6533b822fe1ef96bd127d90f
RESEARCH PRODUCT
Performance of two innovative stress sensors imbedded in mortar joints of new masonry elements
Maurizio PapiaGabriele BertagnoliFabio Di TrapaniAgatino PennisiFulvio ParisiSimone BarileMaria Concetta OddoLidia La MendolaFrancesco PappalardoAlessia Monacosubject
EngineeringPiezoelectric sensorCapacitive stress sensorCapacitive sensing0211 other engineering and technologiesUniaxial compressionExperimental testing020101 civil engineering02 engineering and technology0201 civil engineering021105 building & constructionGeneral Materials ScienceCapacitive stress sensorsCivil and Structural EngineeringMasonry wallStructural health monitoringStress sensorbusiness.industryStress sensorsMasonry wallsBuilding and ConstructionStructural engineeringCapacitive stress sensors Experimental testing Masonry walls Piezoelectric stress sensors Structural health monitoringMasonryCapacitive stress sensors; Experimental testing; Masonry walls; Piezoelectric stress sensors; Structural health monitoringSettore ICAR/09 - Tecnica Delle CostruzioniPiezoelectric stress sensorsPiezoelectric stress sensorStructural health monitoringMortarbusinessdescription
Abstract Many historical cities enjoy the presence of masonry buildings with inestimable historical, artistic and cultural value. Old masonry buildings often suffer structural deficiencies, design faults and materials aging process. In recent years, many researchers focused their attention on the opportunities that structural health monitoring (SHM) can ensure for the health state of existing masonry structures, where damage can be difficult to be promptly predicted, pontentially causing abrupt collapses, with high risks for the community. This paper presents an experimental study on the effectiveness of two types of stress sensor for SHM of new masonry elements. Ceramic piezoelectric sensors and capacitive sensors were installed in mortar joints of two series of specimens made of calcarenite stone masonry and clay brick masonry. All specimens were tested under uniaxial compression with displacement control, to assess the effectiveness of sensors in recording pressure variation within the different types of masonry and therefore testing their potential use for SHM applications. Even though both the ceramic and capacitive sensors were designed as stress sensors for concrete structures, their installation within mortar joints provided a good response, based on the comparison with standard measurement devices. Results demonstrate the suitability of the sensors even for SHM of masonry structures.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-01-01 |