Structural dynamics in practice - Arthur Bolton

The purpose of this book is to show how basic structural theory and design methods in everyday use for static design, can be applied equally well to dynamic load cases with little modification. The first three chapters explain the basic principles of structural vibration and show that this can have a large influence on structures. Following on from this, methods for calculation of natural frequencies of continuous beams, bridges, industrial shed frames and tall buildings are demonstrated.;Having calculated natural frequencies for simple structures using moment distribution or slope deflection and tables of dynamic stiffness, they are extended to large structures using powerful type solutions. As axial forces now have a large effect on natural frequencies, elastic critical loads are also calculated, using the same methods. The final chapter shows how these methods can be used to design suitable structures for dynamic loads and demonstrates that this is fully compatible with design for static forces and that both kinds of loading can be dealt with in a single procedure.;Above all, this book should help designers find the simplest and cheapest way of either avoiding resonance entirely or, at least, reducing its effect.