Regarding the construction requirements of bridge anti-collision guardrails, this topic has been brought up again recently, and I will take this opportunity to organize an article related to this for your reference.
The in-depth analysis of the construction requirements of bridge anti-collision guardrails mainly includes the following aspects:
1. Material requirements: choose anti-collision guardrail materials that meet national standards, including metal anti-collision guardrails, brackets, connectors, etc. Ensure that the material quality is qualified, no damage, no rust, no cracks and other problems.
2.Design requirements: determine the height, width, spacing and other parameters of the anti-collision guardrail according to the design requirements, and make appropriate adjustments according to the actual situation. Ensure the stability and impact resistance of the guardrail.
3.Foundation treatment: Before construction, the foundation of the bridge needs to be treated, including cleaning up waste, removing weeds, etc., to ensure that the construction environment is clean and tidy. For the old crash barrier, it needs to be dismantled.
4.Installation process: The specific construction process is as follows:
According to the design requirements, determine the location and arrangement of the crash barrier, and mark the line.
Mounting Bracket: Fix the bottom of the bracket to ensure that the bracket is firm and stable.
Install the guardrail: Connect the guardrail with the bracket to ensure that the connection is tight and not loose.
Connecting the guardrails: According to the design requirements, install the connectors to connect the guardrails together.
Adjustment and correction: Adjust and correct the installed guardrail to ensure that the parameters such as horizontal, vertical and straightness meet the requirements.
Fixation and firmness check: Use special tools to check the fixation and firmness of the crash barrier to ensure that the barrier will not fall off or loosen under the impact.
5.Acceptance requirements:
Carry out safety inspection: check whether the anti-collision guardrail is firm and flat, whether the components are connected and tightened, and there is no loosening.
Check the obstruction of the line of sight: Check whether the guardrail blocks the line of sight, especially in the bridge arch bridge and other parts, it is necessary to ensure the safety of driving.
Check the appearance quality: check whether the surface of the anti-collision guardrail is flat, no damage, no rust, no leakage and other phenomena.
Carry out impact test: Carry out impact test according to national standards to verify whether the impact resistance of the anti-collision guardrail meets the requirements.
Through the in-depth analysis of the construction requirements of the bridge anti-collision guardrail, it can ensure that the standard requirements are met in the construction process and the safety and service life of the guardrail can be ensured. At the same time, through strict acceptance, it can ensure that the quality and performance of the anti-collision guardrail meet the design requirements, and provide a safer guarantee for road traffic.