A Fundamental Study On Deterioration
Of The Existing RC Beam By Chemical And
Mechanical Damage
Author(s)
Y. Sonoda, N. Murato & H. Hikosaka
Abstract
Recently, the maintenance problem of existing RC structures has increased in
Japan, and it is important to estimate the total life cycle cost of structure, which
includes not only construction cost but also maintenance cost. In order to
accomplish this purpose, it is necessary to evaluate the durability and predict the
deterioration of the existing structures accurately. In this study, the damage
evolution processes caused by chemical and mechanical effects are considered
by using continuum damage mechanics. Within the framework of this method,
chemical damage due to the corrosion of the steel bar is considered, and the
coupling effect between chemical damage and mechanical damage is calculated
by introducing two independent scalar damage variables into the constitutive
equation. To calculate the ch
Keywords
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