TY - BOOK ID - 8211701 TI - Theory of Bridge Aerodynamics PY - 2010 SN - 3642448135 3642136591 9786612927034 1282927035 3642136605 PB - Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, DB - UniCat KW - Aerodynamics. KW - Bridges -- Aerodynamics. KW - Bridges. KW - Bridges KW - Civil & Environmental Engineering KW - Engineering & Applied Sciences KW - Transportation Engineering KW - Civil Engineering KW - Aerodynamics KW - Design and construction. KW - Bridge construction KW - Construction KW - Design KW - Engineering. KW - Applied mathematics. KW - Engineering mathematics. KW - Mechanics. KW - Mechanics, Applied. KW - Continuum mechanics. KW - Structural mechanics. KW - Civil engineering. KW - Structural Mechanics. KW - Continuum Mechanics and Mechanics of Materials. KW - Civil Engineering. KW - Engineering, general. KW - Appl.Mathematics/Computational Methods of Engineering. KW - Theoretical and Applied Mechanics. KW - Mechanics, applied. KW - Solid Mechanics. KW - Mathematical and Computational Engineering. KW - Applied mechanics KW - Engineering, Mechanical KW - Engineering mathematics KW - Engineering KW - Engineering analysis KW - Mathematical analysis KW - Industrial arts KW - Technology KW - Public works KW - Classical mechanics KW - Newtonian mechanics KW - Physics KW - Dynamics KW - Quantum theory KW - Mathematics UR - https://www.unicat.be/uniCat?func=search&query=sysid:8211701 AB - 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. ER -