INSTALLATION OF REINFORCED CONCRETE AND CONCRETE STRUCTURES 6. Installation of ventilation units, volume blocks of elevator shafts and sanitary cabins

When installing ventilation units, it is necessary to monitor the alignment of the channels and the thoroughness of filling the horizontal joints with the solution. Alignment of ventilation units should be performed by combining the axes of two mutually perpendicular faces of the installed units in the lower section level with the risks of the axes of the lower unit. With respect to the vertical plane, the blocks should be installed by aligning the planes of two mutually perpendicular faces. The joints of the ventilation ducts of the blocks should be thoroughly cleaned of the solution and to prevent it and other foreign objects from entering the ducts.
Volumetric blocks of elevator shafts should be installed, as a rule, with brackets installed in them for fixing guide booths and counterweights. The bottom of the bulk blocks must be installed according to the orientation risks imposed on the overlap from the center axes and corresponding to the design position of two mutually perpendicular walls of the block (front and one of the side). With respect to the vertical plane, the blocks should be installed by aligning the faces of two mutually perpendicular walls of the block.
Sanitary cabins should be installed on gaskets. The alignment of the bottom and the verticality of the booths should be done according to section 3.30 When installing the cabins, the sewer and water risers must be carefully combined with the corresponding risers of the below-located cabins. The holes in the floor panels for the passage of cabin risers after installing the cabs, installing the risers and conducting hydraulic tests should be carefully sealed with mortar