NL8100094A - POLE CONSTRUCTION. - Google Patents

Description

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Pile construction.

The invention relates to "a pile structure in which piles of wood can be constructed in greater lengths than" trees grow and the raw material is used in the most possible primary state.

The invention aims in the first place to obtain large lengths while retaining the good elastic properties of wood and in the second place the use of short trunk pieces often remaining in production in the most natural form.

Also, by means of These construction defects that occur in the growing wood can be eliminated without much material loss.

Furthermore, by combining different stem diameters, the strength of the pile can be influenced in such a way that the largest diameter also occurs on the most heavily loaded pile section, thereby saving raw material.

Constructions are known on square piles where pile lengths by means of plates or profiles are connected to each other, but these constructions can only be used a maximum of several times on one pole because of a) the location of the elasticity and 20 b) the expensive version, the pole diameter was then max. 50 to 60 cm.

The logs (l), which can vary in length, are cut flat. After this, through holes (2) are drilled in a circle around the center of the diameter. The diameter of the holes depends on the tension wires to be used and the number of holes depends on the pile diameter.

These holes can run parallel to each other, but it is also possible to drill them parallel to the outside of the pile to be constructed.

The logs are now grouped one behind the other in such a way that the piece with the largest diameter comes to rest on the pile section which is to be loaded most heavily later and the logs that precede or follow below gradually decrease in diameter.

Tension wires are now passed through the holes which connect the successive logs (l) to each other.

The tension wires can be of solid or braided steel or of plastic e.g. carbon fibers.

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These tension wires are now pre-tensioned to the desired tension and blocked at the ends in the manner known from other materials, it being recommended that the parts that have to transmit the tensile force of the tension cables to the wood 5 at the location of the clamping fixings are sufficiently large. surface to absorb this force. In many cases the head ends of the constructed pile will have to be provided with a steel plate over the entire surface (of these often thinner ends) in which the spherical cables are fixed.

During the construction of the pile, it is also possible to pre-tension 2 or more trunk elements together on the tension cables, which gives possibilities to e.g. construct curved elements.

If you wish to have a smooth outside of the pile for aesthetic reasons, this outside can be finished in multi-sided or even around 15 degrees.

It is possible to use less durable woods or to e.g. prevent hearing damage * by filling the drilled holes (2) with a fungicide or insect repellent, which will spread over the wood of the entire pile.

It is then recommended, without this being at the expense of the strength of the pile, to drill a hole (3) of larger diameter in the center as well. This hole can then also serve as a centering point during the construction of the pile.

If one wishes to use these pesticides, it is recommended to provide a gasket (4) between the pile pieces.

The invention will be explained in more detail with reference to the drawings, in which an exemplary embodiment is presented.

Fig. 1 shows the bollard in front view, here the trunk with the largest diameter is also placed where the greatest load will come into practice, depending on the need, the pile can be made heavier or lighter locally. The post is smoothly finished on the outside here. "

Fig. 2 Gives a cross section on the largest diameter. The hole 3 3 is here kept spacious so that it can contain sufficient fungus or insecticide against the diameter.

Fig. 3 shows a section on the smallest diameter.

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Fig. 4 shows a section (1) of the largest diameter with a section (1) of a smaller successive diameter thereon. Here the "outside is not smoothly finished. The holes for the tension wires are heard here parallel to each other, but are of a diameter such that 5 the tension sleeves can pass generously. The optional gasket (4) is not drawn and can be solid or liquid .

The spankahels are not drawn in the views.

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Claims (8)

Pile construction according to claim 1, characterized in that the drilled holes run parallel to each other. Pile construction according to claims 1 and 2, characterized in that the drilled holes run parallel to the outside of the pile to be constructed. Pile construction according to claims 1 to 3, characterized in that the pile is formed by logs of different diameters grouped in such a way that the log with the largest diameter comes to lie at the heaviest place of the pile. Pile construction according to claims 1 to 4, characterized in that the tension cables can be tensioned and anchored between 2 or more logs in addition to the ends of the pile construction. Pile construction according to Claims 1 to 5, characterized in that the anchoring plates of the tensioning wires are sufficiently large in surface that they can bear the required tensioning force in view of the type of wood. Pile construction according to claims 1 to 6, characterized in that the pile body rondo® thus obtained can be processed so that a smooth surface is obtained. Pile construction according to claims 1 to 7> with the; characterized in that the holes intended for the tension wires can also be filled with a fungus and / or insecticidal and / or anti-rust agent. Pile construction according to Claims 1 to 8, characterized in that the center of the longitudinal stem pieces of the fiber is also drilled out to facilitate the centering of the pile during manufacture and to be able to fill with mold later And / or insecticide. Pile construction according to Claims 1 to 9, characterized in that a yoke can be positioned between the contact surfaces of the logs to prevent any preservatives from leaking out.