A Fundamental Study to Develop the Two Span Continuous Bridge using the Partial Post-Tensioning Technique

부분포스트텐션닝 방법을 이요한 2경간 연속 교량구조의 개발을 위한 기초연구

The current study is a part of series o 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 is the continuation of adjacent tow simple spans composed of the precast prestressed concrete U-type sections. The partial post tensioning method is applied to create the continuity. In this study, the new technique was introduced and applied with an example design of tow span of 40m in span length to find the possibility for practical application as the feasibility study. The obtained results show that the new splicing method is expected to offer significant economical and serviceability advantages.