sheet body supporting frames 2 are provided, it is 20 preferable that the footing beam 3 be an installation beam that connects the front and rear of the sheet body supporting frames 2. [0037] In the case of a planar view from above, when length of the rafter 6 is LI and length of the footing beam 3 is L2, it is preferable that the length L2 of the footing beam 25 3 be longer than the length LI of the rafter 6. Moreover, when a front portion length 16 from a front end 6a of the rafter 6 to a front end 3c of the footing beam 3 is L3 and a rear portion length from a rear end 6b of the rafter 6 to a rear end 3d of the footing beam 3 is L4, it is preferable that the front portion length L3 be 0.2 to 0.7 times compared with the length LI of the rafter 6 and the rear portion length L4 be 0.3 to 0.9 times compared with 5 the length LI of the rafter 6. The front portion length L3 is a length that needs to resist wind load, and the rear portion length L4 is a length that needs to be a counterweight against the wind load. In addition, as shown in FIG. 2, the footing beam 3 includes angle steels 31 which are a pair of section members. Flange portions 311 of the pair of angle steels 31 10 are disposed on the ground surface G and webs 312 are provided so as to be opposite to each other. In addition, the base end portion 4a of the front side pillar 4 and the base end portion 5a of the rear side pillar 5 are inserted between the webs 312 of the pair of angle steels 31, and the footing beam 3, the base end portion 4a of the front side pillar 4, and the base end portion 5a of the rear side pillar 5 are joined respectively by two 15 one-sided bolts 32 which are a first fixture. That is, the one-sided bolts 32 penetrate the web 312 of the angle steel 31 at one side (the left side of the paper surface in FIG. 2), penetrate the based end portion 4a of the front side pillar 4 and the base end portion 5a of the rear side pillar 5 respectively, and are screwed to the web 312 of the angle steel 31 at the other side (the right side in FIG. 2). These are tightened by one-sided bolts 32, and 20 therefore, the footing beam 3 and the front side pillar 4, in addition the footing beam 3 and the rear side pillar 5 are joined to each other. [0038] For example, the front side pillar 4 and the rear side pillar 5 are configured of a square steel pipe. The rear side pillar 5 is longer than the front side pillar 4. In 25 addition, in the front side pillar 4 and the rear side pillar 5, insertion holes through which 17 the one-sided bolts 32 are inserted are formed, and insertion holes through which one-side bolt 65 described below are inserted are formed. [0039] The rafter 6 is formed by bending a lightweight steel sheet, and the 5 cross-sectional shape of the rafter 6 is a roughly hat shape when viewed from a cross-section perpendicular to the longitudinal direction of the rafter 6. Specifically, the rafter 6 includes a pair of side wall portions 61 opposite to each other, an upper wall portion 62 that connects upper ends of the pair of side wall portions 61, and flange portions 63 that protrude to the outside from the lower end of each side wall portions 61 10 respectively. Moreover, the upper end of the front side pillar 4 and the upper end of the rear side pillar 5 are inserted between the pair of side wall portions 61 of the rafter 6. The rafter 6 and the front side pillar 4, in addition the rafter 6 and the upper end of the rear side pillar 5 are joined to each other by the one-side bolt 65 which is a second fixture. That is, the one-side bolt 65 penetrates the side wall portion 61 at one side, penetrates the 15 upper end of the front side pillar 4 and the upper end of the rear side pillar 5 respectively, and is screwed to the side wall portion 61 at the other side. These are tightened by the one-side bolt 65, and therefore, the rafter 6, the front side pillar 4, and the rear side pillar 5 of the rafter 6 are joined respectively. [0040] 20 Moreover, as shown in FIGS. 3A and 3B, connection portions 64, which is formed by cutting and raising a portion of the side wall portion 61, are provided in the rafter 6, and the purlin 7 is joined to the rafter 6 through the connection portion 64. That is, in the connection portion 64, three sides in the shape of a rectangle in the side wall portion 61 are cut, the remaining one side is bent, and thereby, the connection 25 portion 64 is formed. In the rafter 6, a cutting of three sides of the connecting portion 18 64 and a drilling of the bolt holes 641 are performed at a factory, the remaining one side 642 is bent after transporting to a work site, and the connection portion 64 is formed. [0041] The purlin 7 is formed by bending a lightweight steel sheet, and the 5 cross-sectional shape of the purlin 7 is formed in a roughly Z shape when viewed from a cross-section perpendicular to the longitudinal direction of the purlin 7. Specifically, as shown in FIG. 3B, the purlin 7 includes a fixation wall portion 71 that is arranged from the flange portion 63 toward the upper wall portion 62 side and is fixed to the connection portion 64 of the rafter 6, and an upper flange portion 72 and a lower flange portion 73 10 that protrude to the directions opposite to each other from each of the upper end and lower end of the fixation wall portion 71. The upper flange portion 72 protrudes to the rear side in the longitudinal direction, and the lower flange portion 73 protrudes to the front side in the longitudinal direction. In addition, in a state where the lower flange portion 73 comes in contact with the flange portion 63 from the upper part of the rafter 6, 15 the upper flange portion 72 and the upper wall portion 62 of the rafter 6 are even with each other. Thereby, the locating of the fixation wall portion 71 is conducted in the state of contacting the connection portion 64, bolts 75 that penetrate the fixation wall portion 71 are screwed to bolt holes 641, and therefore, the purlin 7 is connected to the rafter 6. 20 [0042] According to the above-described this embodiment, since the footing beams 3 that is disposed on the ground surface G are included, it is not necessary to construct the concrete foundation in the underground or on the ground, and the construction period can be shortened. Moreover, since the ground surface G does not need to be excavated, the 25 influences to the surrounding ground environment can be decreased. In addition, 19 against the blowing force of the wind load that acts on the photovoltaic power generation panels P, the size of the angle steel 3 1 of the footing beam 3 is appropriately selected in order to be used as the counterweight, and therefore, it is possible to resist the blowing force. As a result, it is not needed to resist the blowing force by the weight of the 5 concrete foundation, so that this embodiment can relatively easily work through the wind load. Moreover, since the footing beam 3 is configured of the pair of angle steels 31 and the base end portion 4a of the front side pillar 4 and the base end portion 5a of the rear side pillar 5 are interposed between the webs 312 and fixed by the one-sided bolts 32, the fixing work becomes easy while securing the fixed strength between the footing beam 10 3 and the front side pillar 4, in addition the fixed strength between the footing beam 3 and the rear side pillar 5. [0043] Moreover, since the cross-sectional shape of the rafter 6 is formed in the roughly hat shape, and the upper end of the front side pillar 4 and the upper end of the rear side 15 pillar 5 which are inserted between the side wall portions 61 are fixed by the one-side bolt 65, the fixing work becomes easy while improving the fixed strength between the front side pillar 4 and the rafter 6, in addition the fixed strength between the rear side pillar 5 and the rafter 6. Moreover, since the locating can be conducted in the state where the purlin 7 contacts to the flange portion 63 of the rafter 6, workability of the 20 assembling work can be improved. Moreover, the side wall portion 61 of the rafter 6 is cut and raised, the connection portion 64 is formed, and the fixation wall portion 71 of the purlin 7 is fixed to the connection portion 64. Thereby, the joining member or the like that joins the rafter 6 and the purlin 7 is not required, the number of the parts can be reduced, and the assembling labor and the costs can be further reduced. Moreover, one 25 side 642 is bent and the connection portion 64 is formed after the rafter 6 is transported to 20 the work site. Thereby, since the connection portion 64 does not protrude during the transportation of the rafter 6, transportation efficiency can be enhanced. Moreover, since the footing beam 3 is disposed not along the width direction but along the longitudinal direction (front-back direction), when the blowing force of the 5 wind load acts on the photovoltaic power generation panels P, it is possible to resist sufficiently the blowing force of the wind load. [0044] [Second Embodiment] Next, a photovoltaic power generation device I A according to a second 10 embodiment of the present invention will be described with reference to FIGS. 4 and 5. Compared to the sheet body supporting frame 2 of the first embodiment, the photovoltaic power generation device IA of this embodiment is different in that a sheet body supporting frame 2A is configured so as to include a first inclined member 8 and a second inclined member 9, and other configurations are approximately similar to those of 15 the first embodiment. Hereinafter, the differences will be described in detail. [0045] As shown in FIG. 4, two first inclined members 8 are installed between the footing beam 3 and the rafter 6 in single structure plane K, and the first inclined member 8 is formed by the square steel pipe similar to the front side pillar 4 and the rear side 20 pillar 5. In two, the lower end portion of the first inclined member 8 at the rear side (the right side of the paper surface in FIG. 4) is joined to the footing beam 3 by one-side bolt 81 at the position close to the base end portion of the rear side pillar 5, and the upper end of the first inclined member 8 is joined to the rafter 6 by one-side bolt 82 at the position close to the purlin 7 at the rear side. On the other hand, the lower end portion of the 25 first inclined member 8 at the front side (the left side of the paper surface in FIG. 4) is 21 joined to an approximately intermediate position of the footing beam 3 by the one-side bolt 81, and the upper end of the first inclined member 8 is joined to the rafter 6 by the one-side bolt 82 at the position close to the front side purlin 7. Similar to the front side pillar 4 and the rear side pillar 5, the lower end portion of each first inclined member 8 is 5 inserted between the angle steels 31 of the footing beam 3 and is joined to the footing beam 3 by tightening the one-side bolt 81. In addition, similar to the front side pillar 4 and the rear side pillar 5, the upper end portion of each first inclined member 8 is inserted between the side wall portions 61 of the rafter 6 and is joined to the rafter 6 by tightening the one-side bolt 82. 10 [0046] As shown in FIG. 5, the second inclined members 9 extend from the lower end portion 8a of each first inclined member 8 toward the purlin 7 and are connected to the purlin 7, and the second inclined member 9 is configured of a flat steel sheet. In addition, the lower end portions of two second inclined members 9 are joined to the base 15 end portion of the first inclined member 8 by the one-side bolt 91 in a state of being overlapped with each other, and the upper ends of the second inclined members 9 are joined to the fixation wall portion 71 of the purlin 7 by the one-side bolt 92. According to the above-described this embodiment, since the first inclined members 8 are provided in each structure plane K, stability in the longitudinal direction 20 and width direction in the sheet body supporting frame 2A can be enhanced, and temporary supporting members can be omitted or be reduced at the time of the construction. Therefore, the construction labor and the costs can be further reduced. Moreover, since the second inclined members 9 are provided in the width direction in addition to the first inclined members 8, the stability of the photovoltaic power 25 generation device I A can be further enhanced.
22 [0047] [Third Embodiment] Next, a photovoltaic power generation device 1 B according to a third embodiment of the present invention will be described with reference to FIGS. 6 and 7. 5 Compared to the sheet body supporting frames 2 and 2A of the first and second embodiments, in the photovoltaic power generation device 1 B of this embodiment, the supporting structures of the photovoltaic power generation panels P are different, and other configurations are approximately similar to those of the first and second embodiments. Hereinafter, the differences will be described in detail. 10 [0048] As shown in FIGS. 6 and 7, in the sheet body supporting frame 2B of this embodiment, the purlin 7 which is the second upper beam is installed on the upper side of the rafter 6 which is the first upper beam. The photovoltaic power generation panels P are fixed to the purlin 7 through a gusset plate 10 which is a fixing member. The 15 lower flange portion 73 of the purlin 7 is fixed to the upper wall portion 62 of the rafter 6 by a bolt 76, and the gusset plates 10 are fixed to the fixation wall portion 71 of the purlin 7 by bolts 11 with a predetermined interval. In addition, the photovoltaic power generation panels P are fixed to the gusset plate 10 by a bolt 12 through a frame member which is not shown in FIGS. 20 [0049] According to the above-described this embodiment, since the photovoltaic power generation panels P are fixed to the purlin 7 and the photovoltaic power generation panels P are not directly fixed to the rafter 6, the interval between rafters 6 adjacent to each other, in other words, the interval between structure planes K adjacent to each other 25 becomes free, and the number of the structure plane K can be appropriately set 23 independently of the size of the photovoltaic power generation panel P. In addition, the plurality of photovoltaic power generation panels P are connected by using the gusset plates 10 and the bolts 12 and are modularized, and the module is lifted and fixed to the purlin 7. According to this configuration, construction labor can be further reduced 5 compared with the case where each of photovoltaic power generation panels P is lifted and installed. [0050] [Fourth Embodiment] Next, a photovoltaic power generation device IC according to a fourth 10 embodiment of the present invention will be described with reference to FIGS. 8 to 11. Compared to the sheet body supporting frames 2, 2A, and 2B of the first to third embodiments, a sheet body supporting frame 2C in the photovoltaic power generation device IC of this embodiment is different in that the second pillar is omitted, the first upper beam is fixed to the footing beam, the connection structure between the pillar and 15 the first upper beam, the connection structure between the first upper beam and the second upper beam, or the like is different. Other configurations are approximately similar to those of the first to third embodiments. Hereinafter, the differences will be described in detail. [0051] 20 As shown in FIGS. 8 and 9, the sheet body supporting frame 2C includes the pairs of footing beams 3A, a plurality of pillars 5A, rafters 6A which are the first upper beam, and purlins 7A which are the second upper beam. The pairs of footing beams 3A are provided parallelly on the ground surface G with the interval therebetween and are disposed along the front-back direction. 25 Moreover, the pairs of footing beams 3A are fixed to continuous footings (installation 24 surface) F, which are an installation foundation disposed on the ground surface Q by anchor bolts B. The base end portion 5b of the pillar 5A is fixed to an end portion 3c side (the right side of the paper surface in FIG. 8) in the longitudinal direction of each of the pair of footing beams 3A, and the pillar 5A stands on so as to be inclined to the front 5 side. The rafter 6A is installed between the upper end of the pillar 5A and the footing beam 3A. Structure planes KI that are formed in a triangular shape with the footing beam 3A, the pillar 5A and, the rafter 6A are provided parallelly in the width direction (the depth direction to the paper surface in FIG. 8 and the crosswise direction in FIG. 9) with a predetermined interval. In addition, in the structure planes KI adjacent to each 10 other in the width direction, a plurality of (four) purlins 7A are installed between a plurality of (two) rafters 6A, and the photovoltaic power generation panels P are fixed on the upper side of the purlins 7A. [0052] The footing beam 3A may be configured to be an installation beam that connects 15 a plurality of sheet body supporting frames 2C on the continuous footing F which is the counterweight. As shown in FIG. 9, the footing beam 3A includes channel steels 33 which are a pair of section members. The base end portion 5b of the pillar 5A and the end portion 6b of the rafter 6A are inserted between the pair of channel steels 33, and the footing beam 3A and the pillar 5A, in addition the footing beam 3A and the rafter 6A are 20 joined respectively by a plurality of drill screws 34 which are a third fixture. In addition, each of the pillar 5A and the rafter 6A is configured of the square steel pipe which has the closed cross-section, and the tips of the drill screws 34 are disposed (held) within the closed cross-section. Moreover, the upper end of the pillar 5A and the rafter 6A are joined to each other by a plurality of drill screws 52 through bracket 51 which is 25 composed of a steel sheet. The tips of the drill screws 52 are also disposed (held) 25 within the closed cross-sections of the pillar 5A and the rafter 6A. In addition, as shown in FIG. 10, the purlin 7A is configured of the square steel pipe and is disposed on the upper surface of the rafter 6A, and the rafter 6A and the purlin 7A are joined to each other by a plurality of drill screws 68 through a bracket 67 5 which is composed of an angle bar. Moreover, as shown in FIG. 9, the photovoltaic power generation panels P are fixed to the purlin 7A through a plurality of brackets 76. In addition, in the sheet body supporting frame 2C, inclined members 13 that connect the middle portion of the pillar 5A and the purlin 7A are provided, and plane braces 14 throughout structure planes KI are provided between the uppermost purlin 7A and the 10 lowermost purlin 7A. [0053] Moreover, the footing beam 3A is not limited to an installation beam that is disposed on the continuous footing F, and as show in FIG. 11, the footing beam 3A is connected to simple anchors 15 that penetrate the foundation and may be disposed on a 15 foundation slab (installation surface) S that is the counterweight provided on the ground surface G. Moreover, the footing beam 3A may be fixed to the foundation slab S by anchor bolts B. Here, the simple anchor 15 has a simple configuration such as a spiral pile in which a flat steel sheet is spirally formed, and the simple anchor 15 is not a supporting pile and may be sufficient if it is possible to suppress the movement in the 20 horizontal direction of the sheet body supporting frame 2C or to prevent the lifting thereof due to the wind load. The simple anchors 15 and the footing beam 3A are joined to each other by drill screws 35. In FIG. 11, the uppermost purlin 7B and the lowermost purlins 7B are configured respectively of one lip channel steel, and the two purlins 7B in the intermediate portion are configured respectively of a pair of lip channel 25 steels which are back to back to each other. The purlins 7B are fixed respectively to the 26 rafter 6A through brackets 69. In addition, similar to the second embodiment, this embodiment may be also configured so as to include at least the first inclined member 8 in the first inclined member 8 and the second inclined member 9. 5 [0054] Moreover, the present invention is not limited to the embodiments and includes other configurations or the like which is to achieve the object of the present invention, and modifications or the like described below are also included in the present invention. For example, in the above-described embodiments, although the sheet body 10 supporting frames 2, 2A, 2B, and 2C are used as the frame for supporting the photovoltaic power generation panel P in the photovoltaic power generation devices 1, 1 A, 1 B, and 1 C, the sheet body supporting frame of the present invention is not limited to the supporting for the photovoltaic power generation panel P and may be used for supporting an appropriate sheet body. Here, for example, as the sheet body, sunlight 15 warm-water panels, sunlight reflective panels, or the like may be applied. In addition, the sheet body is not limited to those that use sunlight, and may be, for example, panels for weather observation, antennas, billboards for commercial use, or the like. The structure, function, and use of the sheet body are not particularly limited. [0055] 20 Moreover, in the first to third embodiments, the pair of first pillar 4 and second pillar 5 stands on the pair of footing beams 3 in the longitudinal direction, the rafter 6 is installed between the first pillar 4 and the second pillar 5, and therefore, each structure plane K is configured. However, the configuration of the sheet body supporting frame is not limited to these embodiments. That is, as shown in FIG. 12, when the 25 photovoltaic power generation device ID includes a plurality of sheet body supporting 27 frames 2, a single footing beam 3 may be an installation beam that connects the plurality of sheet body supporting frames 2. In this configuration, the footing beams 3 are extended, and a plurality of groups of pillar 4, pillar 5, and rafter 6 are supported to the footing beam 3. In this case, in the footing beam 3, the interval of the sheet body 5 supporting frames 2 that are disposed plurally in the front-back direction, that is, a distance L5 between the rear end 6b of the rafter 6 of the sheet body supporting frame 2 disposed forward and the front end 6a of the rafter 6 of the sheet body supporting frame 2 disposed rearward is preferably 0.3 to 2.0 times compared with the length Li. This is determined by considering a length in which a shadow of the front sheet body supporting 10 frame 2 is not overlapped to the rear sheet body supporting frame 2, and is changed with the latitude for the installation. Moreover, the footing beam 3 is not limited to one that is configured of a single consecutive member, and may be configured by connecting a plurality of members. In addition, each footing beam may be integrated with each footing beam of other sheet 15 body supporting frames that are fixed so as to be adjacent to at least one of the one side and the other side in the longitudinal direction of the footing beam. Specifically, the plurality of sheet body supporting frames 2C such as the fourth embodiment are provided parallelly in the longitudinal direction of the footing beam 3A, and the footing beams 3A (other footing beams) of the plurality of sheet body supporting frames 2C may be 20 continuously formed to be integral with each other. Moreover, in the first to third embodiments, the pillar composed of a square steel pipe, the rafter 6 having the roughly hat shape in the cross-section, and the purlin 7 having the roughly Z shape in the cross-section are used. However, the cross-sectional shapes of the pillar, the first upper beam, and the second upper beam are not particularly 25 limited and may use a member that has an arbitrary cross-sectional shape. In addition, 28 the joining measures between each member are not limited to the one-side bolt. Appropriate joining measures such as general bolts, drill screws, welding, or the like may be used. [0056] 5 Additionally, the best configuration, the method, and the like for embodying the present invention are disclosed in the above description. However, the present invention is not limited thereto. That is, mainly, the specific embodiments of the present invention are particularly shown in FIGS and described. However, various modifications may be applied to the shape, the material, the number, and other detailed 10 configuration in the above-described embodiments by a person skilled in the art without departing from the scope of the technical ideas and the object of the present invention. Accordingly, since the descriptions that limit the shape, the material, and the like disclosed above are illustratively described so as to facilitate the understanding of the present invention, the present invention is not limited to the above-descriptions. 15 Reference Signs List [0057] 1, 1A, IB, and IC: photovoltaic power generation device 2, 2A, 2B, and 2C: sheet body supporting frame 20 3 and 3A: footing beam 4: front side pillar (first pillar) 5: rear side pillar (second pillar) 5A: pillar 6 and 6A: rafter (first upper beam) 25 7, 7A, and 7B: purlin (second upper beam) 29 8: first inclined member 9: second inclined member 31: angle steel (section member) 32: one-side bolt (first fixture) 5 65: one-side bolt (second fixture) 34: drill screw (third fixture) 61: side wall portion 62: upper wall portion 63: flange portion 10 64: connection portion 71: fixation wall portion 72: upper flange portion 73: lower flange portion G: ground surface (installation surface) 15 P: photovoltaic power generation panel (sheet body)

Claims (13)

1. A sheet body supporting frame which is provided on a ground surface while supporting a sheet body so as to be inclined with respect to the ground surface, comprising: a plurality of footing beams which are provided parallelly on the ground surface with intervals therebetween as an installation beam, and are provided along an inclination direction of the sheet body so as to be a counterweight against a wind load; first pillars which stand on one side in a longitudinal direction of the footing beams and second pillars which stand on the other side thereof, first upper beams which are installed between an upper end of the first pillars and an upper end of the second pillars; and a plurality of second upper beams which are installed between the first upper beams, wherein the sheet body is supported on the first upper beams and the second upper beams, or on the second upper beams, in a case of a planar view from above, when a length of the first upper beam is defined as a length LI and a length of the footing beam is defined as a length L2, the length L2 is longer than the length LI, when: a side where the sheet body faces is defined as a front side; a length from a front end of the first upper beam to a front end of the footing beam is defined as a front portion length L3; and a length from a rear end of the first upper beam to a rear end of the footing beam is defined as a rear portion length L4, the front portion length L3 is 0.2 to 0.7 times compared with the length LI and the rear portion length L4 is 0.3 to 0.9 times compared with the length LI, the first pillar is joined to a portion of the footing beam which is located backward from the front end of the footing beam, the second pillar is joined to a portion of the footing beam which is located forward from the rear end of the footing beam, and each of the footing beams is an installation beam which connects other sheet body supporting frames which are installed so as to be adjacent to at least one of one side and the other side in the longitudinal direction of the footing beams.
2. The sheet body supporting frame according to claim 1, wherein each of the footing beams includes: a pair of section members; and [102057011:wxb 31 first fixtures which fasten and fix between the pair of section members in a state where a base end portion of the first pillars and a base end portion of the second pillars are inserted between the pair of section members.
3. The sheet body supporting frame according to claim 1, wherein, when each of the first upper beams is viewed from a cross-section perpendicular to a longitudinal direction thereof, each of the first upper beams includes: a pair of side wall portions which are opposite to each other; an upper wall portion which connects upper ends of the pair of side wall portions; flange portions which are formed in directions away from each other from each of lower ends of the side wall portions; and second fixtures which fasten and fix between the side wall portions in a state where the upper end of the first pillars and the upper end of the second pillars are inserted between the side wall portions.
4. The sheet body supporting frame according to claim 3, wherein, when each of the second upper beams is viewed from a cross-section perpendicular to a longitudinal direction thereof, each of the second upper beams includes: a fixation wall portion which is fixed to the first upper beams; and an upper flange portion and a lower flange portion which extend in directions opposite to each other from an upper end and a lower end of the fixation wall portion respectively, and wherein the upper flange portion and the upper wall portion of the first upper beams are even with each other in a state where the lower flange portion comes in contact with the flange portions of the first upper beams.
5. The sheet body supporting frame according to claim 3, wherein connection portions which are formed by cutting and raising a portion of the side wall portions are formed on each of the side wall portions, and a fixation wall portion of the second upper beams is fixed to each of the connection portions.
6. The sheet body supporting frame according to claim 1, further comprising: first inclined members which are installed between each of the footing beams and each of the first upper beams. [102057011:wxb 32
7. The sheet body supporting frame according to claim 6, further comprising: second inclined members which are installed between a lower end of the first inclined members and the second upper beams.
8. A sheet body supporting frame which is provided on a ground surface while a supporting sheet body so as to be inclined with respect to the ground surface, comprising: a plurality of footing beams which are provided parallelly on the ground surface with intervals therebetween, and are provided along an inclination direction of the sheet body so as to be a counterweight against a wind load; pillars which stand on one side in a longitudinal direction of the footing beams; first upper beams which are installed between an upper end of the pillars and each of the footing beams; and a plurality of second upper beams which are installed between the first upper beams, wherein the sheet body is supported on the first upper beams and the second upper beams, or on the second upper beams, each of the footing beams is an installation beam which is disposed on an installation surface, the first upper beam is joined to a portion of the footing beam which is located backward from a front end of the footing beam, the pillar is joined to a portion of the footing beam which is located forward from a rear end of the footing beam, and each of the footing beams is an installation beam which connects other sheet body supporting frames which are installed so as to be adjacent to at least one of one side and the other side in the longitudinal direction of the footing beams.
9. The sheet body supporting frame according to claim 8, wherein each of the footing beams includes: a pair of section members; and third fixtures which fasten and fix between the pair of section members in a state where a base end portion of the pillars and an end portion of the first upper beams are inserted between the pair of section members. [102057011:wxb 33
10. The sheet body supporting frame according to claim 9, wherein both the pillars and the first upper beams are configured of a structural steel which has a closed cross-section when viewed from a cross-section perpendicular to a longitudinal direction thereof, and a tip of the third fixtures is held within the closed cross section.
11. The sheet body supporting frame according to claim 10, further comprising: first inclined members which are installed between each of the footing beams and each of the first upper beams.
12. The sheet body supporting frame according to claim 11, further comprising: second inclined members which are installed between a lower end of the first inclined members and the second upper beams.
13. A photovoltaic power generation device comprising: the sheet body supporting frame according to any one of claims 1 to 12; and a photovoltaic power generation panel which is the sheet body supported on the sheet body supporting frame. Nippon Steel & Sumitomo Metal Corporation Patent Attorneys for the Applicant SPRUSON & FERGUSON [102057011:wxb
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Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE INVENTION TITLE TO READ SHEET BODY SUPPORTING FRAME AND PHOTOVOLTAIC POWER GENERATION DEVICE

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Owner name: NIPPON STEEL CORPORATION

Free format text: FORMER NAME(S): NIPPON STEEL & SUMITOMO METAL CORPORATION

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