THE COMPARISON OF BEHAVIOR OF AN ARCH OF ROLLED METAL THIN-SHEET PROFILES LOADED BY WIND LOAD ACCORDING TO THE STANDARDS AND LOADED BY LOAD DERIVED WITH THE HELP OFCOMPUTER MODELING

There was made a comparison in this article of rolled metal thin-sheet profiles arch's behavior features, which was loaded with standard wind load on the one hand and with load, obtained by means of computer modeling on the other hand. The research was carried out in the following sequence: first of all there was made a substitution of the metal thin-sheet profiles U-formed arch for the plain arch with an equivalent flexural rigidity, then the load of the arch with wind load in compliance with the calculating data of the wind flow in the virtual wind tunnel and finally execution of analysis and comparison of final results. The arch modeling as well as the virtual wind tunnel modeling was based on the Solid Works software package by means of the method, stated in the previous publications. The theoretical and methodological basis of the research is the Navier-Stokes equation and the equation of the condition of the fluid medium's components. The results are the differentiation of three pressure zones on the arch, depending on wind trajectory and speed, as well as the comparison of the maximal redial arch shifts under two types of wind loads.

virtual wind tunnel, arch of rolled metal thin-sheet profiles, anchorage, the Navier-Stokes equation, wind load, computer modeling, wind flow