To the device of overlapping at garage building are applied:
1. Monolithic concrete. It stack on a factory-made steel supporting frame (there is no time economy at the expense of operations combination, trestle work are not necessary during installation); the big expense of a timbering thus is required and there is a danger of steel designs pollution (the pure covering is not put yet), adherence is provided because of dowel welding. Its reliability under the influence of own weight of overlapping is getting at the expense of steel beams lifting before concreting in certain sequence; the design is economic for small constructions under corresponding conditions.
2. Modular concrete slabs of various designs. They can be mounted simultaneously with a steel framework. They are well combined with steel designs as reduce duration of erection at the expense of console sites formation, working platforms and the further packing between them precast slabs; slabs receive from factories (quality, admissions, the piece control before installation). Adherence is provided for the account of dowel or high-strength bolts welding; lifting of steel beams creates a reliable communication under the influence of own weight of overlapping. For constant garages is carried out corresponding gearing of slabs edges and pouring of seams; for time (for example, with demountable connections of high-strength bolts) high demands are made to admissions. Reception of a smooth horizontal surface is reached by transition to the mixed system of installation. On the runs laid dry stack a continuous layer of monolithic concrete, which sometimes even gets into gear all design. The same result is given by packing of thinner asphalt layer. In both cases levelling layers blocks local roughness and acting sides.
3. The thin steel sheets allowing a making parallel installation (short term of erection, in process of sheets packing is created a working platform on all area, is possible furnish in underlaying premises). The thin steel sheet (wavy, trapezoid or corrugated) serves as a timbering and armature for the concrete layer laid from above, supposes packing and a suspension bracket of the equipment and pipelines within a thickness of overlapping, without height decrease in clear height.
4. The bearing steel flooring stacked the same as modular concrete slab, however for increase of rigidity demanding installation of additional trellised beams during concreting. The steel flooring allows to refuse beams or to lay them to perpendicularly slabs; has higher framework, however allows placing all communications within a thickness of overlapping. The area of free sites is equal to the size of two concrete slabs. For perception of horizontal wind loadings is provided the device of columns jammed in bases or frames; horizontal forces can be transferred to the bases by means of horizontal disks, leaned on rigid elements where is an addition of forces and their diversion in the basis.
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