Toward Limited Durability of Load-Bearing Beams of Metal Bridge Spans
https://doi.org/10.31675/1607-1859-2024-26-5-225-235
EDN: XCIHDG
Abstract
The paper considers the limited durability as a structural property which continuously maintains operability during certain time under random loading of beam elements and proposes the definition for durability as the main criterion of failure and destruction of beam elements or beam as a whole.
Methodology: Structural analysis; cumulative model of quasi-monotonic damage accumulation and failure of beam elements.
Purpose: To develop methods to determine the durability based on damages representing a random, non-stationary loading process.
Research findings: The damage accumulation is calculated for beams. The process is considered as quasi-monotonic. Stress-strain curves are obtained, including changes in probabilistic characteristics of not only structural materials, but also loading modes from the damage growth. The durability limitations of span girders are estimated both by nominal stresses and total damage in the more dangerous section.
About the Author
А. А. Alekseev
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Аleksandr А. Alekseev, PhD, A/Professor
2, Solyanaya Sq., 634003, Tomsk
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Review
For citations:
Alekseev А.А. Toward Limited Durability of Load-Bearing Beams of Metal Bridge Spans. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2024;26(5):225–235. (In Russ.) https://doi.org/10.31675/1607-1859-2024-26-5-225-235. EDN: XCIHDG
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