SOIL-STRUCTURE INTERACTION ANALYSIS OF THE HUALIEN CONTAINMENT MODEL

This paper presents results from forced vibration tests, microtremor o bservations and earthquake response analysis of a nuclear reactor cont ainment model constructed on stiff soil in Hualien, Taiwan. The dynami c behavior of the soil-structure system is simulated successfully with two numerical models: a sway-rocking model, whose soil parameters are evaluated on the basis of the continuum formulation method, and a fin ite element model, using the program SASSI with the flexible volume su bstructuring approach. The dependences of the soil parameters of both models on the amplitudes of the different dynamic excitations are inve stigated in detail. An original numerical simulation of microtremor is performed. Comparison with results of a previous study involving a ri gid tower on a soft soil site in Chiba, Japan is offered. (C) 1997 Els evier Science Limited.