Study on Impact Response of Reactive Powder Concrete Beam and Its Analytical Model
Study on Impact Response of Reactive Powder Concrete Beam and Its Analytical Model
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DOI：
10.3151/jact.4.99
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发表时间：
2006-02-01
影响因子：
2
通讯作者：
Katagiri, Makoto
中科院分区：
文献类型：
--
作者：
Fujikake, Kazunori;Senga, Takanori;Katagiri, Makoto
本研究的目的是通过实验检查 RPC（活性粉末混凝土）梁的冲击响应，并开发一个分析模型来表示其冲击响应。因此，进行了落锤冲击试验，以研究锤落高度对RPC梁冲击响应的影响。随后，进行静态弯曲加载试验，以确定RPC梁在冲击加载后的残余承载能力。在冲击分析中，采用了二自由度质量-弹簧-阻尼器系统模型。当假设接触点局部响应具有高阻尼时，分析结果与实验结果非常吻合。
The aim of this study was to experimentally examine the impact response of a RPC (Reactive Powder Concrete) beam and develop an analytical model to represent its impact response. Thus, a drop hammer impact test was performed to investigate the influence of drop height of the hammer on the impact response of the RPC beam. Subsequently, a static flexural loading test was conducted to find out the residual load carrying capacity of the RPC beam after impact loading. In the impact analysis, the two degrees of freedom mass-spring-damper system model was used. The analytical results were in good agreement with the experimental results when high damping for the local response at the contact point was assumed.