Techniques for Seismic Isolation Retrofit Work while a Building is Being Used

Recently, construction by which the building is made strong without stopping the function of it increases. Attention has especially gathered to seismic isolation retrofit work in that. It has the advantage that can be constructed differing from other methods, and changing neither the design nor the function of the building. For constructing while using the building, a very important task is to eliminate or reduce noise and vibration generated during work, and to secure strict safety for building users and site workers.