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Condition of prestressed concrete bridge components : technology review and field surveys / by Whiting, D.(David)(CARDINAL)317085; Nagi, Mohamad.(CARDINAL)320201; Stejskal, B.; United States.Federal Highway Administration.(CARDINAL)139839; Construction Technology Laboratories (Portland Cement Association)(CARDINAL)286967;
Includes bibliographical references (pages 265-270).Interim report;Performed by Construction Technology Laboratories, Inc. for FHA Office of Engineering and Highway Operations Research and Development, under contract no.
Subjects: Technical reports.; Concrete bridges; Concrete bridges; Prestressed concrete construction;
Available copies: 1 / Total copies: 1
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An analysis of transfer and development lengths for pretensioned concrete structures / by Buckner, C. Dale.(CARDINAL)317087; United States.Federal Highway Administration.(CARDINAL)139839; Virginia Military Institute.Department of Civil and Environmental Engineering.;
Includes bibliographical references (pages 97-100).Introduction -- Transfer of prestress -- Development of prestressing strand -- Strand size and spacing limits -- Summary and recommendations -- Appendices -- References.Final report;The specific objectives of the present study were as follows: (1) Conduct a review of literature related to strand transfer and development length research; (2) Analyze data from recent studies and rationalize discrepancies among conclusions drawn from these studies; and (3) Recommend design criteria for strand transfer and development lengths consistent with the current state of knowledge. These objectives were fulfilled. Recommendations and equations for determining strand transfer and development lengths are presented.
Subjects: Technical reports.; Concrete bridges; Prestressed concrete construction.;
Available copies: 1 / Total copies: 1
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The history of the prestressing strand development length equation / by Tabatabai, H.(Habib)(CARDINAL)319122; Dickson, Timothy J.; United States.Federal Highway Administration.Office of Engineering & Highway Operations Research and Development.(CARDINAL)286896; Construction Technology Laboratories (Portland Cement Association)(CARDINAL)286967;
Includes bibliographical references (pages 105-106).Introduction -- History of the development length equation -- Development length parametric study -- Summary -- Appendices -- References.Final report;A research study was conducted to determine the history of the AASHTO prestressing strand development length equation and to evaluate the significance, with respect to development length, of changes in the AASHTO provisions for the determination of steel stress at ultimate flexural strength. The accuracy of the AASHTO provisions in determining steel stress at ultimate flexural strength was also evaluated for a number of typical cross sections used in bridge construction. The strand development length equation was first introduced in the 1963 ACI Building Code and was adopted by AASHTO in 1973. The original research that formed the basis for the equation was conducted at the Portland Cement Association (PCA) in the late 1950s and early 1960s.Sponsored by Office of Engineering and Highway Operations R&D, Federal Highway Administration, under contract no.
Subjects: Technical reports.; Concrete bridges; Prestressed concrete construction.; Tendons (Prestressed concrete);
Available copies: 1 / Total copies: 1
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Prestressed concrete channel bridges for secondary roads : final report. by Bramer, Charles R.; Uyanik, Mahmet Ensar,1916-; Loppacker, E. P.; Moredith, F. L.; North Carolina State University.Department of Engineering Research.(CARDINAL)219478; North Carolina State Highway Commission.(CARDINAL)166723; United States.Bureau of Public Roads.(CARDINAL)140366;
Includes bibliographies.pt. 1. An investigation of the elastic load distribution under live loading / C.R. Bramer, M.E. Uyanik, F.L. Moreadith -- pt. 2. An investigation of overload and ultimate behavior under hydraulic jack loading / C.R. Bramer, M.E. Uyanik, E.P. Loppacker.
Subjects: Bridges; Bridge failures.; Strains and stresses.;
Available copies: 5 / Total copies: 5
On-line resources: Suggest title for digitization;
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Structural applications of high strength concrete / by Zia, Paul,1926-(CARDINAL)167573; Schemmel, John J.(John Joseph)(CARDINAL)198895; Tallman, T.(Thomas)(CARDINAL)198034; North Carolina.Department of Transportation.(CARDINAL)145570; United States.Federal Highway Administration.(CARDINAL)139839; North Carolina State University.Center for Transportation Engineering Studies.(CARDINAL)182954;
Includes bibliographical references (pages 7-1--7-6).Final report.Sponsored by the N.C. Dept. of Transportation and the Federal Highway Administration.
Subjects: Technical reports.; High strength concrete.; Prestressed concrete.; Concrete beams.; Concrete bridges;
Available copies: 5 / Total copies: 6
On-line resources: Suggest title for digitization;
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Specification guidelines for precast/prestressed concrete bridge products / by United States.Federal Highway Administration.(CARDINAL)139839;
This document addresses the primary specification issues related to producing prestressed concrete bridge products. Much of the content is a culmination of existing codes and references, including MNL 116 "Manual for Quality Control" and various AASHTO and ASTM references. This document is not intended to be used [as] a Quality Control plan or to replace existing owner specifications, unless mutually agreed upon, in writing, by the contractor, fabricator and owner.
Subjects: Prestressed concrete construction.; Precast concrete construction.; Concrete bridges.;
Available copies: 1 / Total copies: 1
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Techniques for measuring existing long-term stresses in prestressed concrete bridges. by Overman, T. R.(CARDINAL)328729; United States.Federal Highway Administration.(CARDINAL)139839; Construction Technology Laboratories (Portland Cement Association)(CARDINAL)286967;
Includes bibliographical references (page 18).Executive summary report;Various stress measurement techniques were evaluated in this study. The evaluation included a state-of-the-art review of existing techniques and analytical studies of these techniques. Based on analytical results, the flat-jack direct stress measurement technique was evaluated in laboratory and field tests. Based on these tests, a manual of instruction was written to describe the equipment and procedures required to obtain reliable direct stress measurement. This is the Executive Summary which summarizes the findings of this research project.Sponsored by Office of Engineering & Highway Operations R&D, FHWA, and performed by Construction Technology Laboratories, under contract no.
Subjects: Technical reports.; Concrete bridges; Nondestructive testing.; Prestressed concrete;
Available copies: 1 / Total copies: 1
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A new development length equation for pretensioned strands in bridge beams and piles / by Lane, Susan N.; United States.Federal Highway Administration.(CARDINAL)139839;
Includes bibliographical references (pages 119-123).Introduction and background -- FHWA phase II research results -- Formulation of a new development length equation from FHWA results -- Correlation of new development length equation with other research results -- Summary, final recommendations, and conclusions -- Appendices -- References.Final report;In 1988, the Federal Highway Administration (FHWA) issued a memorandum that outlawed the use of 15.2-mm (0.6-in.) diameter strands, restricted the spacing of strands, and applied a multiplier to the American Association of State Highway and Transportation Officials' (AASHTO's) development length equation. This memorandum initiated considerable research on the subject of bond of pretensioned strands in concrete. Forty-one research studies have been undertaken since 1988 to clarify the issues in the memorandum. One of the studies initiated was a large research study conducted at FHWA's Structures Laboratory at the Turner-Fairbank Highway Research Center. Phase I of the study involved 50 rectangular prestressed concrete specimens, while Phase II involved 64 members: 32 AASHTO Type II prestressed concrete I-beams and 32 prestressed concrete sub-deck panels. Half of these members for both phases contained uncoated strands, while the other half contained epoxy-coated strands. Only the results from the members containing uncoated strands in rectangular specimens and beams were discussed in this report.Sponsored by Office of Engineering R&D, Federal Highway Administration. Performed by Structures Division, Federal Highway Administration. Work unit,
Subjects: Technical reports.; Concrete bridges; Concrete piling; Prestressed concrete beams.; Prestressed concrete construction.;
Available copies: 1 / Total copies: 1
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Cathodic protection field trials on prestressed concrete components, final report / by Bennett, J. E.(Jack E.)(CARDINAL)309917; Schue, Thomas J.(CARDINAL)309518; United States.Federal Highway Administration.Office of Engineering & Highway Operations Research and Development.(CARDINAL)286896; ELTECH Research Corporation.(CARDINAL)309520; Turner-Fairbank Highway Research Center.(CARDINAL)286897;
Includes bibliographical references (pages 67-68).Final report.Performed by ELTECH Research Corporation and sponsored by the Federal Highway Administration, Office of Engineering R & D under contract no.
Subjects: Technical reports.; Cathodic protection.; Concrete bridges.; Metals; Prestressed concrete.;
Available copies: 1 / Total copies: 1
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Value engineering and cost effectiveness of various Fiber Reinforced Polymer (FRP) repair systems : final report / by Rizkalla, S. H.(CARDINAL)290252; North Carolina.Department of Transportation.Research and Analysis Group.(CARDINAL)272064; United States.Federal Highway Administration.(CARDINAL)139839; North Carolina State University.Department of Civil Engineering.(CARDINAL)161088;
Includes bibliographical references (pages 185-194).Final report;Performed by Department of Civil Engineering, North Carolina State University, sponsored by North Carolina Dept. of Transportation, Research and Analysis Group;
Subjects: Technical reports.; Fiber-reinforced plastics.; Girders.; Prestressed concrete bridges; Prestressed concrete.;
Available copies: 5 / Total copies: 7
On-line resources: https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397; https://digital.ncdcr.gov/documents/detail/2347397;
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Results 1 to 10 of 40 |