Simulation of flexural performance of layered ECC-concrete composite beam with fracture mechanics model

被引：45

作者：

Zhang, Jun ^{[1
]}

Wang, Zhenbo ^{[1
]}

Ju, Xianchun ^{[1
]}

Shi, Zhenjie ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Civil Engn, Key Lab Struct Safety & Durabil, Beijing 100084, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2014年 / 131卷

基金：

美国国家科学基金会;

关键词：

Flexure; Fiber reinforced cementitious composites; Concrete; Model; ENGINEERED CEMENTITIOUS COMPOSITE; TENSION; DESIGN;

D O I：

10.1016/j.engfracmech.2014.08.016

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Fracture mechanics based flexural model for layered engineered cementitious composite (ECC)-concrete beam is proposed. With the model, the flexural behavior of the layered beam is simulated. The model results show that flexural strength improvement depends on the strength of concrete and ECC, as well as the thickness of ECC. As the ECC thickness reaches a critical value, such as 30% of the beam height, the member ductility is found to show a very rapid increase. The flexural performance of layered ECC-concrete beams was investigated also experimentally. Good agreement between model and test results is found. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：419 / 438

页数：20

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