湖南大学学报（自然科学版）2019，Vol.46Issue(1)：1-8,8.DOI:10.16339/j.cnki.hdxbzkb.2019.01.001
基于多尺度模型的立体车库车辆撞击性能研究
Research on Vehicle Impact Performance of Tridimensional Parking Structure Based on Multi-scale Model
摘要
Abstract
To study the dynamic responses of a tridimensional parking structure subjected to vehicle impact, a multi-scale and refined finite element models of the tridimensional parking structure were established based on AN-SYS/LS-DYNA finite element software. The accuracy and efficiency of these two models were compared, and the ap-plicability of the multi-scale model was verified. Based on the multi-scale model, the dynamic responses of the tridimensional parking structures were examined, and the influences of various factors, such as the impact velocity, vehicle mass, impact position, and working condition were investigated. Additionally, the impact force was studied and compared with the allowances given in Chinese code, American code, and European code. The results indicate that the vehicle impact has a local effect on the tridimensional garage; the impact velocity and vehicle mass have a great influence on the dynamic responses of the tridimensional garage, while the impact position and working condition present no obvious effect; the impact velocity has a greater influence on the impact force. However, when the impacted column is failed, the peak value of the impact force would not change with the increase of the impact velocity and vehicle mass; for the tridimensional parking structure subjected to vehicle impact, the values of the impact force given in Chinese code and Europe code are not reliable in some cases, but the value given in American code is safe.关键词
多尺度模型/立体车库/汽车撞击/动力响应/撞击力Key words
multi-scale model/tridimensional parking structure/vehicle impact/dynamic response/impact force分类
建筑与水利引用本文复制引用
贺拥军,姜玉婷,周绪红..基于多尺度模型的立体车库车辆撞击性能研究[J].湖南大学学报（自然科学版）,2019,46(1):1-8,8.基金项目
国家重点研发计划项目(2016YFC0701202) （2016YFC0701202）
国家自然科学基金资助项目(51878261) （51878261）
湖南省高校科技创新团队滚动资助计划项目(湘财教指(2015)616号) （湘财教指(2015）
