A Study for the Performance Based Strengthening Design of Underground Box Structure in Urban Railway

도시철도 지하박스 구조물의 내진성능 보강설계 연구

In this study, seismic structural reinforcement are carried out, based on the estimated seismic performance of underground box structures in urban railway, and displacement based design method was developed to enhance seismic performance of structures. New seismic reinforcement design method is proposed and compared with existing design methods. And presented an overview of the developed design methodology through a design example to verify the validity of that methods.