The roofing of an industrial building with the cantilever footing beam system

The paper is focused on the roofing of an industrial building resting on the cantilever beam system consisting of two types of beams. The first beams are mounted on paired columns(two columns with 3.6 meter spacing). They are 6.4 meters long and have cantilevers of 1.4 mat both sides. The second beams rest on cantilevers of the first beams and act as a support of sloping beams with the span of 24 m for 6 meter ribbed plates. The 24 meter step of transverse coordinate axes of the building is provided. The authors also consider the second option of covering, where adjoining footing beams are joined together on the top by external reinforcement bars, increasing their strength, rigidity and its cracking resistance. The limit state analysis of all beams is conducted. The paper presents the engineering and economic comparison of the suggested options of the building roofing with 12 meter column spacing and ribbed plates 6 m long.