| Popis: |
In the first part of the article, prefabricated metal structures with a corrugated wall are considered. The urgency of their development, new improvements to existing beam structures and their application is substantiated. Proposed beams which made of a composite I-beam, but with a split section of individual elements. Particular attention is paid to collapsible products and the possibility of their delivery to the installation site in “unrolled” form, assembly and installation at the construction site, dismantling (if necessary) and reuse. Fastening between themselves is carried out on self-tapping screws or bolts, which allows assembly at the installation site. To increase the rigidity of the profiled sheet wall without significant changes in the geometric parameters, including the wall thickness, it will be sufficient to use additional profiled sheet layers for strengthening. This article discusses the bearing capacity of such beams. The software package ANSYS was used. The geometric model of the beam has been created. To check the functionality of the program, an initial calculation was made. The calculation of ten options of the beam has been made. The first three options consider three types of profiled sheet used as a wall of I-beam. Based on the calculation results, the second version of the profiled sheet was selected for the next four calculation options for different corrugation heights and three calculation options for different spans. The results of calculating all 10 options are summarized in a single table for ease of analysis. |
