Acoustic emission techniques applied to conventionally reinforced conrete bridge girders.

Schumacher, Thomas; Oregon State 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

i

Acoustic emission techniques applied to conventionally reinforced conrete bridge girders.

2008-09-01
By Schumacher, Thomas

[PDF-13.86 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:

Schumacher, Thomas
Corporate Creators:

Oregon State University
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Acoustic Emission Testing Acoustic Emission Tests Bridge Design Bridge Superstructures Concrete Bridges Concrete Bridges--Oregon--Testing Finite Element Method Girder Bridges Girders Highway Bridges Reinforced Concrete Bridges Structural Analysis Structural Design
Publication/ Report Number:

FHWA-OR-RD-09-04
Resource Type:

Tech Report
Geographical Coverage:

Oregon
Edition:

Final report.
Corporate Publisher:

Oregon. Dept. of Transportation. Research Unit
Abstract:

Reinforced concrete (RC) bridges generally operate at service-level loads except during discrete overload events that can reduce the integrity of the structure by initiating concrete cracks, widening or extending of existing concrete cracks, as well as reinforcing steel slip or yielding. Identification of previous damage and predicting the possible impact on future performance has increasingly become of interest to load rating engineers. The ultimate goal of this project was to determine if the Acoustic Emission (AE) Technique can assist in:

• Assessing and identifying previous damage

• Monitoring existing bridges for real-time detection of occurring damage

• Predicting critical conditions or failure of bridge members.

The term damage in this context shall be defined as a change in the current state or condition of a structural element that reduces its capacity. Damage is not a well-defined term for reinforced concrete since cracking alone does not necessarily reduce the capacity of a member. However, crack formation and crack width growth are of importance since they may expose steel reinforcement to the environment which can lead to rebar corrosion, etc. In the present study, the term deterioration is therefore used rather than damage.

Four conventionally reinforced concrete (CRC) girders were designed to fail in shear-compression mode and constructed with different reinforcement details to investigate the AE response due to increasing loads up to capacity, cyclic loading representing ambient service-level trucks, and simulated test trucks also at the service level.
Format:

PDF
Funding:

SPR 633
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:9fbf49872fd575349545fcfaef9df1b3533776758025d5ec46ee2669434963d6
Download URL:

https://rosap.ntl.bts.gov/view/dot/21829/dot_21829_DS1.pdf
File Type:

No Additional Files

More +

Acoustic emission techniques applied to conventionally reinforced conrete bridge girders.

Details:

Supporting Files

You May Also Like