Aggregate distribution investigation in box beams fabricated with self consolidating concrete.

Avendaño, Alejandro; Bayrak, Oguzhan; University of Texas at Austin. Center for Transportation Research

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Aggregate distribution investigation in box beams fabricated with self consolidating concrete.

2009-10-01
By Avendaño, Alejandro ; Bayrak, Oguzhan

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English

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Details:

Alternative Title:

Continuing research on allowable design release stresses for prestressed concrete beams
Creators:

Avendaño, Alejandro ; Bayrak, Oguzhan

Avendaño, Alejandro ; Bayrak, Oguzhan Less -
Corporate Creators:

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

Texas. Dept. of Transportation ; United States. Federal Highway Administration

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

[+]

Box Beams Box Beams--Testing Box Girder Bridges Box Girder Bridges--Testing Concrete Beams--Testing Prestressed Concrete Prestressed Concrete Beams--Testing Prestressed Concrete Bridges
Publication/ Report Number:

FHWA/TX-10/0-5197-01-1 ; 0-5197-01-1

FHWA/TX-10/0-5197-01-1 ; 0-5197-01-1 Less -
Resource Type:

Tech Report
Geographical Coverage:

Texas
Edition:

Technical report.
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

In 2004, the Texas Department of Transportation initiated Project 0-5197 to investigate the feasibility of

increasing the allowable compressive stress limit at prestress transfer. Initially, the live load performance of 36

specimens was evaluated by Birrcher and Bayrak (TxDOT Report 5197-1, 2007). Report 5197-4 presents the

subsequent research conducted based on recommendations of Birrcher and Bayrak (2007). In this portion of

TxDOT Project 0-5197, 45 Type-C beams and 10 4B28 box beams were tested to experimentally determine

their cracking load. The Type-C beams were produced in four different fabrication plants using conventionally

consolidated concrete. The 10 4B28 box beams were produced in two fabrication plants using concrete mixture

designs of both self consolidating concrete as well as conventional concrete (Schnittker and Bayrak, CTR,

2008). After testing the 10 box beams procured in TxDOT Project 0-5197, Schnittker and Bayrak (2008)

reported increased amounts of top flange cracking at release, substantially lower modulus of elasticity (along

with increased deflections under live loading), slightly higher cambers near 28-days, and lower than expected

flexural cracking loads under live loads. The present investigation is carried out in an effort to explain the poor

performance of the beams fabricated with SCC as reported in research report 0-5197-4.
Format:

PDF
Funding:

0-5197-01
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:bb2d6bc9997e57e79b1d76c62c639d5157e42abaf7315c024435aec7b8d32bd9
Download URL:

https://rosap.ntl.bts.gov/view/dot/17940/dot_17940_DS1.pdf
File Type:

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Aggregate distribution investigation in box beams fabricated with self consolidating concrete.

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