Strength and stability of composite concrete and pipe-concrete structures under static load
https://doi.org/10.31675/1607-1859-2023-25-2-141-153
Abstract
The existing regulatory framework and imperfect calculation methods hinder the widespread use of pipe-concrete structures, which have great potential for industrial and civil facilities requiring small cross-sections of load-bearing elements. In order to solve this problem, a series of experiments is conducted to study the behavior of various combinations of steel and concrete materials under static load. Stress-strain state of composite and pipeconcrete structures is investigated. The analysis is given to the bearing capacity of test specimens. The critical load of specimen fracture is calculated, the bearing capacity loss and fracture are determined, deformation diagrams are suggested herein. The comparative analysis of bearing capacity of test specimens is conducted.
The analysis of experimental investigations shows the non-linear increase of bearing capacity during the joint operation of steel shell and reinforced concrete core of the pipe-concrete element, and advantages of pipe-concrete structures over conventional structures.
Supporting agencies: This work was carried out within the government contract Nо. 0030- 2021-0025 of the Ministry of Education and Science of the Russian Federation and financially supported by Grant N 20-07-00914 from the Russian Foundation for Basic Research.
About the Authors
V. I. Erofeev
Mechanical Engineering Research Institute RAS, Branch of the Institute of Applied Physics RAS
Russian Federation
Russian Federation
Vladimir I. Erofeev, DSc, Director
85, Belinsky Str., 603024, Nizhny Novgorod, Russia
P. A. Khazov
Nizhny Novgorod State University of Architecture and Civil Engineering
Russian Federation
Russian Federation
Pavel A. Khazov, PhD, A/Professor
65, Il'inskaya Str., 603950, Nizhny Novgorod, Russia
A. K. Sitnikova
Nizhny Novgorod State University of Architecture and Civil Engineering
Russian Federation
Russian Federation
Anna K. Sitnikova, Student
65, Il'inskaya Str., 603950, Nizhny Novgorod, Russia
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Review
For citations:
Erofeev V.I., Khazov P.A., Sitnikova A.K. Strength and stability of composite concrete and pipe-concrete structures under static load. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2023;25(2):141-153. (In Russ.) https://doi.org/10.31675/1607-1859-2023-25-2-141-153
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