Monitoring bridge scour using fiber optic sensors.

Cai, C.S.; Kong, Xuan; Xiong, Wen; Hou, Shuang; Louisiana State University. Dept. of Civil and Environmental Engineering

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

i

Monitoring bridge scour using fiber optic sensors.

2015-04-01
By Cai, C.S. ; Kong, Xuan ; Xiong, Wen ; ...

[PDF-7.87 MB]

Select the Download button to view the document

This document is over 5mb in size and cannot be previewed

English

Details You May Also Like

Details:

Creators:

Cai, C.S. ; Kong, Xuan ; Xiong, Wen ; Hou, Shuang

Cai, C.S. ; Kong, Xuan ; Xiong, Wen ; Hou, Shuang Less -
Corporate Creators:

Louisiana State University. Dept. of Civil and Environmental Engineering
Corporate Contributors:

Louisiana Transportation Research Center ; United States. Federal Highway Administration

Louisiana Transportation Research Center ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bridge Foundations Fiber Optics Instrumentation Laboratory Tests Scour Sensors Structural Health Monitoring
Publication/ Report Number:

FHWA/LA.10/535 ; LTRC Project Number: 08-2ST ; State Project Number: 736-99-1573

FHWA/LA.10/535 ; LTRC Project Number: 08-2ST ; State Project Number: 736-99-1573 Less -
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Corporate Publisher:

Louisiana Transportation Research Center
Abstract:

The scouring process excavates and carries away materials from the bed and banks of streams, and from

around the piers and abutments of bridges. Scour undermines bridges and may cause bridge failures due to

structural instability. In the last 30 years, more than 1,000 bridges collapsed in the US and about 60% of the

failures are related to the scour of bridge foundations. Due to the difficulty in inspecting bridge scour, scourinduced

failures tend to occur suddenly without prior warning or signs of distress to the structures. Owing to

the threat of hurricane-induced flooding and the fact that there are a significant number of coastal and

river/bayou bridges in Louisiana, a more reliable inspection and monitoring procedure for bridge scour is

needed.

This proposed study is to develop bridge scour monitoring techniques using fiber optic sensors. Based on

theoretical and numerical studies, a few mechanisms were proposed for foundation scour monitoring and

verified in laboratory tests. In order to apply those mechanisms to field bridges, three instrumentations were

designed and tested, and one design was selected for field applications. According to the selected design,

two 18-ft long piles with Fiber Bragg Grating (FBG) sensors were then fabricated, transported, and installed

besides the foundation of the field bridge. Finally, the long-term monitoring was conducted to evaluate the

foundation scour condition.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:6b1f8ff73596eae4c6df1b9a693ccef1e122c6c44890cc61f29f581a672ae4b8
Download URL:

https://rosap.ntl.bts.gov/view/dot/22288/dot_22288_DS1.pdf
File Type:

No Additional Files

More +

Monitoring bridge scour using fiber optic sensors.

Details:

Supporting Files

You May Also Like