Methods of Eperimental Studies of the Anchor Support U220+9 with Imperfections under the Action of Static Loads
Abstract: The article presents the method of testing the U220+9 anchor-angle support with imperfections at the DNAСА test site. To compare the VAT indicators of the support elements, two load tests of the support were carried out according to similar schemes. During the first test, the support was loaded without imperfections. During the second load test, the situation of the formation of a general curvature of the grid elements from the plane of the support face was simulated. Tests with imperfections were carried out in two stages. At the first stage, the behavior of individual elements and support units in the process of defect formation in the form of a general curvature of the rod from the plane of the structure is considered. At the second stage, the response of the studied structure to the defective rod was analyzed. The above test procedure allowed us to determine: the locations of strain-measuring studies to analyze the response of the structure under study to a rod with extreme deformation; the load-bearing capacity, according to the criteria of strength and stability, corresponding to the first group of limit states; operational suitability of the structure as a whole when working with imperfections.
Keywords: anchor-angular support, polygon, technique, static tests, curvature, work of structures with imperfections, strain-measuring studies.
Pages: 165-176.
For citation: Smirnova, N. S.; Mironov, A. N. Methods of Eperimental Studies of the Anchor Support U220+9 with Imperfections under the Action of Static Loads. – Text : electronic. – In: Metal Constructions. – 2020. – Vol. 26, N 4. – Р. 165-176. – URL: https://donnasa.ru/publish_house/journals/mk/2020-4/02_smirnova_mironov.pdf (date of access: 24.11.2024). – ISSN 1993-3517.
Vol. 26, N 4 (2020)
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture