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首页> 外文会议>6th International conference on advanced composite materials in bridges and structures 2012 >CRASHWORTHINESS OF PL-3 CONCRETE BRIDGE BARRIER REINFORCED WITH SAND-COATED GFRP BARS
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CRASHWORTHINESS OF PL-3 CONCRETE BRIDGE BARRIER REINFORCED WITH SAND-COATED GFRP BARS

机译：砂面玻璃纤维增​​强筋加固的PL-3混凝土桥梁障碍物的抗冲击性能

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摘要

Corrosion of steel reinforcement due to environmental effects is a major cause of deterioration problems in bridge barriers. Glass fibre reinforced polymers (GFRP), not only addresses this durability problem but also provides exceptionally high tensile strength. A recent design work conducted at Ryerson University on PL-3 bridge barrier proposed three different barrier configurations incorporating GFRP bars with headed ends, bent bars and bars with 180° hooks. A PL-3 barrier wall of 27.6 m length was constructed using the proposed first GFRP bar configuration, incorporating bars with headed ends, to perform vehicle crash testing. This paper summarizes the procedure and the results of the vehicle crash test conducted on the developed barrier. The crash test was performed in accordance with MASH Test Level 5 (TL-5), which involves the 36000V tractor trailer impacting the barrier at a nominal speed and angle of 80 km/h and 15° degrees, respectively. Crash test results showed that the barrier contained and redirected the vehicle. The vehicle did not penetrate or override the parapet. No detached elements, fragments, or other debris from the barrier were present to penetrate or show potential for penetrating the occupant compartment, or to present undue hazard to others in the area. No occupant compartment deformation occurred. The test vehicle remained upright during and after the collision event.
机译：由于环境影响而造成的钢筋腐蚀是造成桥梁障碍物恶化问题的主要原因。玻璃纤维增​​强聚合物（GFRP）不仅解决了这种耐久性问题，而且还提供了极高的拉伸强度。瑞尔森大学（Ryerson University）最近对PL-3桥式护栏进行的设计工作提出了三种不同的护栏配置，其中包括带头部的GFRP杆，弯曲的杆和带有180°钩的杆。使用拟议的第一个GFRP杆结构（包括带头部的杆）构造了长度为27.6 m的PL-3隔离墙，以进行车辆碰撞测试。本文总结了在已开发的障碍物上进行的车辆碰撞测试的程序和结果。碰撞测试是根据MASH测试级别5（TL-5）进行的，该测试涉及36000V牵引拖车以标称速度和80 km / h和15°度的角度分别撞击护栏。碰撞测试结果表明，障碍物围住并重定向了车辆。车辆未穿透或越过护栏。没有障碍物的分离元素，碎片或其他碎屑穿透或显示出穿透乘员舱的潜力，或对该区域的其他人员造成不适当的危害。没有发生乘员舱变形。在碰撞事件期间和之后，测试车辆保持直立。

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