Arched structure for a greenhouse or conservatory. Drawing, description

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Arched structure for a greenhouse or conservatory. Tips for the home master

Builder, home master

An arched structure, all other things being equal, will always be stronger, more reliable and cheaper than other types of structures - especially when the arch itself consists of rods that work only in tension and compression. At one time, this was appreciated by the famous mechanic Kulibin, who created a scale model of an arched bridge, with the help of which it was supposed to connect the banks of the Neva.

We offer an arched structure suitable for creating greenhouses, greenhouses, sheds, garages and other structures. The module of such an arch is a rod structure consisting of 240 wooden rods (battens) with a section of 20x50 mm and a length of 0,5 to 1 meter (material volume - 0,2 cubic meters). The area of the module is 15 square meters. By joining such modules, it is possible to obtain arched structures of any area and a wide variety of configurations.

The frame of the arched vault is assembled from relatively short rods (battens) with a section of 20x50 mm, the ends of which are bevelled so that an angle of 162 degrees is formed between the mating rods. Such an angle is provided by a chamfer, the legs of which are 50 mm and 1 7 mm, respectively. In total, for each of the modules, it is necessary to prepare 60 rods of 16 different sizes in accordance with table No. 1. It is also necessary to prepare 16 bolts with an M5 or M6 thread and a length of 150 mm and 5 bolts (also with an M5 or Mb thread) 90 mm long with the appropriate amount nuts and washers. You will also need plank pads with dimensions of 20x50x50 mm.

It is recommended to start mounting the frame from assembling the edge contour of a typical element from parts 1 and 1-1. To do this, in accordance with the assembly scheme, the parts are laid out on a relatively flat area together with the rods adjacent to them in accordance with the assembly scheme. All elements are connected together using metal plates (with a pair of holes in each), which are put on the protruding ends of the bolts and pressed with nuts.

If the arched structure is being built for a greenhouse or conservatory, then a one-piece transparent film coating is provided for them. In this case, it is best to use a polyethylene film 260 centimeters wide - in total, 17,6 m of this material will be required for one greenhouse module. To obtain a spherical surface of the shell, folds 90 mm wide with a step of 592 mm are laid along the entire length of the panel and glued with adhesive tape. By the way, such a tape for gluing the shell for one module will need about 50 running meters.

Facade and arch plan. Below - a typical connection of the frame rods (click to enlarge)

Typical rod of an arched frame. The sizes of each of them are in the table (click to enlarge)

The film shell of the arched frame (click to enlarge). Below - a pattern of the top and side panels

Arched structure for a greenhouse or conservatory
The configuration of the ends of the rods of the arched frame and the scheme of their pairing (the angle between the mating rods is 162 degrees)

Scheme of the assembly of the element of the arched frame. The numbers in the drawing indicate the numbers of the rods in accordance with the table (click to enlarge)

Table 1
Arched structure for a greenhouse or conservatory

The side panels are cut out in a similar way - each of them is a semicircle, along the periphery of which folds are also laid - their width is 16 mm and the pitch is 592 mm.

The side and central panels are pre-brushed with a single-thread seam (stitch pitch - 10 mm), and then connected with adhesive tape. Finally, the polyethylene shell is fixed on the frame with nylon cords, forming a kind of mesh.

The technology described above refers to a structure consisting of a single module. However, there are no problems when creating a greenhouse or conservatory from two, three or more modules.

Author: S.Yu.Makurin

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