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Punching shear and flexural strengths of ultra high performance concrete slabs

机译:超高性能混凝土板的冲压剪切和弯曲强度

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Ultra High Performance Concrete (UHPC), compared to conventional concrete, shows highly improved structural behavior, which makes it possible to design slender, light and durable structures. However, further development of practical design formulas is required to apply UHPC to a structural design. This paper reports the result of two independent punching shear tests of UHPC slabs to estimate the punching strength of UHPC slabs. To recommend the reliable punching shear formula for the design of UHPC slabs, the test results are compared to available punching shear formulas for conventional concrete and UHPC. Also, a detailed comparison between the two tests is made to understand the important factors affecting the structural behavior of UHPC slabs. Based on the results, design considerations for UHPC slabs are recommended.
机译:与传统混凝土相比,超高性能混凝土(UHPC)显示出高度改善的结构行为,这使得可以设计细长,光和耐用的结构。然而,需要进一步发展实际设计公式,以将UHPC应用于结构设计。本文报告了UHPC板的两个独立冲压剪切测试的结果,以估计UHPC板坯的冲压强度。要推荐UHPC板设计的可靠冲压剪切公式,将测试结果与传统混凝土和UHPC的可用冲压剪切公式进行比较。此外,对两个测试之间的详细比较是为了了解影响UHPC板坯结构行为的重要因素。根据结果​​,建议使用UHPC板的设计考虑因素。

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