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首页> 外文会议>Annual conference of the Canadian Society for Civil Engineering >Vehicle Crash Testing on PL-3 Concrete Bridge Barrier Reinforced with Sand-coated GFRP Bars with Headed Ends
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Vehicle Crash Testing on PL-3 Concrete Bridge Barrier Reinforced with Sand-coated GFRP Bars with Headed Ends

机译：用带头沙包玻璃纤维增​​强筋加固的PL-3混凝土桥梁护栏的车辆碰撞测试

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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. The sand-coated surface profile of the studied GFRP bars and end anchorage heads ensure optimal bond between concrete and the bar and eliminate the use of custom made bar bends. A recent design work conducted at Ryerson University on PL-3 bridge barrier proposed the use of 15M and 13M diameter GFRP bars as vertical reinforcement in the barrier front and back faces, respectively, with 15M diameter GFRP bars as horizontal reinforcement in the barrier wall, all at 300 mm spacing. The connection between the deck slab and the barrier wall utilized the GFRP headed end bars for proper anchorage. This paper summarizes the procedure and the results of a recent 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。所研究的GFRP钢筋和末端锚固头的砂涂层表面轮廓确保了混凝土与钢筋之间的最佳粘结，并且消除了使用定制钢筋弯曲的麻烦。瑞尔森大学（Ryerson University）最近对PL-3桥梁屏障进行的设计工作建议，分别在屏障的前后表面使用15M和13M直径的GFRP筋作为竖向钢筋，在屏障壁中分别使用15M直径的GFRP筋作为水平钢筋，全部间隔为300毫米。楼板和挡土墙之间的连接利用GFRP端头的端杆进行适当的锚固。本文总结了在已开发的障碍物上进行的最新车辆碰撞测试的过程和结果。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。没有障碍物的任何分离元素，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。在碰撞事件发生期间和之后，测试车辆保持直立。

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