Reinforcing frame for bored piles.
The grillage is a belt that unites the tips of the piles along the perimeter of the walls of the structure. Even if the superior structure of the frame, and for each rack (column) made its own well, the grillage is still necessary to perform, as it separates the tops of the piles between them and greatly increases their stability.
Scheme device grillage.
For bored piles, as a rule, a grillage is made monolithic reinforced concrete. At its core, it strongly resembles a monolithic belt, perhaps, which often requires more reinforcement (in the upper zone in the area of bearing on the piles and in the lower zone in the spans between them). The mating unit is usually made rigid, that is, reinforcement releases are forced into the body of the grillage.
In cases where a light construction of a steel profile or a wooden frame rests on the piles, the grillage can be made, respectively, steel or wooden. (more…)