复合数
材料科学
结构工程
开裂
抗弯强度
刚度
张力(地质)
纤维混凝土
钢筋混凝土
复合材料
钢筋
极限抗拉强度
工程类
出处
期刊:Aci Structural Journal
[American Concrete Institute]
日期:2007-01-01
卷期号:104 (1)
被引量:34
摘要
Composite ultra-high-performance fiber-reinforced concrete (UHPFRC) and conventional reinforced concrete structural members are investigated to assess the rehabilitation potential for existing concrete structures. The composite structural response is determined by testing 12 full-sized flexural beams, loading the UHPFRC layer in tension. The results demonstrate that the exceptional material properties of UHPFRC significantly improve the composite member structural response, including the ultimate force, stiffness, and cracking behavior. An analytical model is developed to predict the composite UHPFRC and conventional reinforced concrete structural response, and is employed to further analyze the experimental test results.
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