| 钢管预应力索防撞活动护栏开发 |
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| 引用本文： | 闫书明, 白书锋. 钢管预应力索防撞活动护栏开发[J]. 交通运输工程学报, 2010, 10(2): 41-45. doi: 10.19818/j.cnki.1671-1637.2010.02.008 |
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| 作者姓名： | 闫书明 白书锋 |
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| 作者单位： | 北京中路安交通科技有限公司, 北京 100071 |
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| 基金项目： | 中关村科技园区小企业创新支持资金项目(08Z004);;科技型中小企业技术创新基金项目(09C26221100154) |
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| 摘 要： | 采用钢管和预应力钢索组合结构, 开发出新型防撞活动护栏, 分析了活动护栏碰撞试验条件和安全评价标准, 建立了有限元仿真模型, 并采用LS-DYNA显式有限元程序进行求解, 最后利用实车足尺碰撞试验对活动护栏进行安全评价。试验结果表明: 该护栏防撞能力达到160 kJ; 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972、1 093 mm, 仿真结果分别为913、1 100 mm; 小车、大车驶出角度试验结果分别为10.2°、0°, 仿真结果分别为9.1°、0°。仿真结果与试验结果一致, 活动护栏满足评价标准要求。
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| 关 键 词： | 交通设施 活动护栏 足尺碰撞试验 有限元分析 钢管预应力索 碰撞条件 |
| 收稿时间： | 2009-11-18 |
Development of crashworthy movable barrier with pretension wire in tube |
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| YAN Shu-ming, BAI Shu-feng. Development of crashworthy movable barrier with pretension wire in tube[J]. Journal of Traffic and Transportation Engineering, 2010, 10(2): 41-45. doi: 10.19818/j.cnki.1671-1637.2010.02.008 |
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| Authors: | YAN Shu-ming BAI Shu-feng |
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| Affiliation: | Beijing Zhonglu'an Traffic Science and Technology Co., Ltd., Beijing 100071, China |
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| Abstract: | A new type of crashworthy movable barrier was developed with pretension wire in tube structure,the impact condition and safety evaluation specification of movable barrier were analyzed,finite element models were set up and solved by using LS-DYNA explicit software,and the safety performance of movable barrier was proved by full-scale impact tests.Test result indicates that the crashworthiness of movable barrier reaches 160 kJ,and vehicles come back to normal running performance after impact.Barrier maximum ... |
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| Keywords: | traffic facility movable barrier full-scale impact test finite element analysis pretension wire in tube impact condition |
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