Assembly structure plans. Beam cage.

1. Construction material - steel grade C245 according to GOST 82-70*

2. Welding seams to be performed using manual arc welding GOST 5264-80, electrode E42 GOST 9467-75*

3. Flange seams during the manufacture of main beams to be made using automatic welding (wire SV-08A GOST 2246-70*). Quality control of seams to be conducted at the factory using physical methods.

4. Factory seams, except for flange seams, to be produced using semi-automatic welding (wire SV-08-A GOST 2246-70*)

5. The legs of the seams not specified in the project shall be taken as equal to 6mm.

6. Protection of structures against corrosion should be carried out in accordance with the guidelines of SNiP 2.03.11-85 "Protection of construction structures against corrosion" and SNiP 3.04.03-85 "Protection of construction structures and buildings against corrosion"

7. Bolts according to GOST 7798-70 should be accepted with a strength class of 5.8

8. All bolts of normal accuracy.

9. The manufacture and installation of structures should be carried out in accordance with the guidelines of GOST 23118-99 "Steel construction structures. General technical conditions" and SNiP 3.03.01-87 "Load-bearing and enclosing structures".

10. The layout plan of assembly units, as well as in section 1-1 of the BN floor beam, is shown only for one cell.

11. The drawing of the installation joint B, views G and D shows the welding sequence in the circles.