APPLICATION OF THE MODIFIED MAGNETOELASTIC METHOD AND AN ANALYSIS OF THE MAGNETIC FIELD

被引：2

作者：

Klier, Tomas ^{[1
]}

Micka, Tomas ^{[1
]}

Polak, Michal ^{[2
]}

Plachy, Tomas ^{[2
]}

Hedbavny, Milan ^{[3
]}

Jelinek, Roman ^{[3
]}

Blaha, Filip ^{[2
,4
]}

机构：

[1] Pontex Spol Sro, Bezova 1658, Prague 14714 4, Czech Republic

[2] Czech Tech Univ, Fac Civil Engn, Dept Mech, Thakurova 7, Prague 16629 6, Czech Republic

[3] Freyssinet CZ As, Zapy 267, Brandys Nad Labem 25001, Czech Republic

[4] Czech Tech Univ, Fac Civil Engn, Dept Concrete & Masonry Struct, Thakurova 7, Prague 16629 6, Czech Republic

来源：

9TH ANNUAL CONFERENCE NANO & MACRO MECHANICS 2018 | 2018年 / 15卷

关键词：

Concrete; tensile force; magnetoelastic method; prestressed strand; prestressed cable; prestressed wire; elastomagnetic sensor;

D O I：

10.14311/APP.2018.15.0046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the technical praxis there is very often a need of axial force determination in the important structural elements of a building during its construction or operational state. The paper presents practical application of the new approach based on the magnetoelastic principle, especially aimed on experimental evaluation of the axial forces in the prestressed reinforcement on prestressed concrete structures. Described approach is usable not only for newly built structures but in particular for existing ones. The experiment was realized on a prestressed concrete beam dismantled from a bridge that was put out of operation. The influence of a simulated defect of the reinforcement on its magnetoelastic properties has also been investigated. During result evaluation, the knowledge based on the theoretical analysis of the electromagnetic field was used.

引用

页码：46 / 50

页数：5

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