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Hybrid FRP-UHPFRC composite girders: Part 2-Analytical approach

机译：混合FRP-UHPFRC复合大梁：第2部分：分析方法

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A companion paper shows the experimental testing and numerical analysis of composite girders consisting of hybrid carbon/glass fiber-reinforced polymer (HFRP) I-girders topped with precast ultra-high-performance fiber-reinforced concrete (UHPFRC) slabs. This paper presents derivations of analytical equations to examine the composite behavior of the HFRP-UHPFRC girders with varying levels of interaction at the slab/girder interface. The derived equations to predict interfacial slip strain, curvature, and deflection of the composite girders were validated by the experimental data. An equation to determine the effective moment of inertia of the HFRP-UHPFRC composite girders with partial interaction is proposed and compared against the experiment. A fairly good agreement between the experimental and analytical results was found. The derived/proposed equations can simply and reliably evaluate the composite behavior between the HFRP I-girder and the UHPFRC slab. (C) 2014 Elsevier Ltd. All rights reserved.
机译：随附的论文显示了复合梁的实验测试和数值分析，该复合梁由混合碳/玻璃纤维增​​强的聚合物（HFRP）工字梁和预制的超高性能纤维增强混凝土（UHPFRC）板组成。本文介绍了分析方程的推导，以检查在板/梁界面处相互作用程度不同的HFRP-UHPFRC梁的复合性能。通过实验数据验证了推导的方程来预测复合梁的界面滑移应变，曲率和挠度。提出了确定部分相互作用的HFRP-UHPFRC组合梁有效惯性矩的公式，并与实验进行了比较。实验和分析结果之间找到了相当好的一致性。导出/提议的方程可以简单而可靠地评估HFRP工字梁与UHPFRC平板之间的复合性能。 （C）2014 Elsevier Ltd.保留所有权利。

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