Butech, 2012.pdf

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stringers
butech can supply two different types of stringers:
• Basic stringer of orthogonal direction connection (versions “L”, “M” or “P”);
• Additional stringers of diagonal direction connection (versions “D” or “X”).
All stringers are produced by cold stamping galvanized steel sheet (minimum thickness of 3μ),
with special profile and are designed to improve mechanical endurance and ensure reduced
tolerances of modules and the ease of exchange them.
Its blockage in the radios by auto-tapping metric screws ensures the electric continuity of the
system and gives a great stability to the structure.
stringers version “l” (light)
They are open section (25 mm wide, 12 mm high, 0.8 mm thickness and 547 mm long). They have a higher longitudinal nerve that increases its performance with respect
to bending and improves the way to control the deformations. The ends are fitted with a special coupling system that allows quick and optimum placement of the radii of
the head of the pedestals.
stringers version “M” (medium)
Stringer section L: 25x12x0,8 mm
Length: 547 mm
Unit Weight: 0.175 Kg
Nominal amount: 5.7 pz/m2
Nominal amount screws: 11.4 pz/m2 They are manufactured by cold stamping galvanized steel sheet (minimum thickness 3μ). They are open section (25 mm wide, 38 mm high, 0.8 mm thickness and 547 mm
long). They have longitudinal nerves also in the vertical walls and lower flaps increase the benefits in relation to bending, as compared to the stringer light, and enhance
the way in controlling the deformation. In addition to the hole for connecting the ground connection, the ends are equipped with a special coupling system that allows
quick and optimum placement of the radii of the head of the pedestals.
Stringer section 25x38x0,8 mm
Length: 547 mm
Unit Weight: 0.370 Kg
Nominal amount: 5.7 pz/m2
Nominal amount screws: 11.4 pz/m 2
stringers version “P” (heavy)
They are made by special profile cold-drawing of galvanized steel (minimum thickness of 3μ). Its closed section (25 mm wide, 40 mm high, 1 mm thickness and 549 mm
long) further increases its performance compared to the previous two types (light and medium stringers). The ends are fitted with a special coupling system that allows
quick and optimum placement of the radii of the head of the pedestals. The stringer is provided of a hole for the connection of ground connection.
They are made by special profile cold-drawing of galvanized steel (minimum thickness of 3μ) and are designed to satisfy the more demanding needs and give the maximum
stringers of diagonal connection (version “D” or “X”)
stability and stiffness to the structure. Both are closed section (20 mm wide, 40 mm high, 1 mm thickness and suitable length). In addition to the hole for ground
connection, the ends are equipped with a special coupling system that allows quick and optimum placement of the radii of the head of the pedestals.
All the stringers are supplied with special joints of black extruded plastic with anti vibration function and air tightness. They do not have sharp edges, especially dangerous
during handling and assembly, which may damage the plastic covering to pass underneath.
references
Stringer section 25x40x1 mm
Length: 549 mm
Unit Weight: 0.580 Kg
Nominal amount: 5.7 pz/m2
Nominal amount screws: 11.4 pz/m 2
Stringer section D 20x40x1 mm
Length: 792 mm
Unit Weight: 0.73 Kg
Nominal amount: 2.8 pz/m2
Nominal amount screws: 5.6 pz/m 2
Stringer section X 20x40x1 mm
Length: 368 mm
Unit Weight: 0.340 kg
Nominal amount: 11.1 pz/m2
Nominal amount screws: 22.2 pz/m 2
100071898 TORNILLOS PARA TRAVESAÑOS L/M/P B80305235
100071825 TRAVESAÑO LIGERO B80305230
100071864 TRAVESAÑO MEDIO B80305231
100071899 TRAVESAÑO PESADO B80305232
100063200 TRAVESAÑO PUENTE 1200 MM B80305152
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