Structural Dynamics: Recent Advances

ISBN-13: 9783642883002 / Angielski / Miękka / 2012 / 475 str.

G. I. Schueller

Opis

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.

Spis treści

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.