Development of Tub Girders for Prestressed Concrete Bridges Complying With LRFD

Kim, Yail Jimmy

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Development of Tub Girders for Prestressed Concrete Bridges Complying With LRFD

2022-12-01
By Kim, Yail Jimmy

File Language:

English

Details

Creators:

Kim, Yail Jimmy
Corporate Creators:

University of Colorado at Denver
Corporate Contributors:

Colorado. Dept. of Transportation. Research Branch ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

CDOT-2022-11
Resource Type:

Tech Report
Geographical Coverage:

Colorado ; United States
Corporate Publisher:

Colorado. Dept. of Transportation. Research Branch
Description:

This report presents the development of tub girders for prestressed concrete bridges complying with the Load and Resistance Factor Design (LRFD) method. In addition, the use of 0.7 in. strands is elaborated for the B618-U girders of the Colorado Department of Transportation. In the first part of the report as regards a state-of-the-art review, technical parameters are categorized in accordance with physical characteristics and corresponding contents are examined. The second part of the report suggests a new tub girder series. After understanding the performance of tub girders selected from six transportation agencies in the nation, an optimization algorithm is employed to generate efficient prototype sections. Afterward, detailed investigations are conducted to appraise various practical aspects. A simplified version of the prototype sections is also delineated for regional precasters. A comparative study is carried out to evaluate the geometric stability and production costs of the prototype, simplified, and existing B618-U girders. Implementation: A new tub girder series is proposed to improve structural efficiency and the potential implementation of 0.7 in. strands is discussed for bridge construction in Colorado.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/65881/dot_65881_DS1.pdf
File Type:

[PDF - 7.08 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:c535400bf99825baddb88a3c68f7e8ba86301f43a87a9b3f0f5710b32e41ac06

File Language:

English

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