Download or read book Aerodynamics of Large Bridges written by Allan Larsen and published by Routledge. This book was released on 2017-10-19 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: As bridges spans get longer, lighter and more slender, aerodynamic loads become a matter of serious study. This volume of proceedings reflect the co-operation between civil and mechanical engineering and meteorology in this field.
Download or read book Long Span Bridges and Aerodynamics written by Toshio Miyata and published by Springer. This book was released on 1999-07 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The completion of the Akashi Kaikyo Bridge connecting the Japanese islands of Honshu and Shikoku is a milestone in the history of bridge engineering and wind-resistant design. With a main span of 1900 meters, it is the longest suspension bridge in the world. As the April 1998 inauguration of the Akashi Kaikyo Bridge approached, the International Seminar on Long-Span Bridge Aerodynamics Perspective 8 was held in Kobe, Japan, where engineers and researchers from Japan and Europe met to discuss the next generation of long-span bridges and their aerodynamics. In the seminar's papers compiled in this volume, a major topic is long-span bridge projects, including perspectives from Europe and the East Asia, a discussion of high-strength, high-performance steels, and a look at the challenges of the future. A second major topic is structural and aerodynamic design, including technical details of the wind-resistant design of the Akashi Kaikyo Bridge and other long-span bridges in the world.
Download or read book The Effects of Turbulence on the Aerodynamics of Long span Bridges written by Frederick Louis Haan and published by . This book was released on 2000 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Aerodynamics of Long Span Bridges written by John Peter Charles King and published by . This book was released on 2003 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Aeroelasticity written by J. A. Jurado and published by WIT Press. This book was released on 2011 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to the study of an aeroelastic phenomenon of cable supported long span bridges known as flutter, and proposes very innovative design methodologies, such as sensitivity analysis and optimization techniques, already utilized successfully in automobile and aerospace industries. The topic of long-span suspension and cable-stayed bridges is currently of great importance. These types of bridge pose great technical difficulties due to their slenderness and often great dimension. Therefore, these bridges tend to have problems caused by natural forces such as wind loads, some of which we have witnessed in our history, and we are currently seeing a very high incidence of bridge construction to overcome geographical obstacles such as bays, straits, or great estuaries. Therefore, it seems very appropriate to write a book showing the current capability of analysis and design, when up until now, the information could only be found partially in technical articles. This book will be useful for bridge design engineers as well as researchers working in the field. This book only requires previous knowledge of structural finite element models and dynamics, and it is advisable to have some previous knowledge in bridge engineering. Nevertheless, this book is very self-contained in such a way that all the information necessary to understand the theoretical developments is presented without the need of additional bibliography.
Download or read book Theory of Bridge Aerodynamics written by Einar Strømmen and published by Springer Science & Business Media. This book was released on 2010-07-15 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this second edition a new chapter has been added covering the buffeting theory in a finite element format. The motivation for this has been that a finite element format is becoming more and more dominant in all areas of structural mechanics. It is streamlined for computer programming, and it facilitates the use of general purpose routines that are applicable in several types of structural engineering problems. In this book the finite element formulation of the problem of dynamic response calculations follows the general principle of virtual work, a general principle which may be found in many other text books. While the buffeting wind load itself has with no trouble been included in a finite element format, the main challenge has been to obtain a consistent formulation that includes all the relevant motion induced forces. This has been important, because, while many structures (e.g. long-span suspension bridges) may suffer greatly and become unstable at high wind velocities, the same structures may also benefit from these effects at the design wind velocity. It is well known that motion induced forces will change the stiffness and damping properties of the combined structure and flow system. If calculations are performed for a suitably close set of increasing mean wind velocities and the changing mechanical properties (stiffness and damping) are updated from one velocity to the next, then the response of the system may be followed up to wind velocities close to the stability limit, i.e. up to response values that are perceived as unduly large. Finite element calculations may be performed in time domain, in frequency domain or converted into a modal format. All these options have been included. Pursuing a time domain solution strategy requires the use of the so-called indicial functions. The theory behind such a formulation is also covered, and the determination of these functions from aerodynamic derivatives has been included in a separate appendix.
Download or read book Wind Action Phenomena Associated with Large Span Bridges written by Daniel C. Vaz and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, the design of bridges over increasing distances was limited by construction techniques and, as always, by economics. As technological advances have turned possible cable-supported bridges of incredible spans, a new challenge has been added to the equation: that of withstanding the action of winds without developing undesirable dynamic responses. In this chapter, the several aerodynamic phenomena of relevance to long-span bridges are classified and discussed. This will interest both experts and non-experts in the field, thanks to the overview that is given. For certain cases, codes of practice recommend wind tunnel tests. The reader is introduced to these, as well as to numerical simulations, which are currently gaining increasing importance. Next, measures for attenuating susceptibility for undesirable dynamic responses are reviewed. The chapter ends with a discussion of the Vila Real Bridge deck section, based on wind tunnel tests and numerical simulations carried out by the authors: the aerodynamics was effectively improved with geometrically subtle modifications that were proposed and adopted still in the design phase.
Download or read book Proceedings of ARCH 2019 written by António Arêde and published by Springer Nature. This book was released on 2019-10-01 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains proceedings presented at the 9th International Conference on Arch Bridges held in Porto, Portugal on October 2 to 4, 2019. It is addressed to scientists, designers, technicians, stakeholders and contractors, seeking for an up-to-date view of the recent advances in the area of arch bridges.
Download or read book Bridge Aerodynamics written by Allan Larsen and published by Taylor & Francis. This book was released on 1998 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the May 1998 Symposium. Twenty-five contributions present state-of-the-art and future development trends in optimization, bridge aerodynamics and ship collision analysis, and operation and maintenance. Topics include probabilistic methods, aeroelastic analysis, cable dynamics, cross wind on vehicles, and numerical methods. Contains an author index but no subject index. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Cable Supported Bridges written by Niels J. Gimsing and published by John Wiley & Sons. This book was released on 2011-12-30 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fourteen years on from its last edition, Cable Supported Bridges: Concept and Design, Third Edition, has been significantly updated with new material and brand new imagery throughout. Since the appearance of the second edition, the focus on the dynamic response of cable supported bridges has increased, and this development is recognised with two new chapters, covering bridge aerodynamics and other dynamic topics such as pedestrian-induced vibrations and bridge monitoring. This book concentrates on the synthesis of cable supported bridges, suspension as well as cable stayed, covering both design and construction aspects. The emphasis is on the conceptual design phase where the main features of the bridge will be determined. Based on comparative analyses with relatively simple mathematical expressions, the different structural forms are quantified and preliminary optimization demonstrated. This provides a first estimate on dimensions of the main load carrying elements to give in an initial input for mathematical computer models used in the detailed design phase. Key features: Describes evolution and trends within the design and construction of cable supported bridges Describes the response of structures to dynamic actions that have attracted growing attention in recent years Highlights features of the different structural components and their interaction in the entire structural system Presents simple mathematical expressions to give a first estimate on dimensions of the load carrying elements to be used in an initial computer input This comprehensive coverage of the design and construction of cable supported bridges provides an invaluable, tried and tested resource for academics and engineers.
Download or read book Aeroelastic Phenomena and Pedestrian structure Dynamic Interaction on Non conventional Bridges and Footbridges written by Claudio Borri and published by Firenze University Press. This book was released on 2010 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid-structure and pedestrian-structure interaction phenomena are extremely important for non-conventional bridges. The results presented in this volume concern: simplified formulas for flutter assessment; innovative structural solutions to increase the aeroelastic stability of long-span bridges; numerical simulations of the flow around a benchmark rectangular cylinder; examples of designs of large structures assisted by wind-tunnel tests; analytical, computational and experimental investigation of the synchronisation mechanisms between pedestrians and footbridge structures. The present book is addressed to a wide audience including professionals, doctoral students and researchers, aiming to increase their know-how in the field of wind engineering, bluff-body aerodynamics and bridge dynamics.
Download or read book Passive aerodynamic control of wind induced instabilities in long span bridges written by Krzysztof Wilde and published by . This book was released on 2002 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wind Effects on Structures written by Emil Simiu and published by John Wiley & Sons. This book was released on 2019-03-11 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides structural engineers with the knowledge and practical tools needed to perform structural designs for wind that incorporate major technological, conceptual, analytical and computational advances achieved in the last two decades. With clear explanations and documentation of the concepts, methods, algorithms, and software available for accounting for wind loads in structural design, it also describes the wind engineer's contributions in sufficient detail that they can be effectively scrutinized by the structural engineer in charge of the design. Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is organized in four sections. The first covers atmospheric flows, extreme wind speeds, and bluff body aerodynamics. The second examines the design of buildings, and includes chapters on aerodynamic loads; dynamic and effective wind-induced loads; wind effects with specified MRIs; low-rise buildings; tall buildings; and more. The third part is devoted to aeroelastic effects, and covers both fundamentals and applications. The last part considers other structures and special topics such as trussed frameworks; offshore structures; and tornado effects. Offering readers the knowledge and practical tools needed to develop structural designs for wind loadings, this book: Points out significant limitations in the design of buildings based on such techniques as the high-frequency force balance Discusses powerful algorithms, tools, and software needed for the effective design for wind, and provides numerous examples of application Discusses techniques applicable to structures other than buildings, including stacks and suspended-span bridges Features several appendices on Elements of Probability and Statistics; Peaks-over-Threshold Poisson-Process Procedure for Estimating Peaks; estimates of the WTC Towers’ Response to Wind and their shortcomings; and more Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is an excellent text for structural engineers, wind engineers, and structural engineering students and faculty.
Download or read book Development of a Database of Aeroelastic and Aerodynamic Parameters for Long span Bridges written by Ye Zhou and published by . This book was released on 1995 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerodynamic Stability Analysis of Bridge written by Tan-Van Vu and published by LAP Lambert Academic Publishing. This book was released on 2015-09-02 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of modern materials and construction techniques allow construction of extremely long-span bridges as well as skyscrapers. These structures exhibit remarkable flexibility, low damping, and lightweight exhibit strong sensitivity to a variety of wind-induced vibrations. Among them, wind-induced flutter instability is the most dangerous one in which the bridge oscillates in a divergent and collapse manner at certain wind velocity. The objective of flutter analysis is to predict the lowest critical flutter wind velocity as well as the corresponding flutter frequency. The main context of the book can be point out by interrelated parts: (a) a set of simplified approximated methods in bimodal flutter framework are presented; (b) engineering formulas for the aeroelastic stability analysis of long-span bridges at the preliminary bridge design stage; (c) full-mode and multi-mode method for analyzing coupled flutter of long-span bridges at the global bridge design stage.
Download or read book Experimental Determination of Aeroelastic and Aerodynamic Parameters of Long span Bridges written by Lakshmeshwar Singh and published by . This book was released on 1997 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrodynamics Around Cylindrical Structures written by Jorgen Fredsoe and published by World Scientific. This book was released on 1997-03-17 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the subject of wave/current flow around a cylinder, the forces induced on the cylinder by the flow, and the vibration pattern of slender structures in a marine environment.The primary aim of the book is to describe the flow pattern and the resulting load which develops when waves or current meet a cylinder. Attention is paid to the special case of a circular cylinder. The development in the forces is related to the various flow patterns and is discussed in detail. Regular as well as irregular waves are considered, and special cases like wall proximities (pipelines) are also investigated.The book is intended for MSc students with some experience in basic fluid mechanics and for PhD students.
