Shear strengthening of un-reinforced concrete masonry walls with fabric-reinforced-cementitious-matrix

被引：99
|
作者：
Babaeidarabad, Saman [1 ]
Arboleda, Diana [1 ]
Loreto, Giovanni [1 ]
Nanni, Antonio [1 ]
机构：
[1] Univ Miami, Dept Civil Architectural & Environm Engn, Miami, FL 33146 USA
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 65卷
基金：
美国国家科学基金会;
关键词：
Concrete URM; Fabric-reinforced-cementitious matrix; Retrofitting; Shear; Strengthening; URM WALLS; INPLANE BEHAVIOR; MORTAR TRM; FRP; CAPACITY;
D O I：
10.1016/j.conbuildmat.2014.04.116
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper, the in-plane behavior of un-reinforced concrete masonry walls externally strengthened with a fabric-reinforced cementitious matrix (FRCM) system is investigated. The experimental program consists of testing nine un-reinforced concrete masonry walls strengthened on both sides with two different FRCM schemes (one and four reinforcement fabrics). The analytical model as per ACI 549-13 is used to predict the shear capacity of the strengthened walls. The effects of design limitations in the approach proposed by ACI 549-13 are also discussed. Finally, experimental data from other research programs using fiber-reinforced polymer (FRP) composites are presented to demonstrate that when normalized shear capacity is related to a calibrated reinforcement ratio, the two overlay strengthening technologies match well. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：243 / 253
页数：11
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