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首页> 外文期刊>Composite Structures >A new formula of punching shear strength for fiber reinforced polymer (FRP) or steel reinforced two-way concrete slabs
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A new formula of punching shear strength for fiber reinforced polymer (FRP) or steel reinforced two-way concrete slabs

机译：用于纤维增强聚合物（FRP）或钢的冲压剪切强度的新配方，加固双向混凝土板

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摘要

This study is to propose a new punching shear strength formula for either FRP or steel reinforced two-way concrete slabs based on deterministic and probabilistic methods. Former is to employ the test to prediction ratio and latter is newly suggested approach that can guarantee more reliable prediction considering the significant uncertainties to minimize the possibility of over-estimating punching shear strength. For comparative study, the selected test results and the previous formulas are employed. The proposed new formula exhibits the most accurate test to prediction ratio among the existing formulas. Furthermore, it renders the lowest probability of exceedance that the predicted punching shear strength exceeds the nominal punching shear strength. The proposed new formula can minimize the probability of over-estimating the punching shear strength. Consequently, it can lead to enhance the accuracy, safety and reliability of punching shear strength design of either FRP or steel reinforced two-way concrete slabs.
机译：本研究采用基于确定性和概率方法，为FRP或钢的增强双向混凝土板的新冲压剪切强度配方提出了一种新的冲压剪切强度配方。前者是采用测试到预测率，后者是新建议的方法，可以保证考虑到最小化过度估计冲压剪切强度的可能性的显着不确定性的更可靠的预测。对于比较研究，采用所选测试结果和先前的公式。所提出的新配方对现有公式中的预测比率最准确地测试。此外，它使预测的冲压剪切强度超过标称冲压剪切强度的最低概率。所提出的新公式可以最大限度地减少过度估计冲压剪切强度的可能性。因此，它可以提高FRP或钢筋双向混凝土板的冲压剪切强度设计的精确度，安全性和可靠性。

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