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논문 기본 정보

자료유형
학술저널
저자정보
Sung-Jae Kim (Yonsei University) Jang-Ho Jay Kim (Yonsei University) Seong-Tae Yi (Inha Technical College) Norhazilan Bin Md Noor (Universiti Teknologi Malaysia) Sung-Chul Kim (Yonsei University)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.10 No.3 Supplement
발행연도
2016.9
수록면
1 - 17 (17page)

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초록· 키워드

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Recently, advanced transit systems are being constructed to reduce traffic congestions in metropolitan areas. For these projects, curved bridges with various curvatures are required. Many curved bridges in the past were constructed using aesthetically unpleasant straight beams with curved slabs or expensive curved steel box girders with curved slabs. Therefore, many recent studies have been performed to develop less expensive and very safe precast prestressed concrete (PSC) curved girder. One method of reducing the construction cost of a PSC curved girder is to use a reusable formwork that can easily be adjusted to change the curvature and length of a girder. A reusable and curvature/dimension adjustable formwork called Multi-tasking formwork is developed for constructing efficient precast PSC curved girders. With the Multi-tasking formwork, two 40 m precast PSC box girders with different curvatures were constructed to build a two-girder curved bridge for a static flexural test to evaluate its safety and serviceability performance. The static flexural test results showed that the initial cracking load was 1400 kN, exceeding the design cracking load of 450 kN. Also, the code allowed deflection of 50 mm occurred at a load of 1800 kN, verifying the safety and serviceability of the precast PSC curved bridge constructed using the multi-tasking formwork.

목차

Abstract
1. Introduction
2. Multi-Tasking Formwork
3. Nonlinear 3D Simulation to Evaluate the Structural Performance
4. Full-Scale Static Experiment
5. Experimental Results and Discussions
6. Comparison of Simulation and Test Results
References

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UCI(KEPA) : I410-ECN-0101-2017-532-001401049