Loss Of Prestress And Camber Of Non Composite And Composite Prestressed Concrete Structures
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Loss Of Prestress And Camber Of Non Composite And Composite Prestressed Concrete Structures
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Author : Dan E. Branson
language : en
Publisher:
Release Date : 1970
Loss Of Prestress And Camber Of Non Composite And Composite Prestressed Concrete Structures written by Dan E. Branson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Composite construction categories.
Loss Of Prestress Camber And Deflection Of Non Composite And Composite Structures Using Different Weight Concretes Final Report
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Author : D. E. Branson
language : en
Publisher:
Release Date : 1970
Loss Of Prestress Camber And Deflection Of Non Composite And Composite Structures Using Different Weight Concretes Final Report written by D. E. Branson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Composite construction categories.
Time Dependent Deformation Of Non Composite And Composite Prestressed Concrete Structures
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Author : Dan E. Branson
language : en
Publisher:
Release Date : 1970
Time Dependent Deformation Of Non Composite And Composite Prestressed Concrete Structures written by Dan E. Branson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Bridges categories.
Loss Of Prestress Camber And Deflection Of Non Composite And Composite Structures Using Different Weight Concretes
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Author : Dan E. Branson
language : en
Publisher:
Release Date : 1970
Loss Of Prestress Camber And Deflection Of Non Composite And Composite Structures Using Different Weight Concretes written by Dan E. Branson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Composite construction categories.
Modern Prestressed Concrete
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Author : James R. Libby
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Modern Prestressed Concrete written by James R. Libby and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
This book was written with a dual purpose, as a reference book for practicing engineers and as a textbook for students of prestressed concrete. It represents the fifth generation of books on this subject written by its author. Significant additions and revisions have been made in this edition. Chapters 2 and 3 contain new material intended to assist the engineer in understanding factors affecting the time-dependent properties of the reinforcement and concrete used in prestressing concrete, as well as to facilitate the evaluation of their effects on prestress loss and deflection. Flexural strength, shear strength, and bond of prestressed concrete members were treated in a single chapter in the of flexural strength has third edition. Now, in the fourth edition, the treatment been expanded, with more emphasis on strain compatibility, and placed in Chapter 5 which is devoted to this subject alone. Chapter 6 of this edition, on flexural-shear strength, torsional strength, and bond of prestressed reinforce ment, was expanded to include discussions of Compression Field Theory and torsion that were not treated in the earlier editions. In similar fashion, expanded discussions of loss of prestress, deflection, and partial prestressing now are presented separately, in Chapter 7. Minor additions and revisions have been made to the material contained in the remaining chapters with the exception of xv xvi I PREFACE Chapter 17. This chapter, which is devoted to construction considerations, has important new material on constructibility and tolerances as related to prestressed concrete.
Time Dependent Deformation Of Non Composite And Composite Sand Lightweight Prestressed Concrete Structures
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Author : Dan E. Branson
language : en
Publisher:
Release Date : 1969
Time Dependent Deformation Of Non Composite And Composite Sand Lightweight Prestressed Concrete Structures written by Dan E. Branson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Bridges categories.
Presented in this report is an investigation of the use of "sand-lightweight" concrete in prestressed concrete structures. The sand-lightweight concrete consists of 100% sand substitution for fines, along with Idealite coarse and medium lightweight aggregate and Type I Portland Cement. The study is divided into three parts: a materials study of the concrete itself, a laboratory study of the behavior of both non-composite (5 beams) and composite (4 beams) prestressed beams, and the field measurement of camber of prestressed bridge girders (5 girders). The test period for the laboratory beams was 5 months, although the data collection is continuing for 3 of the beams. The test period included in this report for the bridge girders was 4 months. The laboratory beams were designed in three groups (3 beams in each group) to investigate the loss of prestress, initial and time-dependent camber, load-deflection behavior, and effect of different slab casting schedules. Of principal interest in this Phase I study is the time-dependent behavior of sand-lightweight concrete as a material and as used in prestressed structures. This includes the loss of prestress and camber of members that undergo rather high initial strains (due to both high initial stresses and relatively low modulus of elasticity); the effect of the composite deck in reducing the stress level and corresponding creep rate and loss of prestress; and the effect of the time of casting the composite slab, since the rate of creep, loss of prestress, and camber growth are quite different before and after the slab is cast. Design procedures are presented for the following: 1. Calculation of creep and shrinkage of the sand-lightweight concrete of this project at any time after casting, including ultimate values. An indication is also given of the calculation of creep and shrinkage at any time after casting, including ultimate values, for normal weight, sand-lightweight, and all-lightweight concrete in general. 2. Both theoretical and approximate methods for calculating camber of non-composite and composite prestressed structures. Results computed by these methods are shown to be in reasonably good agreement with the control specimen data, the laboratory beam data, and the bridge girder data.
Journal Prestressed Concrete Institute
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Author : Prestressed Concrete Institute
language : en
Publisher:
Release Date : 1982
Journal Prestressed Concrete Institute written by Prestressed Concrete Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Prestressed concrete categories.
Dictionary Catalog Of The Department Library
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Author : United States. Department of the Interior. Library
language : en
Publisher:
Release Date : 1969
Dictionary Catalog Of The Department Library written by United States. Department of the Interior. Library and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Library catalogs categories.
Time Dependent Behavior Of Noncomposite And Composite Post Tensioned Concrete Girder Bridges
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Author : A. I. Fadl
language : en
Publisher:
Release Date : 1976
Time Dependent Behavior Of Noncomposite And Composite Post Tensioned Concrete Girder Bridges written by A. I. Fadl and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Bridges, Concrete categories.
Artificial Neural Network Based Designs Of Prestressed Concrete And Composite Structures
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Author : Won‐Kee Hong
language : en
Publisher: CRC Press
Release Date : 2023-09-25
Artificial Neural Network Based Designs Of Prestressed Concrete And Composite Structures written by Won‐Kee Hong and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-25 with Technology & Engineering categories.
This book introduces artificial neural network (ANN)-based Lagrange optimization techniques for a structural design of prestressed concrete structures based on Eurocode 2, and composite structures based on American Institute of Steel Construction and American Concrete Institute standards. The book provides robust design charts for prestressed concrete structures, which are challenging to achieve using conventional design methods. Using ANN-based design charts, the holistic design of a post-tensioned beam is performed to optimize design targets (objective functions), while calculating 21 forward outputs, in arbitrary sequences, from 21 forward inputs. Applies the powerful tools of ANN to the optimization of prestressed concrete structures and composite structures including columns and beams Multi-objective optimizations (MOO) of prestressed concrete beams are performed using an ANN-based Lagrange algorithm Offers a Pareto frontier using an ANN-based MOO for composite beams and composite columns sustaining multi-biaxial loads Heavily illustrated in color and with diverse practical design examples in line with EC2, ACI, and ASTM codes The book offers optimal solutions for structural designers and researchers, enabling readers to construct design charts to minimize their own design targets under various design requirements based on any design code.