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Proceedings Paper

Piezoceramic-based smart aggregates for seismic stress monitoring of RC building
Author(s): Shuang Hou; Haibin Zhang; Sheng Yu
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Paper Abstract

This paper proposed a distributed seismic damage sensing network using PZT-based smart aggregates for RC building structures, aiming to monitor the structural local seismic response. The stress history and the crack patterns of the structure under earthquake load in positions of interest are the two key issues to be monitored. The concept of the seismic damage mechanism monitoring by means of direct piezoelectric effect and stress wave propagation evaluation is proposed. The proposed smart aggregates consist of PZT sensing element and the stone holding matrix. Its senssitivity for dynamic compressive stress induced by earthquake load and the influence of pre-stress from dead load of building structures after embedment are discussed. It is shown that the proposed smart aggregates suits for seismic stress monitoring and the static pre-stress has no significant influence on its performance.

Paper Details

Date Published: 14 April 2011
PDF: 7 pages
Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79812N (14 April 2011); doi: 10.1117/12.880274
Show Author Affiliations
Shuang Hou, Dalian Univ. of Technology (China)
Haibin Zhang, Dalian Univ. of Technology (China)
Sheng Yu, Dalian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7981:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
Masayoshi Tomizuka, Editor(s)

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