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Evaluation of Corrosion Resistance of Improved Post-tensioning Materials after Long-term Exposure Testing

1.

2011 ... G.E. McCool, M.E. Ahern, J.E. Breen, S.L. Wood · Ten full-scale post-tensioned beam specimens were subject to 4 years of aggressive cyclic ponded saltwater exposure. Three of those specimens were additionally exposed to saltwater spray once per month on one anchorage face. Non-destructive monitoring was conducted

4562-4 [CTR] ... FHWA/TX-11/0-4562-4

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4562_4.pdf
9.7 MB
______________________________________________________________________________________________________

Strength and Serviceability Design of Reinforced Concrete Deep Beams

2.

2009 ... Oguzhan Bayrak [and five others] · An experimental study was conducted in which 37 reinforced concrete deep beam specimens were tested. The specimens are some of the largest deep beams ever tested in the history of shear research. The data from the experimental program and from a database of 179 deep beam tests in

5253-1 [CTR] ... 0-5253-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_5253_1.pdf
18 MB
______________________________________________________________________________________________________

Project Level Performance Database for Rigid Pavements In Texas

3.

2008 ... Oguzhan Bayrak [and five others] · Since the inclusion of Strut-and-Tie Modeling (STM) provisions in the AASHTO LRFD specifi cations in 1994, TxDOT engineers have been examining the impact that the provisions have on the design of their bent caps. In general, it has been difficult to implement the STM provisions due to their

5253 [CTR] ... PSR 0-5253 ... Project Summary Report, 0-5253

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/5253.pdf

______________________________________________________________________________________________________

Recommendations for the Use of Precast Deck Panels at Expansion Joints

4.

2008 ... Sharon L. Wood [and seven others] · Prestressed concrete panels have been used by the bridge construction industry in the state of Texas for many years to increase construction speed and improve safety and economy. At expansion joints, cast-in-place concrete is used and requires temporary formwork and slows

5367-1 [CTR] ... FHWA/TX-09/0-5367-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_5367_1.pdf
5.5 MB
______________________________________________________________________________________________________

Development of Simple Bridge Deck Details at Expansion Joints

5.

2008 ... RS: James Jirsa; Researchers: Lewis Agnew [and four others] · Research conducted under TxDOT Project 0-4418 provided information on the behavior of expansion joint details that has the potential to simplify bridge deck construction, reduce construction costs, and improve worker safety. Although the prime purpose of the

5367 [CTR] ... PSR 0-5367-S ... Project Summary Report, 0-5367

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/5367.pdf

______________________________________________________________________________________________________

Bending Fatigue Response of Grouted Stay Cables

6.

2008 ... Sharon L. Wood [and thirteen others] · Both the Fred Hartman Bridge and the Veterans Memorial Bridge have experienced large-amplitude vibrations of the stay cables. A major concern resulting from these vibrations is the possibility of fatigue damage to the parallel, seven-wire, prestressing strand in the grouted stay cables ? and

1401-1 [CTR] ... 0-1401-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_1401_1.pdf
8.3 MB
______________________________________________________________________________________________________

Methodology for the Quantitative Evaluation of the Remaining Fatigue Life of Fracture Critical Bridges

7.

2007 ... Sharon L. Wood and Peter K. Dean · Two fracture critical bridges were instrumented using miniature, battery-powered data acquisition systems as part of this investigation. The measured rainflow response was then used to estimate the remaining fatigue life of each bridge. The primary advantages of the monitoring system are

4096-2 [CTR] ... 0-4096-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4096_2.pdf

______________________________________________________________________________________________________

Filed Tests and Analytical Studies of the Dynamic Behaviour and the Onset of Galloping in Traffic Signal Structures

8.

2007 ... Michael J. Floreah, Lance Manuel, Karl H. Frank and Sharon L. Wood · Unpredictable fatigue failures of cantilevered traffic signal structures in Texas and throughout the United States in recent years have created the need to study their fatigue behavior. Based on recent research, the American Association of State Highway and

4586-1 [CTR] ... 0-4586-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4586_1.pdf

______________________________________________________________________________________________________

Field Testing of Cantilevered Traffic Signal Structures Under Truck-Induced Gust Loads

9.

2007 ... Matthew N. Albert, Lance Manuel, Karl H. Frank and Sharon L. Wood · Changes in the AASHTO fatigue design equations for truck-induced gust loads have been made in recent years. However, there has not been any long-term field testing of cantilevered traffic signal structures to verify the design equations. In this study, two

4586-2 [CTR] ... 0-4586-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4586_2.pdf

______________________________________________________________________________________________________

Revision of AASHTO Fatigue Design Loadings for Signs, Luminaires, and Traffic Signal Structures, for Use in Texas

10.

2007 ... RS: Chris W. Letchford; Researchers: Andrew Budek [and four others] · New provisions for fatigue design in Section 11 of the Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals issued in 2001 have made it difficult to find economical AASHTO-compliant design solutions for

4586-S [TechMRT] ... PSR 0-4586-S ... Project Summary Report, 0-4586

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/4586.pdf

______________________________________________________________________________________________________

Evaluation of Serviceability Requirements for Load Rating Prestressed Concrete Bridges

11.

2007 ... Sharon L. Wood [and three others] · Within Texas, the procedures in the AASHTO Manual for Condition Evaluation of Bridges (MCEB) are used to determine the load rating of existing structures. A large number of prestressed concrete bridges that were constructed in the 1950s and 1960s have load ratings that fall below the

1895-1 [CTR] ... 0-1895-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_1895_1.pdf

______________________________________________________________________________________________________

Determination of Fatigue Damage in Cable Stays

12.

2006 ... RS: Sharon L. Wood; Researchers: Matthew J. Bean [and twelve others] · Large-amplitude vibrations have been observed on numerous cable-stayed bridges around the world. Both long-span, cable-stayed bridges in Texas ? the Veterans Memorial Bridge and the Fred Hartman Bridge ? have experienced large-amplitude, wind and

1401-s [CTR] ... PSR 0-1401 ... Project Summary Report, 0-1401

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/1401.pdf

______________________________________________________________________________________________________

Evaluate the Effect of Allowing the Use of 12 [square root of] f (c') to Load Rate Prestressed Concrete Bridges

13.

2006 ... RS: Sharon L. Wood; Researcher: John Breen · In Texas, the procedures in the AASHTO Manual for Condition Evaluation of Bridges (MCEB) are used to determine the load rating of existing structures. A large number of prestressed concrete bridges that were constructed in the 1950s and 1960s have load ratings that fall below the

1895-S [CTR] ... PSR 0-1895-S ... Project Summary Report, 0-1895

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/1895.pdf

______________________________________________________________________________________________________

Anchorage Requirements for Grouted Vertical-Duct Connectors in Precast Bent Cap Systems : A Summary

14.

2006 ... Francisco J. Brenes, Sharon L. Wood and Michael E. Kreger · During the past ten years, the Texas Department of Transportation has constructed several, high-profile bridge projects using precast bent cap systems. This approach has reduced construction schedules dramatically and has provided safer working environments for

4176-S [CTR] ... PSR 0-4176-S ... Project Summary Report, 0-4176

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4176_S.pdf

______________________________________________________________________________________________________

Anchorage Requirements for Grouted Vertical-Duct Connectors in Precast Bent Cap Systems

15.

2006 ... Francisco J. Brenes, Sharon L. Wood and Michael E. Kreger · Bridge projects constructed in Texas which utilize precast bent caps typically employ grouted vertical ducts in the cap-to-column connections. This type of connection is preferred due to the simple geometry and because the volume of grout needed to complete the

4176-1 [CTR] ... 0-4176-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4176_1.pdf

______________________________________________________________________________________________________

Design for Shear in Reinforced Concrete Using Strut-and-Tie Models

16.

2006 ... Michael D. Brown [and five others] · The design of reinforced concrete members for shear was studied. Both strut-and-tie models (STM) and sectional methods were examined. Initially, the response of isolated struts was observed. Various layout of reinforcement were used within the isolated struts. Three series of deep beam tests

4371-2 [CTR] ... 0-4371-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4371_2.pdf

______________________________________________________________________________________________________

Evaluation and Monitoring of Texas' Major and Unique Bridges

17.

2005 ... C.T. Bilich and S.L. Wood · Two monitoring systems for bridges were evaluated for use by the Texas Department of Transportation. The first system was designed to increase the quantitative information obtained during a routine inspection of a steel bridge. The miniature, battery-powered data acquisition system selected for

4096-S [CTR] ... PSR 0-4096-S ... Project Summary Report, 0-4096

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4096_1.pdf

______________________________________________________________________________________________________

Allowable Design Release Stresses for Pretensioned Concrete Beams

18.

2004 ... Alfredo Castro [and four others] · A research program was conducted in Ferguson Structural Engineering Laboratory at The University of Texas at Austin to determine whether elevated concrete stresses at extreme flexural fibers, relative to current allowable stresses, can be applied to pretensioned concrete beams at transfer. A

4086-2 [CTR] ... 0-4086-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4086_2.pdf

______________________________________________________________________________________________________

Evaluation of Two Monitoring Systems for Significant Bridges in Texas

19.

2004 ... C.T. Bilich and S.L. Wood · Two monitoring systems for bridges were evaluated for use by the Texas Department of Transportation. The first system was designed to increase the quantitative information obtained during a routine inspection of a steel bridge. The miniature, battery-powered data acquisition system selected for

4096-1 [CTR] ... 0-4096-1

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_4096_1.pdf

______________________________________________________________________________________________________

Increasing the Flexural Capacity of Typical Reinforced Concrete Bridges in Texas Using Carbon Fiber Reinforced Polymers

20.

2001 ... Sergio F. Brena, Sharon L. Wood and Michael E. Kreger · A large portion of the off-system bridges and some on-system bridges in Texas were constructed in the 1950s using vehicle loads that are less than the current design standards. As a result, the legal load that is permitted to cross these bridges is often limited and many are

1776-2 [CTR] ... FHWA/TX-0-1776-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/1776_2.pdf
7.4 MB
______________________________________________________________________________________________________

Development of a Precast Bent Cap System

21.

2001 ... Eric E. Matsumoto [and five others] · Improved speed of construction and economy can be achieved through the use of precast bridge substructures. As a step in the advancement of precast bridge substructures, a precast bent cap system is developed for nonseismic regions, including a design methodology, construction

1748-2 [CTR] ... FHWA/TX-0-1748-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_1748_2.pdf
38.3 MB
______________________________________________________________________________________________________

Use of Carbon Fiber Reinforced Polymer Composites to Increase the Flexural Capacity of Reinforced Concrete Beams -- Preliminary Review Copy

22.

2001 ... Sergio F. Brena [and four others] · A large portion of the off-system bridges and some on-system bridges in Texas were constructed in the 1950s using vehicle loads that are less than the current design standards. As a result, the legal load that is permitted to cross these bridges is often limited and many are scheduled for

1776-1 [CTR] ... 0-1776-1 PRC

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/1776_1.pdf
7.8 MB
______________________________________________________________________________________________________

Using Carbon Fiber Composites to Increase the Flexural Capacity of Reinforced Concrete Bridges

23.

2001 ... Sergio F. Breņa, Sharon L. Wood, and Michael E. Kreger · · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).

1776-S [CTR] ... PSR 0-1776-S ... Project Summary Report, 0-1776

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/1776_S.pdf
1 MB
______________________________________________________________________________________________________

An Exploration of Lateral Load Distribution in a Girder-Slab Bridge in Gatesville, Texas

24.

2000 ... S.M. Barney [and four others] · Older bridges currently in service can be tested to determine if the bridges behave as originally designed. Many current design methods are overly conservative. This research shows the results of the instrumentation and testing of the Leon River Bridge for its lateral distribution of live load. Tests

2986-4 [CTR] ... 7-2986-4

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/7_2986_4.pdf

______________________________________________________________________________________________________

Improving Bridge Rating and Truck Permitting Procedures Through Finite Element Analysis

25.

2000 ... D.S. McIlrath, K.H. Frank, S.L. Wood and J.A. Yura · Annually, state DOTs are confronted with thousands of overweight truck permit applications and must determine the ability of bridges along these routes to carry the permit loads. This research shows the benefits of performing more detailed analyses using SAP2000 and BRUFEM,

1746-2 [CTR] ... FWHA/TX-04/ 0-1746-2

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/0_1746_2.pdf
1.4 MB
______________________________________________________________________________________________________

Lateral Load Distribution on Transverse Floor Beams in Steel Plate Girder Bridges

26.

2000 ... K.R. Pennings [and four others] · Many twin plate girder bridges have been recently rated inadequate for their current design loads. The controlling members that determine the bridge rating is often the transverse floor beams. The current provisions assume no lateral load distribution on the floor beams. This research focused on

1746-3 [CTR] ... 0-1746-3

Full-text Link:
http://www.utexas.edu/research/ctr/pdf_reports/1746_3.pdf
2.6 MB
______________________________________________________________________________________________________

Measurement-Based Evaluation of Noncomposite Steel Girder Bridges

27.

2000 ... D.V. Jauregui [and four others] · The results from an experimental study into the behavior of noncomposite slab-on-steel girder bridges are presented. Two bridge units were tested under increasing static loads beyond first yield of the girders with a flatbed trailer loaded with concrete barriers. The load tests were unique in

1746-1 [CTR] ... FHWA/TX-0-1746-1

Full-text Link:
http://library.ctr.utexas.edu/pdf2/1746-1.pdf
3.44 MB
______________________________________________________________________________________________________


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