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A Self-Sensing Adaptive Material for a New Generation of Multifunctional Highway Bridge Bearing Systems

Project Information

Project ID: 
FHWA-PROJ-13-0106
Project Abstract: 

The objective is to develop self-sensing adaptive bearing (SSAB) system that uses a wireless magnetorheological elastomer (MRE) sensor, which combines self-sensing (force, displacement, lateral stiffness-sensing actuation) with adaptive stiffness/vibration damping (tuned vibration absorption) into a single system. The proposed system will be capable of sensing transient displacement/load in monitoring bridge responses to environmental disturbances (such as traffic or high wind) at support locations, while at the same time producing variable stiffness properties for protection of bridges against various types of loading conditions. The successful realization of such a new multifunctional system could lead to quantum-leap changes in long-term highway bridge performance and maintenance. The information obtained through the MRE sensors will have an impact in future design of structures during extreme events.

Goals

To design, develop, test, and evaluate a wireless magnetorheological elastomer (MRE)-based sensor for highway bridges.

Test Methodology

(1) A universal equivalent circuit phenomenological model: to monitor the electric response of magnetorheological elastomers (MREs) with different particle inclusions under an applied magnetic field and mechanical deformations. (2) The percolation theory: to capture the changes of macroscopic electrical properties of MREs due to the particle structure variations.

Expected Benefits

It is anticipated that the proposed self-sensing adaptive bearing (SSAB) system will lead to new management models in highway structures that can improve long-term performance of the Nation's infrastructure.

Research HUB ID: 
8846
Project Status: 
Completed
Project Funding Amount (Contract Award Amount): 
$650,000
Start Date: 
Monday, September 30, 2013
End Date: 
Thursday, September 29, 2016
Public Access Plan: 
No
Laboratory: 
Asphalt Binder and Mixtures Laboratory (ABML), Concrete Laboratory
Grant/Contract ID: 
435666
FHWA AMRP Program: 
Exploratory Advanced Research
FHWA Activity: 
Highway Safety Information System

Contact Information

First Name: 
Sheila
Last Name: 
Duwadi
Phone Number: 
(202) 493-3106
Email Address: 
Team: 
Structural Engineering Team
Office:
Office of Bridges and Structures
Office Code: 
HIBS-10

Management Organizations

Sponsor Organization: 
Organization Role: 
Sponsor Organization
Contact Role: 
Sponsor
Managing Organization: 
Organization Role: 
Project Managing Organization
Contact Role: 
Project Lead
Performing Organization: 
Organization Role: 
Performing Organization
Contact Role: 
Principal Investigator

Deliverables