Feasibility of iron-based shape memory alloy strips for shear strengthening of damaged RC beams promoting the formation of plastic hinges

被引：4

作者：

Traver, Celia ^{[1
]}

Ruiz-Pinilla, Joaquin G. ^{[2
]}

Monserrrat, Andrea ^{[1
]}

Montoya-Coronado, Luis A. ^{[2
]}

Miguel, Pedro F. ^{[1
]}

Ribas, Carlos ^{[2
]}

Cladera, Antoni ^{[2
]}

Bonet, Jose L. ^{[1
]}

机构：

[1] Univ Politecn Valencia, ICITECH, Valencia 46022, Spain

[2] Univ Balearic Isl, Dept Ind Engn & Construct, Palma De Mallorca 07122, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 401卷

关键词：

Iron-based shape memory alloy; Shear strength; Damaged reinforced concrete beams; Plastic hinge; External strips; Cantilever beam; Continuous beam; Rotation capacity; Prestressing; Experimental study; CIVIL ENGINEERING STRUCTURES; TRANSVERSE REINFORCEMENT; CONCRETE STRUCTURES; MEMBERS; CAPACITY; MODEL; BEHAVIOR; PERFORMANCE;

D O I：

10.1016/j.conbuildmat.2023.132906

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This research focuses on the proof of concept of the feasibility of iron-based shape memory alloys strips (Fe-SMA) to strengthen damaged structures by promoting the yielding of longitudinal reinforcement. For this purpose, an experimental campaign on real-scale reinforced concrete beams previously damaged on shear and retested after being strengthened was carried out. The strengthening technique consists of external Fe-SMA strips wrapping the beams. The results show a very significant increase in both shear strength and ductility. In addition, shear predictions were calculated and compared by several design models. This study highlights the potentialities of Fe-SMA as a strengthening technique for damaged beams on shear.

引用

页数：18

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