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Concrete Structures For Wind Turbines

Author: Jürgen Grünberg
Publisher: John Wiley & Sons
ISBN: 3433603308
Size: 37.17 MB
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The wind energy industry in Germany has an excellent global standing when it comes to the development and construction of wind turbines. Germany currently represents the world's largest market for wind energy. The ongoing development of ever more powerful wind turbines plus additional requirements for the design and construction of their offshore foundation structures exceeds the actual experiences gained so far in the various disciplines concerned. This book gives a comprehensive overview for planning and structural design analysis of reinforced concrete and pre-stressed concrete wind turbine towers for both, onshore and offshore wind turbines. Wind turbines represent structures subjected to highly dynamic loading patterns. Therefore, for the design of loadbearing structures, fatigue effects - and not just maximum loads - are extremely important, in particular in the connections and joints of concrete and hybrid structures. There multi-axial stress conditions occure which so far are not covered by the design codes. The specific actions, the nonlinear behaviour and modeling for the structural analysis are explained. Design and verification with a focus on fatigue are adressed. The chapter Manufacturing includes hybrid structures, segmental construction of pre-stressed concrete towers and offshore wind turbine foundations. Selected chapters from the German concrete yearbook are now being published in the new English "Beton-Kalender Series" for the benefit of an international audience. Since it was founded in 1906, the Ernst & Sohn "Beton-Kalender" has been supporting developments in reinforced and prestressed concrete. The aim was to publish a yearbook to reflect progress in "ferro-concrete" structures until - as the book's first editor, Fritz von Emperger (1862-1942), expressed it - the "tempestuous development" in this form of construction came to an end. However, the "Beton-Kalender" quickly became the chosen work of reference for civil and structural engineers, and apart from the years 1945-1950 has been published annually ever since.

Ballastless Tracks

Author: Konstantin Geisler
Publisher: John Wiley & Sons
ISBN: 3433029938
Size: 22.53 MB
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Due to increasing traffic flows the extension of transport infrastructure with rail roads and high speed lines is an ongoing process worldwide. Ballastless track systems with concrete slabs are used more and more. Following the first trials in the 1970s and more than four decades of R&D work on ballastless track, the level of development is such that it can be confirmed that ballastless track is suitable for use as an alternative to ballasted track. This book makes a contribution to the state of the art of ballastless track by describing the basics for designing the ballastless track. Important advice is provided regarding the construction of ballastless track on earthworks and in tunnels. There is also a description of the technical history of the development of ballastless track on bridges and the ensuing findings for bridge design. The state of the art of ballastless track for switches, important information on details concerning drainage, transitions, accessibility for road vehicles and experience gleaned from maintenance round off the work. Selected chapters from the German concrete yearbook are now being published in the new English "Beton-Kalender Series" for the benefit of an international audience. Since it was founded in 1906, the Ernst & Sohn "Beton-Kalender" has been supporting developments in reinforced and prestressed concrete. The aim was to publish a yearbook to reflect progress in "ferro-concrete" structures until - as the book's first editor, Fritz von Emperger (1862-1942), expressed it - the "tempestuous development" in this form of construction came to an end. However, the "Beton-Kalender" quickly became the chosen work of reference for civil and structural engineers, and apart from the years 1945-1950 has been published annually ever since.

Design Of Fastenings For Use In Concrete

Author: Rainer Mall?e
Publisher: John Wiley & Sons
ISBN: 3433602719
Size: 71.26 MB
Format: PDF
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The European pre-standard CEN/TS 1992-4 for the design of fastenings by means of headed studs, anchor channels as well as post-installed mechanical and chemical anchors is ready for use. The background and interpretation of the provisions related to the determination of actions and resistances based on limit state design, durability, fire resistance, fatigue and earthquake actions as required by CEN/TS 1992 are described in detail. Selected chapters from the German concrete yearbook are now being published in the new English "Beton-Kalender Series" for the benefit of an international audience. Since it was founded in 1906, the Ernst & Sohn "Beton-Kalender" has been supporting developments in reinforced and prestressed concrete. The aim was to publish a yearbook to reflect progress in "ferro-concrete" structures until - as the book's first editor, Fritz von Emperger (1862-1942), expressed it - the "tempestuous development" in this form of construction came to an end. However, the "Beton-Kalender" quickly became the chosen work of reference for civil and structural engineers, and apart from the years 1945-1950 has been published annually ever since.

Design And Construction Of Nuclear Power Plants

Author: Rüdiger Meiswinkel
Publisher: John Wiley & Sons
ISBN: 3433602751
Size: 13.11 MB
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Despite all the efforts being put into expanding renewable energy sources, large-scale power stations will be essential as part of a reliable energy supply strategy for a longer period. Given that they are low on CO2 emissions, many countries are moving into or expanding nuclear energy to cover their baseload supply. Building structures required for nuclear plants whose protective function means they are classified as safety-related, have to meet particular construction requirements more stringent than those involved in conventional construction. This book gives a comprehensive overview from approval aspects given by nuclear and construction law, with special attention to the interface between plant and construction engineering, to a building structure classification. All life cycle phases are considered, with the primary focus on execution. Accidental actions on structures, the safety concept and design and fastening systems are exposed to a particular treatment. Selected chapters from the German concrete yearbook are now being published in the new English "Beton-Kalender Series" for the benefit of an international audience. Since it was founded in 1906, the Ernst & Sohn "Beton-Kalender" has been supporting developments in reinforced and prestressed concrete. The aim was to publish a yearbook to reflect progress in "ferro-concrete" structures until - as the book's first editor, Fritz von Emperger (1862-1942), expressed it - the "tempestuous development" in this form of construction came to an end. However, the "Beton-Kalender" quickly became the chosen work of reference for civil and structural engineers, and apart from the years 1945-1950 has been published annually ever since.

Beton Kalender 2017

Author: Konrad Bergmeister
Publisher: John Wiley & Sons
ISBN: 343360682X
Size: 34.46 MB
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Beton unterliegt einem Wandel der Anforderungen und entwickelt selbst Innovationskraft mit Auswirkungen auf Gestaltung bis hin zur Baustellenlogistik. Die Entwicklung von hochfesten, ultrahochfesten und selbstverdichtenden Betonen, die gestiegenen Qualitï¿1⁄2tsanforderungen und die zu erwartende Knappheit natï¿1⁄2rlicher Gesteinskï¿1⁄2rnungen setzen neue Anforderungsmaï¿1⁄2stï¿1⁄2be an Entwurfskonzepte. Die Anforderungen an die Dauerhaftigkeit von Beton zielen insbesondere auf eine gute Homogenitï¿1⁄2t und auf eine relativ hohe Dichte. Dieses Ziel kann nur im Zusammenwirken von Konstruktion, Statik, Herstellung, Transport, Fï¿1⁄2rderung, Verarbeitung und Nachbehandlung erreicht werden. Die Anforderungen an die Wirtschaftlichkeit von Betontragwerken kï¿1⁄2nnen durch Optimierung von Prozessen und Automatisierung in der Baulogistik erfï¿1⁄2llt werden - der Bauablauf im Jahr 2017 unterscheidet sich erheblich von Baustellen vor 50 oder gar 100 Jahren. Immer hï¿1⁄2here erzielbare Festigkeiten ermï¿1⁄2glichen schlankere Bauteile. Auch die Gestaltbarkeit von Tragwerken wird vielseitiger, diese erfordert aber gleichzeitig eine leichte Verarbeitbarkeit. Vor diesem Hintergrund enthï¿1⁄2lt der Beton-Kalender 2017 eine Reihe von Beitrï¿1⁄2gen ï¿1⁄2ber Betonherstellung, aktuelle Produkterweiterungen sowie verschiedene Anwendungen von Spezialbetonen und deren Qualitï¿1⁄2tssicherung sowie erstmalig ï¿1⁄2ber die bautechnische Anwendung von tragenden Kunststoffbauteilen. Auï¿1⁄2erdem wurde der aktuelle Wissensstand ï¿1⁄2ber Spannbeton aufgearbeitet. In bewï¿1⁄2hrter Weise werden aktuelle europï¿1⁄2ische und nationale Normen in konsolidierten Kurzfassungen fortgefï¿1⁄2hrt. Der Beton-Kalender 2017 ist eine besondere Fundgrube fï¿1⁄2r Ingenieure in Planungsbï¿1⁄2ros und in der Bauindustrie.

Verbindungen Im Stahl Und Verbundbau

Author: Rolf Kindmann
Publisher: John Wiley & Sons
ISBN: 3433602549
Size: 28.79 MB
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Zentrale Themen des Buches sind geschwei?te und geschraubte Verbindungen im Stahl- und Verbundbau. Dar?ber hinaus werden auch andere Verbindungstechniken und Verbindungsmittel behandelt, wie z. B.: Kontakt, Kopfbolzend?bel, Setzbolzen, Niete, Augenst?be, Bolzen, Hammerschrauben, Zuganker, D?bel und Ankerschienen. Auf die Methoden und Vorgehensweisen zur Bemessung und konstruktiven Durchbildung von Verbindungen wird ausf?hrlich eingegangen. Neben den allgemeing?ltigen Grundlagen werden die Regelungen der DIN 18800 und der Eurocodes behandelt und Erl?uterungen zum Verst?ndnis gegeben. Zahlreiche Konstruktions- und Berechnungsbeispiele auf Grundlage der Eurocodes zeigen die konkrete Anwendung und Durchf?hrung der Tragsicherheitsnachweise.

Beton Kalender 2013

Author: Konrad Bergmeister
Publisher: John Wiley & Sons
ISBN: 3433030006
Size: 57.69 MB
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The durable and economic design of structures today includes not only the verification of structural stability but also of the serviceability for the planned lifetime including the consideration of time-dependent actions and material properties of a structure.

Ausf Hrung Von Stahlbauten

Author: Lothar Bär
Publisher: John Wiley & Sons
ISBN: 343360410X
Size: 27.35 MB
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Two new standards are superseding DIN 18800-7; they are of five times the extent and demand a different way of working. This commentary follows the structure of the standards, includes background information, important excerpts from the quoted standards and examples.

Beton Kalender 2011

Author: Konrad Bergmeister
Publisher: John Wiley & Sons
ISBN: 3433605688
Size: 49.43 MB
Format: PDF, Kindle
View: 1925
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Structures for power generation are being designed and built at local, regional and international scales - the title provides the necessary knowledge for planning and design. Also: fibre-reinforced concretes incl. the March 10 DAfStb guideline on steel fibre reinforced concrete.

Faserbeton

Author: Bernhard Wietek
Publisher: Springer-Verlag
ISBN: 3658190795
Size: 17.69 MB
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Mit diesem Buch soll dem Anwender eine Hilfe gegeben, werden den Faserbeton als Baustoff entsprechend seinen Eigenschaften bei einem Bauwerk richtig einzusetzen um somit dem Bauherrn kostengünstig ein langlebiges Bauwerk zu schaffen. Faserbeton als Erweiterung des Betons bietet für die Baupraxis erhebliche Vorteile, die ausgehend von den Materialeigenschaften eine sehr hohe Lebensdauer ermöglichen und somit gerade für dauerhafte Bauwerke von großem Vorteil sind. Faserbeton wirkt mit seinen Materialeigenschaften über den gesamten Querschnitt und bietet somit äußeren Angriffen auch Schutz vor innerer Zerstörung. Es ist ein Baustoff, der seine volle statische Wirkung im ungerissenen Zustand ähnlich den meisten anderen Baustoffen wie Holz, Stahl, Glas u.a. erreicht. Im Buch Stahlfaserbeton wurde ein erster Weg für die Bemessung begangen, der in der Praxis nicht ganz nachvollziehbar war. Daher wurde nun die Berechnung des Faserbetons wesentlich umfangreicher jedoch besser nach vollziehbar gestaltet und auf sämtliche in der Praxis in Verwendung befindlichen Fasertypen erweitert.