CN208415635U - The angle brace device that purlin for distributed photovoltaic roofing is reinforced - Google Patents
The angle brace device that purlin for distributed photovoltaic roofing is reinforced Download PDFInfo
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- CN208415635U CN208415635U CN201820473279.9U CN201820473279U CN208415635U CN 208415635 U CN208415635 U CN 208415635U CN 201820473279 U CN201820473279 U CN 201820473279U CN 208415635 U CN208415635 U CN 208415635U
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- purlin
- angle brace
- angle
- steel
- reinforced
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The utility model discloses a kind of angle brace device that the purlin for distributed photovoltaic roofing is reinforced and its construction methods, the support that steel roof joist including being fixed on roof is constituted and the Z-shaped or C font purlin being connected to using purlin support on steel roof joist, it is obliquely provided with angle brace respectively in the two sides of steel roof joist, the upper end of angle brace is fixedly connected with purlin, and the lower end of angle brace is fixedly connected with the lower part of steel roof joist；Length Lc of tie point of the angle brace on purlin away from support midpoint and purlin span L0Ratio between 0.1~0.2, the angle α of angle brace and purlin is at 20 ° or more.The utility model improves purlin support construction state, greatly improves load intensity, and materials save, recruitment is few and at low cost, for installing distributed photovoltaic power generation equipment roof reinforcement structure.
Description
Technical field
The utility model belongs to technical field of photovoltaic power generation, and in particular to a kind of room for installing distributed photovoltaic power generation equipment
Roof construction is reinforced.
Background technique
Roof distributed photovoltaic power generation achieved fast development in recent years.Distributed photovoltaic needs a large amount of illumination ground
Resource, and make full use of existing building roofing, not only saves land, but also is that dispersion is obtained, consumed on the spot to the utilization of solar energy, can
It saves high-voltage transmission and becomes distribution cost.
The fabricating yard of distributed photovoltaic.There are vacant lot, building roof, highway or railway in currently used fabricating yard
Other and such as other occasions of beach.In these types of fabricating yard type, building roof accounting is maximum, and has the advantage that
Electric energy as described above can be saved the investment of the facilities such as high-voltage transmission power transformation, be avoided the transmission of electric energy with local use
Loss improves utilization efficiency；Especially without occupying this limited land resource；It is easy to maintain.
It should be pointed out that existing building roofing does not all consider to install the load of photovoltaic substantially, it is however generally that, it is existing
The bearing capacity of roofing is the load for being not enough to increase installation photovoltaic equipment.As the utility model project emphasis is directed to
The industrial premises having a large capacity and a wide range and logistics construction roofing be substantially lightweight steel construction form, and to save construction cost, this
Class builds intrinsic allowable bearing very little more than needed, therefore generally requires before installing photovoltaic apparatus and add to roof structure
Gu.
The prior art is before light-steel roofing installs distributed solar energy photovoltaic, although also being reinforced to light steel roof,
There are many places not fully up to expectations for its Scheme of Strengthening.For example, conventional Roof system Scheme of Strengthening is to encrypt purlin,
Another kind is to add angle steel in purlin lower flange.The reinforcement means is to insert one between every two adjacent purlins of original light-steel roofing
Root purlin is encrypted, in this way, which roofing carrying is reinforced significantly, but it is big with material cost, and substantially needs gross area
Construction, thus the influence to production is bigger；Scene needs newly-increased purlin support, and connects with roof boarding and need to install self tapping spiral shell
Nail, installation cost greatly improve.
For example, the patent No. 201320759000.0, the patent of entitled angle brace cold working bracing means, disclose a kind of corner
Support cold working bracing means, strenthening member and fastener including surface heat zinc-plated processing, strenthening member include T-type connector,
Round steel pull rod and angle steel, in which: the T-type connector is between web above angle brace one end and steelframe crossbeam bottom wing listrium
Connection, the angle brace other end connect purlin；It is all made of in more angle braces of steelframe crossbeam two sides per between adjacent two
One round steel pull rod drawknot.
The patent be although angle brace is provided with to reinforce roofing, but its that there are following two points is clearly disadvantageous.
First, the patent will hang drawing connection, originally, angle brace and roof purline with round steel pull rod in the middle part of two adjacent angle braces
And girder steel forms truss structure, what truss structure mainly utilized is exactly the axial tension of each rod piece or to be compressed axially ability far super
In the bending resistance of rod piece, to give full play to the mechanical advantage of rod piece, the middle part of rod piece is but applied and is laterally drawn by the patent now
Power is avoiding greatly for structure design really.And in order to connect cross-tie, connecting hole also is processed at the middle part of angle brace unexpectedly, more
It is to weaken its tensile strength and bending strength.
Second, angle brace and purlin are connected with an angle, length Lc of tie point of the angle brace on purlin away from support midpoint
With purlin span L0Ratio, the angle and ratio is also not arbitrarily, has from the aspect of terms of mechanics and economic benefit
Preferable comprehensive selection range, but the patent has no to be related to this point.
Summary of the invention
The utility model technical issues that need to address are to overcome existing light-steel roofing installation distributed solar energy photovoltaic institute
Defect existing for the reinforcement technique scheme of progress provides the roof that a kind of mechanics design is reasonable, economic benefit is not only good but also saves and reinforces
Structure.
The purpose of this utility model is achieved by following technical proposals:
A kind of angle brace device that the purlin for distributed photovoltaic roofing is reinforced, the steel roof joist institute including being fixed on roof
The support of composition and the Z-shaped or C font purlin being connected to using purlin support on steel roof joist, characterized in that in steel roof joist
Two sides are obliquely provided with angle brace respectively, and the upper end of angle brace is fixedly connected with purlin, the lower end of angle brace and the lower part of steel roof joist
It is fixedly connected；Length Lc of tie point of the angle brace on purlin away from support midpoint and purlin span L0Ratio 0.1~0.2 it
Between, the horizontal sextant angle α of angle brace and purlin is at 20 ° or more.
Preferred embodiment, upper end and the purlin of angle brace are connected by screw bolts, and bolt is at least arranged 2；The lower end and room of angle brace
Face girder steel is connected by gusset plate, and the web and lower flange of gusset plate and steel roof joist connect；Angle brace and gusset plate, gusset plate with
The web of steel roof joist is bolted.
Preferred embodiment, angle brace are made of channel steel, T-steel or π fashioned iron.
Preferred embodiment, when the sectional area of angle brace is Ac, length L1, when horizontal sextant angle is α, the equivalent vertical supporting of angle brace
Rigidity are as follows:
Ke=E*Ac*sin2α/L1
That angle brace undertakes 80~120% of stress in purlin to the requirement of the value range of stiffness K e, with reach purlin respectively across
Moment reduces 20~40%, is mainly rigidity requirement, the axis compression ratio that angle brace undertakes by section of the above-mentioned requirements to angle brace
0.2 hereinafter, making Axial Compression Stability also and can satisfy the critical force request less than pressure bar stabilization.
On the computation model of continuous purline, adding angle brace and being equivalent to away from rigidity is added at support Lc is that the elastic of Ke props up
Seat.Purlin is often across elastic support is increased, to reduce support and mid span moment.The stiffness K e of elastic support have one it is best
Value range, stiffness K e is too big, then not only steel using amount is big, but also increases support moment, and it is insufficient to may cause support bending resistance；If
Stiffness K e is too small, then is promoted to purlin bearing capacity unobvious.Gauging surface, angle brace undertake 80~120% left sides of stress in purlin
The right side is suitably, correspondingly respectively can to reduce 20~40% or so across moment.
Section by above-mentioned requirements angle brace is mainly rigidity requirement, and the axle power undertaken is generally all smaller, axis compression
Than 0.2 hereinafter, Axial Compression Stability also can satisfy requirement.
The horizontal sextant angle α of preferred embodiment, angle brace and purlin is 20~60 °.
Preferred embodiment, the angle brace of steel roof joist two sides are arranged symmetrically.
A kind of construction method for the angle brace device that the purlin for distributed photovoltaic roofing is reinforced, characterized in that angle brace
Processing and assembly technology comprise the following steps:
(1), it presses design requirement, including type selecting material and is processed by size and its precision, prefabricated angle brace and gusset plate, Ge Gejia
Solid point configures symmetrical angle brace and gusset plate each one is secondary, particularly, a), according to drawing and site dimension carries out accessory blanking；
B), steel plate is processed, such as retaining wall on slope, connection hole drilling；C), support or connector assembly welding.The weldering of stiffener and main steel plate
It connects；D), connector corrects；E), preservative treatment；
(2), the erection construction platform on driving platform, lays in workpiece and tool；
(3), it crosses by design requirement on purlin and steel roof joist to determine spiro keyhole position；
(4), scene processes all bolt mounting holes；
(5), gusset plate is installed；
(6), left and right feature is distinguished, angle brace is accordingly installed.
The beneficial effects of the utility model are:
1, it selectes angle brace and undertakes 80~120% or so of stress in purlin, correspondingly purlin respectively can reduce 20 across moment
~40% or so；
2, using channel steel, T-steel or π section steel manufacture angle brace, connection is all facilitated to Z-shaped or C font purlin；
3, selecting the angle of angle brace and purlin is 20 ° to 60 °, and mechanical property is optimal and is most saved and is taken into account with material.
4, it is saved with material, model specification is optional, and materials are easy；
5, reliable performance, can application property be strong, at low cost, the service life is long.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model；
Fig. 2 is calculation of Bending Moment model schematic of the purlin of the utility model embodiment under evenly load q effect；
Fig. 3 is moment of flexure schematic diagram of the purlin of the utility model embodiment under evenly load q effect；
Fig. 4 is the structural schematic diagram that purlin section is c font；
Fig. 5 is the structural schematic diagram that purlin section is zigzag；
Fig. 6 is T-type angle brace schematic diagram；
Fig. 7 is π type angle brace schematic diagram.
In figure, steel roof joist 1；Web 11；Lower flange 12；Purlin 2；C-type purlin 22；Z-shaped purlin 24；Purlin support 25；Corner
Support 4；Gusset plate 5；T-type angle brace 6；π type angle brace 7；Bolt 8.
Specific embodiment
Elaborate with reference to the accompanying drawing to the embodiments of the present invention: the present embodiment is with the utility model technology
Implemented under premised on scheme, the detailed implementation method and specific operation process are given, but the protection of the utility model
Range is not limited to the following embodiments.
Embodiment 1: as shown in Fig. 1, a kind of angle brace device that the purlin for distributed photovoltaic roofing is reinforced, including it is solid
It is scheduled on the support constituted of steel roof joist 1 on roof and the Z-shaped purlin 24 or the C that are connected on steel roof joist 1 using purlin support 25
Font purlin 22 tilts respectively and is symmetrically provided with angle brace 4 in the two sides of steel roof joist 1, and angle brace 4 is made of channel steel, corner
The upper end of support 4 is fixedly connected with purlin 2 using bolt 8, and bolt 8 is arranged side by side 2.Under the lower end of angle brace 4 and steel roof joist 1
Portion is fixedly connected with gusset plate 5, and gusset plate 5 is connect with the web 11 of steel roof joist 1 and lower flange 12, angle brace 4 and gusset plate 5,
Gusset plate 5 is connect by bolt 8 with the web 11 of steel roof joist 1；Tie point of the angle brace 4 on purlin 2 is away from support midpoint
Length Lc and 2 span L of purlin0Ratio between 0.1~0.2, the angle α of angle brace 4 and purlin 2 at 20 ° or more, angle α
It is preferred that planting is 30~60 °.
When the sectional area of angle brace 4 is Ac, length L1, when horizontal sextant angle is α, the equivalent vertical supporting rigidity of angle brace 4 are as follows:
Ke=E*Ac*sin2α/L1
Value range requirement to stiffness K e is that angle brace undertakes 80~120% of stress in purlin, each to reach purlin 2
Across moment reduction 20~40%, is mainly rigidity requirement by section of the above-mentioned requirements to angle brace 4, and the axis pressure that angle brace 4 undertakes is answered
Power than 0.2 hereinafter, making Axial Compression Stability also and can satisfy the critical force request less than pressure bar stabilization.
On the computation model of continuous purline 2, adding angle brace 4 and being equivalent to away from rigidity is added at support Lc is that the elastic of Ke props up
Seat.Purlin 2 is often across elastic support is increased, to reduce support and mid span moment.The stiffness K e of elastic support have one most
Good value range, stiffness K e is too big, then not only steel using amount is big, but also increases support moment, and it is insufficient to may cause support bending resistance；Such as
Fruit stiffness K e is too small, then is promoted to 2 bearing capacity of purlin unobvious.Gauging surface, angle brace 4 undertake stress in purlin 2 80~
120% or so is that suitably, correspondingly respectively can reduce 20~40% or so across moment.The Bending moment distribution of the present embodiment illustrates ginseng
See Fig. 2 and Fig. 3, figure intermediate cam shape indicates freely-supported support, and the arrow Ke that roll over indicate angle brace support more.M1, M2, M3 in Fig. 3 are indicated not
Same moment, L0Indicate purlin span.
Angle brace can select channel steel, T-steel or π section steel manufacture.
Gusset plate can also select T-steel to be made.
Fig. 4 is the schematic diagram of C font purlin 22.
Fig. 5 is the schematic diagram of Z-shaped purlin 24.
Fig. 6 is 6 schematic diagram of T-type angle brace.
Fig. 7 is 7 schematic diagram of π type angle brace.
Through calculating, the every square meter steel of the present embodiment: 0.8~2.5kg/m2；Compared with conventional scheme, every square meter is saved with steel
60%~80%；Working face and plant area accounting: 1/6；
Embodiment 2: a kind of construction method for the angle brace device that the purlin for distributed photovoltaic roofing is reinforced, specifically corner
The processing of support and assembly technology comprise the following steps:
(1), it presses design requirement, including type selecting material and is processed by size and its precision, prefabricated angle brace and gusset plate, Ge Gejia
Solid point configures symmetrical angle brace and gusset plate each one is secondary, particularly, a), according to drawing and site dimension carries out accessory blanking；
B), steel plate is processed, such as retaining wall on slope, connection hole drilling；C), support or connector assembly welding.The weldering of stiffener and main steel plate
It connects；D), connector corrects；E), preservative treatment；
(2), the erection construction platform on driving platform, lays in workpiece and tool；
(3), it crosses by design requirement on purlin and steel roof joist to determine bolt hole position；
(4), scene processes all bolt mounting holes；
(5), gusset plate is installed；
(6), left and right feature is distinguished, angle brace is accordingly installed.
The angle brace device and reinforcement means that the utility model installation is reinforced for the purlin of distributed photovoltaic roofing, having property
Can it is reliable, can strong, at low cost, the service life the is long advantage of application property.It should be understood by those skilled in the art that the utility model not by
The limitation of above-described embodiment, the description of the embodiments and the specification only illustrate the principle of the present utility model, is not departing from
Under the premise of the spirit and scope of the utility model, the utility model also has various changes and improvements, these changes and improvements are all
It falls within the scope of the claimed invention.The utility model requires protection scope is by appended claims and its waits
Effect object defines.
Claims (6)
1. a kind of angle brace device that the purlin for distributed photovoltaic roofing is reinforced, the steel roof joist institute structure including being fixed on roof
At support and the Z-shaped or C font purlin that are connected to using purlin support on steel roof joist, characterized in that the two of steel roof joist
Side is obliquely provided with angle brace respectively, and the upper end of angle brace is fixedly connected with purlin, and the lower end of angle brace and the lower part of steel roof joist are solid
Fixed connection；Length Lc of tie point of the angle brace on purlin away from support midpoint and purlin span L0Ratio 0.1~0.2 it
Between, the horizontal sextant angle α of angle brace and purlin is at 20 ° or more.
2. the angle brace device that the purlin according to claim 1 for distributed photovoltaic roofing is reinforced, characterized in that angle brace
Upper end be connected by screw bolts with purlin, bolt is at least arranged 2；The lower end of angle brace is connected with steel roof joist by gusset plate,
The web and lower flange of gusset plate and steel roof joist connect；The web of angle brace and gusset plate, gusset plate and steel roof joist passes through
It is bolted.
3. the angle brace device that the purlin according to claim 2 for distributed photovoltaic roofing is reinforced, characterized in that angle brace
It is made of channel steel, T-steel or π fashioned iron.
4. the angle brace device that the purlin according to claim 1,2 or 3 for distributed photovoltaic roofing is reinforced, feature
It is, when the sectional area of angle brace is Ac, length L1, when horizontal sextant angle is α, the equivalent vertical supporting rigidity of angle brace are as follows:
Ke=E*Ac*sin2α/L1
Value range requirement to stiffness K e is that angle brace undertakes 80~120% of stress in purlin, to reach purlin respectively across moment of flexure
Value reduces 20~40%, is mainly rigidity requirement by section of the above-mentioned requirements to angle brace, the axis compression ratio that angle brace undertakes is 0.2
Hereinafter, making Axial Compression Stability also and can satisfy the critical force request less than pressure bar stabilization.
5. the angle brace device that the purlin according to claim 4 for distributed photovoltaic roofing is reinforced, characterized in that angle brace
Horizontal sextant angle α with purlin is 20~60 °.
6. the angle brace device that the purlin according to claim 4 for distributed photovoltaic roofing is reinforced, characterized in that roofing
The angle brace of girder steel two sides is arranged symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820473279.9U CN208415635U (en) | 2018-04-04 | 2018-04-04 | The angle brace device that purlin for distributed photovoltaic roofing is reinforced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820473279.9U CN208415635U (en) | 2018-04-04 | 2018-04-04 | The angle brace device that purlin for distributed photovoltaic roofing is reinforced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208415635U true CN208415635U (en) | 2019-01-22 |
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ID=65118515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820473279.9U Active CN208415635U (en) | 2018-04-04 | 2018-04-04 | The angle brace device that purlin for distributed photovoltaic roofing is reinforced |
Country Status (1)
| Country | Link |
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| CN (1) | CN208415635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068161A (en) * | 2019-05-16 | 2019-07-30 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of heliostat support with angle brace |
-
2018
- 2018-04-04 CN CN201820473279.9U patent/CN208415635U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068161A (en) * | 2019-05-16 | 2019-07-30 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of heliostat support with angle brace |
| CN110068161B (en) * | 2019-05-16 | 2023-12-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Heliostat support with corner support |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220112 Address after: 200000 Room 403, 4th floor, building 1, 3279 Sanlu highway, Minhang District, Shanghai (5 / 5 hill, block 481, Pujiang town) Patentee after: Yanggu engineering construction (Shanghai) Co.,Ltd. Address before: 200137 room 417, building 5, No. 2577, Haixu Road, Pudong New Area, Shanghai Patentee before: YANGGU ENGINEERING TECHNOLOGY (SHANGHAI) Co.,Ltd. |