NDLI: Smart Aggregates: a Distributed Intelligent Multi-purpose Sensor Network (DIMSN) for Civil Structures

Content Provider	IEEE Xplore Digital Library
Author	Song, G. Gu, H. Mo, Y.L.
Copyright Year	2007
Description	Author affiliation: Univ. of Houston., Houston (Song, G.; Gu, H.; Mo, Y.L.)
Abstract	Early-age strength monitoring, impact detection, and structural health monitoring are important issues for concrete structures, especially concrete infrastructures such as bridges. A distributed intelligent multi-purpose sensor network (DIMSN) using innovative piezoelectric-based smart aggregates is proposed in this paper to address these important issues. The smart aggregate is fabricated by embedding a water-proofed piezoelectric patch into a small concrete block. The smart aggregates are then placed at the desired locations in concrete structures before casting to form a distributed intelligent multipurpose sensor network. In this paper, a two-story concrete frame is used as the object to test the multi-functionality of smart aggregates and the DIMSN. The early-age strength monitoring is performed by monitoring the harmonic response amplitude of smart aggregates. Experimental results show that the predicted concrete strength matches the experimental results obtained in the compressive test. Impact tests are by performed by impacting the concrete frame at different locations. Experimental results show that the impact response is captured by the distributed smart aggregates and the energy of the impact response is related to the distance between the smart aggregate and the impact location. After the concrete strength is fully developed, structural health monitoring is conducted on the concrete frame through a destructive push-over test. Experimental results show that the proposed damage index matrix reveals the time history of health status of different locations. The proposed smart aggregate-based health monitoring approach is more sensitive than the traditional approaches that use microscopes and LVDTs. The proposed distributed intelligent multi-purpose sensor network has the potential to be implemented to the comprehensive performance evaluation of concrete civil structures.
Starting Page	775
Ending Page	780
File Size	6721478
Page Count	6
File Format	PDF
ISBN	1424410754
DOI	10.1109/ICNSC.2007.372878
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-15
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intelligent sensors Aggregates Intelligent networks Intelligent structures Concrete Monitoring Testing Bridges Casting Performance evaluation Concrete early age strength monitoring Sensor network Smart aggregate Piezoelectric material Health monitoring Impact detection
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in