Stress-strain state of steel corrugated I-beams prestressed by flange drawing
https://doi.org/10.31675/1607-1859-2024-26-2-123-131
EDN: KGRKTU
Abstract
The material distribution in structures is an urgent scientific and technical problem. Corrugated and prestressed steel structures are efficient and reliable.
Purpose: The aim of this paper is to study the operation of steel I-beam with a thin corrugated wall, prestressed by flange drawing.
Methodology/approach: Finite element modeling of beams with corrugated and flat walls (models with flat wall, transversely corrugated wall, downward corrugation at an angle of inclination 20 degrees, ascending corrugation at an angle of inclination 20 degrees). The proposed method is used for prestressing the lower beam flange using negative temperature effects. Numerical experiments in LIRA-SAPR software allow to obtain the stress distribution isofields and deformation patterns. A comparative analysis of the stress-strain state.
Research findings: The normal stress distribution over flanges of corrugated beams with and without prestress under the external load has low difference. Prestress produces significant deflections of structures and the greatest deflection of the beam with ascending corrugations.
About the Authors
N. L. Tishkov
Pacific National University
Russian Federation
Russian Federation
Nikolay L. Tishkov, PhD
136, Tikhookeanskaya Str., 680035, Khabarovsk
A. S. Fomina
Pacific National University
Russian Federation
Russian Federation
Anastasia S. Fomina, Student
136, Tikhookeanskaya Str., 680035, Khabarovsk
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Supplementary files
Review
For citations:
Tishkov N.L., Fomina A.S. Stress-strain state of steel corrugated I-beams prestressed by flange drawing. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2024;26(2):123-131. (In Russ.) https://doi.org/10.31675/1607-1859-2024-26-2-123-131. EDN: KGRKTU
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