Vihot S. Strength and deformability metal composite structures based on sustainable design

The thesis is devoted to improving the calculation methodology of stress-deformation state regulation of metal trussing static indefinite combined steel-concrete constructions. During searching for rational project, the problem of lowest mass systems with given geometry and rods material was considered. The calculating problem of the system stress-deformation state regulation is reduced to the solution of static equation system and i efforts for structures in a deformed state. In the thesis it is developed the method, algorithm and software to ensure SNKK for stress-deformation state regulation in the elements of metal trussing static indefinite combined constructions based on rational design through incremental changes in their geometric schemes, elastic properties and external loading. Based on the algorithm using mathematical modeling of carrying capacity of trussing metal elements of SICS, defined the influence of design scheme, the geometrical and mechanical characteristics, and mode of application of the load on the stress-deformation state of the system elements. During theoretical studies established the basic dependencies for selection of physical and mechanical properties and geometrical parameters trussing combined statically indefinite structures to achieve uniform distribution moments and stress.