Size effect in concrete beams

被引：95

作者：

Karihaloo, BL ^{[1
]}

Abdalla, HM ^{[1
]}

Xiao, QZ ^{[1
]}

机构：

[1] Cardiff Univ, Civil Engn Div, Sch Engn, Cardiff CF24 0YF, S Glam, Wales

来源：

ENGINEERING FRACTURE MECHANICS | 2003年 / 70卷 / 7-8期

基金：

英国工程与自然科学研究理事会;

关键词：

fictitious crack model; fracture process zone; size effect; three point bend beam;

D O I：

10.1016/S0013-7944(02)00161-3

中图分类号：

O3 [力学];

学科分类号：

08 [工学]; 0801 [力学];

摘要：

This paper will report on an experimental investigation into the size effect in the strength of hardened cement paste (nominal compressive strength 40 MPa) and high strength concrete (nominal compressive strength 110 MPa) as measured in three point bending. The aim of the investigation is to judge the range of applicability of the various size effect formulae available in the literature. With this aim in mind, the failure loads have been analysed according to the size effect formulae of Bazant and of Karihaloo for the notched beams and according to those of Bazant and of Carpinteri for the unnotched beams. The results of this analysis will be presented. Improvements to Karihaloo's size effect formula will also be proposed. (C) 2602 Elsevier Science Ltd. All rights reserved.

引用

页码：979 / 993

页数：15

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