海口高速桥梁护栏 琼海天桥护栏 景观护栏定做
Haikou high speed bridge guardrail Qionghai overpass guardrail landscape guardrail customized
受碰撞后的护栏变形程度：受碰撞后护栏的大动态变形量不应超过可允许的变形距离。
Deformation degree of guardrail after collision: the large dynamic deformation of guardrail after collision shall not exceed the allowable deformation distance.
该原则主要是考虑车辆碰撞后是否允许一定的变形。
The principle is mainly to consider whether a certain deformation is allowed after vehicle collision.
例如：桥梁结构物一般都位于地面以上很高处。
For example, bridge structures are generally located at a high place above the ground.
