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The ESIS-Technical Committee 9 on Concrete was established in 1990 and has met seven times. A proposal was put to European and extra-European laboratories entitled "Scale effects and transitional failure phenomena of reinforced concrete beams in flexure" which lead to several positive responses.
The central topic discussed by the committee was that of the minimum reinforcement in concrete members. The minimum amount of reinforcement is defined as that for which "peak load at first concrete cracking" and "ultimate load after steel yielding" are equal. In this way, any brittle behaviour is avoided as well as any localized failure, if the member is not over-reinforced. In other words, there is a reinforcement percentage range, depending on the size-scale, within which the plastic limit analysis may be applied with its static and kinematic theorems.
Carpinteri, Ferro, Bosco and El-Katieb propose a LEFM model, according to which reinforcement reactions are applied directly on the crack surfaces and a compatibility condition is locally imposed on the crack opening displacement in correspondence with the reinforcement. The theoretical model is found to provide a satisfactory estimate of the minimum percentage of reinforcement that depends on the scale and enables the element in flexure to prevent brittle failure.
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Stability and Ductility of Steel Structures (SDSS’99)
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Stability and Ductility of Steel Structures (SDSS’99)
By D. Dubina, M. Ivanyi
Publisher: Elsevier Science
Number Of Pages: 648
Publication Date: 1999-08-01
ISBN-10 / ASIN: 0080430163
ISBN-13 / EAN: 9780080430164
With the gradual development of rules for designing against instability the idea emerged, in London, in 1974 to hold an International Colloquium treating every aspect of structural instability of steel structures.
There have been 17 International Colloquia Stability Sessions around the world, starting with the first one in Paris in 1972, until with the last one in Nagoya in 1997. In Nagoya it was decided to continue the series of travelling colloquia by launching the Sixth Colloquium in September 1999 with the First Session to be held at the “Politehnica” University of Timişoara, Rom??nia, which will be followed by another in the year 2000 at the Gediminas Technical University in Vilnius, Lithuania, a third one during SSRC’s Year 2000 Annual Meeting in the US, and a fourth one in Australia or New Zealand.
At present important research projects are in progress around the world, like SAC Joint Venture Project in USA, INCO-COPERNICUS “RECOS” in Europe and others, which are devoted to improve and develop new methods for the safety design of steel structures in seismic zones. Special attention is paid in Europe, USA and Japan to improve the design codes and detailing of seismic resistant steel structures.
This was the reason to organise the Session of Nagoya as “Stability and Ductility of Steel Structures” Colloquium. Romania is also a strong seismic territory and therefore, the topic of the Timişoara Session covered both stability and ductility problems. The technical programme of the SDSS’99 Colloquium in Timişoara has been split into nine working sessions.
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Numerical Analysis Using MATLAB and Excel (Third Edition)
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Computational Structural Dynamics and Earthquake Engineering
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Computational Structural Dynamics and Earthquake Engineering
Taylor & Francis | ISBN: 0415452619 | 2008-12-09 | PDF | 670 pages | 26 Mb
The intensifying need to solve complex problems in planning, designing, constructing, and managing earthquake-resistant structures requires the development of innovative methods, and ideal tools for providing accurate, yet affordable, numerical solutions. This book presents the latest findings in computational, stochastic, and structural dynamics, along with recent information on earthquake engineering. It provides a much needed reference for those engineers tackling complex problems in dynamic/ seismic analysis and design. The book contains contributions from leading experts based on papers they presented at the Conference of Computational Dynamics and Earthquake Engineering, held in Greece in 2007.
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Incredibly easy to use for both novices and pros alike, Xilisoft Video Converter has all the capabilities to give you a product with outstanding quality: convert videos of all popular formats like AVI, MPEG, WMV, DivX, MP4, H.264/AVC, AVCHD, MKV, RM, MOV, XviD, 3GP, etc., transform between MP3, WMA, WAV, RA, M4A, AAC, AC3, OGG audios, and create fascinating videos from photos. The luxuriously optimized profiles provided by this video converter make it possible to watch movies and listen to music on PSP, PS3, iPod, IPhone, Apple TV, Xbox and other digital devices.
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Bridge Construction Set is about building a bridge that doesn't break, although watching your bridge creation break and plunge a train into the watery depths below can be half the fun. In Bridge Construction Set you design and build bridges and then stress test them to see how your creations hold up under pressure. When test vehicles pass over your bridge and make it safely across you know you've succeeded. If they plummet into the river you know you need to go back to the drawing board.
The robust physics deployed in Bridge Construction Set let you build a unlimited variety of bridges. Try your hand at giant suspension bridges, complex drawbridges, multi-level train and automobile bridges and everything in between. The 3D graphics allow you to view your bridge from any angle including a first person view - it's like being strapped to the front of the train when your bridge is first tested...
Bridge Construction Set includes many types of bridge building levels in varying degrees of difficulty from simple to complex with a tutorial to get you started building bridges. A Level Editor is also included so you can create your own levels and trade them with others.
Bridge Construction Set features:
* Forty unique levels.
* Build Suspension Bridges, Draw Bridges and others.
* Building materials include cables, hydraulics and more.
* Fifteen types of vehicles that will test your bridges.
* Over forty types of 3d objects decorate the levels.
* Includes a Level editor to create your own levels.
* Includes a Map packer to create custom map packs.
* Chronic Logic sponsored bridge building Contests
Just for relax time :)
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Hardbound. Following on from the International Conference on Structural Engineering, Mechanics and Computation, held in Cape Town in April 2001, this book contains the Proceedings, in two volumes. There are over 170 papers written by Authors from around 40 countries worldwide. The contributions include 6 Keynote Papers and 12 Special Invited Papers. In line with the aims of the SEMC 2001 International Conference, and as may be seen from the List of Contents, the papers cover a wide range of topics under a variety of themes. There is a healthy balance between papers of a theoretical nature, concerned with various aspects of structural mechanics and computational issues, and those of a more practical nature, addressing issues of design, safety and construction. As the contributions in these Proceedings show, new and more efficient methods of structural analysis and numerical computation are being explored all the time, while exciting structural materials s
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Understanding Building Failures
By Douglas/Ransom
Publisher: Taylor & Francis
Number Of Pages: 326
Publication Date: 2007-06-22
ISBN-10 / ASIN: 0415370825
ISBN-13 / EAN: 9780415370820
Binding: Hardcover
This new edition of W.H. Ransom’s classic short textbook provides a solid introduction to the study of defects in buildings and, in consequence, to good practice and to conservation and repair. Building failures continue to occur, despite continuing experience and growing knowledge in the industry, and they may even be on the increase due to factors such as cost-cutting measures, the inadequate testing of innovate products and techniques, a lack of maintenance, and user abuse and misuse.
New material includes an outline of the principles of building pathology; new sections on deterioration mechanisms, service life prediction and dampness investigation; and a glossary and bibliography. Practitioners and students will find this an excellent source of guidance and information for investigating and avoiding building failures.
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