Structural Dynamics : Recent Advances

This book contains some new developments in the area of Structural Dynamics. In general it reflects the recent efforts of several Austrian research groups during the years 1985 - 1990. The contents of this book cover both theoretical developments as well as practical applications and hence can be utilized by researchers as well as the practicing engineers. Quite naturally, realistic modeling of a number of load types such as wind and earthquake loading, etc. , requires taking into account statistical uncertainties. Hence these loads have to be characterized by stochastic processes. As a consequence, stochastic aspects must play a major role in modem structural dynamics. Since an extended modeling of the load processes should not be counterbalanced by simplifying the structural models, considerable efforts have been put into the development of procedures which allow the utilization of e. g. FE models and codes which are utilized presently in context with simplified, i. e. "deterministic" load models. Thus the processing of the additional information on loads as well as including statistical properties of the material allows to provide additional answers, i. e. quantification of the risk of structural failure. This volume concentrates on four major areas, i. e. on load modeling, structural response analysis, computational reliability procedures, and finally on practical application. Quite naturally only special fields and particular, i. e. selected types of problems can be covered. Specific reference is made, however, to cases where generalizations are possible. Front Matter....Pages I-XI Introduction....Pages 1-9 Test of Stationarity and the Estimation of Modulating Functions....Pages 11-27 Earthquake Loading....Pages 28-51 Seismic Waves in Layered Soil: The Generalized Ray Theory....Pages 52-90 Wind Loads....Pages 91-101 Non-Gaussian Response of Linear Systems....Pages 103-127 Systems with Parametric Excitation — Bridge Structures....Pages 128-145 Nonlinear Systems....Pages 146-213 Dynamics of Plate Structures....Pages 214-234 Material Science- and Numerical Aspects in the Dynamics of Damaging Structures....Pages 235-255 Sure and Random Nonlinear Analysis in the Frequency Domain: Numerical and Experimental Investigations....Pages 256-283 Exceedance Rate Including System Uncertainties....Pages 285-300 Computational Stochastic Structural Analysis (COSSAN)....Pages 301-315 Earthquake Resistant Design of Anchored and Unanchored Liquid Storage Tanks Under Three-Dimensional Earthquake Excitation....Pages 317-371 Earthquake Resistance of Deep-Pile Foundations for Liquid Storage Tanks....Pages 372-384 Dynamic Analysis of Blast Procedure in Tunneling....Pages 385-437 Design of Industrial R/C Chimneys....Pages 438-466 Analysis of Containment Structures of NPP’s....Pages 467-475 This book contains some new developments in the area of Structural Dynamics. Its contents cover both theo- retical aspects as well as practical applications and hence can be utilized by students, researchers, as well as practising engineers. The volume concentrates on four major areas, i.e. on load modeling with particular emphasis on earthquake and windloading, structural response analysis, computational reliability procedures, and finally on practical application. This includes e.g. the dynamic analysis of liquid storage tanks under earthquake excitation, the dynamic analysis of the blast procedure for tunneling, the design and analysis of tall slender industrial chimneys under wind loading as well as the analysis of containment structures of nuclear power plants under earthquake conditions. It is shown, that the theoretical procedures as described in the previous chapters may be readily applied to practical problems.