Evaluation of uncertainty in determination of neutral axis and deformed shape of beam structures : final report.

Glisic, Branko; Princeton University

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Evaluation of uncertainty in determination of neutral axis and deformed shape of beam structures : final report.

2016-01-01
By Glisic, Branko

English

Details You May Also Like

Details:

Creators:

Glisic, Branko
Corporate Creators:

Princeton University
Corporate Contributors:

Rutgers University. Center for Advanced Infrastructure and Transportation ; New Jersey Department of Transportation ; United States. Federal Highway Administration ; United States. Department of Transportation. Research and Innovative Technology Administration

Rutgers University. Center for Advanced Infrastructure and Transportation ; New Jersey Department of Transportation ; United States. Federal Highway Administration ; United States. Department of Transportation. Research and Innovative Technology Administration Less -
Subject/TRT Terms:

[+]

Bridges Deformed Shape Longgauge Fiber-optic Sensors Maintenance Neutral Axis Strain (Mechanics) Strain Monitoring Structural Health Monitoring Testing Uncertainty Analysis
Publication/ Report Number:

CAIT-UTC-048
Resource Type:

Tech Report
Geographical Coverage:

United States ; New Jersey

United States ; New Jersey Less -
Corporate Publisher:

Rutgers University. Center for Advanced Infrastructure and Transportation
Abstract:

With aging infrastructure, it becomes crucial to make informed decisions about maintenance and

preservation actions, as well as renewal of civil structures. Structural Health Monitoring (SHM) can be

an important aid in this decision process, but in spite of its great potential, SHM is not applied in a

widespread or generic manner, which is essentially due to the lack of reliable and affordable monitoring

solutions. Consequently, there is a demand for monitoring methods that are not specific to individual

structures, are reliable and robust on-site, and applicable to typical bridges.

The overall objective of PI’s research group is to research and develop universal SHM methods based

on strain monitoring using series of parallel long-gauge fiber-optic sensors (so called parallel

topologies). In particular, two basic parameters are studied in detail: 1) the location of the neutral axis

based on dynamic strain measurements and a probabilistic data analysis, and 2) the deformed shape

of individual girders based on static and dynamic strain measurements. Information about these

parameters assessed at several locations of the bridge can then be used to assess global structural

behavior and health condition. Changes in these parameters over time can indicate variation in

structural behavior due to change in operational conditions or damage. However, setting the thresholds

necessities thorough uncertainty analysis in determination of the above parameters.

Thus, the objectives of this project are to explore, understand and quantify (deterministically or

statistically) the uncertainties in determination of the position of neutral axis and the deformed shape,

where the latter are determined based on series of parallel long-gauge sensors. To achieve this aim,

numerical modelling, experimental analysis, and field validation on a real bridges were performed.
Format:

PDF
Funding:

DTRT12-G-UTC16
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:6368c5a1635cb05951eebcedb22430cc15308bd6c060805d58c07943ec9d373d
Download URL:

https://rosap.ntl.bts.gov/view/dot/31794/dot_31794_DS1.pdf
File Type:

[PDF-2.60 MB]