Modeling of composite/concrete interface of RC beams strengthened with composite laminates

被引：97

作者：

Ascione, L ^{[1
]}

Feo, L ^{[1
]}

机构：

[1] Univ Salerno, Dept Civil Engn, I-84084 Fisciano, SA, Italy

来源：

COMPOSITES PART B-ENGINEERING | 2000年 / 31卷 / 6-7期

关键词：

interface/interphase; composites;

D O I：

10.1016/S1359-8368(99)00063-3

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

In this paper a finite element model for predicting shear and normal stresses in the adhesive layer of plated reinforced concrete beams has been developed. The numerical results carried out agree with those obtained in previous studies by other authors. It is found that shear stresses and high concentrations of peeling forces are present at the ends of the plates when the composite beam is loaded in flexure. These concentrations can produce premature failure of the strengthened beam because of debonding of the plate or cracking of the concrete cover along the level of internal steel reinforcement. The numerical simulation captures the actual interfacial stresses and, in particular, the maximum values of shear and normal stresses. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：535 / 540

页数：6

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