ARCH TO ARC – READY GREENHOUSE

ARCH TO ARC - THE FINISHED CONSERVATORYArched design with all other conditions being equal, will always be stronger, safer and cheaper structures of other types — especially when the arc itself consists of rods, working only on tension and compression. At the time, it was appreciated by the famous mechanic Kulibin, who created a scale model of the arch bridge, which was supposed to connect the banks of the Neva. The original arch design, suitable for the creation of greenhouses, conservatories, sheds, garages and other structures, have managed to create a reader of our magazine from Novgorod S. Y. Makurin. The module of such a set represents a Central design consisting of 240 wooden rods (rails) with cross-section 20×50 mm and a length of from 0.5 to 1 meter (volume of the material is 0.2 cubic meters). The module area is 15 square meters. Docking these modules, you can get the arch structures of any size and different configuration.

The frame of the arch is assembled from relatively short rods (rails) with cross-section 20×50 mm, the ends of which are chamfered so that between the mating terminals formed angle of 162 degrees. This angle provides a chamfer, the legs of which are respectively 50 mm and 1 7 mm Only for each of the modules, it is necessary to prepare 60 rods 16 of various sizes in accordance with table No. 1. You must also prepare 16 bolts with thread M5 or MB and 150 mm in length and 5 bolts (also threaded M5 or MB) with a length of 90 mm with an appropriate number of nuts and washers. Also need a wooden strip with the size 20x50x50 mm.
Mounting frame it is recommended to start with the Assembly of the regional circuit model of an item from parts 1 and 1-1. To do this, in accordance with Assembly diagram parts laid out on relatively flat terrain, together with adjacent rods in accordance with Assembly scheme. All the elements are joined together using metal plates (with a couple of holes in each), which are placed on the protruding ends of the bolts and pressed nuts.
 
If the arch structure is constructed for the greenhouse or Conservatory, transparent film coating they provide a single cut. While it is best to use a plastic film of a width of 260 cm, which was only one greenhouse module will need to 17.6 m of this material. To obtain the spherical surface of the shell throughout the length of the cloth are laid pleat width 90 mm and 592 mm and glued with adhesive tape. By the way, this tape for vyklevyvanija shell under one module will need about 50 linear meters.
 
The façade and plan of the arched frame. Below is a typical connection of the rods of the frame
 
The facade and plan of the arched frame. Below is a typical connection of the rods of the frame.
 
 
Standard rod arched frame. The size of each of them in the table.
 
Typical rod arched frame. The size of each of them in the table.
 
Film cover the arched framework. Bottom — pattern top and side panels
 
Film cover the arched framework. Bottom: pattern of the side and top panels.
 
The configuration of the ends of the rods arched frame n the scheme of their mates (angle between the mating rods 162 degrees)
 
The configuration of the ends of the rods arched frame n the scheme of their mates (angle between the mating rods 162 degrees).
 
 
Scheme of Assembly of the element the arched frame. Numerals in the drawing designate the numbers of the rods in accordance with the table.
 
Scheme of the Assembly of the element the arched frame. Numerals in the drawing designate the numbers of the rods in accordance with the table.
 
Table 1
 
Similarly cut and side panels — each of which represents a semicircle on the periphery of which is also laid folds — their width is 16 mm and the step is 592 mm.
 
Side and Central panels pre-smachivaetsya single seam (the stitch step — 10 mm) and then joined with adhesive tape. Finally a plastic sheath is attached to the frame with nylon cords, forming a kind of grid.
 
The technique described above refers to construction consisting of one module. However, there is no problem with the creation of greenhouses or greenhouse from two, three and more modules.
 

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