In modern urban policy, the question of resettlement is becoming ever more acute urban dwellers within the city limits. This issue can be solved by high-rise buildings built using monolithic technologies, with a one-time filling of high walls ( height of 5 m and above). Along with the formwork of walls, Absolut-Stroy Company offers one of the solutions to this issue - formwork of ceilings on volumetric racks.
This design allows the use of formwork both in monolithic housing construction, in the form of ceilings and spans, and in industrial construction, in the form of formwork of bridges, tunnels, mines, etc.
Based on the technical documentation, it can be concluded that the time spent on installing and disassembling the formwork racks of floor slabs on volume racks slightly more than the time spent on installing and disassembling the formwork of the ceilings on telescopic racks. But it is more than compensated by rigidity and the reliability of the resulting design, which minimizes the human factor.
The price category of ceilings on volumetric racks is slightly higher than that of conventional ceilings on telescopic racks, and the price is for 1 sq. meter costs a little more. But this is quite justified, since in some situations using telescopic racks is not entirely justified.
Основные свойства перекрытий на объёмных стойках:
During operation of the formwork of floors on volumetric racks, it is possible to fill in floors of the type & quot; smooth surface & quot ;.
A unique feature of the formwork of floors on volumetric racks is that several vertical racks can be combined into a single assembly - a round, which in the future put on the right place.
MAX height (from the installation horizon of racks to plywood) - 12 m;
MIN height (from the installation horizon of racks to plywood) - 1.5 m;
No vertical alignment needed;
The connecting unit provides a high-quality and durable connection of the crossbar and the vertical stand at an angle of 90 °. It is this connection that gives the entire structure such rigidity and makes formwork on volumetric racks unique in its kind;
A design feature is that two people can participate in the assembly process, and later, at the end of the initial stage of assembly, one person at all;
Another useful function of formwork floors on volumetric racks is that it can also be used as wedge scaffolding (not frame);
The average turnover of elements - 100 cycles;
The maximum turnover of elements - 200 cycles;
Максимальная допустимая нагрузка (кгс/м2) Максимальная допустимая толщина перекрытия (см)
|Distance between racks (cm)||Methods of pouring concrete mix Maximum permissible load (kgf / sq.m.)|
|Concrete mixture is used by concrete pumps, to the thickness of the floor||The supply of concrete mix from tubs with a capacity of 0.8 cubic meters is used, to the thickness of the floor|
|200х250||540||20||not allowed||not allowed||20|
It is worth considering that the estimated concrete density is not more than 2500 kg/m3, and the density of reinforcement is not more than 150 kg / m3.
The basis of formwork on volumetric racks is volumetric racks. For fastening structural elements, special locks are used. The most widely used type of wedge lock, which can withstand heavy loads and gives the structure the greatest strength. Due to the design features of volumetric racks for formwork floors on volumetric racks, it can be placed around the perimeter. Screw stands make it possible to easily change the height of the formwork. It is easy to mount, dismantle and transport such formwork to other construction sites or a warehouse.