Real Time Assessment of Dynamic Loads on Bridges

Runolfsson, Thordur; Madhavaram, Asish

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Real Time Assessment of Dynamic Loads on Bridges

2013-05-05
By Runolfsson, Thordur ; Madhavaram, Asish

File Language:

English

Details

Creators:

Runolfsson, Thordur ; Madhavaram, Asish
Corporate Creators:

University of Oklahoma. School of Electrical and Computer Engineering
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:
Publication/ Report Number:

OTCREOS11.1-54-F
Resource Type:

Tech Report
Geographical Coverage:

Oklahoma ; United States
Corporate Publisher:

Oklahoma Transportation Center
Abstract:

Highway bridges are an important class of civil structures that are subject to continuously acting and varying dynamic loads due to traffic. A large number of highway bridges in the US (bridges on interstate highways or state highways which have high speed limits) were built about 50 years ago and are approaching critical age in terms of deterioration and may be in need of maintenance and/or replacement. Consequently, the need for advanced methods of highway bridge health monitoring, damage detection and estimation of load patterns has reached a critical stage. With recent advances in sensor and network technologies, it has become possible to instrument structures with embedded sensors that continuously measure the dynamic response of the structure, which is the combined response of the bridge and vehicle loads. In this project, we developed a technique for data driven real time estimation of the dynamic loads generated by vehicles passing on bridge structures. The approach is based on robust optimal feedback control ideas and uses a simplified gray box model for the bridge that has been identified using multiple sets of sensor data. Robustness of the developed approach against modeling uncertainties is demonstrated.
Format:

PDF
Funding:

DTRT06-G-0016
Download URL:

https://rosap.ntl.bts.gov/view/dot/27085/dot_27085_DS1.pdf
File Type:

[PDF - 3.69 MB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha256:8cfacbf9932c16517a223e51da8b0e1f7f6f417fdad1cc18083a83e268b376e9

File Language:

English

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