Analysis of cracking moment and immediate deflection in FRP rebars reinforced concrete beams

被引：1

作者：

Liu, Shunfeng ^{[1
]}

Hou, Muyi ^{[1
]}

Liu, Xiao ^{[1
]}

Wang, Ruheng ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, Sch Civil Engn & Architecture, Mianyang 621010, Peoples R China

来源：

CONSTRUCTION AND URBAN PLANNING, PTS 1-4 | 2013年 / 671-674卷

关键词：

FRP rebars; Concrete beams; Cracking moment; Immediate deflection; BARS;

D O I：

10.4028/www.scientific.net/AMR.671-674.618

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Fiber reinforced polymer rebars have advantages of light weight, high tensile strength and excellent corrosion resistance. However, researches showed that [1-2], the low elastic modulus of FRP rebar resulting in a larger deflection than steel reinforced concrete beam in equivalent condition. Therefore, it is crucial to control the deflections in serviceability limit states. Three GFRP reinforced concrete beams were tested with four-point bending, deducing the cracking moment formula of the FRP reinforced beam. Then, Bischoff model is adopted to calculate the deflection, and reaching a good agreement with the experimental results. We recommend Bischoff model to evaluate the immediate deflections.

引用

页码：618 / 621

页数：4