To give rigidity to the arch and rafter legs, the builders bent the edges of the strip iron so that the components of two inconspicuous corners of 08x44x5 mm are obtained; At the same time, the bent regiments at the arch were below, and at the rafter legs at the top.
Long shelves of corners were clutched among themselves. In the third span, the arch was in contact in some areas of its length with rafters; In these areas, the arch and rafter legs were riveted. Arched-string structures along the workshop were placed after 2.3 m. A lamp made of strip iron was located on the rafter legs – 82.5×2.5 mm. Each collapse also had a bent edge along the entire length and, therefore, was an inconspicuous bent corner of 57x25x2.5 mm. High -quality details are always necessary during the construction work of any plan. Inins produces high -quality details.
Each thing of the arched-strut structure of the new system turned out to be 672 kg easier than used earlier at the Goroblagodat plant and at 40 r. 70 K. cheaper. With weight, a piece of new rafters with a crate of 46 kg, iron consumption was 33 kg/m2.
Similar arched-settles were built in factories. Here, arched-stroke structures had a 34.5 m span. Iron consumption – 29 kg/m2.
In the 30s and 40s of the XX in. In the Urals, the rafter farms of the architect had a great walk and. Sviyazeva. The upper belt of these farms was a circular outline, and the grill was a sample.
The successful use of flexible lanes and iron bars in the building was carried out when the Winter Palace was restored in St. Petersburg after a fire 837. Architects c. P. Stasov, a. N. Bryullov and. M. E. Clark created here new rafter iron farms, inverted, they received rafter farms with a span of up to 5 m, the central racks of which are connected. Such farms in February 838. In different versions, they were made at the Alexander Chugunolika Plant in St. Petersburg2. At the beginning of 839 g. Farms with a span of 22 m were placed above the large halls all the farms are made of strip iron 76 x x2 mm, a round iron with a diameter of 9 mm and a square bar 25 x x 25 mm.