Strength of footing with punching shear preventers.
Strength of footing with punching shear preventers.
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DOI：
10.1155/2014/474728
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发表时间：
2014
影响因子：
--
通讯作者：
Bae KW
中科院分区：
文献类型：
--
作者：
Lee SS;Moon J;Park KS;Bae KW
冲剪破坏通常决定着基础与柱连接的强度。冲剪破坏是一种不希望的破坏模式，因为它会导致基础的脆性破坏。在这项研究中，提出了一种通过将冲切防护装置（PSP）插入基础来提高基础强度和延展性的新方法。通过一系列的实验研究验证了PSP的有效性和有效性。然后进行非线性有限元分析，深入论证PSP基础的失效机制，并研究影响PSP基础行为的关键参数。最后，提出了 PSP 基础的设计建议。
The punching shear failure often governs the strength of the footing-to-column connection. The punching shear failure is an undesirable failure mode, since it results in a brittle failure of the footing. In this study, a new method to increase the strength and ductility of the footing was proposed by inserting the punching shear preventers (PSPs) into the footing. The validation and effectiveness of PSP were verified through a series of experimental studies. The nonlinear finite element analysis was then performed to demonstrate the failure mechanism of the footing with PSPs in depth and to investigate the key parameters that affect the behavior of the footing with PSPs. Finally, the design recommendations for the footing with PSPs were suggested.