Download or read book Report on prestressed steel 7 test for the determination of tendon transmission length under static conditions written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1982-01-01 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Prestressing Steel 7 Test for the Determination of Tendon Transmission Length Under Static Conditions written by Fédération internationale de la précontrainte. Commission on Prestressing Steels and Systems and published by . This book was released on 1982 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Prestressing Steel written by Fédération internationale de la précontrainte. Commission on Prestressing Steels and Systems and published by . This book was released on 1982 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bond of Reinforcement in Concrete written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2000-01-01 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In 1993, the CEB Commission 2 Material and Behavior Modelling established the Task Group 2.5 Bond Models. It's terms of reference were ... to write a state-of-art report concerning bond of reinforcement in concrete and later recommend how the knowledge could be applied in practice (Model Code like text proposal)... {This work} covers the first part ... the state-of-art report."--Pref.
Download or read book Congress of the F ed eration Internationale de la Pr econstrainte written by Fédération internationale de la précontrainte and published by . This book was released on 1986 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PCI Journal written by and published by . This book was released on 2006 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on prestressing steel 3 losses of prestress in tendons due to steam curing of concrete written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1978-09-01 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin d information written by and published by . This book was released on 1987-04 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete written by A. E. N. Osborn and published by Transportation Research Board National Research. This book was released on 2008 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides practical tests to identify and measure residues (e.g., rust, lubricants used in manufacturing processes, or corrosion inhibitors) on the surface of steel prestressing strands and to establish thresholds for residue types found to affect the strength of the strand's bond to concrete. Key products presented here are four test methods suitable for use in a quality assurance program for the manufacture of steel prestressing strand.
Download or read book Stress Relaxation of Steel Tendons Used in Prestressed Concrete Under Conditions of Changing Applied Stress written by RJ. Glodowski and published by . This book was released on 1979 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several methods have been proposed for predicting the total prestress loss in prestressed concrete structures. Inherent in all of these methods is the concept that the applied elastic strain on the steel tendons changes with time due to creep and shrinkage of concrete. A procedure most often used to determine the steel tendon's stress relaxation contribution to total prestress loss is a time iteration technique. The stress relaxation that occurs in each time interval is predicted from an equation describing stress relaxation as a function of time and initial stress level. This equation is normally derived from data obtained from constant-strain tests as per ASTM E328. During the time iteration program, however, the initial stress level is different for each time interval because of changing elastic strains in the steel tendons due to concrete creep and shrinkage. In some procedures under consideration by the prestressed concrete industry, the actual stress on the tendon at the start of each time interval is assumed to be the correct value for initial stress. Total relaxation is then determined by a summation of the relaxation during each time interval.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1973 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book British Books in Print written by and published by . This book was released on 1985 with total page 1744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Whitaker s Cumulative Book List written by and published by . This book was released on 1984 with total page 1232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Prestressing Steel Stress corrosion cracking resistance test for prestressing tendons written by Fédération internationale de la précontrainte. Commission on Prestressing Steels and Systems and published by . This book was released on 1980 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ACI Structural Journal written by and published by . This book was released on 1992 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transfer of Prestress by Pretensioned Wire Tendons written by Paul Yeow Liong Kong and published by . This book was released on 1993 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: These relationships provide a qualitative and quantitative method of indirectly monitoring for the transmission lengths through the measurements of pull-in. Statistical inference tests proved that indented wires were superior in performance compared to plain wires, but the differences were more apparent for the pull-ins than for the transmission lengths. Comparisons on the influence of tendon size substantiated that greater pull-ins occurred for larger wires but the differences were not significant for the transmission lengths. For concrete strength at the time of transfer of less than 32 MPa, the transmission lengths and pull-ins were significantly larger than those for higher strengths. It is recommended that concrete strength at transfer be at least 32 MPa for pretensioned prestressed concrete. Apart from the maturity and strength of concrete, the quality of a mix also influenced the transmission length and there was limited data to suggest that a better grade mix despite having lower strength at a more tender age could outperform a lower grade mix with greater strength released after a longer curing period. Formulae for plain and indented wires were found by dimensional analysis which correlated the transmission length to the diameter of wire tendon and the stress/strength ratio of the prestressed beams. Pull-ins increased significantly over 6 months but the changes in the transmission lengths were small. Normalised longitudinal strain distributions did not indicate that transmission lengths would remain unchanged over time.
Download or read book Report on Prestressing Steel written by Fédération internationale de la précontrainte. Commission on Prestressing Steels and Systems and published by . This book was released on 1979 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
