Experimental Study on the Impact Resistance Performance of Civil Air Defense RC Walls Protected by Honeycomb Sandwich Panels

被引:0
|
作者
Yang, Ran [1 ,2 ]
Qu, Dayi [1 ]
Zhang, Jigang [2 ]
机构
[1] Qingdao Univ Technol, Sch Mech & Automot Engn, Qingdao 266520, Peoples R China
[2] Qingdao Univ Technol, Sch Civil Engn, Qingdao 266520, Peoples R China
关键词
civil air defense wall; honeycomb sandwich structure; impact; energy absorption the pendulum experiment; HIGH-STRENGTH; COLUMNS; BEHAVIOR; SLABS;
D O I
10.3390/buildings14082293
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Reinforced concrete (RC) walls are extensively used in civil air defense engineering and are susceptible to low-speed impacts with high energy and massive weight during service. Therefore, it is crucial to consider the impact resistance of these walls and explore effective protection methods. The honeycomb structure, known for its energy-absorbing properties, has been widely utilized in aerospace, automotive, and maritime industries. However, there is a need for more research on applying honeycomb structures in energy-absorbing protection devices in civil engineering. This study proposes the use of honeycomb sandwich panels to protect civil air defense RC walls, creating a Honeycomb Sandwich Panel Composite RC wall (HSP-RC wall). Through pendulum impact experiments, we investigated the dynamic response of RC walls, both standard and HSP-RC walls with varying honeycomb parameters, under high-energy impacts. The goal was to evaluate the impact resistance of these RC walls, analyze the deformation differences among different HSP-RC walls, and examine the influence of honeycomb parameters on the impact protection effectiveness. The research results indicate that honeycomb sandwich panels can provide impact protection for RC walls by absorbing energy, and their protection effect is related to the parameters of the honeycomb core layer. This research result can be applied to RC structures that bear impact loads, achieving effective protection for RC structures.
引用
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页数:19
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