U형 프리캐스트 프리스트레스트 콘크리트 거더를 이용한 2경간 연속 교량구조의 개발을 위한 기초연구

Abstract

The current syudy is a part of esries of research about the development of new superstructure system to overcome the engineering problems in the design of bridges of 30m to 45m in span length using the existing bridge systems. The basic concept of new system in the continuation of adjacent two simple spans composed of the precast prestressed concrete U-type sections. The partial post tensioning method is applied to create the contimuity. In this stdy, the new technique was introduced and applied with an example design of two span of 40m in span lemgth to find the possibility for pratival applicatio as a feasibility syudy. The obtained results show that the new splicing method is expected to offer significant economical and serviceability advantages.