Seismic Retrofit of Existing RC Walls for Ductility Enhancement

기존 철근콘크리트 벽체의 연성확보를 위한 내진보강 방안

A Seismic retrofit idea based on a first principle is proposed for existing RC walls under various level of axial loading. In application of the proposed retrofit method, designers can choose the size and shape of boundary elements of wall sections for a required level of ductility. For this axial load ratio, steel ratio, and strength of concrete and steel are considered as design parameters. In order to show the usage of the idea, several design charts are presented with an application example.