RESPONSE EVALUATION OF HIGH-RISE LATTICE DOMES WITH SUPPORTING SUBSTRUCTURES

Abstract

Seismic response of raised domes with substructures are known to be very complicate, because of the roof having large numbers of parallel vibration modes, and their amplitude changing drastically along the relationship between domes and substructures. The authors have proposed simple method for estimating the response of such domes with amplification factors, however, they do not cover high-rise domes. In this paper, simple response evaluation method of lattice domes with high-rise proportions supported by various stiffness of substructures is proposed using continuous approach as the previous studies, and their validities are discussed against response spectrum analyses with CQC method.