서울시청사 본관동 전이구조 공법개발

Many construction foundation methods have been reviewed for their application to the remodeling of the city hall of Seoul in which the existing historical walls should be preserved. However, it has been found that most existing methods are not applicable due to the problem of unique site conditions (the limited space between the preserved walls and the newly constructed structure). Through the technical evaluation, experiment and computer simulation, we developed a new method `Balanced Transfer Frame`to allocate the vertical load of the new structure to the internal micro-files within the existing foundation. The method has successfully resolved the problems associated with the preservation of the historical walls and the limited space.