The development of reliable prestressing techniques has certainly been the most important innovation in the field of structural concrete. It enabled concrete construction to compete successfully within areas that had previously been dominated by steel construction, including long-span bridges, high-rise buildings, pressure vessels and offshore structures. Today, prestressing and, in particular, post-tensioning is a mature technology, providing efficient, economic and elegant structural solutions for a wide range of applications.
Surveys indicate vast differences in the use of post-tensioning among different countries. While the wide spread can largely be explained by differences in local needs, standards, education and habits it appears that the potential offered by post-tensioning is far from being exploited, especially in building structures. Too many building structures, for which post-tensioning would provide a clearly superior solution, are conceived, designed and built as non -prestressed. For too long, non-prestressed and prestressed concrete have been treated as completely seperate entities and hence, prestressing is not yet regarded as a familiar and desirable construction option by many developers, architects, engineers and contractors.
Post-tensioning in buildings is not limited to floor slabs. Post-tensioning of foundations, transfer beams and plates, post-tensioned masonry and the combination of precast elements with cast-in-place concrete by means of post-tensioning offer other interesting opportunities. Developers, architects, engineers, contractors, educators and students will find the present report to be most informative in this regard. It describes the application of post-tensioning within the overall context of building construction and it yields a sufficient basis for corresponding preliminary designs; special information required for the final dimensioning and detailing will be given in a companion report.
VSL should be commended for continuing their tradition to disseminate state-of-the art information on post-tensioning and it is hoped that through this and related efforts an increasing number of companies and individuals will benefit from the use of posttensioning in buildings.
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This publication is intended for the use of professionals competent to evaluate the significance and limitations of its contents and who will accept responsibility for the application of the materials it contains. The Post-Tensioning Institute in publishing this document makes no warranty regarding the recommendations contained herein, including warranties of quality, worksmanship or safety, express or implied, further including, but not limited to, implied warranties or merchantability and fitness for a particular purpose.
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The objective of this workshop is to bring together leading scholars in concrete pavement research and fracture mechanics in order to develop recommendations for research needs in the development of advanced fracture mechanic concepts for concrete pavements. Based on participant presentations and discussions at the workshop, a research needs document will be written and submitted by the workshop organizers to the following organizations which can support concrete pavement research including NSF, TRB, NCHRP, FHWA and ISCP.
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Author: Jerald L. Rounds, Robert O. Segner | Size: 4.6 MB | Format:PDF | Publisher: John Wiley & Sons | Year: 2011 | pages: 464 | ISBN: 047061496X
This book covers all supervisory situations one is likely to encounter on a commercial, industrial, or institutional construction project. The book is based upon a very successful Electrical Project Supervision (EPS) training program developed by Rounds and Segner for the National Electrical Contractor?s Association and licensed to several organizations representing other construction sectors. This program has been delivered for over a decade and continues to be delivered to thousands of construction supervisors each year. The program content has consistently received outstanding reviews and evaluations in numerous different venues.
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Publishing your research in an international journal is key to your success in academia. This guide is based on a study of referees' reports and letters from journal editors on reasons why papers written by non-native researchers are rejected due to problems with English usage. It draws on English-related errors from around 5000 papers written by non-native authors, 500 abstracts by PhD students, and over 1000 hours of teaching researchers how to write and present research papers.
With easy-to-follow rules and tips, and with examples taken from published and unpublished papers, you will learn how to:
* prepare and structure a manuscript
* increase readability and reduce the number of mistakes you make in English by writing concisely, with no redundancy and no ambiguity
* plan and organize your paper, and structure each paragraph and each sentence so that the reader can easily follow the logical build-up towards various conclusions
* write a title and an abstract that will attract attention and be read
* decide what to include in the various parts of the paper (Introduction, Methodology, Discussion etc)
* select from over 700 useful phrases
* highlight your claims and contribution
* avoid plagiarism and make it 100% clear whether you are referring to your own work or someone else’s
* choose the correct tenses and style (active or passive)
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Author: Doran, D., Douglas, J. and Pratley, R. | Size: 4.67 MB | Format:PDF | Year: 2009 | pages: 338 | ISBN: 9781904445555
Abstract
Explores ways of minimising risk and advises on sources to approach to find records of existing construction. Considers preliminary investigation of an existing building or structure and what type of contract to adopt, as well as disasters, defects and potential solutions. Address restraints through town and planning legislation and includes case studies.
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Concrete repairs. Performance in service and current practice
Author: Tilly, G. P. and Jacobs, J. | Size: 5.01 MB | Format:PDF | Year: 2007 | pages: 56 | ISBN: 9781860819704
Abstract
Describes four elements of the work carried out by the CONREPNET network, whose aim is to improve the durability of concrete repairs through performance-based rehabilitation: performance of repairs in practice in order to evaluate more accurately the durability of repairs over real time, current industry practice in relation to inspection, interpretation of results and methods of repair, current research including sizes of projects, levels of funding, research topics and outcomes, and best practice, including use of national standards.
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