Experimental study of damage modes of RC and RCS walls under combined loading of fragments and shock waves

IF 5.1 2区 工程技术 Q1 ENGINEERING, MECHANICAL
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引用次数: 0

Abstract

A pressing issue for reinforced concrete walls, which are commonly used as building structures, is how the fragments and shock waves generated by the explosion of a cased charge affect the concrete structure. In this paper, the damage modes of reinforced concrete walls (RC walls) and reinforced concrete-steel composite walls (RCS walls) under the combined loading of fragments and shock waves are investigated by experimental methods, and the effects of wall thickness, strength, stand-off distance, and thickness of the steel plate on the back on the damage modes of the walls are discussed. Based on the experimental data, the damage modes of the walls were classified into three classes. In comparison, the installation of steel plates on the back of concrete walls was found to be a significant means of protection, effectively preventing the penetration of metal fragments and the splashing of concrete fragments.

碎片和冲击波联合加载下 RC 和 RCS 墙体破坏模式的实验研究
钢筋混凝土墙是常用的建筑结构,其迫切的问题是套管炸药爆炸产生的碎片和冲击波如何影响混凝土结构。本文通过实验方法研究了钢筋混凝土墙(RC 墙)和钢筋混凝土-钢复合墙(RCS 墙)在破片和冲击波联合加载下的破坏模式,并讨论了墙厚、强度、间距和背面钢板厚度对墙体破坏模式的影响。根据实验数据,将墙体的破坏模式分为三类。比较发现,在混凝土墙背面安装钢板是一种重要的保护手段,可有效防止金属碎片的穿透和混凝土碎片的飞溅。
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来源期刊
International Journal of Impact Engineering
International Journal of Impact Engineering 工程技术-工程:机械
CiteScore
8.70
自引率
13.70%
发文量
241
审稿时长
52 days
期刊介绍: The International Journal of Impact Engineering, established in 1983 publishes original research findings related to the response of structures, components and materials subjected to impact, blast and high-rate loading. Areas relevant to the journal encompass the following general topics and those associated with them: -Behaviour and failure of structures and materials under impact and blast loading -Systems for protection and absorption of impact and blast loading -Terminal ballistics -Dynamic behaviour and failure of materials including plasticity and fracture -Stress waves -Structural crashworthiness -High-rate mechanical and forming processes -Impact, blast and high-rate loading/measurement techniques and their applications
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