Detection of damage due to corrosion in prestressed RC beams by static and dynamic tests

被引：32

作者：

Capozucca, Roberto ^{[1
]}

机构：

[1] Univ Politecn Marche, Dept DACS, Struct Sect, I-60100 Ancona, Italy

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2008年 / 22卷 / 05期

关键词：

pre-stressed RC beams; damage; corrosion; static and dynamic tests;

D O I：

10.1016/j.conbuildmat.2007.01.025

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, the behaviour of pre-stressed RC beams with compressive concrete subjected to damage due to reinforcement corrosion has been experimentally investigated. The experimental static and dynamic analysis is described. The results of static bending tests show that the corrosion leads to an increase of curvature for prestressed RC section, a decrease of stiffness and, as evident, a non linear behaviour of damaged beam under low service loads. Dynamic tests allow to record variations of frequency response both for undamaged and damaged beams at different modes of vibration. Finally, a damage coefficient has been evaluated for damaged beams. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：738 / 746

页数：9

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