| 新型链式混凝土防撞活动护栏开发 |
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| 引用本文： | 梁亚平,马亮,闫书明.新型链式混凝土防撞活动护栏开发[J].特种结构,2011,28(5):87-90,100. |
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| 作者姓名： | 梁亚平 马亮 闫书明 |
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| 作者单位： | 北京中路安交.科技有限公司 100071 |
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| 基金项目： | "十一五"国家科技支撑计划，重特大道路交.事故综合预防与处置集成技术开发与示范应用项目课题 |
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| 摘 要： | 提出链式混凝土防撞活动护栏结构,建立有限元仿真模型,并采用LS-DYNA显式有限元程序进行求解,最后利用实车碰撞试验对活动护栏进行安全评价。试验结果表明：碰撞后车辆能够恢复正常行驶姿态;小车、大车碰撞时护栏最大动态位移试验结果分别为1140mm、1250mm,仿真结果分别为1100mm、1430mm;小车、大车驶出角度试验结果分别为10.2°、6.8°,仿真结果分别为11.6°、7.6°;小车在行车方向、车宽方向、车高方向的加速度最大值试验结果分别为6.17g、9.4g、9.78g,仿真结果分别为8.1g、13.1g、7.2g。链式混凝土活动护栏各项指标满足评价标准要求,防撞能力达到93kJ。
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| 关 键 词： | 交通设施 活动护栏 碰撞试验 有限元分析 链式混凝土结构 |
Development on a New Type of Crashworthy Movable Barrier with a Chain of Concrete Structure |
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| Liang Yaping MaLiang Yan Shuming.Development on a New Type of Crashworthy Movable Barrier with a Chain of Concrete Structure[J].Special Structures,2011,28(5):87-90,100. |
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| Authors: | Liang Yaping MaLiang Yan Shuming |
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| Affiliation: | Liang Yaping MaLiang Yan Shuming (Beijing Zhongluan Traffic Technology Co.,Ltd,100071,China) |
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| Abstract: | A new type of movable barrier was developed as a chain of concrete structure.Finite element models were set up and solved using LS-DYNA explicit FEA software,and the safety performance of movable barrier was proved by full-scale impact tests.The results indicate that the vehicles come back to normal run performance after impact;test results of the barrier maximum dynamic deformation is 1140 mm with car impact and 1250 mm with bus impact,and simulation result of that is 1100mm with car impact and 1430 with b... |
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| Keywords: | Traffic facility Movable barrier Full-scale impact test Finite element analysis Chain of concrete structure |
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