Author(s)

G. Niederwanger

Abstract

Vibrations on buildings caused by earthquakes by traffic or by special construction methods as surface compaction or driving in sheet piles with a vibratory hammer or by blasting can lead to damage if the strength of the structure oversteps empirical developed limits. A numerical determination of the problem is often not possible because in many cases the dynamic behaviour of the structure and the surrounding soil is unknown. It is therefore necessary to carry out measurements to get real information whereby the measured velocity of vibration in most standards is a measure for vibrations of the building. Introduction It was found that two types of waves were possible in an elastic infinite medium - waves of dilatation and waves of distortion (space waves). In an elast

Keywords