Comparing two types of combined arch-cable systems operation

The construction of public buildings from a metal frame is always associated with the search for rational constructive solution that meets not only dependability requirements, safety, but also architectural and design solutions. Often, to problem rationalization roof in use arched combined systems, since such systems have number advantages over simple arches: survivability higher than ones, possibility creating complex, architecturally expressive spatial structures, lower material consumption, high load-carrying ability relatively low weight, etc. aim research find two arch-cable (Hud type system Radial system) by comparing terms minimum internal forces, displacements intensity at different ratios arch boom span. solved nonlinear formulation. Based on calculation results Lira SAPR 2020 software, most unfavorable loads combinations were determined, deformation schemes displacements, moments forces obtained, sections arches ties selected. From ten structures types considered span, Hub ratio span f/L = 1/3 1/4 showed best result efficient operation intensity. Now, there are researches individual all main been studied. In field many unsolved problems: conducting numerical natural experiments identify actual developing recommendations issue ensuring stability plane, study resistance progressive collapse.