Open AccessStudy on concrete beams under the action of steel corrosion and freeze-thaw cycles
Author(s) -
Hongming Wang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012053
Subject(s) - corrosion , materials science , rust (programming language) , bearing capacity , flexural strength , beam (structure) , structural engineering , composite material , metallurgy , engineering , computer science , programming language
In order to study the effect of rust - freeze coupling on the flexural bearing capacity of concrete beams, a rapid corrosion test, rapid freeze-thaw test and a rust - freezing coupling test were carried out for 18 model beams. Under the joint action of the corrosion of steel bars and the freeze-thaw cycle, the yield strength ratio of the test beam decreases with the increase of rust rate and freeze-thaw cycle, resulting in the decrease of its resistance to deformation. Based on the present proposed calculation formula under the action of corrosion and freeze-thaw cycles, through comparing and analyzing experimental data to establish the a new calculation model under the action of the reinforcement corrosion and the freeze-thaw cycle of flexural bearing capacity.