Annotation

The issue of the formation of a lightweight effective multilayer overlapping that quickly assembled was considered, which can be used as when constructing new buildings as well as in the reconstruction of existing structures without the use of expensive hoisting machinery and machinery. This type of overlap has a lower weight compared to the classical solid monolithic reinforced concrete due to the layer of light concrete, which additionally performs a sound-insulating function and has good thermal characteristics.

An experimental study was carried out of the bearing capacity and deformability of multi-layer girder slabs of overlap. The graphical dependences of the deformation distribution of concrete and reinforcement are constructed depending on the height of the plate section. Graphic dependencies have been constructed that characterize the change of deflection from the action of static load, which was applied with the help of a distributive traverse system. The character of the cracks in the experimental multilayer slabs was presented.

A graphical and tabular comparison of experimental results with theoretical ones was conducted. The calculation of multilayer girder slabs is based on the deformation model, which is presented in the operating normative documents. A block diagram of calculation is provided.