Engineering failure analysis of corroded RC beams in flexure and shear

被引：21

作者：

Campione, G. ^{[1
]}

Cannella, F. ^{[1
]}

机构：

[1] Univ Palermo, Dipartimento Ingn Civile Ambientale & Aerosp & Ma, Viale Sci, I-90128 Palermo, Italy

来源：

ENGINEERING FAILURE ANALYSIS | 2018年 / 86卷

关键词：

Shear-moment interaction; Corrosion; Bond; Pitting; Load-deflection response;

D O I：

10.1016/j.engfailanal.2017.12.015

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In the present paper, a simple model to reproduce the load-deflection response of corroded beams failing in flexure and shear is presented and discussed. Effects of diffused and pitting corrosion on steel bars, compressive concrete strength degradation and concrete bond strength degradation due to rust formation are included in the model. Engineering approach based on limit state theory was here adopted to predict the peak and the residual flexural and shear strength of corroded beams with corresponding deflections and ductility estimation. Calculation of deflection at cracking taking into account of rust formation and deflection at yielding and the ultimate state taking into account also of slippage of steel bars due to rust formation were made. The model was also widely verified against tests available in the literature referred to crack opening, pit depth, attach corrosion penetration, load-deflection curves.

引用

页码：100 / 114

页数：15

共 28 条

[1] Effect of degree of corrosion on the properties of reinforcing steel bars [J].