What should be paid attention to when installing the guardrail?
发布时间 :
2023-03-02
The guardrail is a highway anti-collision facility, mainly to prevent out-of-control vehicles from rushing out of the road. The materials are generally processed by galvanized steel sheets, and different specifications are adopted according to different road grades. In professional terms, “It is a continuous structure that is spliced with corrugated steel guardrails and supported by main columns.”
The guardrail is a highway anti-collision facility, mainly to prevent out-of-control vehicles from rushing out of the road. The materials are generally processed by galvanized steel sheets, and different specifications are adopted according to different road grades. In professional terms, “It is a continuous structure that is spliced with corrugated steel guardrails and supported by main columns.” It uses the physical deformation of soil foundations, columns, and beams to absorb the energy generated by collisions and force The out-of-control vehicle changes the direction of travel and returns to the normal direction of road travel.
The guardrail not only has a strong ability to absorb and collide, but also has a relatively good guiding function, which can reflect each other with the road, and can be used at small radius bends. As for the damaged place, it is also very convenient for maintenance . So, what are the three points that must be paid attention to in the installation of corrugated guardrails?
1. In the section where a high retaining wall is set, it should be considered whether the foundation of the guardrail column is firm. When the radius of the curve is less than 70m, the usual guardrail (single piece length 4m) can no longer be used, but curved beams are used, and the number of curved beams should be counted separately according to different radii during design.
2. When installing galvanized guardrails, lay them out according to the filling height, slope slope, and the conditions of the protected objects. Through the overall protection of the guardrail and the correct guidance of the vehicle. Before laying out, you should be familiar with the routes along the line and the design of bridges and culverts, and give them full consideration.
3. When guardrails are used in the separation zone, fully consider the cooperation with the embedded pipeline under the separation zone. If a separate guardrail is used, the conflict between the guardrail column and the embedded pipe should be prevented at the opening of the partition belt. In addition, attention should be paid to the use of guardrails with anti-blocking blocks at the sharp bends, which not only increases the deformation capacity of the guardrail, but also makes the column move backward. , so as to ensure that the vehicle hits the wave-shaped guardrail first, preventing the wheels from being blocked by the guardrail column, and the performance is high.
The setting of the guardrail is to ensure the safety of driving and pedestrians. The correct and appropriate installation method makes the wave guardrail stronger and can play a major role in making everyone have a comfortable travel experience.
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