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As part of a research intending to develop steel-concrete hybrid girder using ultra high performance concrete with compressive strength of 80 MPa, this study conducts loading test on this girder to investigate the methods for its composition with a slab using 30 MPa-concrete and the corresponding interfacial behavior. Prior to the loading test, the design formula of the Eurocode for the shear resistance developed in concrete-to-concrete interface is examined for the interface between concrete layers of different strengths. The effect of the surface roughness on the shear resistance is examined using this formula and finite element analysis to verify the applicability of the formula. Based upon the results, loading test is conducted on girder specimens to evaluate the actual behavior with respect to the interfacial surface condition. The test results reveal that the specimen with rough interface could not develop perfectly composite behavior and experienced adhesive failure. In case of simultaneous action of flexure and shear, it appears that conservative design should be applied without consideration of the interfacial condition when determining the arrangement of shear reinforcement.
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篇名 Connection between Concrete Layers with Different Strengths
来源期刊 工程(英文)(1947-3931) 学科 医学
关键词 Shear Resistance Interface BETWEEN CONCRETE LAYERS Surface ROUGHNESS STEEL-CONCRETE Hybrid GIRDER Ultra High Performance CONCRETE (UHPC)
年,卷(期) gc-eng_2015,(7) 所属期刊栏目
研究方向 页码范围 365-372
页数 8页 分类号 R73
字数 语种
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节点文献
Shear
Resistance
Interface
BETWEEN
CONCRETE
LAYERS
Surface
ROUGHNESS
STEEL-CONCRETE
Hybrid
GIRDER
Ultra
High
Performance
CONCRETE
(UHPC)
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
工程(英文)(1947-3931)
月刊
1947-3931
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
367
总下载数(次)
1
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