Advantages of bridge guardrail

The characteristics of the guardrail are good impact resistance, low cost, long life, higher safety, green environmental protection, good anti-corrosion performance, anti-aging, beautiful appearance, easy and quick installation, etc. Guardrails are mainly used for highway collision avoidance, isolation and other functions. It is one of the guardrail boards that are often used on highways.

Bridge guardrail refers to the guardrail installed on the bridge. Its purpose is to prevent out-of-control vehicles from getting out of the bridge, and to prevent vehicles from breaking through, under-crossing, overpassing the bridge, and beautifying the bridge building.

• Function: Isolation guardrail bears the responsibility of maintaining traffic order. When a traffic accident occurs, it needs to use its own deformation or its own height to prevent vehicle movement and prevent secondary injuries.
• Less land occupation: Isolation barriers are installed on both sides and the center of the road, which requires isolation barriers to occupy less land and do not affect the passage of vehicles and pedestrians.
• Simple maintenance: There are many isolation fences, high maintenance costs, and certain maintenance risks when installed on the road. If the road is isolated for maintenance, it will inevitably affect the traffic, so the maintenance of the isolation barrier must be very simple and can be completed in a short time.
• Harmonious appearance: As a part of the urban landscape, the isolation fence has certain requirements in aesthetics, and must echo the urban culture under the premise of playing its own role.
• Cooperate with existing traffic settings: the use of isolation barriers must consider the current local traffic management level and actual traffic settings, and consider the interaction with electromechanical systems, such as monitoring and communication.

The quality of the isolation fence should not only consider the quality of the isolation fence itself, but also improve the aesthetics of the isolation fence under the premise of realizing the function. At the same time, the quality of the isolation barrier is also closely related to the role of the isolation barrier in traffic. A high-quality isolation barrier will only take effect when the isolation barrier is used in conjunction with other traffic settings to maximize functionality.

The selection of bridge guardrail form should firstly determine the anti-collision grade according to the highway grade, comprehensive consideration of its safety, coordination, characteristics of the object to be protected, and site geometric conditions, and then according to its own structure, economy, construction and maintenance. Factors such as the choice of structural form. The embedding method includes three methods: the column directly embedded, the flange connection type, and the bridge guardrail and the bridge deck are poured into one body through the force-transmitting steel bars. When conditions permit, the removable guardrail can be used.