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Concrete has been widely used for material of bridge girder. However, Concrete is considered as inefficient material for long-span girder. Because it has low material strength compared with those of steel girder, huge cross sectional area are required to have same strength of steel girder bridges. UHPC(Ultra High Performance Concrete) as new material is developed to supplement this weakness of concrete. UHPC has high compressive strength and show softness behavior due to it is reinforced by fiber. If UHPC has no any reinforcement for shear, diagonal tension crack failure is dominant like normal concrete. So, reinforcement for shear is essential and prestress is efficient method of reinforcement for UHPC due to high compressive strength. However, design equation for shear strength suggested by K-UHPC Certification(2012) do not consider prestress effect. Therefore, this study investigate effect of prestress for shear strength of ultra high performance concrete I-girder by using finite element analysis program
1. 서 론
2. 본론
2.1 배경지식
2.2 해석 개요
2.3 해석 결과
3. 결론
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