RU187329U1 - COMPOSITION WOODEN CONCRETE STAND - Google Patents

Abstract

The utility model relates to the field of low-rise construction and can be used as struts of lattice structures and columns of residential and public buildings. A useful model is aimed at increasing the strength and reducing the material consumption of a wood concrete pillar by increasing the effect of the concrete component and increasing the cohesion of the package of glued boards. glued package of boards, transverse naglie plates, plastic shell - an insert filled with concrete. To increase the carrier method In this case, the hollow insert is made of fiberglass with ring-oriented fibers, filled with concrete, and the package of boards rallies around the perimeter with plate pins. The composite rack made in this way has increased load-bearing capacity and reliability, reduces material consumption, and increases load-bearing capacity due to the use of the shell filled with concrete with improved pipe concrete effect, and the arrangement of plate pins across the main compressive stresses ki.

Description

The utility model relates to the field of construction and can be used as racks of lattice structures, columns of residential and public buildings.

A wooden counter is known that contains a package of boards glued along the layers, forming a rectangular section along the entire length (see the book Engineering Structures, under the editorship of V.V. Ermolov, M., VSh, 1991, p. 85, Fig. 3.20 but).

The disadvantages of this glued board are: the inefficiency of the boards in cross section due to the large deformability across the fibers, which leads to excessive material consumption.

Known tubular column having a shell filled with concrete (see a / c of the USSR No. 104647 Е04С 3/36, 1955).

The disadvantages of this column are: the inefficiency of the concrete due to friction between concrete and the metal shell, a lot of weight.

The closest is a wood-glued column, comprising a shell and aggregate in the form of prefabricated glued segments provided with an external multilayer shell (see a / c USSR No. 751936 Е04С 3/30, publ. 30.07.80, bull. No. 28).

The disadvantages of this column are: the increased complexity of manufacturing, the inefficiency of the mesh multilayer shell and prefabricated glued wooden segments, which is why it is more material intensive.

The utility model is aimed at the rational use of the strength properties of cross-sectional materials and thereby increase the total bearing capacity of the rack.

The result is achieved in that in a wooden rack, including a glued package of boards, a glued plastic sheath and monolithic filling concrete, the sheath is made of fiberglass (polycarbonate), with fibers oriented along the ring. The result is also achieved by the fact that in the transverse direction of the rack plate lamellae are glued in a checkerboard pattern along the perimeter with a step along the length of no more than half the height of the section of the rack.

The use of a plastic shell with oriented glass fibers along the ring, due to the absence of friction between concrete and the wall of the shell and the use of glued nails around the perimeter of the cross section, increases the effect of pipe concrete several times.

The presence of pins glued around the perimeter increases the bearing capacity of the boards by restraining lateral deformations.

In FIG. 1 depicts a wood-concrete stand consisting of a package of boards with a plastic-coated plastic sheath glued in section A-A and an appearance with transverse pins in a checkerboard pattern. In FIG. 2 shows a section B-B and appearance — with transverse pins around the perimeter. In FIG. 3 is a sectional view of the rack, in FIG. 4 - rack cross-sectional options a) square cross-section, b) octagonal cross-section, c) twelve-square cross-section.

The wood-concrete composite stand includes a package of boards 1, adhesive layers 2 fiberglass shell 3 with oriented fibers 4, glued into the stand on the adhesive 5, filled with concrete 6.

To increase the strength of the rack in the transverse direction, plate laths 7 are glued in a checkerboard pattern or around the perimeter of the section of the rack with an overlap of the ends of the nails ..

In the factory, first gluing the package of boards 1 with pre-designated samples to form a round through hole in the middle of the section, gluing the cross plate pins 7. The fiberglass sheath 3 with oriented fibers 4 is inserted into the hole and glued to glue 5. After preparatory work, the shell is filled 3 with concrete 6. Placement in the middle of the cross section of the plastic shell with ring-oriented fibers filled with concrete and gluing along the perimeter of the cross section of the plate x pins increases the bearing capacity of the wooden part and the composite stand as a whole by increasing the effect of pipe concrete several times.

The assembled board-glued wooden composite stand, increasing the effect of pipe concrete in the package of boards, provides a reduction in material consumption, and also increases the overall bearing capacity and reliability of the composite stand.

Claims (1)

A composite wood-concrete stand including a glued package of boards, a glued inner shell filled with concrete, characterized in that the glued shell is made of a polymeric material (fiberglass, polycarbonate) with fibers oriented along the ring, and lamellar pins are glued in the transverse direction of the rack in a checkerboard pattern around the perimeter sections in increments of not more than half the height of the section along the length of the rack.

Images