Analysis of wind response behavior of two conjoined seismic isolated high-rise buildings based on observation records

Abstract

Recently, seismic isolation structures are becoming widely adopted for high-rise buildings but there are only few studies on the wind response of such buildings. The authors aim to address this matter by studying the actual behavior of two conjoined seismically isolated high-rise buildings(J2-3) based on wind response observation records. This complex-shaped conjoined buildings were constructed in two phases: (1) the flat-shaped J2 building was completed earlier, and (2) later followed by the construction of the conjoining J3 building. The wind response record for the J2 building alone in phase (1) has been reported in the past. However, actual wind response of the completed J2-3 building is not yet well investigated. this study aims to grasp the influences of conjoining buildings and the change of the building shape on wind response behavior. In this paper, as the preliminary stage, the authors report the detailed response analysis of the conjoined buildings during typhoon.