Investigate Live Load Distribution and Stability of Prestressed Concrete Girders [Project Summary Report]

Helwig, Todd; Aliasghar-Mamaghani, Mojtaba; Bjelland, Aidan; Tackett, Paul; Koyuk, Baran; Raj Selvaraj, Bhushan; Ngamjarungjit, Tanakorn; Stevens, Ryan; Hebdon, Matthew

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Investigate Live Load Distribution and Stability of Prestressed Concrete Girders [Project Summary Report]

2025-06-30
By Helwig, Todd ; Aliasghar-Mamaghani, Mojtaba ; Bjelland, Aidan

File Language:

English

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Creators:

Helwig, Todd ; Aliasghar-Mamaghani, Mojtaba ; Bjelland, Aidan ; Tackett, Paul ; Koyuk, Baran ; Raj Selvaraj, Bhushan ; Ngamjarungjit, Tanakorn ; Stevens, Ryan ; Hebdon, Matthew
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

0-7115
Resource Type:

Brief
Geographical Coverage:

United States ; Texas
Edition:

Project Summary Report
Corporate Publisher:

Texas Department of Transportation. Research and Technology Implementation Office
Abstract:

The researchers conducted extensive laboratory testing to obtain data on the flexural and torsional stiffness of typical precast girder segments utilized in Texas. Data was obtained in both the uncracked and cracked state considering various combinations of flexure and torsion on the girders. The experiments provided valuable data for validating the finite element analytical (FEA) models of the girder systems. The validated models were then utilized to conduct extensive parametric FEA studies on typical spliced-girder systems utilized in Texas. The parametric studies were used to quantify the stability behavior of these prestressed concrete girder systems during erection and casting of the concrete bridge deck. The analysis included both eigenvalue buckling and nonlinear geometrical analyses using both uncracked and cracked section properties. Detailed studies were also conducted considering the live load distribution of the bridge system in-service.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/93166/dot_93166_DS1.pdf
File Type:

[PDF - 300.14 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:341ac36a590f676d87c5468c3de5e0868a9a418c88362577e5ea6433802adcc6d1a060d5251bd2657786700eaebca390006b33ee4aede697e3c640a30b3fcfc5

File Language:

English

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