Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete Beam
Crack expansion of concrete is the initial damage stage of structures, which may cause greater damage to structures subject to long-term loads or under extreme conditions. In recent years, the application of intelligent materials to crack self-repair has become a hotspot among researchers. In order...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Hindawi Limited
2013-01-01
|
Series: | Mathematical Problems in Engineering |
Online Access: | http://dx.doi.org/10.1155/2013/138162 |
id |
doaj-3cc15acbdf444fb48df00436ee29f85b |
---|---|
record_format |
Article |
spelling |
doaj-3cc15acbdf444fb48df00436ee29f85b2020-11-25T00:50:53ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472013-01-01201310.1155/2013/138162138162Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete BeamLi Sun0Dezhi Liang1Qianqian Gao2Jianhong Zhou3School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaCrack expansion of concrete is the initial damage stage of structures, which may cause greater damage to structures subject to long-term loads or under extreme conditions. In recent years, the application of intelligent materials to crack self-repair has become a hotspot among researchers. In order to study the influence of factors on the self-repair capability of shape memory alloy (SMA) wire concrete beam, both theoretical and experimental methods were employed for analysis. For the convenience of experiment, composite materials (epoxy cement mortar and silicone polymer clay) instead of concrete were used. The SMA wires were externally installed on and internally embedded in epoxy resin cement mortar beams and silicone polymer clay beams. Comparison of crack repair situation between two installation methods turns out that both methods possess their own advantages and disadvantages and should be employed according to the actual situation. The influence of unbonded length on the self-repair capability of embedded type SMA wire beams and the necessary minimum unbonded length to achieve self-repair function were studied. The results state clearly that the longer the unbonded length is, the better the crack repair situation is.http://dx.doi.org/10.1155/2013/138162 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Li Sun Dezhi Liang Qianqian Gao Jianhong Zhou |
spellingShingle |
Li Sun Dezhi Liang Qianqian Gao Jianhong Zhou Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete Beam Mathematical Problems in Engineering |
author_facet |
Li Sun Dezhi Liang Qianqian Gao Jianhong Zhou |
author_sort |
Li Sun |
title |
Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete Beam |
title_short |
Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete Beam |
title_full |
Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete Beam |
title_fullStr |
Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete Beam |
title_full_unstemmed |
Analysis on Factors Affecting the Self-Repair Capability of SMA Wire Concrete Beam |
title_sort |
analysis on factors affecting the self-repair capability of sma wire concrete beam |
publisher |
Hindawi Limited |
series |
Mathematical Problems in Engineering |
issn |
1024-123X 1563-5147 |
publishDate |
2013-01-01 |
description |
Crack expansion of concrete is the initial damage stage of structures, which may cause greater damage to structures subject to long-term loads or under extreme conditions. In recent years, the application of intelligent materials to crack self-repair has become a hotspot among researchers. In order to study the influence of factors on the self-repair capability of shape memory alloy (SMA) wire concrete beam, both theoretical and experimental methods were employed for analysis. For the convenience of experiment, composite materials (epoxy cement mortar and silicone polymer clay) instead of concrete were used. The SMA wires were externally installed on and internally embedded in epoxy resin cement mortar beams and silicone polymer clay beams. Comparison of crack repair situation between two installation methods turns out that both methods possess their own advantages and disadvantages and should be employed according to the actual situation. The influence of unbonded length on the self-repair capability of embedded type SMA wire beams and the necessary minimum unbonded length to achieve self-repair function were studied. The results state clearly that the longer the unbonded length is, the better the crack repair situation is. |
url |
http://dx.doi.org/10.1155/2013/138162 |
work_keys_str_mv |
AT lisun analysisonfactorsaffectingtheselfrepaircapabilityofsmawireconcretebeam AT dezhiliang analysisonfactorsaffectingtheselfrepaircapabilityofsmawireconcretebeam AT qianqiangao analysisonfactorsaffectingtheselfrepaircapabilityofsmawireconcretebeam AT jianhongzhou analysisonfactorsaffectingtheselfrepaircapabilityofsmawireconcretebeam |
_version_ |
1725246063470706688 |