The statistical evaluation of design methods of the load-carrying capacity of flexural reinforced concrete elements strengthened with FRP

被引：21

作者：

Skuturna, T. ^{[1
]}

Valivonis, J. ^{[1
]}

机构：

[1] Vilnius Gediminas Tech Univ, Dept Reinforced Concrete & Masonry Struct, LT-10223 Vilnius, Lithuania

来源：

ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING | 2015年 / 15卷 / 01期

关键词：

Reinforced concrete; Strengthening; FRP; Statistical methods; SHEAR-STRESS CONCENTRATION; RC BEAMS; CFRP-SHEETS; BOND BEHAVIOR; POLYMER; FAILURE; PLATES; COMPOSITES; SYSTEMS; MEMBERS;

D O I：

10.1016/j.acme.2014.04.005

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This article presents a statistical analysis of the design methods for calculating the loadcarrying capacity of reinforced concrete elements in flexure strengthened with external FRP reinforcement. To perform calculations a database of experimental research has been created. Calculations of the load-carrying capacity were performed following the ACI440.2R-08, fib bulletin 14, TR55 recommendations. Distribution of experimental and theoretical results was determined on the basis of Wilk-Shapiro test. The evaluation of design methods was done by testing the statistical hypotheses on the difference of the means of the ratio between the experimental and theoretical results. Confidence intervals of the ratios of the experimental and calculated load carrying capacity were also calculated. In order to assess the accuracy of the design methods it is suggested to calculate the coefficient of confidence. (C) 2014 Politechnika Wroclawska. Published by Elsevier Urban & Partner Sp. z o.o. All rights reserved.

引用

页码：214 / 222

页数：9

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