Reliability based assessment of prestressed concrete structures subject to creep - Application to a bridge

被引：0

作者：

Raphael, W

Mohamed, A

Lemaire, M

Favre, JL

Calgaro, JA

Peyrac, P

机构：

来源：

APPLICATIONS OF STATISTICS AND PROBABILITY IN CIVIL ENGINEERING, VOLS 1 AND 2 | 2003年

关键词：

reliability; creep; prestressed concrete; bridges; experimental data; mechanical-reliability coupling;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this work, a large database has been constituted for creep testing in many research centers in Europe. At first, a comparison is performed between the database experimental results and the design codes of practice: BPEL, CEB 78, CEB 90, EUROCODE 2 and ACI. For most of these codes, the creep deformation is, more or less, underestimated. In France, the vertical displacement measurements at the cantilever free ends of a bridge have shown unexpected excessive deformations. In order to understand the possible reasons for this phenomenon, a coupling between the finite element tool ST1 and the reliability software PHIMECA is applied to analyze the reliability of the bridge. It shows the role of creep parameter variability and hence to justify the gap between predicted and observed creep deformations. In this reliability assessment, the EUROCODE 2 gives the best results compared with other codes.

引用

页码：1173 / 1178

页数：6