W型梁护栏
在日常使用碰撞护栏时，使用W型梁护栏是应用最广泛的。 W型梁护栏可用于公路防撞栏，普通公路（省道，县道，乡镇公路等）防撞栏，厂区，施工现场，森林公园等防护隔离，以及农场建设。
W型梁护栏板系统原理：
W型护栏板是半刚性护栏的主要形式，它是一种彼此连接的波纹钢护栏板，连续结构由支柱支撑。
它利用土基，立柱，梁的变形吸收冲击能量，并将力量失控的车辆变换方向，恢复到正常行驶方向，防止车辆驶出，以保护车辆和乘客，减少事故造成的损失。
W型护栏强而柔软，吸收碰撞能量能力强，具有良好的视线感应功能，可与道路走线保持一致，造型美观，可在小半径曲线中使用，便于更换损坏
W型热镀锌护栏具有良好的抗冲击性，低成本，长寿命，高安全性和绿色环境。良好的抗腐蚀性能，抗老化，美观大方;易于安装功能。
W型护栏用于防止车辆冲出，不仅保护车辆和乘客，而且减少了一些事故的发生。
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