Safety factor calibration for bridge concrete girders

被引：2

作者：

Silva, Rita C. ^{[1
]}

Cremona, Christian ^{[2
]}

机构：

[1] Univ Brasilia, Fac UnB Gama, BR-72405610 Gama, Brazil

[2] Minist Ecol Energy Sustainable Dev & Sea, Directorate Res & Innovat, F-92055 Tour Pascal, La Defense, France

来源：

STRUCTURAL ENGINEERING AND MECHANICS | 2014年 / 49卷 / 02期

关键词：

calibration; corrosion; reinforced concrete; reliability; safety factors; RELIABILITY; CORROSION; CRACKING;

D O I：

10.12989/sem.2014.49.2.163

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Safety factors proposed in codes CEB, B. A. E. L 91 and EUROCODE 1 cover a great number of uncertainties; making them inadequate for the assessment of existing structures. Suitable safety factors are established using a probabilistic assessment, once real dimensions, materials strength and existing structures deterioration mechanisms are taken into account. This paper presents a calibration method for safety factors using a typical set of RC bridges in France. It considers the principal stages of corrosion provoked by CO2 and Cl- penetration and threshold indexes (beta(0)) for existing structures. Reliability indexes are determined by the FORM method in the calibration method.

引用

页码：163 / 182

页数：20

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