科技资讯
科技資訊
과기자신
SCIENCE & TECHNOLOGY INFORMATION
2014年
26期
63-65
,共3页
组合式护栏%护栏立柱间距%碰撞仿真
組閤式護欄%護欄立柱間距%踫撞倣真
조합식호란%호란립주간거%팽당방진
New Double-beams Guardrail%Column Spacing of Guardrail%Impact Simulation
针对国内某高速中央分隔带护栏升级改造问题，提出了中央隔离带组合式护栏方案，建立了组合式护栏的三维汽车—护栏碰撞仿真模型，并针对不同的护栏立柱间距进行了汽车碰撞仿真模拟研究。结果表明，利用中央隔离带旧护栏改造为组合式护栏满足规范要求，可以有效地降低成本，为高速公路中央分隔带护栏改造提供依据。
針對國內某高速中央分隔帶護欄升級改造問題，提齣瞭中央隔離帶組閤式護欄方案，建立瞭組閤式護欄的三維汽車—護欄踫撞倣真模型，併針對不同的護欄立柱間距進行瞭汽車踫撞倣真模擬研究。結果錶明，利用中央隔離帶舊護欄改造為組閤式護欄滿足規範要求，可以有效地降低成本，為高速公路中央分隔帶護欄改造提供依據。
침대국내모고속중앙분격대호란승급개조문제，제출료중앙격리대조합식호란방안，건립료조합식호란적삼유기차—호란팽당방진모형，병침대불동적호란립주간거진행료기차팽당방진모의연구。결과표명，이용중앙격리대구호란개조위조합식호란만족규범요구，가이유효지강저성본，위고속공로중앙분격대호란개조제공의거。
For the problem that the upgrade issue of domestic high-speed central median guardrail, a new double-beams highway guardrails was proposed. The 3D collision model of guardrail and vehicle was created, and the collisions in different column?spacing are simulated. The results indicated that the new double-beams highway guardrail which has lower cost and barrier recycle meets regulatory requirements. It provides the basis for reconstruction on China's central highway and can be applied in our country’ s expressway barrier reconstruct.
