A practical calculation method for the normal section of corrosion-damaged columns under transverse impact
https://doi.org/10.33979/2073-7416-2025-121-5-57-72
Abstract
The issues of the robustness of load-bearing structures under technogenic emergency impacts are currently becoming increasingly relevant in both domestic and global structural engineering. This is particularly true for compressed and compression-bent elements, including building columns. Buildings with a significant service life accumulate corrosion damage, which leads to local degradation of the mechanical properties of materials. This can substantially affect the ultimate load-bearing capacity and overall robustness of structural systems under dynamic loads. An approach is being developed to determine the strength of normal sections for eccentrically compressed columns with a small initial eccentricity under transverse impact. Corrosion is considered as a localized "spot" defect, within which the mechanical properties of both concrete and reinforcement may be degraded. The degree of degradation of the materials' mechanical properties is determined from experimental data obtained using accelerated corrosion schemes. Depending on the degree of corrosion, the effect of confinement on concrete deformations in the direction perpendicular to compression is taken into account. A verification comparison of the developed methodology with experimental data from dynamic tests of columns under transverse impact is provided. A calculation example for a corrosion-damaged column is considered.
About the Authors
A. V. Alekseytsev
National Research Moscow State University of Civil Engineering
Russian Federation
Russian Federation
Alekseytsev Anatoliy V., Doctor of Engineering, Prof. of Department "Reinforced concrete and stone structures"
Moscow
Ph.: 8(495)287-49-14 доб. 3059
K. V. Yurusov
National Research Moscow State University of Civil Engineering
Russian Federation
Russian Federation
Yurusov Konstantin V., post-graduate student of department "Reinforced concrete and stone structures"
Moscow
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Review
For citations:
Alekseytsev A.V., Yurusov K.V. A practical calculation method for the normal section of corrosion-damaged columns under transverse impact. Building and Reconstruction. 2025;(5):57-72. (In Russ.) https://doi.org/10.33979/2073-7416-2025-121-5-57-72
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