Final Qualification Work Industrial Building

The single-story industrial building, rectangular in plan and measuring 72 x 144 m, consists of two 36-meter spans with a 12-meter column spacing along the outer and inner axes. The building's height is 16.8 meters along the outer rows of columns and 21.3 meters along the middle row of columns. The end columns of the steel frame are offset from the transverse alignment axes inward by 500 mm. The building's load-bearing structures are the metal frame structures (columns and trusses).

Spatial rigidity is ensured: in the horizontal plane, by the operation of the floors as a fixed diaphragm and the installation of ties; in the vertical plane, by the installation of vertical ties.

The truss is a continuous (lattice) load-bearing structure formed from individual bars. The truss elements—the upper and lower chords, the posts, and the diagonals—are made of rolled angles in the form of paired bars. The rods are connected at the joints by welding using gussets (gussets) made of sheet steel placed between the angles. When rigidly connecting the truss to the column, the column height is increased by 3150 mm. The lower support node of the truss rests on a table welded to the column and is connected to it with bolts. The upper support node of the truss is first bolted to the column, and then the trusses and columns are connected at the top with welded plates.

We use lattice (through) steel columns of variable cross-section. The upper part of all columns is a solid I-beam; the lower lattice part consists of two branches connected by a lattice of rolled angles, which are welded to the branch flanges. The columns support the loads from the roof, wall enclosure, and cranes. Therefore, a split column is economical, as dividing the loads transmitted from the roof and cranes into two branches allows for the most efficient use of the material.

The column elements are connected by welds.

The upper part of the column is connected to the lower welded cross-member.

The column bases are separate (on each branch).

The columns are installed with their bases on steel slabs, pre-attached to the foundations with bolts and cement mortar, carefully aligned with the level and axes. The upper surface of the slabs is planed, and the lower ends of the columns are milled.

The overhead crane runway beams are supported on the column ledges.

The overhead crane runway beams are welded solid I-beams, operating in a split configuration.

The beams are supported on the columns through end support ribs and secured to them with bolts and planks. The beams are connected to each other with bolts passed through the support ribs.

Pile foundations with monolithic grillages for the pile clusters are designed for the columns. A 100 mm concrete slab is poured under the grillage. The column is rigidly connected to the foundation using anchor bolts. The column's rigid base has four anchor bolts.