PRECAST SHELLS MADE OF UNITS BENT DURING FORMING

Abstract

In construction, thin-walled reinforced concrete spatial structures are used both for unique roofs of large-span buildings and for mass buildings of the pavilion type and small architectural forms. The most serious obstacle to the widespread application of economical thin-walled reinforced concrete structures is the shortcomings of the technology used for the manufacture and installation of prefabricated shell elements. The method of bending just formed flat flexible plates to give them a curved shape is one of the most promising technological methods that allow you to abandon the use of expensive metal forms of complex curved outlines, significantly simplify all production processes. The article describes the experience of research and development of structural decisions for spatial structures of building roofs with the use of unified rhombic elements made by the method of bending a flat just formed sheet on a flexible formwork.