Smart Textiles for Strengthening of Structures
Author:
Górski Marcin,Krzywoń Rafał,Dawczyński Szymon,Szojda Leszek,Salvado Rita,Lopes Catarina,Araujo Pedro,Velez Fernando Jose,Castro-Gomes Joao
Abstract
Abstract
This paper presents results of mechanical tests
on a prototype of an innovative structural strengthening
in form of self-monitoring fabric. Smart textile employs
carbon fibers conductivity for measuring strains while
monitoring changes of electric resistance under increasing
load. A general solution was tested in a series of calibrating
tests on strengthening of small size concrete slabs.
Promising results of simple specimen, has encouraged the
research team to perform the next tests using mastered carbon
fibre reinforced fabric. Main tests were performed on
natural scale RC beam. Smart textile proved its efficiency
in both: strengthening and monitoring of strains during
load increase. New strengthening proposal was given 10%
increase of loading capacity and the readings of strain
changes were similar to those obtained in classical methods.
In order to calibrate the prototype and to define range
limits of solution usability, textile sensor was tested in areas
of large deformations (timber beam) and aswell as very
small strains (bridge bearing block). In both cases, the prototype
demonstrated excellent performance in the range
of importance for structural engineering. This paper also
presents an example of use of the smart strengthening in
situ, in a real life conditions.
Publisher
Walter de Gruyter GmbH
Subject
Electrical and Electronic Engineering,Mechanical Engineering,Aerospace Engineering,General Materials Science,Civil and Structural Engineering,Environmental Engineering
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