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

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

研究成果: Conference contribution

摘要

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.

原文English
主出版物標題IMAC-XXIII
主出版物子標題Conference and Exposition on Structural Dynamics - Structural Health Monitoring
出版狀態Published - 2005 十二月 1
事件23rd Conference and Exposition on Structural Dynamics 2005, IMAC-XXIII - Orlando, FL, United States
持續時間: 2005 一月 312005 二月 3

出版系列

名字Conference Proceedings of the Society for Experimental Mechanics Series
ISSN(列印)2191-5644
ISSN(電子)2191-5652

Other

Other23rd Conference and Exposition on Structural Dynamics 2005, IMAC-XXIII
國家United States
城市Orlando, FL
期間05-01-3105-02-03

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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