Issue |
MATEC Web Conf.
Volume 251, 2018
VI International Scientific Conference “Integration, Partnership and Innovation in Construction Science and Education” (IPICSE-2018)
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Article Number | 03016 | |
Number of page(s) | 8 | |
Section | Engineering and Smart Systems in Construction | |
DOI | https://doi.org/10.1051/matecconf/201825103016 | |
Published online | 14 December 2018 |
Optimization of flat-oval pipes and perspectives of their application in beam structures
1
Department of Project Grant Organization, Institute of Service, Tourism and Design (branch) of North Caucasus Federal University in Pyatigorsk, 357500, Pyatigorsk, St. 40 let Octyabrya, 56, Russia
2
"Construction” Department, Institute of Service, Tourism and Design (branch) of North Caucasus Federal University in Pyatigorsk, 357500, Pyatigorsk, St. 40 let Octyabrya, 56, Russia
3
"Design” Department, Institute of Service, Tourism and Design (branch) of North Caucasus Federal University in Pyatigorsk, 357500, Pyatigorsk, St. 40 let Octyabrya, 56, Russia
* Corresponding author: al_marut@mail.ru
A new technical solution for re-profiling round tubes into flat-oval ones with a ratio of 1 / 3,064 is presented, which increases their bending strength. The calculation of the optimal parameters of thin-walled sections of the flat-oval shape is given by an approximate method, the correctness of which is confirmed by testing from the standard profiles used. This calculation is repeated with respect to thin-walled sections of the oval shape. The whole diagram of changes in the design parameters of flat-oval and oval pipes is presented in the transformation of their cross-sections from vertical configurations to horizontal ones, including the transition through the outline of a circular shape. The comparative analysis of optimized cross sections of flat oval, oval and round tubes is carried out taking into account the elastic and elastic-plastic deformations of the structural material, where the length of the midline of the thin-walled section is taken as the dividing line between these deformations. The choice is substantiated in favour of flat-oval profile pipes due to their simpler shape including faces of constant curvature (flat and semi-circular), relatively low cost, lower height, greater compactness, higher resistance moment.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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