solar-field al310 en

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Solar-field AL310Technical manual for aluminium support structure for photovoltaic free-fields/ flat roofs


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1. Aluminium system for free-fields

The aluminium support system for free-fields is made entirely from aluminium alloy EN AW 6060. 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 system offers a choice of heavy and light constructions, with the difference being the span

between the girders (3,1m & 2,5m accordingly).

The mounting of the system requires a reinforced concrete foundation.

1

1.1GENERAL

Typology Purlin PV panel layout Code

Aluminium25

P80 Portrait A80P-25

P80 Landscape A80L-25



Aluminium30





Aluminium35



P105 Portrait A105P-35P105 Landscape A105L-35


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2. Assembly for trianlges (free-fields)

The individual parts for assembling the trianlges are

provided with the necessary machining for easier

and faster installation.

The floor bracket is fastened to the concrete with

concrete anchor bolts (FBN II M12).

Attention: Isolating material must be placed between

the floor bracket and the concrete foundation in order

to protect the floor bracket and fasteners from

corrosion.

The rear floor bracket is placed 2 meters from the front

floor bracket on center.

The oval holes in the floor bracket provide the

necessary adjustments (left and right) in order to bring

the front and rear floor brackets in correct alignment.

Concrete

Foundation

Isolating

Material

Floor

Bracket

Anchor

Bolts

Front floor

bracket

Rear floor

bracket

2,0m

2

2.1 FIXING TO THE FOUNDATION


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The legs are placed in the floor brackets and are fastened with a hexagon head bolt M12x80 and a

safety nut M12. The washer with ribs is used to adjust the height of the leg and then the hexagon

head bolt is tightened.

The diagonal bracing is placed between the two legs in

order to stabilize the construction

The brace is fastened to the legs with a hexagon head bolt

M12x60 and a safety nut M12.

Front leg

Safety nut 12

Washer with ribs for

adjusting the hieght

Hexagon headbolt 12x80

Rear leg

Safety nut 12

Hexagon head

bolt 12x60

Diagonal

bracing

3

2.2 INSTALLING THE FRONT AND REAR LEGS

2.3 INSTALLING THE DIAGONAL BRACING


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First the girder connector is fastened to the girder at a specific position according to the typology and

construction documentation provided for the specific project.

Hammer head screws are placed inside the groove under the girder and are fastened to the girderconnector with safety nuts.

GirderSafety nut 8

Hammer head screw

8x20

Girder connector

4

2.4 INSTALLING THE GIRDER CONNECTOR


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The girder with the girder connector fastened in the correct position is placed over the front and back

legs and fastened with a hexagon head bolt M12x80 and a safety nut M12.

The girder connector can be adjusted to insure that the correct height of the girder after tightening

the hexagon head bolts.

Afterwards the end covers are placed on both ends of the girder.

End cover

for girder

Hexagon head

bolt 12x80

Girder

Safety nut

Girder

connector

Washer with

ribs for

adjusting the

5

2.5 INSTALLING THE GIRDER


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3. Installing and aligning the triangles (free-fields).

After repeating the previous steps, the

triangles are placed in rows according

the the project specifications.

The largest span that can be used

between girders is 3,1m

If needed the triangles can be adjusted

in order to insure the correct

alignment.

The legs can be adjusted in height by using

the adjustability of the floor bracket.

The girder can be adjusted in length by loosening the hammer head bolts, which will free the girder

to move both left and right.

Also the girder connector can be used to adjust the height of the girder up and down.

Hammer head bolt

8x20

6

3.1 ADJUSTMENTS

2,0m


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Diagonal bracing is placed at the beginning and the end of a set of triangles and every third span.

Diagonal

bracing

Drawing Description

Anchor boltAccording to

specifications

Bolt 12x60 32 Nm

Bolt 12x80 56 Nm

Hammer head bolt

8x2032 Nm

Torque

7

3.2 INSTALLING DIAGONAL BRACING

3.3 TABLE FOR FASTENER TORQUE


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4. Aluminium systems for flat roofs

The aluminium support system for flat roofs is made entirely from aluminium alloy EN AW 6060. All

of the fasteners and accessories (bolts, nuts, etc...) are made from stainless steel A2.

The system is available in 2 basic versions, 2 portrait & 3 landscape with angles 2530.

The fixation to the flat roof is made with the appropriate chemical anchor bolts (FIS EM & FIS HB)

that are tested and certified for weather sealing.

4.1GENERAL

Typology Purlin PV panel layout Code

Aluminium flat

roof 25

P80 Portrait AL80P-25

P80 Landscape AL80L-25

Aluminium flat

roof 30

P80 Portrait AL80P-30

P80 Landscape AL80L-30

8


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5. (Flat roofs).Assembly for trianlges

The individual parts for assembling the trianlges are

provided with the necessary machining for easier

and faster installation.

The floor bracket is fastened to the concrete with

chemical anchor bolts. The appropriate types of

chemical anchors are the FIS HB (when the support is

fastened directly to the concrete slab or with a thin

insulating pad) and the FIS EM (for fastening over thick

plates of insulation). The insulation can be asphalt,

cement, polystyrene plates, etc. The rods M12 are

recommended to be at least A2 quality and the nominal

depth of the anchor is provided in the technicalmanuals of fischer.

Attention: Isolating material must be placed between

the floor bracket and the concrete foundation in order

to protect the floor bracket and fasteners from

corrosion.

The rear floor bracket is placed 2,62 meters from thefront floor bracket on center.

The oval holes in the floor bracket provide the

necessary adjustments (left and right) in order to bring

the front and rear floor brackets in correct alignment.

Flat roof

Isolation

Material

Floor

Bracket

Anchor

Bolt

Front Floor

Bracket

Rear Floor

Bracket

2,62

m

5.1 FIXING TO THE FLAT ROOF

9


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The legs are placed in the floor brackets and are fastened with a hexagon head bolt M12x80 and a

safety nut M12. The washer with ribs is used to adjust the height of the leg and then the hexagon

head bolt is tightened.

Safety Nut 12

Washer with ribs

for adjusting the

hieght

Washer

with ribs

foradjusting

the hieghtHexagon Head

Bolt 12x80

Rear Leg

Rear Floor

Bracket

5.2 INSTALLING THE FRONT AND REAR LEGS

10

First the girder connector is fastened to the girder at a specific position according to the typology and

construction documentation provided for the specific project.

Hammer head screws are placed inside the groove under the girder and are fastened to the girder

connector with safety nuts.

Afterwards the end covers are placed on both ends of the girder.

Girder

Safety Nut

8

End Cover for Girder

Hammer HeadBolt 8x20

Girder

Connector

5.3 INSTALLING THE GIRDER CONNECTOR


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11

The girder with the girder connector fastened in the correct

position is placed over the back leg and fastened with a

hexagon head bolt M12x80 and a safety nut M12.

The girder connector can be adjusted to insure that the correct

height of the girder after tightening the hexagon head bolts.

Bolt 12x80

Girder

Safety Nut

Girder

Connector

Washer with

ribs for

adjusting the

hieght

Bolt 12x80

Floor

Bracket

Girder

Safety Nut

Washer with

ribs for

adjusting the

hieght

5.4 INSTALLING THE GIRDER

The diagonal bracing is placed between the back leg and

the girder in order to stabilize the construction

The brace is fastened to the legs with a hexagon head bolt

M12x60 and a safety nut M12.

Safety Nut 12

Hexagon head

bolt 12x60

Diagonal

Brace


Girder


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6. ( ).Installing and aligning the triangles Flat roofs

After repeating the previous steps, the

triangles are placed in rows according

the the project specifications.

The largest span that can be used

between girders is 2,5m

If needed the triangles can be adjusted

in order to insure the correct

alignment.

The legs can be adjusted in height by using

the adjustability of the floor brackets.

Also the girder connector can be used to adjust

the height of the girder up and down.

12

6.1 ADJUSTMENTS

2,5m

2,5m

2,62m


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Diagonal bracing is placed at the beginning and the end of a set of triangles and every third span.

Drawing Description

Anchor BoltAccording to

specifications

Bolt 12x60 32 Nm

Bolt 12x80 56 Nm

Hammer head

bolt 8x2032 Nm

Torque

13


6.3 TABLE FOR FASTENER TORQUE

Diagonal

Bracing


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14

Purlin

Connector

PurlinScrew St4,2x13

Hammer head

nut

Corner

clamp

connector

Allen screw

7. Installing purlins

The purlins are installed over the girders with a special corner clamp connector.

The hammer head nut is inserted into the channel of the girder and is locked into posistion with a

clock-wise turning motion.

The corner clamp is inserted into the side channel of the purlin and is fastened to the hammer head

nut with an allen screw M8.

7.1 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.


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8. 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 pre-assembled (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. Hammerhead nut

Clamp

15

Allen screw


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F

L

L/2

1- point load

FF

L

L/3 L/3

2- point load

q

L

2 supports - Uniformly load

qL qL

L L


SolarFine 150

Height 150 mm

Width 41 mm

Perimeter 522,34 mm

Ix4

229,10 cm

Iy4

25,71 cm

Wx3

29,68 cm

Wy3

12,54 cm

Radii(x) 5,06 cm

Radii(y) 1,70 cm

Area2

894,02 mm

Weight 2413,85 gr/m

16

9. Technical data sheets

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

16000

17000

18000

19000

20000

0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6

F (N)

L (m)

SolarFine 150

3-supports

2-supports

1 point load

2 point load


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SolarFine 100

Height 100 mm

Width 41 mm

Perimeter 422,34 mm

Ix 478,53 cm

Iy 418,79 cm

Wx 314,87 cm

Wy 39,17 cm

Radii(x) 3,32 cm

Radii(y) 1,62 cm

Area 2714,02 mm

Weight 1927,85 gr/m

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6

F (N)

L (m)

SolarFine 100

3-supports

2-supports

1 point load

2 point load

17

F

L

L/2

1- point load

FF

L

L/3 L/3

2- point load

q

L


qL qL

L L



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SolarPrime 105

Height 105 mm

Width 77,8 mm

Perimeter 490,32 mm

Ix 4107,81 cm

Iy 439,11 cm

Wx 318,24 cm

Wy 310,05 cm

Radii(x) 3,75 cm

Radii(y) 2,26 cm

Area 2768,05 mm

Weight 2073,72 gr/m

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6

F (N)

L (m)

SolarPrime 105

3-supports

2-supports

1 point load

2 point load

F

L

L/2

1- point load

FF

L

L/3 L/3

2- point load

q

L

2 supports

Uniformly load

qL qL

L L

3 supports

Uniformly load

18


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SolarPrime 80

Height 80 mm

Width 77,8 mm

Perimeter 440,32 mm

Ix 453,90 cm

Iy 434,43 cm

Wx 312,00 cm

Wy 38,85 cm

Radii(x) 2,80 cm

Radii(y) 2,24 cm

Area 2688,05 mm

Weight 1857,72 gr/m

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6

F (N)

L (m)

SolarPrime 80

2-supports

3-supports

1 point load

2 point load

19

F

L

L/2

1- point load

FF

L

L/3 L/3

2- point load

q

L

2 supports

Uniformly load

qL qL

L L

3 supports

Uniformly load


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20

15kN

Load 1: Vertical compression (15kN)

Load 2: Horizontal forces (6,5kN)

6,5kN

10. 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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1958, the beginning.

2012, world-wide.

Founded in 1958, the fischer brand

is synonymous for safe, innovative

and sophisticated technical

solutions which set new standards

in fixing engineering. The products

and applications are unique fixing

systems that are invented and

produced by fischer. That is the

reason that there exist unlimited

solutions and a large range of

applications, and today is

recognised as the leader in the

market of fixing systems.

Chemical

Fixing Systems

Drill Bits

& Accessories

Metal

Fixing Systems

MEP

Fixing Systems

Exterior Insulation

Fixing Systems

Fasteners Chemical

Building products

Nylon

Fixing Systems

Gypsum Board

Fixing Systems

Photovoltaic

Fixing Systems

fischer Hellas Emporiki EPE

G. Papandreou 125, Metamorphosi 144 52, Athens

Tel.: +30 210 28 38 167, Fax: +30 210 28 38 169

info@fischer gr

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PLS01205/2012

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