FREQUENCY RESPONSEANALYSIS METHOD FOR UNDERGROUND STRUCTURE ACTING SINUSOIDALPLANE WAVE TRAVELING ALONG STRATIFICATION GROUND

Abstract

 This report presents simple dynamic analysis method for underground structure. Sinusoidal plane wave generated by oblique incidence travels along ground surface. This plane wave deforms underground structure which is installed horizontally in surface layer. Underground structure is modeled as beam which has some boundaries and supported by elastic spring. Beam analysis acting ground deformation can be formulated easily, and some frequency response functions are useful for evaluation of existing non-conforming structures. And frequency response function leads to time history of structural response.