Bending crack behaviour of plain concrete beams externally reinforced with TRC

被引：15

作者：

Verbruggen, Svetlana ^{[1
]}

Tysmans, Tine ^{[1
]}

Wastiels, Jan ^{[1
]}

机构：

[1] Vrije Univ Brussel, Dept Mech Mat & Construct, Pl Laan 2, B-1050 Brussels, Belgium

来源：

MATERIALS AND STRUCTURES | 2016年 / 49卷 / 12期

关键词：

External strengthening; Textile reinforced cement; Crack pattern; Digital image correlation (DIC); Bending; Concrete beam; RC BEAMS; HYBRID SOLUTIONS; BOND; COMPOSITES; MORTAR; FRP;

D O I：

10.1617/s11527-016-0861-1

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents the experimental study of concrete beams in bending, externally strengthened with Textile Reinforced Cementitious materials (TRC) with varying contact area with the concrete. In order to study the pure influence of the TRC on the concrete substrate, only non-internally-reinforced concrete beams are considered. The crack pattern evolution is monitored with Digital Image Correlation, and the influence of the contact width between the concrete substrate and the external reinforcement is investigated. The results show that the TRC reinforcement has an important crack bridging capacity, and consequently that its application over the full beam width is beneficial for the loadbearing capacity and the limitation of the crack widths of the concrete beam.

引用

页码：5303 / 5314

页数：12

共 39 条

[31]

Sneed LH, 2014, ACI MATER J, V111, P569

[32] Mineral-based bonding of carbon FRP to strengthen concrete structures [J].