MODELING FREEZE AND THAW DAMAGE IN CONCRETE DECKS USING DAMAGE MECHANICS

被引：0

作者：

Saboori, Ashkan ^{[1
]}

Yazdani, Siamak ^{[1
]}

Reberg, Andrew ^{[2
]}

Yang, Mijia ^{[1
]}

Tolliver, Denver ^{[3
]}

Mamani, Sara ^{[1
]}

机构：

[1] North Dakota State Univ, Civil & Environm Engn Dept, Fargo, ND 58105 USA

[2] Black & Veatch Corp, Bloomington, MN USA

[3] North Dakota State Univ, Upper Great Plains Transportat Inst, Fargo, ND USA

来源：

SUSTAINABLE SOLUTIONS IN STRUCTURAL ENGINEERING AND CONSTRUCTION | 2014年

关键词：

Bounding surface; Stress-strain curves; Anisotropic damage;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Research has documented that freeze-thaw cycles (FTCs) deteriorate mechanical properties of concrete such as strength and stiffness. This paper presents a general approach to model the changes in these mechanical properties. It also presents a generalized bounding surface approach, where limit surface is allowed to collapse inward and form a new failure surface (residual strength) corresponding to the number of FTCs. Within this formulation, softening equations for strength reduction and the increase in ultimate strain of concrete under FTCs are proposed. Stress-strain curves are obtained and the anisotropic degradation in mechanical properties is captured. The results show a good correlation with experimental data available in the literature.

引用

页码：251 / 256

页数：6

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