Realization of Seismic Reinforcement Work in Large-Scale Condominiums

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Other Title
  • 大規模マンションにおける耐震補強工事の実現プロセス

Abstract

A large-scale condominium complex consisting of nine buildings and approximately 700 units is located on Port Island, Chuo-ku, Kobe, and was sold immediately after the opening of Port Island as a man-made island. Although occupied since 1982, the buildings were constructed under the old earthquake-proofing standards, and although they were not severely damaged in the 1995 Great Hanshin-Awaji Earthquake, seismic reinforcement work has become necessary to prepare for future earthquake disasters. In condominiums with many compartmentalized owners, it is extremely difficult to reach a consensus on the implementation of seismic reinforcement work. However, as of 2023, construction work on a scale unprecedented in Japan has begun. In this report, we summarize the process and identify points to be considered in the future when similar projects are undertaken in condominiums.

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