Solar-field SP300 Technical manual for photovoltaic free-fields with single pile foundations
1
1. Single pile support systems for free-fields 1.1 The single pile support system for free-fields is made from galvanized steel. The quality of the steel finish has a minimum coating of hot dip galvanization 45 microns. The purlins can be either from aluminium or galvanized steel. All of the steel accessories (bolts, nuts, etc...) are made from stainless steel A2. The system is available in 2 versions, 2 portrait & 3 landscape with angles of 25°,30°,35°. The foundation of the system can be made with steel driven piles or with concrete piles.
Typology
Double Pile 25°
Double Pile 30°
Double Pile 35°
Purlin
PV panel layout
Code
Aluminium
Portrait
SAP-25
Aluminium
Landscape
SAL-25
Galv. Steel
Portrait
SGP-25
Galv. Steel
Landscape
SGL-25
Aluminium
Portrait
SAP-30
Aluminium
Landscape
SAL-30
Galv. Steel
Portrait
SGP-30
Galv. Steel
Landscape
SGL-30
Aluminium
Portrait
SAP-35
Aluminium
Landscape
SAL-35
Galv. Steel
Portrait
SGP-35
Galv. Steel
Landscape
SGL-35
2
2. Assembly of support system
The individual parts for assembling the support system are provided with the necessary machining for easier and faster installation.
2.1 PILE FOUNDATION Pile driving should be performed by specialist, and should be according to the installation specifications and drawings. The piles should be placed with the large surface area parallel to the North-South axis.
S
Pile Foundation
Concrete Foundation
The depth of the foundation is determined by the soil conditions and may vary for reinforced concrete.
Depth of foundation
Depth of foundation
3
2.2 INSTALLING THE GIRDER CONNECTOR The girder connector is fastened inside the web of the pile with stainless steel fasteners M10x25 on each side and safety nuts M10.
Girder Connector
Safety nut M10 Pile Fastener Μ 10x25
2.3 INSTALLING THE GIRDER The girder beam is fastened over the top of the girder connector with two fasteners M10x25 and safety nuts M10.
Girder Beam
Girder Connector
Safety nuts M10 Pile
Fastener Μ 10x25
4
2.4 INSTALLING DIAGONAL BRACING The diagonal bracing is used to connect the pile to the girder beam. It is fastened with M12x30 bolts and M12 safety nuts.
Bolt Μ 12x30 Bolt Μ 12x30 Diagonal bracing
Safety nut Μ 12
Girder beam Diagonal bracing Pile
Safety nut Μ 12
5
3. Installing and aligning the support structure
The piles are placed in rows and are spaced at a maximum distance of 3,00 meters.
3,
0m
3, 0m
3, 0m
If needed the girders can be adjusted in order to insure the correct alignment.
3.1 ADJUSTMENTS The following adjustments can be made:
Girder beam
The girder connector can be adjusted in the vertical direction +/- 2cm The girder beam can be adjusted in the horizontal direction +/- 2cm
Steel fastener for girder beam Girder connector
Before making adjustments the bolts must be loosened.
Steel fastener for girder connector
3.3 TABLE FOR FASTENER TORQUE Drawing
Description
Torque
Fastener Μ 10x25
56 Nm
Fastener Μ 12x30
56 Nm
6
4. Installing purlins Two types of purlins are available: 타 Aluminium purlin ( SolarPrime) 타 Steel purlin ( FUS62 )
4.1 ALUMINIUM PURLIN ( SolarPrime ) The aluminium purlin (Solar Prime) is fastened to the steel girder beam with the corner clamp connector that is inserted into the channel on the side of the purlin and then it is fastened with an allen screw and a safety nut M8 to the girder beam.
Aluminium purlin Allen screw M8x30
Safety nut M8
Corner clamp connector Girder beam
4.1.1 PURLIN CONNECTOR When the purlin is used continuously to span over several girders, then a special purlin connector is used to fasten the two purlins together. The purlin connector is inserted into the chamber of the purlin and fastened with self-tapping stainless steel screws. Screw St4,2x13 Purlin Aluminium purlin connector
7
4.2 STEEL PURLIN ( FUS62 ) For connecting the steel purlin (FUS62) to the girder beam, use an allen screw M12x30 and M12 washer with safety nut M12.
Allen screw M12x30 Washer M12
Steel purlin
Safety nut M12
Girder beam
4.2.1 PURLIN CONNECTOR When the purlin is used continuously to span over several girders, then a special purlin connector is used to fasten the two purlins together. The purlin connector is fastened to the under side of the purlin with four allen screws M12x30 and washers M12. Safety nuts are not required as the connector has been threaded to directly receive the M12 bolts.
Allen screw M12x30 Washer M12 Steel purlin
Steel purlin connector
8
5. Installing the panels The panels are fixed to the purlins with special clamps. There are end clamps that are used to fix the panels at the beginning and the end of a series, and there are middle clamps that are used between two panels. The clamps are available preassembled (with allen screw, spring, plastic grip, hammer-head nut) and are availble for every panel thickness.
The hammer head nut is inserted into the channel of the purlin and turned to lock into the desired position. Then the clamp is fastened into place with the allen screw.
Allen screw Clamp
Hammer head nut
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6. Technical data sheets 1- point load F
SolarFine 150
L/2
Height
150 mm
Width
41 mm
Perimeter
522,34 mm
Ix
229,10 cm4
L 2- point load F L/3
25,71
Iy
cm4
Wx
29,68 cm3
Wy
cm3
12,54
F L/3 L
2 supports - Uniformly load q
Radii(x)
5,06 cm
Radii(y)
1,70 cm
L
Area
894,02 mm2
3 supports - Uniformly load
Weight
2413,85 gr/m
F (N) 20000
qL
qL
L
L
SolarFine 150
19000 18000 17000 16000 15000 14000 13000 12000
3-supports
11000
2-supports
10000 1 point load
9000 8000
2 point load
7000 6000 5000 4000 3000 2000 1000 0 0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6 L (m)
10
1- point load F
SolarFine 100 L/2
Height
100 mm
Width
41 mm
Perimeter
422,34 mm
L 2- point load F
F
cm4
Ix
78,53
Iy
18,79 cm4
L/3
L/3 L
Wx
14,87
cm3
Wy
9,17 cm3
Radii(x)
3,32 cm
Radii(y)
1,62 cm
Area
714,02 mm2
Weight
1927,85 gr/m
2 supports - Uniformly load q
L 3 supports - Uniformly load qL
qL
L
L
SolarFine 100
F (N) 15000 14000 13000 12000 11000 10000
3-supports 9000
2-supports
8000
1 point load
7000
2 point load
6000 5000 4000 3000 2000 1000 0 0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6
L (m)
11
SolarPrime 105
1- point load
F
105 mm
Width
77,8 mm
Perimeter
490,32 mm
Ix
107,81 cm4
Iy
39,11 cm4
Wx
18,24 cm3
Wy
10,05 cm3
Radii(x)
3,75 cm
Radii(y)
2,26 cm
Area
768,05 mm2
Weight
2073,72 gr/m
2 supports Uniformly load q
2- point load
F
Height
F
3 supports Uniformly load qL qL
L/3 L/3
L/2
L
L
L F (N)
L
SolarPrime 105
15000 14000 13000 12000 11000 10000
3-supports
9000
2-supports 8000 1 point load 7000 2 point load 6000 5000 4000 3000 2000 1000 0 0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6 L (m)
L
12
SolarPrime 80
1- point load
F L/3
L/2
F
Width
77,8 mm
Perimeter
440,32 mm
Ix
53,90 cm4
Iy
34,43 cm4
Wx
12,00 cm3
Wy
8,85 cm3
Radii(x)
2,80 cm
Radii(y)
2,24 cm
Area
688,05 mm2
Weight
1857,72 gr/m 3 supports Uniformly load qL qL
L/3 L
L
L
80 mm
2 supports Uniformly load q
2- point load
F
Height
L
SolarPrime 80
F (N) 15000 14000 13000 12000 11000 10000
2-supports 9000 3-supports 8000
1 point load
7000
2 point load
6000 5000 4000 3000 2000 1000 0 0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6 L (m)
L
13
1- point load
FUS 62
F
Height
62 mm
Width
41 mm
Perimeter
365,19 mm
Ix
17,70 cm4
Iy
12,90 cm4
Wx
5,62 cm3
Wy
6,29
cm3
Area
405 mm2
L/2 L 2- point load F L/3
F L/3 L
2 supports - Uniformly load q
Weight
3270 gr/m L 3 supports - Uniformly load
F (N) 10000
qL
qL
L
L
FUS 62
9500 9000 8500 8000 7500 7000 6500 6000
3-supports
5500
2-supports
5000 1 point load
4500 4000
2 point load
3500 3000 2500 2000 1500 1000 500 0 0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6 L (m)
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7. Structural design loads of brackets Load 1: Vertical compression (10kN) Load 2: Horizontal forces
(10kN)
Load 3: Vertical tensile forces (10kN)
10kN 10kN
10kN
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E.W.I. / ETICS
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The contents of this manual are subject to change without prior notice. Fischer Hellas Emporiki EPE is not responsible for typographical errors. PLS012 05/2012
1958, the beginning. 2012, world-wide.