Steel building pillars

Supporting poles on the foundation: a), b) column bases, c) details of the fastening of the anchor bolts; 1 - pole, 2 - the base of the pole, 3 - anchor rods,

The columns rest on the foundation via the column base, the structure of which depends on the cross-section of the column and the method of connecting the column with the foundation; stiff, articulated. In the picture 8.44 presents the structure of the base of the column and the methods of connection with the foundation. In order to eliminate inaccuracies in execution - dimensional deviations in the vertical direction - and to ensure proper transfer of forces from the column to the foundation footing, the columns will stop on the concrete "grout", and moreover, it anchors them to the foundation by means of an anchor.

In recent years, reinforced concrete slabs on trapezoidal sheets have been widely used in frame construction. These ceilings are readily used both because of their simplicity, and ease of execution.

Depending on the spacing of the beams and the size of the loads, different heights of corrugated sheets are used. High-wave trapezoidal sheets are used for greater loads and larger spacings of ceiling beams. The beam spacing is 1,5-3,0 m. For small spans, solid I-beams are used, for the bigger ones (do ok. 15,0 m) openwork beams, and above this span lattice girders. The space at the ceiling height is used to lead the electrical installation, ventilation and air conditioning.