Response of ultra-high performance fiber reinforced concrete (UHPFRC) to impact and static loading

被引：283

作者：

Habel, Katrin ^{[1
]}

Gauvreau, Paul ^{[2
]}

机构：

[1] AECOM Canada, Edmonton, AB T6E 2G3, Canada

[2] Univ Toronto, Dept Civil Engn, Toronto, ON, Canada

来源：

CEMENT & CONCRETE COMPOSITES | 2008年 / 30卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Ultra-high performance fiber reinforced concrete (UHPFRC); Impact tests; Static tests; High strain rates; Analytical modeling; Mass-spring models;

D O I：

10.1016/j.cemconcomp.2008.09.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents an experimental and analytical study of rate-dependent ultra-high performance fiber reinforced concrete (UHPFRC) behavior. UHPFRC three- and four-point bending response was determined on plates subjected to quasi-static loading. Drop weight tests were performed in order to apply dynamic three-point-bending loading to UHPFRC plates. In addition, uniaxial tensile tests were performed at different strain rates. A cross-sectional bending model related the uniaxial tensile behavior to the bending response with good agreement. The equivalent static response of the plate specimens in the drop weight tests was successfully determined with nonlinear mass-spring models. The results of this study show a significantly increased strength and fracture energy of the dynamically loaded plates when compared to quasi-static loading and confirm the validity of the analytical modeling. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：938 / 946

页数：9

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