Stay on the building area concerned the author’s supervision in the scope of performing the lifting sling in the hall BTG and the culvert under the heat-draft.

Generally the suspensions were performed correctly, but by this occasion there might be reminded the general rules of the selection and performing the suspensions to the cover of the hall including to the fold sheet, such elements as: installation channels, piping of the sprinkler, the hydrant system, the warm and cold water etc.:

1. the place of putting and spacing and the type of lifting slings with the cross-bars should be selected in order to:
   a) do not exceed statically or kinematical of the equivalent loading on construction of cover measured by the established in the substitute project the loading spread uniformly,
   b) do not exceed the local, accessible loadings, which result mostly from the pressure of mandrel of lifting sling to the walls of fold sheet,
   c) fulfill the requirements of the lifting slings’ spacing or bearings with the conditions of resistance and the stability of the suspended element (canal, piping or the other devices).
2. constructionaly minimize the eccentric loadings specially conveying on the construction elements of the torsion,

^{(C) Tomasz Bator, Leszek Chodor, 04-09-2007}