가설교량 시공시 열차하중에 따른 구조물 접속부 거동특성 분석

초록

As the construction method of underground crossing, employment of multi-level crossing method which satisfies high requirements of safety and usage performance is currently growing despite of cost, somewhat more than simple level crossing, when a new railway crosses over an existing railroad or vice versa. However, the temporary bridge based on an existing cut-and-cover method, building structure under track and passing through during operation, demands an inexpensive construction cost of installing the structure, but has a disadvantage that the train should reduce speed noticeably since the dynamic behavioral characteristics of temporary structure for relaxing the ground and installing the structure are weak due to the cut-and-cover. In this study, we analyzed the dynamic behavior of temporary bridge construction method according to train loads through field measurement the safety of the method using numerical analysis.