The authors on the basis of numerical studies have analyzed the effect of progressive destruction and temperature influence on the operation and stress-strain state of the bearing elements of the frame of hinged facade systems.

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The aim was to investigate the prospects and possibilities of using nanotechnologies and nanomateri-als in construction, particularly in concrete production. The research methodology involved a set of methods and principles of scientific cognition, as well as general and specific methods and techniques, such as comparative analysis, modelling, classification, grouping, generalization and forecasting. The authors propose a method of concrete production using a matter with a specified atomic structure. It was established that the consideration of atoms and microparticles can increase the efficiency of con-crete production. In addition, special attention is paid to a nanoparticle as the structural unit of nano-technology. Nanoparticles are capable of changing the colour of artificial coatings, increasing the wear resistance of materials and improving their resistance indicators. In innovative technologies, reinforced steel, composite reinforcement and nanocoatings are used. In addition, detailed information is provid-ed on structural composites having a ceramic, iron or polymer matrix. A particular emphasis is placed on the advantages of nanoconcrete. Nanoconcrete represents a whole group of materials that can im-part the desired characteristics to products and structures. Expanding the use of nanotechnology in construction implies the need for an interdisciplinary and multidimensional approach for further re-search and development, including such fields as civil engineering, materials science, physics and oth-er related disciplines.

The paper aims to study options for connecting belt elements from a profiled sheet, to develop a technology for manufacturing support units and to determine their load-bearing capacity by testing nodal elements with connecting sheets using electric rivets and soldering pre-rolled profiled sheets. An experimental study of nodal elements was performed in a vertical position on a test bench. Fragments of the support assembly with a seam-soldered connection and with the connection of belt elements using contact spot welding were tested. It is shown that seam-soldered joints provide the necessary strength thus being suitable as a basis for the flawless manufacture of an experimental unit. For welding connection, two options of the support unit were considered, i.e. with plastic support ribs and without ribs. The junction of profiled sheets using electric rivets is more technologically advanced than a seam-soldered joint. The conducted tests elaborated the proposed design solution and the method of manufacturing the connection of profiled sheets (support units). Tests of operability, reliability and strength of this junction with various connections were carried out.

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