Local Seismic Response of Castelnuovo hill (AQ-Italy) with 2D models

The paper reports the results of a comparison between numerical simulations of local seismic response in Castelnuovo (AQ) referring to three points of a two-dimensional model. The 2-D model develops along the cross section of the hill and is orthogonal to the main fault of San Pio delle Camere. The model takes into account in detail the heterogeneity of the subsoil and the irregular trend of the seismic bedrock, based on the results of an extensive campaign of geophysical and geotechnical surveys. The nonlinear analysis of the local seismic response is carried out following the modeling of the initial tension of the hill and of the elastic analysis accompanied by a calibration of the model, which is based, in addition to measurements of ambient vibrations, also on the recording of the temporary seismic stations. The results of the numerical analyzes are illustrated in terms of amplification functions and ground motion parameters (peak acceleration, velocity and displacement), and in terms of power and response spectra calculated at various points in the Castelnuovo relief, in order to facilitate reconstruction plan by providing a useful tool for seismic design of civil structures.