Odlomak

Preface
Modern structures such as buildings, factories, gymnasia, concert halls, bridges, towers,
masts and chimneys can be severely affected by vibrations. Vibrations can cause either
serviceability problems reducing people’s comfort to an unacceptable level or safety problems
with danger of failure.
The aim of this book is to give guidelines for the practical treatment of vibration problems in
structures. The guidelines are mainly aimed at practising structural and civil engineers who
are working in construction and environmental engineering but are not specialists in dynamics.
In four chapters with totally twenty sub-chapters, tools are given to aid in decisionmaking and
to find simple solutions for cases of frequently occuring “normal” vibration problems. For
more complicated problems and for more advanced solutions further hints are given. In such
cases these guidelines should enable the user to proceed in the right direction for finding the
appropriate solutions – for example, in the literature – and possibly assist him to communicate
authoritatively with a dynamic specialist.
Dynamic actions are considered from the following sources of vibration:
– human body motions
– rotating, oscillating and impacting machines
– wind flow
– road traffic, railway traffic and construction work.

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