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.
Sprache
Verlagsort
Verlagsgruppe
Zielgruppe
Für höhere Schule und Studium
Für Beruf und Forschung
Illustrationen
30
30 s/w Tabellen
287 figures, 30 tables
Maße
Höhe: 23.5 cm
Breite: 15.5 cm
Gewicht
ISBN-13
978-3-540-53593-5 (9783540535935)
DOI
10.1007/978-3-642-88298-2
Schweitzer Klassifikation
1 Introduction.- 2 Load Models.- 2.1 Test of Stationarity and the Estimation of Modulating Functions.- 2.1.1 Introduction.- 2.1.2 Test of Stationarity.- 2.1.3 Estimation of the Modulation Function.- 2.1.4 References.- 2.2 Earthquake Loading.- 2.2.1 Introduction.- 2.2.2 Earthquake Models Based on Simulation.- 2.2.3 Estimation of the Evolutionary Process from Strongly Nonstationary Earthquake Records.- 2.2.4 Artificial Acceleration Time Histories Based on a Nonstationary Stochastic Source-Model.- 2.2.5 References.- 2.3 Seismic Waves in Layered Soil: The Generalized Ray Theory.- 2.3.1 Introduction.- 2.3.2.1 Horizontal Layers.- 2.3.2.2 Dipping Layer.- 2.3.3.1 Reinforced Soil.- 2.3.3.2 Viscoelastic Soil.- 2.3.4 Random Seismic Sources.- 2.3.5 Conclusions.- 2.3.6 References.- 2.4 Wind Loads.- 2.4.1 Structures of Wind Turbulence.- 2.4.2 Aerodynamic Admittance.- 2.4.3 References.- 3 Structural Response Analysis.- 3.1 Non Gaussian Response of Linear Systems.- 3.1.1 Introduction.- 3.1.2 Mathematical Description of Non-Normal Random Variables.- 3.1.3 Statistical Description of Non-Gaussian Processes.- 3.1.4 Response of Linear Systems.- 3.1.5 Concluding Remarks.- 3.1.6 References.- 3.1.I Appendix.- 3.2 Systems with Parametric Excitation - Bridge Structures.- 3.2.1 Introduction.- 3.2.2 Equations of Motion.- 3.2.3 Stability Analysis.- 3.2.4 Numerical Examples.- 3.2.5 Concluding Remarks.- 3.2.6 References.- 3.3 Nonlinear Systems.- 3.3.1 Analytical Solutions.- 3.3.2 The Method of Statistical Equivalent Linearization.- 3.3.3 References.- 3.3.I Appendix.- 3.3.II Appendix.- 3.4 Dynamics of Plate Structures.- 3.4.1 Introduction.- 3.4.2 BEM with Influence Functions of Rectangular Plates.- 3.4.3 Special Topics: Moderately Thick and Laminated Plates Nonlinear Geometrical Effects.- 3.4.4 Numerical Results.- 3.4.5 Conclusions.- 3.4.6 References.- 3.5 Material Science- and Numerical Aspects in the Dynamics of Damaging Structures.- 3.5.1 Introduction.- 3.5.2 Thermodynamic Formulation.- 3.5.3 Evolution Equations for Internal Variables.- 3.5.4 Distributed Distorsions in Finite Continua.- 3.5.5 Modal Expansion of Dynamic Solutions.- 3.5.6 Formulation of the Discretized Problem.- 3.5.7 Computational Aspects.- 3.5.8 Example.- 3.5.9 Conclusions.- 3.5.10 References.- 3.6 Sure and Random Nonlinear Analysis in the Frequency Domain: Numerical and Experimental Investigations.- 3.6.1 Introduction.- 3.6.2 Experimental Investigation of Earthquake Excited Elasto-Plastic Multistorey Frames.- 3.6.3 Sure Vibrations of Elasto-Plastic Structures Considering Structural Drift and Modal Projection.- 3.6.4 Random Vibrations of Elasto-Plastic Structures due to Earthquake Excitation.- 3.6.5 Concluding Remarks.- 3.6.6 References.- 4 Computational Reliability Procedures.- 4.1 Exceedance Rate Including System Uncertainties.- 4.1.1 Introduction.- 4.1.2 Exceedance Rate - Approximation.- 4.1.3 Uncertainties of the Soil Parameters.- 4.1.4 Uncertainties of the System Parameters.- 4.1.5 Numerical Examples.- 4.1.6 References.- 4.1.I Appendix.- 4.2 Computational Stochastic Structural Analysis (COSSAN).- 4.2.1 Software Requirements.- 4.2.2 Theoretical Concept.- 4.2.3 Applications.- 4.2.4 Concluding Remarks.- 4.2.5 References.- 4.2.I Appendix.- 5 Practical Applications.- 5.1 Earthquake Resistant Design of Anchored and Unanchored Liquid Storage Tanks Under Three-Dimensional Earthquake Excitation.- 5.1.1 Introduction.- 5.1.2 Anchored Tanks.- 5.1.3 Unanchored Tanks.- 5.1.4 Dynamic Instabilités of Earthquake Excited Liquid Storage Tanks.- 5.1.5 A Proposal for the Earthquake Resistant Design of Anchored and Unanchored Liquid Storage Tanks.- 5.1.6 Conluding Remarks.- 5.1.7 References.- 5.2 Earthquake Resistance of Deep-Pile Foundations for Liquid Storage Tanks.- 5.2.1 Introduction.- 5.2.2 Seismic SH-Waves in the Free-Field.- 5.2.3 Reinforced Layered Soil - Timoshenko Beam.- 5.2.4 The Tank Model.- 5.2.5 Results and Conclusions.- 5.2.6 References.- 5.3 Dynamic Analysis of Blast Procedure in Tunneling.- 5.3.1 Introduction.- 5.3.2 Numerical Modelling.- 5.3.3 Blasting.- 5.3.4 References.- 5.4 Design of Industrial R/C Chimneys.- 5.4.1 Gust Response.- 5.4.2 Ultimate Load Failure.- 5.4.3 Fatigue Failure.- 5.4.4 References.- 5.4.I Appendix.- 5.4.II Appendix.- 5.4.III Appendix.- 5.5 Analysis of Containment Structures of NPP's.- 5.5.1 Introduction.- 5.5.2 Structural Model and Stochastic Earthquake Loading.- 5.5.3 Stochastic Response.- 5.5.4 Evaluation of die Exceedance Probability.- 5.5.5 Consideration of Uncertainties in Structural and Material Parameters.- 5.5.6 Practical Application.- 5.5.7 References.
