Method for the construction of special firms in civil works. (Machine-translation by Google Translate, not legally binding)

摘要

Procedure for construction of special firms. On a formwork, the round armours are available on which the spacers (5) which have to support the tubes, that are placed parallels and at a certain distance between them, and subjects with straps (6) are available. The concrete is brought which, when shaving, form a compression layer in the upper zone, and another of traction by the lower zone of the tubes. The tubes repart the efforts throughout their length and get a weight value for a very small surface unit. (Machine-translation by Google Translate, not legally binding)