期刊论文

Simulation research on the reinforced concrete column under vehicle collision

中文

湖南城市学院学报(自然科学版)

1672-7304

2022

31

3

6-12

10.3969/j.issn.1672-7304.2022.03.0002

湖南省教育厅科研项目（18C0837）；

本校为第一机构

为研究钢筋混凝土(RC)柱在车辆冲击荷载下的抗冲击性能,采用经过参数优化后的混凝土连续面盖帽模型(CSCM)对RC柱在车辆冲击下的损伤破坏过程进行了全过程模拟分析,并利用已有试验数据对建模方法进行了验证.分析结果表明:RC柱在车辆撞击下,冲击接触区易形成塑性铰机构且柱的失效模式为剪切失效;RC柱与车辆碰撞接触时,会产生峰值很高的侧向冲击力,其抗冲击性能由抗剪承载力、惯性效应以及局部变形和破坏程度决定;通过将RC柱动态抗冲击能力与需求分为不同的性能水平,并将损伤水平与之相关联,可以实现在不同车重与车速撞击下,RC柱均能达到设计需要的抗冲击性能水平.

In order to study the impact resistance of reinforced concrete columns under vehicle collisions,the whole simulation analysis process of the failure process of RC columns under vehicle collisions was carried out by using an optimized concrete continuous surface cap model(CSCM). At the same time, the modeling method was also verified by the existing test data. The analysis results show that under the vehicle impact loading, a plastic hinge mechanism may be formed in the impact contact area of the RC column, and the failure mode of the column is a shear failure under the vehicle impact loading. ...