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0-4562, Corrosion Resistance of Grouted Post-Tensioning Systems
1.
[2014] ... Research Performed by: Center for Transportation Research; Research Supervisors: Dr. John E. Breen, Dr. Michael E. Kreger; Researchers: Andrew L. Kilduff [and eight others] · "Although the vast majority of post-tensioned bridges in the United States have performed satisfactorily, corrosion problems on a small number of
4562 Summary phase 2 [CTR] ... PSR 0-4562-S.2 ... Project Summary, 4562
Full-text Link:
http://tti.tamu.edu/documents/0-4562-S.pdf
69 KB
______________________________________________________________________________________________________
Corrosion Resistance Recommendations from Long-Term Exposure Testing of Post-Tensioning Systems
2.
2013 ... A.L. Kilduff [and four others] · Results from two sets of full-scale post-tensioned specimens after four and six years of highly aggressive exposure tests are summarized. The study was funded to assess corrosion resistance of both the current state of the industry and possible future developments in strands, ducts, couplers,
4562-5 F [CTR] ... FHWA/TX-13/0-4562-5F
Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-4562-5f.pdf
4.5 MB
______________________________________________________________________________________________________
Evaluation of Corrosion Resistance of Improved Post-tensioning Materials after Long-term Exposure Testing
3.
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://ctr.utexas.edu/wp-content/uploads/pubs/0_4562_4.pdf
9.7 MB
______________________________________________________________________________________________________
Comparative Study of Mechanical and Corrosion Resistance Properties of Bridge Post-Tensioning Strands
4.
2011 ... R. D. Kalina, S. Mac Lean, J. E. Breen · This report summarizes the exploration of new methods of protection for the strands used in post-tensioning of concrete bridges. Companion small-scale tests of strand or grout and strand were conducted. The tests included mechanical testing to determine modulus of elasticity, yield
4562-3 [CTR] ... FHWA/TX-11/0-4562-3
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4562_3.pdf
2.5 MB
______________________________________________________________________________________________________
Durability Evaluation of Post-Tensioned Concrete Beam Specimens After Long-Term Aggressive Exposure Testing
5.
2007 ... G. P. Turco, R. M. Salas, A. J. Schokker, J. S. West, M. E. Kreger and J. E. Breen · This report focuses on the forensic analysis and evaluation of large-scale post-tensioned beam specimens after nearly 8 years of extremely aggressive exposure testing. The research was funded jointly by both FHWA and TxDOT. The relationship
4562-2 [CTR] ... FHWA/TX-08/0-4562-2
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4562_2.pdf
______________________________________________________________________________________________________
Evaluate the Effect of Allowing the Use of 12 [square root of] f (c') to Load Rate Prestressed Concrete Bridges
6.
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 Summary [CTR] ... PSR 0-1895-S ... Project Summary Report, 0-1895
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/1895.pdf
______________________________________________________________________________________________________
Bridge Slab Behavior at Expansion Joints
7.
2006 ... Christin J. Coselli [and six others] · The primary objective of this research study was to evaluate the behavior and capacity of the IBTS and alternate 8 in. UTSE (Uniform Thickness Slab End) details at expansion joints, especially on skewed ends of bridge slabs. The two full-scale CIP (cast-in-place) specimens, 0o and 45o
4418-1 [CTR] ... FHWA/TX-05/0-4418-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4418_1.pdf
______________________________________________________________________________________________________
Design for Shear in Reinforced Concrete Using Strut-and-Tie Models
8.
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://ctr.utexas.edu/wp-content/uploads/pubs/0_4371_2.pdf
______________________________________________________________________________________________________
Development of New Bridge Deck Details at Expansion Joints
9.
2005 ... C.J. Coselli [and six others] · The Texas Department of Transportation (TxDOT) currently uses, for most of its bridges, the ?IBTS? standard detail for bridge slab ends at expansion joints (Figure 1). That detail has enabled TxDOT to eliminate the use of diaphragms at slab ends by increasing the thickness at slab ends. Slab ends are
4418 Summary [CTR] ... PSR 0-4418-S ... Project Summary Report, 0-4418
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4418_S.pdf
______________________________________________________________________________________________________
Summary: Factors Affecting Bond and Friction Losses in Multi-Strand Post-Tensioning Tendons Including the Effect of Emulsifiable Oils
10.
2005 ... T. Luthi [and four others] · Inadequate attention to durability in either the design or construction phases of a project can result in costly repairs or, in some cases, failure. Although the vast majority of post-tensioned bridges in the U.S. have performed satisfactorily, corrosion problems in a number of bridges in Florida have raised
4562 Summary phase 1 [CTR] ... PSR 0-4562-S.1 ... Project Summary Report, 0-4562
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4562_S1.pdf
______________________________________________________________________________________________________
Factors Affecting Bond and Friction Losses in Multi-Strand Post-Tensioning Tendons Including the Effects of Emulsifiable Oils
11.
2005 ... T. Luthi [and four others] · Emulsifiable oils are often used in post-tensioned construction to reduce friction losses and to provide temporary corrosion protection for tendons during the period of time between stressing and grouting. In the past, oils were flushed from the ducts with water prior to grouting. This practice often
4562-1 [CTR] ... 0-4562-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4562_1.pdf
______________________________________________________________________________________________________
Allowable Design Release Stresses for Pretensioned Concrete Beams
12.
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://ctr.utexas.edu/wp-content/uploads/pubs/0_4086_2.pdf
______________________________________________________________________________________________________
Durability Design of Post-Tensioned Bridge Substructure Elements : Summary
13.
2004 ... Ruben M. Salas [and four others] · · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).
1405 Summary [CTR] ... PSR 0-1405-S; 0-1405-S ... Project Summary Report, 0-1405
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_1405_S.pdf
1.5 MB
______________________________________________________________________________________________________
Conclusions, Recommendations, and Design Guidelines for Corrosion Protection of Post-Tensioned Bridges
14.
2004 ... by R.M. Salas [and four others] · The effectiveness of cement grout in galvanized or polyethylene ducts, the most widely used corrosion protection system for multistrand bonded post-tensioned concrete tendons, has been under debate due to several reported examples of significant tendon corrosion damage. While experience in
1405-9 [CTR] ... FHWA/TX-04/0-1405-9; 0-1405-9
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_1405_9.pdf
3 MB
______________________________________________________________________________________________________
Evaluation of Alternative Materials to Control Drying-Shrinkage Cracking in Concrete Bridge Decks
15.
2003 ... Kevin Folliard [and four others] · In the United States, restrained shrinkage cracking of concrete bridge decks is a significant durability problem. The issues affecting restrained shrinkage cracking arise from design and construction practices, as well as material properties. The mechanisms of drying, autogenous, and carbonation
4098-4 [CTR] ... 0-4098-4
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4098_4.pdf
______________________________________________________________________________________________________
Anchorage Behavior of Headed Reinforcement : Part A Lap Splices : Part B Design Provisions and Summary
16.
2003 ... M.K. Thompson [and four others] · The behavior of headed reinforcement in concrete was studied using full-scale tests of lap splices. The mechanics of the anchorage behavior were observed and recorded to evaluate the manner in which the capacity of a headed bar is developed. The measured data were compared to the results
1855-3 [CTR] ... 0-1855-3
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_1855_3.pdf
______________________________________________________________________________________________________
Long-Term Post-Tensioned Beam Exposure Test Specimens : Final Evaluation
17.
2003 ... by R.M. Salas [and five others] · In the last few years, the effectiveness of cement grout in galvanized or polyethylene ducts, the most widely used corrosion protection system for multistrand bonded post-tensioned concrete tendons, has been under debate, due to significant tendon corrosion damage, several reported failures of
1405-7 [CTR] ... 0-1405-7
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_1405_7.pdf
7 MB
______________________________________________________________________________________________________
Long-Term Post-Tensioned Column Exposure Test Specimens : Final Evaluation
18.
2003 ... by R.M. Salas [and four others] · Post-tensioned concrete piers or columns may be exposed to very severe environments affecting their long-term durability. Two main exposure conditions are of special interest: partially submerged structures in sea water and structures exposed to deicing salts. The durability study of post-
1405-8 [CTR] ... FHWA/TX-04/0-1405-8; CTR 0-1405-8
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_1405_8.pdf
3.5 MB
______________________________________________________________________________________________________
Anchorage of Headed Reinforcement in CCT Nodes
19.
2003 ... M.K. Thompson [and four others] · The behavior of headed reinforcement in concrete was studied using full-scale tests of CCT nodes. The mechanics of the anchorage behavior were observed and recorded to evaluate the manner in which the capacity of a headed bar is developed. The measure data were used to evaluate existing
1855-2 [CTR] ... FHWA/TX-04/ 1855-2
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1855_2.pdf
4.8 MB
______________________________________________________________________________________________________
Behavior and Design of Headed Reinforcement in Concrete Structures
20.
2002 ... M.K. Thompson [and three others] · · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).
1855 Summary [CTR] ... PSR 0-1855-S ... Project Summary Report, 0-1855
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_1855_S.pdf
______________________________________________________________________________________________________
Anchorage Behavior of Headed Reinforcement : Literature Review
21.
2002 ... M.K. Thompson, J.O. Jirsa, J.E. Breen, and R.E. Klingner · The findings of a literature review of topics related to the anchorage of headed reinforcement are presented. The topics are grouped in three broad categories: conventional anchorage of reinforcement, anchorage of headed reinforcement, and a review of strut-and-tie
1855-1 [CTR] ... FHWA/TX-0-1855-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1855_1.pdf
2.1 MB
______________________________________________________________________________________________________
Feasibility of Utilizing High-Performance Lightweight Concrete in Pretensioned Bridge Girders and Panels
22.
2002 ... G.S. Sylva III, J.E. Breen, and N.H. Burns · The use of high performance lightweight concrete in Texas prestressed concrete bridges has potential advantages and disadvantages. Advantages include reduced dead load, crane capacity, and shipping costs. Disadvantages include higher prestress losses, deflections, camber, and
1852-2 [CTR] ... FHWA/TX-03/ 1852-2
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1852_2.pdf
1.5 MB
______________________________________________________________________________________________________
Final Evaluation of Corrosion Protection for Bonded Internal Tendons in Precast Segmental Construction
23.
2002 ... by R.M. Salas [and four others] · In 1993, aware of unfortunate experiences in Europe in early non-epoxy segmental joints, Research Project 0-1264 was started with the main purpose of investigating the corrosion protection of internal tendons at segmental joints. This testing program was transferred to Project 0-1405 for long-
1405-6 [CTR] ... 0-1405-6
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1405_6.pdf
2.9 MB
______________________________________________________________________________________________________
Structural Lightweight Concrete Prestressed Girders and Panels
24.
2002 ... D.B. Thatcher [and five others] · This report explores the uses of high performance lightweight concrete in pretensioned girders and deck panels. | A summary of pertinent literature on application of lightweight concrete in bridge applications is given. The results indicate a number of successful applications as well as a few cautions.
1852-1 [CTR] ... FHWA/TX-02/ 1852-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1852_1.pdf
3.98 MB
______________________________________________________________________________________________________
Development of a Precast Bent Cap System
25.
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://ctr.utexas.edu/wp-content/uploads/pubs/0_1748_2.pdf
38.3 MB
______________________________________________________________________________________________________
Summary: Development of a Precast Bent Cap System
26.
2001 ... Eric E. Matsumoto [and four others] · "The Pierce Elevated section of IH-45 in the Houston central business district needed to have 113 spans replaced. A conventional TxDOT bridge system, consisting of a precast superstructure and cast-in-place substructure, would have required more than a year and a half to complete
1748 Summary [CTR] ... PSR 0-1748-S ... Project Summary Report, 0-1748
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1748_S.pdf
512 KB
______________________________________________________________________________________________________
Summary: High Performance Lightweight Concrete Prestressed Girders and Panels
27.
2001 ... J.A. Heffington [and five others] · The purpose of this summary report is to present the findings of a study on high performance lightweight concrete (f'c > 6000psi) to be used in pretensioned girders and deck panels. The major components of the study are as follows: 1) literature search; 2)lightweight concrete mix design
1852 Summary [CTR] ... PSR 0-1852-S ... Project Summary Report, 0-1852
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1852_S.pdf
______________________________________________________________________________________________________
Long-Term Post-Tensioned Beam and Column Exposure Test Specimens : Experimental Program
28.
1999 ... by J.S. West [and four others] · The use of post-tensioning in bridges can provide durability and structural benefits to the system while expediting the construction process. When post-tensioning is combined with precast elements, traffic interference can be greatly reduced through rapid construction. Post-tensioned concrete
1405-3 [CTR] ... 0-1405-3
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_1405_3.pdf
14 MB
______________________________________________________________________________________________________
Interim Conclusions, Recommendations, and Design Guidelines for Durability of Post-Tensioned Bridge Substructures
29.
1999 ... by A.J. Schokker [and three others] · The use of post-tensioning in bridges can provide durability and structural benefits to the system while expediting the construction process. When post-tensioning is combined with precast elements, traffic interference can be greatly reduced through rapid construction. Corrosion protection of
1405-5 [CTR] ... 0-1405-5
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1405_5.pdf
1.4 MB
______________________________________________________________________________________________________
Development of High Performance Grouts for Bonded Post-Tensioned Structures
30.
1999 ... A. J. Schokker [and three others] · The use of post-tensioning in bridges can provide durability and structural benefits to the system while expediting the construction process. When post-tensioning is combined with precast elements, traffic interference can be greatly reduced through rapid construction. Post-tensioned concrete
1405-2 [CTR] ... 0-1405-2
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1405_2.pdf
1.3 MB
______________________________________________________________________________________________________
Corrosion Protection for Bonded Internal Tendons in Precast Segmental Construction
31.
1999 ... by J.S. West, R.P. Vignos, J.E. Breen and M.E. Kreger · The use of post-tensioning in bridges can provide durability and structural benefits to the system while expediting the construction process. When post-tensioning is combined with precast elements, traffic interference can be greatly reduced through rapid construction. Post-
1405-4 [CTR] ... 0-1405-4
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1405-4.pdf
3.09 MB
______________________________________________________________________________________________________
Measurement-Based Performance Evaluation of a Segmental Concrete Bridge
32.
1999 ... by Rodney T. Davis [and four others] · Construction of around 10km of the US 183 elevated highway in Austin, Texas, using precast segmental post-tensioned construction provided a unique opportunity to investigate many aspects of segmental bridge technology. The project included balanced cantilever erection, span-by-span
1404-3 [CTR] ... 0-1404-3F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1404-3f.pdf
11.1 MB
______________________________________________________________________________________________________
A Precast Substructure Design for Standard Bridge Systems
33.
1999 ... by Sarah L. Billington, Robert W. Barnes and John E. Breen · The proposed substructure system described in this report has been developed to improve the aesthetics and reduce the construction time of the support structures for standard bridges. The form of the proposed substructures is highly attractive, and is a distinct
1410-2 [CTR] ... FHWA/TX-98/1410-2F; 0-1410-2F ... Project Summary Report
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1410-2f.pdf
12.1 MB
______________________________________________________________________________________________________
State-of-the-Art Report about Durability of Post-Tensioned Bridge Substructures
34.
1999 ... J.S. West [and four others] · Durability design requires an understanding of the factors influencing durability and the measures necessary to improve durability of concrete structures. The objectives of this report are to: (1.) Survey the condition of bridge substructures in Texas; (2.) Provide background material on bridge
1405-1 [CTR] ... 0-1405-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1405_1.pdf
5.5 MB
______________________________________________________________________________________________________
Indications About Thermal Gradient Magnitudes from Field Studies of Concrete Box Girder Bridges
35.
1998 ... M. Keith Thompson, John E. Breen and Michael E. Kreger · Three years of continuous thermal data from three concrete box girder bridges and one concrete box girder pier are compiled into a single study. The data is used to draw conclusions about trends in thermal gradient magnitudes and shapes. The maximum gradients from
1820 Summary [CTR] ... FHWA/TX-99/1820-S ... Project Summary Report, 0-1820
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1820-s.pdf
1.72 MB
______________________________________________________________________________________________________
Measured Behavior and Thermal Gradients in Innovative Bridge Piers
36.
1998 ... by Valerie A. Andres [and four others] · Construction of the US 183 elevated highway in Austin, Texas, provided a unique opportunity to investigate the behavior of two types of innovative concrete piers. Tied Y-shaped piers were used to support mainlane spans. They were cast in situ with steel pipes for the tensile ties between the
1404-1 [CTR] ... FHWA/TX-98/1404-1; CTR 0-1404-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1404-1.pdf
4.20 MB
______________________________________________________________________________________________________
Measured Behavior of a Curved Precast Segmental Concrete Bridge Erected by Balanced Cantilevering
37.
1998 ... by Keith Thompson, Rodney T. Davis, John E. Breen and Michael E. Kreger · A five-span continuous precast segmental horizontally curved concrete bridge erected in balanced cantilever as part of the US Highway 183 interchange with Interstate Highway 35 in Austin, Texas was instrumented with concrete strain gauge devices,
1404-2 [CTR] ... FHWA/TX-98/1404-2; CTR 0-1404-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1404-2.pdf
4.59 MB
______________________________________________________________________________________________________
Behavior and Design of Large Structural Concrete Bridge Pier Overhangs
38.
1997 ... by Scott D. Armstrong [and four others] · In designing large cantilever bent caps for use on recent projects under current AASHTO design specifications, designers were faced with considerable uncertainties. Questions arose when designers attempted to satisfy both serviceability and strength requirements for a series of
1364-1 [CTR] ... FHWA/TX-99/1364-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1364-1.pdf
5.44 MB
______________________________________________________________________________________________________
Investigation of Corrosion Protection Systems for Bridge Stay Cables
39.
1995 ... by H.R. Hamilton III, J.E. Breen and K.H. Frank · The use of cable-stayed bridges in medium- and long-span applications in the United States has increased significantly in the past ten years. Of paramount importance with this type of bridge is the protection of the stay cables from corrosive elements. An extensive survey, reported
1264-3 F [CTR] ... Report 0-1264-3F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1264-3f.pdf
7.57 MB
______________________________________________________________________________________________________
Anchorage Zone Reinforcement for Post-Tensioned Concrete Girders
40.
1994 ... J.E. Breen [and four others] · · Publ. by: Transportation Research Board (TRB).
NCHRP Report 356 ... NCHRP Report 356 ... Report (National Cooperative Highway Research Program -
Full-text Link:
No online resource supplied by publisher
______________________________________________________________________________________________________
Reducing Friction Losses in Monolithic and Segmental Bridge Tendons : Interim Report
41.
1993 ... by R.T. Davis [and three others] · In the construction of post-tensioned bridges, the increased use of precast technology has resulted in somewhat tighter radii of curvature and greater total angle changes. Both factors make friction losses during stressing higher and somewhat less predictable. Various design
1264-2 [CTR] ... FHWA/TX-94+1264-2; CTR 0-1264-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1264-2.pdf
2.92 MB
______________________________________________________________________________________________________
Measurement Based Revisions for Segmental Bridge Design and Construction Criteria
42.
1993 ... by C.L. Roberts, J.E. Breen and M.E. Kreger · This report is the second and final in a series reporting the field study of several spans of the San Antonio "Y" project. The San Antonio "Y" project is a major urban viaduct comprising segmental concrete box girders post-tensioned with a mix of internal and external tendons and erected
1234-3 [CTR] ... FHWA/TX-94+1234-3F; CTR 0-1234-3F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1234-3f.pdf
6.54 MB
______________________________________________________________________________________________________
Evaluation of Agents for Lubrication and Temporary Corrosion Protection of Post-Tension Tendons
43.
1993 ... by W.M. Kittleman [and four others] · In the construction of post-tensioned bridges, the increased use of precast technology has resulted in somewhat tighter radii of curvature and greater total angle changes. Both factors make friction losses during stressing higher and somewhat less predictable. In both cast-in-situ and precast
1264-1 [CTR] ... FHWA/TX-94+1264-1; CTR 0-1264-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1264-1.pdf
2.19 MB
______________________________________________________________________________________________________
Detailing for Structural Concrete
44.
1993 ... by K. Bergmeister [and three others] · This report is the final report in a series which investigates the applications of strut-and-tie modelling for typical details in structural concrete bridges. It summarizes the state of the art of strut-and-tie modelling and presents specific recommendations for choosing the critical dimensions and
1127-3 F [CTR] ... FHWA/TX-93+1127-3F; CTR 0-1127-3F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1127-3f.pdf
7.23 MB
______________________________________________________________________________________________________
Fretting Fatigue in External Post-Tensioned Tendons
45.
1992 ... by K.K. Ryals, J.E. Breen, M.E. Kreger · External post-tensioning tendons are frequently used in the construction of multiple span box girder bridges. They occur particularly frequently in long bridges erected using span-by-span construction as in elevated urban freeways and over water viaducts. In addition, they have been
1211-1 F [CTR] ... FHWA/TX-93+1211-1F; CTR 3-5-89/2-1211-1F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1211-1f-ctr.pdf
4.9 MB
______________________________________________________________________________________________________
Bonding of External Tendons at Deviators
46.
1991 ... by B.J. Radloff, M.E. Kreger and J. E. Breen · This report is the first in a series outlining a major study of techniques for improving the ductility and strength of post-tensioned concrete box girder bridges through improved bonding of external tendons. It presents a detailed state-of-the-art report concerning bonding of tendons through
1209-1 [CTR] ... FHWA/TX-91-1209-1; CTR 3-5-89/0-1209-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1209-1-ctr.pdf
5.8 MB
______________________________________________________________________________________________________
An Investigation of Strut-and-Tie Models for Dapped Beam Details
47.
1991 ... by D. L. Barton [and four others] · The objective of the test program undertaken in this study was to develop experimental data for defining various elements of strut-and-tie models. The data was used extensively in establishing design guidelines for details of structural reinforced concrete (Report 1127-3F). The experimental
1127-1 [CTR] ... FHWA/TX-92+1127-1; CTR 3-587/9-1127-1; 0-1127-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1127-1.pdf
9.63 MB
______________________________________________________________________________________________________
Enhancing the Strength and Ductility of Post-Tensioned Segmental Box-Girder Bridges
48.
1991 ... by A.N.A. Hindi, M.E. Kreger and J.E. Breen · An investigation was conducted to determine the effect of using external tendons, discretely bonded at intermediate diaphragms, and supplemental, grouted internal tendons on the strength and ductility of post-tensioned segmental box-girder bridges. In the current research program,
1209-2 [CTR] ... FHWA/TX-92+1209-2F; CTR 3-5-89/0-1209-2F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1209-2f.pdf
1.54 MB
______________________________________________________________________________________________________
Shear Strength of Pretensioned Concrete Girders in Negative Moment Regions
49.
1990 ... by Anthony C. Powers, Michael E. Kreger, and John E. Breen · This report presents the results of an experimental study performed to evaluate the suitability of current AASHTO/ACI design provisions for shear as applied to thin-web pretensioned I-girders subject to shear and negative-moment bending. Eight tests were
1127-2 [CTR] ... FHWA/TX-92+1127-2; CTR 3-5-87-1127-2; 0-1127-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/1127-2.pdf
7.54 MB
______________________________________________________________________________________________________
Design and Behavior of Thin Walls in Hollow Concrete Bridge Piers and Pylons
50.
1990 ... by A.W. Taylor, R.B. Rowell, J.E. Breen · This report is the final report of a three-year research program and summarizes an investigation which examined the behavior of thin-walled hollow concrete box sections such as those typically used in the cross-sections of hollow concrete bridge piers and pylons. A series of accurate and
1180-1 [CTR] ... FHWA/TX-91+1180-1F; CTR 3-5-88/0-1180-1F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1180-1f-ctr.pdf
8.5 MB
______________________________________________________________________________________________________
Strength and Ductility of a Three-Span Externally Post-Tensioned Segmental Box Girder Bridge Model
51.
1989 ... R.J.G. MacGregor, M.E. Kreger and J.E. Breen · This report is the third and final report in a series outlining a major study of the behavior of post-tensioned concrete box girder bridges with post-tensioning tendons external to the concrete section. It summarizes the design, construction, testing and interpretation of a very
365-3 F [CTR] ... FHWA/TX-90+365-3F; CTR 3-5-85/8-365-3F; Report 0-365-3F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/365-3F-CTR.pdf
11.3 MB
______________________________________________________________________________________________________
State of the Art Externally Post-Tensioned Bridges with Deviators
52.
1988 ... by L.C. Powell, J.E. Breen and M. E. Kreger · This report is the first in a series outlining a major study of the behavior of post-tensioned concrete box girder bridges with post-tensioning tendons external to the concrete section. It presents an extensive literature review tracing the history and development of the technology connected
365-1 [CTR] ... FHWA/TX-89+365-1; CTR 3-5-85/8-365-1; 0-365-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/365-1-CTR.pdf
3.3 MB
______________________________________________________________________________________________________
Shear Capacity of High Strength Prestressed Concrete Girders
53.
1988 ... by David L. Hartmann, J.E. Breen, M.E. Kreger · Recent studies have shown that it is commercially feasible to produce prestressed concrete girders utilizing concrete strengths in the 12,000 psi range. However, current codes and specification provisions for important structural parameters such as shear strength are largely
381-2 [CTR] ... FHWA/TX-88+381-2; CTR 3-5-84-381-2; 0-381-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/381-2-CTR.pdf
7.7 MB
______________________________________________________________________________________________________
Deviation Saddle Behavior and Design for Externally Post-Tensioned Bridges : Interim report
54.
1988 ... by R.J. Beaupre, L.C. Powell, J.E. Breen an M.E. Kreger · This report is the second in a series outlining major study of the behavior of post-tensioned concrete box girder bridges with post-tensioning tendons external to the concrete section. It presents the results of an experimental program in which ten very accurately sealed
365-2 [CTR] ... FHWA/TX-89+365-2; CTR 3-5-85/8-365-2; 0-365-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/365-2-CTR.pdf
8.9 MB
______________________________________________________________________________________________________
Fretting Fatigue in Post-Tensioned Concrete
55.
1988 ... by G.P. Wollmann [and three others] · This report summarizes an experimental investigation of fatigue strength of post-tensioned concrete girders. The test series included strand-in-air tests to characterize the prestressing strands utilized, reduced beam specimens with single strands in a tendon, reduced beam specimens
465-2 F [CTR] ... FHWA/TX-90+465-2F; TTI 3-5-86/8-465-2F; Report 0-465-2F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/465-2f.pdf
4.46 MB
______________________________________________________________________________________________________
Time Dependent Deflections of Pretensioned Beams
56.
1987 ... D.J. Kelly, T.E. Bradberry, John E. Breen · Eight long-span (127-ft) pretensioned AASHTO Type IV bridge beams made with high strength concrete and low-relaxation strand were instrumented in the field. Longtime deformations and internal beam temperatures were measured. Measurements were taken periodically from the time
381-1 [CTR] ... 0-381-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/381-1-CTR.pdf
7.8 MB
______________________________________________________________________________________________________
Field Verification of Bridge Deck Post-Tensioning
57.
1987 ... John E. Breen, Ramón L. Carrasquillo, and J. Farbiarz · The prestressing of bridge decks is an attractive concept with substantial potential benefits in both economy and improved durability. However, the practicality and applicability of the concept for slab and girder type bridges has not been previously documented in full size field
389-1 F [CTR] ... CTR 3-5-86-389-1F; Report 389-1F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/389-1F-CTR.pdf
1.9 MB
______________________________________________________________________________________________________
An Exploratory Investigation of Shear Fatigue Behavior of Prestressed Concrete Girders
58.
1987 ... by Patrick M. Bachman, Michael E. Kreger and John E. Breen · This report presents the results of an exploratory investigation of shear fatigue behavior of precast prestressed girders with unshored cast-in-place slabs. It includes a literature survey of shear fatigue behavior and design specifications related to fatigue of structural
465-1 [CTR] ... FHWA/TX-88+465-1; CTR 3-5-86-465-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/465-1.pdf
4.15 MB
______________________________________________________________________________________________________
Design Procedures for Prestressed Concrete Bridge Decks
59.
1985 ... by R.W. Poston [and three others] · The objective of this study is to investigate the use of deck prestressing as a method of improving durability of bridge decks with the aim of developing suggested AASHTO Specification design requirements to facilitate its use. The results from an experimental test series of prestressed
316-3 F [CTR] ... FHWA/TX-86/41+316-3F; CTR 3-5-82-316-3F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/316-3F-CTR.pdf
3.7 MB
______________________________________________________________________________________________________
Structural Effects of Transverse Prestressing in Bridge Decks
60.
1985 ... by A.R. Phipps [and five others] · Transverse prestressing is an attractive concept with substantial benefits in both economy and improved durability. This report summarizes a series of interrelated physical tests and computer analyses which were conducted to provide necessary information for development of design criteria
316-2 [CTR] ... FHWA/TX-86/40+316-2; CTR 3-5-82-316-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/316-2-CTR.pdf
7.4 MB
______________________________________________________________________________________________________
Durability of Prestressed Bridge Decks
61.
1985 ... by R.W. Poston, R.L. Carrasquillo, and J. E. Breen · It is estimated that $500 million dollars is spent annually for repair of bridge decks which suffer from deterioration. The major cause of bridge deck deterioration is corrosion of reinforcing steel induced by exposure to chlorides from deicers and salt water spray. Dissolved salts
316-1 [CTR] ... FHWA/TX-86/16+316-1; CTR 3-5-82-316-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/316-1-CTR.pdf
6.4 MB
______________________________________________________________________________________________________
Load Tests of a Pretensioned Girder Bridge Near Happy, Texas
62.
1985 ... R.W. Poston, T.E. Bradberry, and J.E. Breen · At the request of the Bridge Division of the Texas State Department of Highways and Public Transportation (TSDHPT), a research study was conducted to investigate the load-deflection behavior of them middle two interior 135-ft spans of a bridge near Happy, Texas. Figure 1 shows this
921-1 F [CTR] ... Report 921-1F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/921-1f.pdf
1.11 MB
______________________________________________________________________________________________________
Strength and Behavior of Bolt Installations Anchored in Concrete Piers
63.
1984 ... James O. Jirsa [and five others] · In this study, the primary objective was to investigate the strength and behavior of anchor bolt installations. In one phase, high strength anchor bolt groups embedded in reinforced concrete piers were investigated. Bolts with a 1-3/4-in. diameter and a yield stress of 105 ksi were used. The
305-1 F [CTR] ... FHWA/TX-85/51+305-1F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/305-1F-CTR.pdf
9.5 MB
______________________________________________________________________________________________________
Evaluation of the Composite Wing Girder Bridge at Bear Creek
64.
1984 ... by Christopher D. White and John E. Breen · This report documents the construction monitoring and subsequent field testing to evaluate the performance of an innovative "loose-fit" composite post-tensioned concrete wing girder bridge constructed over Bear Creek, south of Austin, Texas. The structure was built as a trial evaluation
White 1984 [CTR] ... IAC(84-85)-0799-1F; 799-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/799-1f.pdf
2.66 MB
______________________________________________________________________________________________________
Fatigue Behavior of Pretensioned Concrete Girders
65.
1984 ... T.R. Overman, John E. Breen, and Karl H. Frank · This report summarizes the fatigue testing of full scale precast pretensioned girders with unshored cast-in-place slabs. It includes an extensive literature review of prestressed concrete fatigue and development of design specifications relating to fatigue of prestressed concrete.
300-2 F [CTR] ... FHWA/TX-85/39+300-2F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/300-2F-CTR.pdf
14.0 MB
______________________________________________________________________________________________________
Proposed Design Procedures for Shear and Torsion in Reinforced and Prestressed Concrete
66.
1983 ... J.A. Ramirez and John E. Breen · The object of this study is to propose and evaluate a design procedure for shear and torsion in reinforced and prestressed concrete beams, with the aim of clarifying and simplifying current design requirements and AASHTO requirements. In previous reports in this series a three-dimensional space
248-4 F [CTR] ... FHWA/TX-84/38+248-4F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/248-4F-CTR.pdf
5.5 MB
______________________________________________________________________________________________________
Experimental Verification of Design Procedure for Shear and Torsion in Reinforced and Prestressed Concrete
67.
1983 ... J.A. Ramirez and John E. Breen · The object of this study is to propose and evaluate a design procedure for shear and torsion in reinforced and prestressed concrete beams, with the aim of clarifying and simplifying current design requirements and AASHTO requirements. This report summarizes an extensive experimental
248-3 [CTR] ... FHWA/TX-84/37+248-3
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/248-3-CTR.pdf
7.2 MB
______________________________________________________________________________________________________
Review of Design Procedures for Shear and Torsion in Reinforced and Prestressed Concrete
68.
1983 ... J.A. Ramirez and John E. Breen · The object of this study is to proposed and evaluate a design procedure for shear and torsion in reinforced and prestressed concrete beams, with the aim of clarifying and simplifying current design provisions and AASHTO standard specifications. This report summarizes an extensive literature
248-2 [CTR] ... FHWA/TX-84/36+248-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/248-2-CTR.pdf
4.3 MB
______________________________________________________________________________________________________
Exploratory Study of Shear Strength of Joints for Precast Segmental Bridges
69.
1983 ... K. Koseki and John E. Breen · The joints between the precast segments are of critical importance in segmental bridge construction. They are critical to the development of structural capacity by ensuring the transfer of shear across the joints and often play a key role in ensuring durability by protecting the tendons against
248-1 [CTR] ... FHWA/TX-84/32+248-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/248-1-CTR.pdf
2.9 MB
______________________________________________________________________________________________________
Verification of Analysis Programs for Solid and Hollow Concrete Bridge Piers
70.
1983 ... T.E. Gilliam [and three others] · In this report the details and results of an experimental investigation of the stiffness and strength of typical solid and hollow cross section reinforced concrete bridge piers is summarized. The piers were subjected to combinations of axial load and biaxial moments typical of bridge pier applications.
254-1 [CTR] ... FHWA/TX-83/15+254-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/254-1-CTR.pdf
4.7 MB
______________________________________________________________________________________________________
Design of Slender, Nonprismatic, and Hollow Concrete Bridge Piers
71.
1983 ... R.W. Poston [and three others] · This report contains detailed recommendations for desirable revisions in the AASHTO Specifications design approach for slender columns, and introduces second order analysis computer codes for electronic computation to improve design of slender concrete bridge piers and bents. The computer codes
254-2 F [CTR] ... FHWA/TX-84/35+254-2F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/254-2F-CTR.pdf
10.7 MB
______________________________________________________________________________________________________
A Fatigue Study of Prestressing Strand
72.
1983 ... Conrad Paulson, Jr., Karl H. Frank, John E. Breen · This study reviews the literature which reports on fatigue studies of prestressing strand and also presents the results of a series of strand fatigue tests. The fatigue tests compared tests on samples of strand fatigue tests. The fatigue tests compared tests on samples of strand
300-1 [CTR] ... FHWA/TX-82/54+300-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase2/300-1-CTR.pdf
3.4 MB
______________________________________________________________________________________________________
The Influence of Casting Position on Development and Splice Length of Reinforcing Bars
73.
1981 ... by J. J. Luke [and three others] · The objective of this study was to reexamine the development and splice length requirements for top cast bars based on a comparison of stresses developed at ultimate rather than at a specified value of loaded end slip. To understand the historical development of design provisions for the influence
242-1 [CTR] ... FHWA/TX-81/15+242-1; CTR 3-5-78-242-1
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/242-1-CTR.pdf
16.71 MB
______________________________________________________________________________________________________
The Influence of Shear on Lapped Splices in Reinforced Concrete
74.
1981 ... by A. J. Zekany [and three others] · The primary objective of this investigation was to study the effects of level of shear, amount of transverse reinforcement, and casting position on the strength of lapped splices. A limited number of tests were conducted to examine the influence of concrete strength, slump, and bar size on splice
242-2 [CTR] ... FHWA/TX-81/20+242-2; CTR 3-5-78-242-2
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/242-2-CTR.pdf
4.14 MB
______________________________________________________________________________________________________
Influence of Casting Position and Shear on Development and Splice Length : Design Recommendations
75.
1981 ... James O. Jirsa and John E. Breen · In Report 242-1, "The Influence of Casting Position on Development and Splice Length of Reinforcing Bars," and Report 242-2, "The Influence of Shear on Lapped Splices in Reinforced Concrete," the details and results of the experimental investigation on the influence of casting position and shear on
242-3 F [CTR] ... FHWA/TX-81/35+242-3F; CTR 3-5-78-242-3F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/242-3F-CTR.pdf
1.53 MB
______________________________________________________________________________________________________
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