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为了对槽型中分带混凝土护栏的支撑块功能进行分析,本文采用高精度计算机仿真与台车试验相结合的技术手段进行分析论证,重点分析了设置支撑块与未设置支撑块对槽型中分带混凝土护栏防护功能的影响。结果表明:在中分带混凝土护栏的槽底设置支撑块可传递车辆碰撞时的冲击力,使两排护栏达到协同防护的作用,从而防止护栏倾覆并改善碰撞后车辆行驶姿态。可见支撑块是槽型中分带混凝土护栏起安全防护作用的关键部件,因此在实际工程中建议设置支撑块。
In order to analyze the function of supporting block of the sub-band concrete fence in the trough, this paper analyzes and verifies by the technical means combining the high-precision computer simulation with the trolley test, and emphatically analyzes the influence of setting the supporting block and the supporting block Impact of Fencing Protective Function of Concrete Fence. The results show that the support block can be used to transmit the impact force of the vehicle at the bottom of the middle divider concrete guardrail so that the two guardrails can cooperate to prevent the guardrail from overturning and improve the vehicle attitude after the collision. It can be seen that the support block is a key component of the slotted mid-band concrete guardrail for safety protection. Therefore, it is suggested that a support block be provided in practical projects.