摘要
随着我国高速公路交通运输条件的发展,特别是山区高速公路建设的增加,人们对交通安全的要求也在逐步地提高。本文旨在通过动态数值模拟的车辆和护栏模型,利用Ls-dyna有限元分析软件,对常吉高速公路拟采用的新型砼护栏进行动态数值模拟分析,并与实车碰撞试验进行比对。研究得到的结果是实车碰撞试验所得的指标数据与数值模拟计算结果基本吻合,完全符合安全评价标准的要求。
With the development of the traffic conditions on the expressway and more construction activities of expressway on mountainous regions, the requirements on traffic safety of expresspway are improving. This article aims at establishing dynamic numeric model of vehicle （ inculding passenger car and bus） and concrete barrier, using Ls - dyna finite element analysis software, making dynamic numeric sil-mulation and analysis for the cocnrete barrier to be used in Changji Expressway, and making comparison with the results from crash test. The value of indicators from the crash tests are basically concidence with calculation of the numerical simulation and meet the requirements set forth in the related Safety Evaluation Standards.
出处
《公路工程》
2008年第4期25-28,共4页
Highway Engineering
基金
湖南省交通厅科技项目(200638)
关键词
高速公路
新型砼护栏
数值模拟
分析
Expressway
New type of concrete safety barrier
Numerical simulation
Analysis
