固定道路限高架分为固定一体限高架桥和固定冲不坏限高架桥。固定一体限高架桥是一次性的不可调节的高度极限高架桥,依靠架子本身来拦截车辆,在紧急情况下可以通过固定碰撞极限高架桥来实现 车辆通道必须依靠外力来举起,例如起重机;固定限位高架桥主要用于桥梁,涵洞和隧道入口处的门架。 通常用钢结构焊接以保护桥梁,涵洞和隧道。有一个标有有限数量的高米的标志,用于提示车辆。
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