WOODEN BRIDGE 0010-254

 

0010-254

The wooden bridge is 270X100 cm and 120 cm high and consists of

• 4 pcs wooden pillars 9×9 cm in height and 120 cm high
• 2 pcs wood 9×9 cm and 270 cm long
• 8 pcs 9×9 cm cross section and 100 cm cross section
• 2 pcs wood 9×9 cm and 100 cm long
• 2 pcs birch plywood cross section 18X1.8 cm and 100 cm long
• Chains coated with safety plastic
• 4 pairs of metal mounting brackets

 

The vertical columns are connected to the horizontal woods forming two “P”, spaced 100 cm apart. These two “P” are connected by means of two 9×9 cm cross sections and 100 cm lengths on which a portion of plywood 18×1.8 cm and 100 cm long forming the step for entering the bridge.

Along the bridge and with the help of chains, eight (8) 9x9cm and 100cm woods are suspended, which is the floor of the bridge. The woods are attached to the chain in such a way that they do not touch each other during their oscillation.

BACKPACK BASES

For fixing the instrument to the ground, each pair has a pair of mounting bases.

The mounting bases consist of two galvanized metal plates and then painted with electrostatic paint, of a shape “P” and approximately 100x12x4 cm thick and 0.5cm thick, which “embrace” the column and are joined by passing screws 5 / 8 ″ X15. At the bottom there is a metal flange to hold them in the concrete pit.

Only ground irons, which hold the column at least 5 cm above the ground, are prevented from being ground in order to prevent the wood from being eroded by soil moisture.

TIMBER

The wood used is composite non-stick Swedish pine timber, in accordance with EN 351. It is manufactured with a special compound (welding of wood) in various sections depending on the intended use.

COMPOSITE wood is 40% stronger than whole wood. It has a strength of 360 kp / m2 and a specific weight of about 480 kg / m3.

• Contains about 15% moisture
• Contains minimal juices (resin) compared to other pine family trees in other countries (weather in northern Sweden up to -25 ° C)
• Has thermal conductivity s = 0.10 Kcal / Mho and sound insulation 3.5 times greater than concrete or brick of equal thickness.
• Has antimagnetic properties and is a poor conductor of electricity
• Resistant to fire and classified in categories F30 and F60 (by DIN 4120) according to its cross-section.
• When the outer part of the cross-section burns, its interior protects and retains its durability.
• It is processed just like commercial wood
• Maintains its shape and distorts or creates minimal fractures
• Annual wood rings are usually perpendicular to the long side of the cross-section with a significant increase in the mechanical strength of this surface when applied to floors.

All corners of the wood are planed with a radius of about 5 mm.

PAINTED PLYWOOD BIRCH

The plywood elements required for our constructions are approximately 20 mm thick and are made of 1.5 mm thick laminated wood with pressurized heat sealant using non-toxic phenolic base resins. They are painted with water-soluble paints to which no seals, thinners or paints containing lead, chromium, cadmium or other heavy metals have been attached. The colors are also very resistant to adverse weather conditions.

The above plywood sheets are in accordance with EN 314-2. The quality of the plywood is such that no further processing is required before painting, such as, for example, stocking, and reliefs and themes can be engraved.

PLASTIC INFORMATION

The plastic components required to manufacture the equipment are highly resistant to UV radiation and adverse weather conditions. Preferred are recyclable materials such as polyethylene (PE) or polypropylene (PP). Specifically all screws protruding from the equipment over 5 mm are covered with polypropylene (PP) plastic plugs. They are also safe for the safety and health of children.

METALLIC ELEMENTS

The metallic elements used in the manufacture of the equipment (screws, joints, etc.) are made of metals either thermo-galvanized or electro-galvanized, where the surface preparation has been preceded by sandblasting or stainless steel. The dimensions and cross-sections of the metallic elements are sufficient to accommodate (with an appropriate safety factor) the loads for which they have been designed to withstand corrosion and adverse weather conditions.

PAINTS

The varnishes and the colors that protect the wooden parts are specially designed for the climate of our country (temperature changes, open or closed areas etc.) are absolutely harmless to the users (they do not contain lead, chromium, cadmium and other heavy metals). ) and give great durability to our constructions.

PACKING

The following procedure is used for fixing the equipment:

At this point where the column is to be placed, an 80 cm deep pit is opened. about 60cm in diameter. Then, once the column is inserted, the pit is filled with frusto-concreted concrete until it reaches 20 cm. from the surface of the ground, where it is covered with soil.

Only ground irons, which hold each column at a distance of about 10 cm from the ground, are prevented on the ground in order to prevent the wood from corroding the soil moisture.

 

All production work processes for the processing of raw materials are carried out according to:

• EN 1176 standards 1-6,
• ISO 9001: 2015 quality system
• The ISO 14001: 2015 environmental management system