Concrete Structures For Wind Turbines

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Concrete Structures For Wind Turbines

Author : Jürgen Grünberg
ISBN : 9783433603307
Genre : Technology & Engineering
File Size : 26.67 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.
Category: Technology & Engineering

Concrete Structures For Wind Turbines

Author : Jürgen Grünberg
ISBN : 9783433603314
Genre : Technology & Engineering
File Size : 63.57 MB
Format : PDF
Download : 468
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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.
Category: Technology & Engineering

Wind Energy Explained

Author : James F. Manwell
ISBN : 0470686286
Genre : Technology & Engineering
File Size : 46.82 MB
Format : PDF
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Wind energy’s bestselling textbook- fully revised. This must-have second edition includes up-to-date data, diagrams, illustrations and thorough new material on: the fundamentals of wind turbine aerodynamics; wind turbine testing and modelling; wind turbine design standards; offshore wind energy; special purpose applications, such as energy storage and fuel production. Fifty additional homework problems and a new appendix on data processing make this comprehensive edition perfect for engineering students. This book offers a complete examination of one of the most promising sources of renewable energy and is a great introduction to this cross-disciplinary field for practising engineers. “provides a wealth of information and is an excellent reference book for people interested in the subject of wind energy.” (IEEE Power & Energy Magazine, November/December 2003) “deserves a place in the library of every university and college where renewable energy is taught.” (The International Journal of Electrical Engineering Education, Vol.41, No.2 April 2004) “a very comprehensive and well-organized treatment of the current status of wind power.” (Choice, Vol. 40, No. 4, December 2002)
Category: Technology & Engineering

Offshore Wind Farms

Author : Chong Ng
ISBN : 9780081007808
Genre : Technology & Engineering
File Size : 74.91 MB
Format : PDF
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Offshore Wind Farms: Technologies, Design and Operation provides the latest information on offshore wind energy, one of Europe’s most promising and quickly maturing industries, and a potentially huge untapped renewable energy source which could contribute significantly towards EU 20-20-20 renewable energy generation targets. It has been estimated that by 2030 Europe could have 150GW of offshore wind energy capacity, meeting 14% of our power demand. Offshore Wind Farms: Technologies, Design and Operation provides a comprehensive overview of the emerging technologies, design, and operation of offshore wind farms. Part One introduces offshore wind energy as well as offshore wind turbine siting with expert analysis of economics, wind resources, and remote sensing technologies. The second section provides an overview of offshore wind turbine materials and design, while part three outlines the integration of wind farms into power grids with insights to cabling and energy storage. The final section of the book details the installation and operation of offshore wind farms with chapters on condition monitoring and health and safety, amongst others. Provides an in-depth, multi-contributor, comprehensive overview of offshore technologies, including design, monitoring, and operation Edited by respected and leading experts in the field, with experience in both academia and industry Covers a highly relevant and important topic given the great potential of offshore wind power in contributing significantly to EU 20-20-20 renewable energy targets
Category: Technology & Engineering

The Cost Of Corrosion In China

Author : Baorong Hou
ISBN : 9789813293540
Genre : Technology & Engineering
File Size : 51.67 MB
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This book comprehensively covers corrosion and corrosion protection in China in the areas including infrastructure, transportation, energy, water environment, as well as manufacturing and public utilities. Furthermore, it presents a major consulting project of Chinese Academy of Engineering, which was the largest corrosion investigation project in Chinese history, including the corresponding methods, processes and corrosion protection strategies, and provides valuable information for numerous industries. Sharing essential insights into corrosion prediction and decision-making, this book will help to decrease costs and extend the service life of equipment and facilities; accordingly, it will benefit scientists and engineers working on corrosion research and protection, as well as economists and government employees.
Category: Technology & Engineering

Thermal Cracking Of Massive Concrete Structures

Author : Eduardo M.R. Fairbairn
ISBN : 9783319766171
Genre : Technology & Engineering
File Size : 72.2 MB
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This book provides a State of the Art Report (STAR) produced by RILEM Technical Committee 254-CMS ‘Thermal Cracking of Mas-sive Concrete Structures’. Several recent developments related to the old problem of understanding/predicting stresses originated from the evolution of the hydration of concrete are at the origin of the creation this technical committee. Having identified a lack in the organization of up-to-date scientific and technological knowledge about cracking induced by hydration heat effects, this STAR aims to provide both practitioners and scientists with a deep integrated overview of consolidated knowledge, together with recent developments on this subject.
Category: Technology & Engineering

Frontiers In Offshore Geotechnics Ii

Author : Susan Gourvenec
ISBN : 9780203830079
Genre : Technology & Engineering
File Size : 30.62 MB
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Frontiers in Offshore Geotechnics II comprises the Proceedings of the Second International Symposium on Frontiers in Offshore Geotechnics (ISFOG), organised by the Centre for Offshore Foundation Systems (COFS) and held at the University of Western Australia (UWA), Perth from 8 10 November 2010. The volume addresses current and emerging challenges
Category: Technology & Engineering

Wind Turbines

Author : Erich Hau
ISBN : 9783642271519
Genre : Science
File Size : 56.16 MB
Format : PDF, ePub
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Wind Turbines addresses all those professionally involved in research, development, manufacture and operation of wind turbines. It provides a cross-disciplinary overview of modern wind turbine technology and an orientation in the associated technical, economic and environmental fields. It is based on the author's experience gained over decades designing wind energy converters with a major industrial manufacturer and, more recently, in technical consulting and in the planning of large wind park installations, with special attention to economics. The second edition accounts for the emerging concerns over increasing numbers of installed wind turbines. In particular, an important new chapter has been added which deals with offshore wind utilisation. All advanced chapters have been extensively revised and in some cases considerably extended
Category: Science

Dynamic Behaviour Of Concrete Structures

Author : G. P. Tilly
ISBN : WISC:89014702609
Genre : Technology & Engineering
File Size : 78.11 MB
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The engineering development of concrete structures has reached the stage where dynamic behaviour could be critical to design. Hitherto dynamic behaviour has been a preoccupation of steel designers because of the lighter weight, lower flexibility and lower damping of steel assemblages. Also steel has been used for the more demanding applications where there is less margin for error. However, this is now changing and with the introduction of higher strength materials and more advanced designs, concrete is becoming used in situations that would previously have been the preserve of steel. Designers, researchers and students will therefore find the publication of this volume particularly timely. It addresses the question of when to treat a design or analysis problem as being one of statics or dynamics. The fundamental principles of dynamic analysis of single- and multi-degree-of-freedom systems are explained and worked examples are given. Defined and explained are the different types of dynamic loading (mechanical plant, wind, waves and earthquakes) and the effects, structural fatigue, and human discomfort.
Category: Technology & Engineering

Tailor Made Concrete Structures

Author : Joost C. Walraven
ISBN : 1439828415
Genre : Technology & Engineering
File Size : 70.78 MB
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In recent years knowledge of concrete and concrete structures has increased, as has its applications. New types of concrete challenged scientists and engineers, and ecological constraints encouraged the implementation of life cycle design of concrete structures, moving the focus more and more to maintenance and uprating of structures. And since buildings are not only designed for safety and serviceability, but also for flexibility and adaptability, the design of performance based materials and structures has become more and more important. Tailor Made Concrete Structures. New Solutions for our Society comprises the proceedings of the International fib Symposium 2008 (Amsterdam, 19-22 May 2008), and considers these new perspectives and developments, including sections on new materials (i.e. fire resisting concrete, ultra-high performance fibered concrete, textile reinforced concrete, bacteria-based self healing concrete) and codes for the future (i.e. the American P2P Iniative, fibre-reinforced polymer (FRP) applications in construction, Codes for SFRC Structures). The book includes contributions from leading scientists and professionals in concrete and concrete structures worldwide, and covers: – Life cycle design – Design strategies for the future – Underground structures – Monitoring and Inspection – Diagnosis – Innovative materials – Codes for the future – Modifying and adapting structures – Architectural Concrete – Developing a modern infrastructure – Designing structures against extreme loads – Increasing the speed of construction Tailor Made Concrete Structures. New Solutions for our Society includes the state-of-the-art in research on concrete and concrete structures, and will be invaluable to professionals, structural engineers and scientists.
Category: Technology & Engineering

Design Ofthe Structure Of A 100 Kw Floatable Offshore Wind Turbine

Author : Álvaro Prida Guillén
ISBN : OCLC:1120473014
Genre :
File Size : 65.6 MB
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Windcrete is a new structural technology developed at the UPC BarcelonaTech (Barcelona, Spain) that pretends to introduce concrete floating platforms for offshore wind energy production in the market. Using this concept, in this thesis it is designed the spar platform of a Floatable Offshore Wind Turbine (FOWT) that is going to be located off the coast of Tarragona. To carry out the structural design, two critical situations are considered. The first one takes place during the stevedoring operations when moving the structure from the quay to the sea. The second considers the FOWT in operation, assuming Severe Sea State (SSS) and wind speed at rated (maximum production of energy). Hence, an analysis of stresses must be done simultaneously for both situations, adjusting the design to satisfy the resistance conditions. The pre-stressed concrete structure has been designed for Serviceability Limit State (SLS). It also has been checked the resistance of the structure in Ultimate Limit Stress (ULS). Finally, a first estimation of the budget has been developed. It has permitted the determination of the items that have more influence in the project costs.
Category:

Green Walls In High Rise Buildings

Author : Antony Wood, Payam Bahrami & Daniel Safarik
ISBN : 9781864705935
Genre : Architecture
File Size : 83.63 MB
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The Council on Tall Buildings and Urban Habitat has produced four Technical Guides to date, since the series launched in late 2012. Each of these guides is the product of a CTBUH Working Group—committees formed specifically to address focused topical subjects in the industry. The intention of each guide is the same—to provide working knowledge to the typical building owner or professional who wants a better understanding of available options for improving tall buildings, and what affects their design. The object of the series is to provide a tool-kit for the creation of better-performing tall buildings, and to spread the understanding of the considerations that need to be made in designing tall. This technical guide offers an extensive overview of the use of vertical vegetation in high-rise buildings, an indepth analysis of green walls, definitions and typology, including standards, policies and incentives. It features comprehensive case studies, along with architectural theories of the public and private benefits of green walls. The book delves into architect-design considerations and limitations, the effects of green walls on energy efficiencies and includes recommendations and future research.
Category: Architecture

Dynamic Of Civil Engineering And Transport Structures And Wind Engineering

Author : Kamila Kotrasova
ISBN : 9783038265801
Genre : Technology & Engineering
File Size : 34.20 MB
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Collection of selected, peer reviewed papers from the 6th International Scientific Conference on Dynamic of Civil Engineering and Transport Structures and Wind Engineering (DYN-WIND 2014), May 25-29, 2014, Donovaly, Slovak Republic. Volume is indexed by Thomson Reuters CPCI-S (WoS). The 60 papers are grouped as follows: Chapter 1: Dynamics of Civil Engineering and Transport Structures, Chapter 2: Wind Engineering
Category: Technology & Engineering

Wind Energy

Author : Joachim Peinke
ISBN : 9783540338666
Genre : Science
File Size : 67.24 MB
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This book is comprised of the proceedings of the Euromech Colloquium 464b "Wind Energy". It comprises reports on basic research, as well as research related to the practical exploitation and application of wind energy. The book describes the atmospheric turbulent wind condition on different time scales, and the interaction of wind turbines with both wind and water flows. These influence the design, operation and maintenance of offshore wind turbines.
Category: Science

Hybrid Anisotropic Materials For Wind Power Turbine Blades

Author : Yosif Golfman
ISBN : 9781439868584
Genre : Science
File Size : 76.74 MB
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Based on rapid technological developments in wind power, governments and energy corporations are aggressively investing in this natural resource. Illustrating some of the crucial new breakthroughs in structural design and application of wind energy generation machinery, Hybrid Anisotropic Materials for Wind Power Turbine Blades explores new automated, repeatable production techniques that expand the use of robotics and process controls. These practices are intended to ensure cheaper fabrication of less-defective anisotropic material composites used to manufacture power turbine blades. This book covers new methods of casting or pultrusion that reduce thickness in the glass- and graphite-fiber laminate prepregs used in load-bearing skin blades and web shear spars. This optimized process creates thinner, more cost-effective prepegs that still maintain strength and reliability. The book also addresses a wide range of vital technical topics, including: Selection of carbon/fiberglass materials Estimation of combination percentages Minimization and optimal placement of shear webs (spars) Advantages of resin, such as lower viscosity and curing time Strength and manufacturing criteria for selecting anisotropic materials and turbine blade materials Analysis of dynamic fatigue life and vibration factors in blade design NDE methods to predict and control deflections, stiffness, and strength Written by a prolific composite materials expert with more than 40 years of research experience, this reference is invaluable for a new generation of composite designers, graduate students, and industry professionals involved in wind power system design. Assessing significant required changes in transmission, manufacturing, and markets, this resource outlines innovative methods to help the U.S. Department of Energy meet its goal of having wind energy account for 20 percent of total generated energy by 2030.
Category: Science

Progress In Structures

Author : Xin Gang Zhou
ISBN : 9783038138358
Genre : Technology & Engineering
File Size : 69.27 MB
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The present volumes contain selected papers which offer up-to-date, comprehensive and state-of-the art information on the fields of Structural Engineering; Monitoring and Control of Structures; Structural Rehabilitation, Retrofitting and Strengthening; Reliability and Durability of Structures; Seismic Engineering; Disaster Prevention and Mitigation; Computational Mechanics. The work thus provides invaluable insights into the current possibilities existing in these fields.
Category: Technology & Engineering