DYNAMIC AND STATIC DISPLACEMENT PROPERTY OF RIGID FOUNDATION ON WEATHERED ROCK BY FIELD TEST

This paper describes displacement properties of rigid foundations on weathered rock by dynamic and static field tests, and comparisons the properties with theoritical and numercal computed solutions. The contents are properties of bearing rock, relation between measured natural frequencies and computed eigenvalues, variability of resonance frequencies and complex rigidities in forced vibration tests, simulations of the forced vibration test by FEM, static response properties by repeated tests under large loading, and relation between dynamic and static properties. We think that obtained results are very useful for developments of seismic design methods.