蜂窝夹芯板保护的民用防空 RC 墙抗冲击性能实验研究

IF 3.1 3区 工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY
Ran Yang, Dayi Qu, Jigang Zhang
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引用次数: 0

摘要

钢筋混凝土(RC)墙体广泛应用于民用防空工程,在使用过程中容易受到高能量、大重量的低速冲击。因此,考虑这些墙体的抗冲击性并探索有效的保护方法至关重要。蜂窝结构以其能量吸收特性著称,已被广泛应用于航空航天、汽车和航海业。然而,在土木工程吸能保护装置中应用蜂窝结构还需要更多的研究。本研究提出使用蜂窝夹芯板来保护民用防空 RC 墙,即蜂窝夹芯板复合 RC 墙(HSP-RC 墙)。通过摆锤撞击实验,我们研究了高能撞击下 RC 墙(包括标准墙和不同蜂窝参数的 HSP-RC 墙)的动态响应。目的是评估这些 RC 墙体的抗冲击性能,分析不同 HSP-RC 墙体之间的变形差异,并研究蜂窝参数对冲击防护效果的影响。研究结果表明,蜂窝夹芯板可通过吸收能量为 RC 墙体提供冲击保护,其保护效果与蜂窝芯层的参数有关。该研究成果可应用于承受冲击荷载的 RC 结构,实现对 RC 结构的有效保护。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Study on the Impact Resistance Performance of Civil Air Defense RC Walls Protected by Honeycomb Sandwich Panels
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.
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来源期刊
Buildings
Buildings Multiple-
CiteScore
3.40
自引率
26.30%
发文量
1883
审稿时长
11 weeks
期刊介绍: BUILDINGS content is primarily staff-written and submitted information is evaluated by the editors for its value to the audience. Such information may be used in articles with appropriate attribution to the source. The editorial staff considers information on the following topics: -Issues directed at building owners and facility managers in North America -Issues relevant to existing buildings, including retrofits, maintenance and modernization -Solution-based content, such as tips and tricks -New construction but only with an eye to issues involving maintenance and operation We generally do not review the following topics because these are not relevant to our readers: -Information on the residential market with the exception of multifamily buildings -International news unrelated to the North American market -Real estate market updates or construction updates
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