Joint Removal Implications : Thermal Analysis and Life-Cycle Cost

Mahmoud, Hussam; Atadero, Rebecca Anne; Rager, Karly; Harper Smith, Aura Lee; Colorado 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

Joint Removal Implications : Thermal Analysis and Life-Cycle Cost

2018-04-01
By Mahmoud, Hussam ; Atadero, Rebecca Anne ; Rager, Karly ; ...

[PDF-7.11 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:

Mahmoud, Hussam ; Atadero, Rebecca Anne ; Rager, Karly ; Harper Smith, Aura Lee

Mahmoud, Hussam ; Atadero, Rebecca Anne ; Rager, Karly ; Harper Smith, Aura Lee Less -
Corporate Creators:

Colorado State University
Corporate Contributors:

Colorado. Dept. of Transportation. Research Branch ; United States. Federal Highway Administration

Colorado. Dept. of Transportation. Research Branch ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bridge Decks Bridge Management Systems Bridges Deck Joints Expansion Joint Expansion Joints Joint Elimination Joints (Engineering) Life Cycle Costing Thermal Analysis Thermal Gradient
Resource Type:

Tech Report
Geographical Coverage:

Colorado ; United States

Colorado ; United States Less -
Corporate Publisher:

Colorado. Dept. of Transportation. Research Branch
Abstract:

Deck joints are causing significant bridge deterioration and maintenance problems for Departments of Transportation (DOTs). Colorado State University researchers partnered with the Colorado DOT to analyze the effects of temperature change and thermal gradients on deck joint movement and provide recommendations regarding deck joint elimination. Typical steel and concrete bridges were instrumented along the expansion joint and continuous data was collected for four months. In addition, numerical finite element models and life cycle cost analysis were conducted to evaluate the potential for joint elimination. The data indicates that temperature shifts and thermal gradients through the depth of the girders along the joint are impacting the bridge’s movements and causing changes in stress. A strong parallel is shown between the temperature changes and the study joint’s movement and changes in stresses in the girders. Despite being clogged, the joints showed some movements, which corresponded to specific level of stresses in the adjacent girders, which was higher in the steel girders than the concrete girders. The finite element results showed that a reduction in moment demand on the superstructure is not apparent until a full-moment connection is utilized as a joint replacement. The parametric study and data analysis of thermal gradients highlighted the need for further research on thermal gradients experienced by bridges. Finally, using the life cycle cost analysis, it was concluded that elimination of joints would be the most cost-effective approach for minimizing the total life cycle cost of the bridges. The modeling approach outlined in this study and the life cycle cost analysis framework can be applied to any bridge and be used by CDOT to determine the viability of joint elimination for any bridge in CO.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:7adedebd228b3deb4f284a448f85b454e84339f2ce2beff26f586833fbda345b
Download URL:

https://rosap.ntl.bts.gov/view/dot/35493/dot_35493_DS1.pdf
File Type:

No Additional Files

More +

Joint Removal Implications : Thermal Analysis and Life-Cycle Cost

Details:

Supporting Files

You May Also Like