In-situ wireless monitoring of fiber reinforced cementitious composite bridge piers

Tsung-Chin Hou, Jerome Peter Lynch, Gustavo Parra-Montesinos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High-performance fiber reinforced cementitious composites (HPFRCC) are a cement-based material in which a relatively low volume fraction of short fibers (steel, polymeric or carbon) are included in a cement matrix to produce a material that strain hardens under tension. Exhibiting high damage tolerance and tensile strain capacity on the order of 1 to 3%, HPFRCC materials can be used to reduce transverse steel reinforcement and associated reinforcement bar congestion in shear-dominated structural components designed for seismic loadings. To monitor the long-term performance of critical structural components within civil structures, low-cost monitoring technologies are necessary. In this study, a wireless structural monitoring system is proposed for in-situ monitoring of HPFRCC structural components subjected to reversed cyclic loading. A low-cost wireless sensing unit designed to collect data with high precision is adopted to monitor the response of an HPFRCC bridge pier column instrumented with a dense array of linear voltage displacement transducers (LVDTs), strain gages and accelerometers. The wireless sensing unit platform is shown to be capable of recording the response of a structural system with accuracies comparable to those of a laboratory data acquisition system employing traditional coaxial cables.

Original languageEnglish
Title of host publicationIMAC-XXIII
Subtitle of host publicationConference and Exposition on Structural Dynamics - Structural Health Monitoring
Publication statusPublished - 2005 Dec 1
Event23rd Conference and Exposition on Structural Dynamics 2005, IMAC-XXIII - Orlando, FL, United States
Duration: 2005 Jan 312005 Feb 3

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

Other23rd Conference and Exposition on Structural Dynamics 2005, IMAC-XXIII
CountryUnited States
CityOrlando, FL
Period05-01-3105-02-03

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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