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Author : Jagdish Lal Ajmani
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.E/5 ( download)
Download or read book Flexural Behavior of Pretensioned Prestressed Concrete Beams written by Jagdish Lal Ajmani and published by . This book was released on 1960 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Bryson
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)
Download or read book Flexural Behavior of Prestressed Concrete Composite Tee-beams written by James Bryson and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prestressed Tee-beams constructed by the split-beam method were tested to failure in flexure to study the behavior and ultimate strength of these beams and to compare their flexural characteristics with those of prestressed beams of conventional construction. Results showed that composite split-beams behaved similarly to the monolithically constructed beams on the basis of flexural response and ultimate load.
Author : Ashraf Elzanaty
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.E/5 ( download)
Download or read book Flexural Behavior of Unbonded Post-tensioned Partially Prestressed Concrete Beams written by Ashraf Elzanaty and published by . This book was released on 1983 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Narbey Khachaturian
Publisher :
ISBN 13 :
Total Pages : 320 pages
Book Rating : 4.:/5 (31 download)
Download or read book Flexural Behavior, Strength and Ultimate Design of Prestressed Concrete Beams written by Narbey Khachaturian and published by . This book was released on 1963 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Adi Abu-Obeidah
Publisher :
ISBN 13 :
Total Pages : 135 pages
Book Rating : 4.:/5 (1 download)
Download or read book Flexural Behavior of Concrete Beams Prestressed with Bonded and Unbonded Tendons written by Adi Abu-Obeidah and published by . This book was released on 2017 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of unbonded tendons in prestressed concrete beams has been widely utilized in bridges, parking structures, and residential buildings for strengthening, rehabilitation or repair of such members. With the growth of live load and the increase of damaged concrete members, there is a need to develop and utilize new techniques for more efficient and improved designs in prestressed concrete members. This research presents an experimental and analytical investigation for the use of combination of bonded and unbonded tendons in the same concrete members. With the availability of high strength concrete, as well as the development of new prestressing technologies, the process can be easily performed at the site for repair or capacity upgrading resulting in longer spans for the same section depth or shallower sections. There is a knowledge gap on the behavior of concrete beams prestressed with hybrid tendons and a need to fully understand their overall behavior under full service loads. The hybrid technique introduces unbonded CFRP tendons, which is resistant to corrosion. In addition, CFRP tendons exhibit linear stress-strain relationship resulting in more accurate predictions for the tendon stress at ultimate. This hybrid system presents a challenge in developing an analytical model that could predict their behavior since the unbonded tendon is not bonded with the concrete. This investigation included the testing of 15 High Strength Concrete (HSC) beams prestressed with hybrid tendons. Results from the experimental study included number of cracks, load-deflection behavior, and strains in prestressing strand, reinforcing steel, and concrete. This study emphasizes the prediction of the ultimate stress of the unbonded tendon (fps) in unbonded or hybrid system for computing the ultimate moment resistance. Finite element modeling and analysis of various beams is performed. Based on a comparison of equations available in the literature as well as code provisions with the experimental results, a simplified prediction equation for predicting the stress in the unbonded tendons at ultimate is recommended.
Author :
Publisher :
ISBN 13 :
Total Pages : 207 pages
Book Rating : 4.:/5 (97 download)
Download or read book Behavior of Prestressed Concrete Beams with CFRP Strands written by and published by . This book was released on 2016 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high cost of repairing reinforced or prestressed concrete structures due to steel corrosion has driven engineers to look for solutions. Much research has been conducted over the last two decades to evaluate the use of Fiber Reinforced Polymers (FRPs) in concrete structures. Structural engineering researchers have been testing FRP to determine their usability instead of steel for strengthening existing reinforced concrete structures, reinforcing new concrete members, and for prestressed concrete applications. The high strength-to-weight ratio of FRP materials, especially Carbon FRP (CFRP), and their non-corrosive nature are probably the most attractive features of FRPs. In this study, an experimental program was conducted to investigate the flexural behavior of prestressed concrete beams pre-tensioned with CFRP strands. The bond characteristics were examined by means of experimentally measuring transfer length, flexural bond length, and bond stress profiles. A total of four rectangular beams pre-tensioned with one 0.5-in. diameter CFRP strand were fabricated and tested under cyclic loading for five cycles, followed by a monotonically increasing load until failure. In investigating bond properties, the experimental results were compared to the equations available in the literature. The results from the four flexural tests showed that the main problem of CFRP strands, in addition to their liner-elastic tensile behavior, was lack of adequate bonding between FRP and concrete. Poor bonding resulted in early failure due to slippage between FRPs and concrete. As a result, a new technique was developed in order to solve the bonding issues and improve the flexural response of CFRP prestressed concrete beams. The new technique involved anchoring the CFRP strands at the ends of the concrete beams using a new "steel tube" anchorage system. It was concluded that the new technique solved the bond problem and improved the flexural capacity by about 46%. A computer model was created to predict the behavior of prestressed beams pre-tensioned with CFRP. The predicted behavior was compared to the experimental results. Finally, the experimental results were compared to the behavior of prestressed concrete beams pre-tensioned with steel strands as generated by the computer model. The CFRP beams showed higher strength but lower ductility.
Author : Anthony J. Wolanski
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (575 download)
Download or read book Flexural Behavior of Reinforced and Prestressed Concrete Beams Using Finite Element Analysis written by Anthony J. Wolanski and published by . This book was released on 2004 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : FADI MAAZ ALKHAIRI
Publisher :
ISBN 13 :
Total Pages : 916 pages
Book Rating : 4.3/5 (91 download)
Download or read book ON THE FLEXURAL BEHAVIOR OF CONCRETE BEAMS PRESTRESSED WITH UNBONDED INTERNAL AND EXTERNAL TENDONS (UNBONDED TENDONS, BEAMS). written by FADI MAAZ ALKHAIRI and published by . This book was released on 1991 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: from 15 different investigations. Excellent correlation was obtained between predicted vs. experimental results. The present investigation suggests that shear deformations may have some effect on the stress increase in unbonded tendons for beams having low span-to-depth ratios, while eccentricity variations in external tendons significantly affect the overall behavior for beams having high span-to-depth ratios.
Author : David Wai Sum Ho
Publisher :
ISBN 13 :
Total Pages : 392 pages
Book Rating : 4.:/5 (65 download)
Download or read book Flexural Behavior of Unbonded Prestressed Concrete Beams written by David Wai Sum Ho and published by . This book was released on 1972 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sennen Kee-sum Chow
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.E/5 ( download)
Download or read book The Behavior of Prestressed Concrete Beams Subjected to Combined Bending and Shear as Studied by the Use of Small Scale Models written by Sennen Kee-sum Chow and published by . This book was released on 1972 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : N. Rajagopalan
Publisher : CRC Press
ISBN 13 : 9780849317200
Total Pages : 512 pages
Book Rating : 4.3/5 (172 download)
Download or read book Prestressed Concrete written by N. Rajagopalan and published by CRC Press. This book was released on 2002 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simple design, low life cycle costs, and fast, easy construction are just a few of the reasons that make prestressed concrete attractive for use in bridges, water and wastewater storage tanks, ocean dock construction, flooring, and more. Prestressed Concrete covers the fundamentals of prestressing, systems of prestressing, losses, the ultimate strength of sections in flexure, shear and torsion, anchorage zone stresses, limit state concepts and holistic design of prestressed concrete elements. The book also provides information on design of determinate structures and indeterminate structures (beams and frames) inclusive of cable profiling. It discusses special structures like pipes, water tanks, etc. and the behavior of composite structures such as precast prestressed concrete beams cast- in-situ R.C. slab, along with its design provisions. Prestressed Concrete is a valuable guide for practicing engineers, students, and researchers.
Author : Edward G. Nawy
Publisher : Pearson
ISBN 13 :
Total Pages : 990 pages
Book Rating : 4.:/5 (318 download)
Download or read book Prestressed Concrete written by Edward G. Nawy and published by Pearson. This book was released on 2010 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely revised to reflect the new ACI 318-08 Building Code and International Building Code, IBC 2009, this popular book offers a unique approach to examining the design of prestressed concrete members in a logical, step-by-step trial and adjustment procedure. Integrates handy flow charts to help readers better understand the steps needed for design and analysis. Includes a revised chapter containing the latest ACI and AASHTO Provisions on the design of post-tensioned beam end anchorage blocks using the strut-and-tie approach in conformity with ACI 318-08 Code. Offers a new complete section with two extensive design examples using the strut-and-tie approach for the design of corbels and deep beams. Features an addition to the elastic method of design, with comprehensive design examples on LRFD and Standard AASHTO designs of bridge deck members for flexure, shear and torsion, conforming to the latest AASHTO specifications. Includes a revised chapter on slender columns, including a simplified load-contour biaxial bending method which is easier to apply in desiign, using moments rather than loads in the reciprocal approach. A useful construction reference for engineers.
Author : Titi Thongjen
Publisher :
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.:/5 (372 download)
Download or read book A Non-linear Finite Element Approach to Modeling the Flexural Behavior of Unbonded Prestressed Concrete Beams written by Titi Thongjen and published by . This book was released on 1996 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. C. Roshore
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by E. C. Roshore and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward F. O'Neil
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)
Download or read book Durability and Behavior of Prestressed Concrete Beams written by Edward F. O'Neil and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arthur H. Nilson
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 550 pages
Book Rating : 4.3/5 (91 download)
Download or read book Design of Prestressed Concrete written by Arthur H. Nilson and published by John Wiley & Sons. This book was released on 1978 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revision of a popular text discusses the behavior, analysis, and design of prestressed concrete structures. Changes in the Second Edition include a new emphasis on partially prestressed concrete members, flexural strength calculations, deflection calculations, crack width calculations, along with new information on high strength materials, and more. Develops an understanding of design methods used in practice and familiarity with the important provisions of the governing 1983 Building Code of the American Concrete Institute. Balance of theory and practice provides a clear survey of design principles. Problems at the end of every chapter illustrate concepts. Copyright © Libri GmbH. All rights reserved.
Author : ACI Committee 318
Publisher : American Concrete Institute
ISBN 13 : 0870312642
Total Pages : 471 pages
Book Rating : 4.8/5 (73 download)
Download or read book Building Code Requirements for Structural Concrete (ACI 318-08) and Commentary written by ACI Committee 318 and published by American Concrete Institute. This book was released on 2008 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: The quality and testing of materials used in construction are covered by reference to the appropriate ASTM standard specifications. Welding of reinforcement is covered by reference to the appropriate AWS standard. Uses of the Code include adoption by reference in general building codes, and earlier editions have been widely used in this manner. The Code is written in a format that allows such reference without change to its language. Therefore, background details or suggestions for carrying out the requirements or intent of the Code portion cannot be included. The Commentary is provided for this purpose. Some of the considerations of the committee in developing the Code portion are discussed within the Commentary, with emphasis given to the explanation of new or revised provisions. Much of the research data referenced in preparing the Code is cited for the user desiring to study individual questions in greater detail. Other documents that provide suggestions for carrying out the requirements of the Code are also cited.
