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In-situ static-loading safety performance detection method of waveform beam guardrail

A technology of corrugated beam guardrail and safety performance, which is applied in the direction of measuring device, testing of mechanical parts, testing of machine/structural parts, etc. Detecting the effect of convenient and quick operation

Active Publication Date: 2014-12-03
招商局重庆公路工程检测中心有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the full-scale crash test method is recognized as the most direct and effective method, it can only be carried out in the laboratory, and it is a destructive test, the cost of the test is extremely high, and the results of the test are difficult to evaluate the safety performance of the guardrail on the engineering site
Although computer simulation has high theoretical guiding significance, the consistency with the actual road safety system still needs to be tested in practice

Method used

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  • In-situ static-loading safety performance detection method of waveform beam guardrail
  • In-situ static-loading safety performance detection method of waveform beam guardrail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 , figure 2 As shown, the on-site static load detection method for the safety performance of the corrugated beam guardrail includes the following steps:

[0030] 1) Select the midpoint position of the wave beam guardrail 1 between two adjacent columns 2 as the test position, install a steel coupling block 3 at the test position, and the steel coupling block 3 is located inside the wave beam guardrail 1 (facing the highway on the side of the side). The steel coupling block 3 is a square structure, and there is a wave-shaped groove on the surface of the steel coupling block 3 facing the wave beam guardrail 1. The shape and size of the wave-shaped groove adapt to the section of the wave beam guardrail 1, and the wave The inner surface of the groove and the steel coupling block 3 is fully fitted. The steel coupling block 3 can be hooked on the corrugated beam guardrail 1 through the hook provided at its upper end, and the steel coupling block 3 can also ...

Embodiment 2

[0038] In this embodiment, step 6) is: load the hydraulic jack 6 once, so that the pressure of the hydraulic jack 6 is 5t, and the hydraulic jack 6 applies a lateral thrust to the steel coupling block 3, and the wave beam guardrail 1 deforms under pressure.

[0039] The rest of the steps in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0041] In this embodiment, step 6) is: load the hydraulic jack 6 once so that the pressure of the hydraulic jack 6 is 8t, the hydraulic jack 6 applies a lateral thrust to the steel coupling block 3, and the wave beam guardrail 1 deforms under pressure.

[0042] The rest of the steps in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a method for an in-situ static-loading safety performance detection method of a waveform beam guardrail. The method comprises the following steps of: selecting a test position; placing a steel coupling block, a test vehicle, a counter-acting force bearing base, a hydraulic jack, a camera and a displacement measuring scale; loading the hydraulic jack; and acquiring a measuring result and other steps. With the method, a safety performance of a road waveform beam guardrail in an engineering field without restriction of a site and a road condition, not only implementation cost is low, but also detecting operation is convenient and rapid, detecting efficiency is high, and a detecting result is accurate and reliable. The method can help a highway operation management unit to master a safety control performance of road section traffic safety facilities belonging to the highway operation management unit, and can be used as a means of a quality supervision unit for carrying out supervision and random inspection for guardrail construction quality.

Description

technical field [0001] The invention belongs to the technical field of road traffic, and in particular relates to a method for on-site measurement of the safety performance of a road wave-beam guardrail, which is mainly used for on-site measurement of the safety performance of a road wave-beam guardrail. Background technique [0002] While my country's highways are promoting the rapid development of the national economy, the high incidence of highway traffic accidents and death rates have also brought many adverse effects to the rapid development of the economy, the continued stability of the society, and the safety of people's lives and properties. The guardrails of highways, especially expressways, are mainly corrugated beam steel guardrails. Many serious traffic accidents have occurred when vehicles smashed through the guardrails and rushed out of the road. Therefore, the safety performance of the guardrail is of great significance to the protection of traffic safety. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 邹小春须民健郭兴隆付立家陈晓利田川李茂华韩直苏宇峰周广振袁源谢耀华秦茂昭
Owner 招商局重庆公路工程检测中心有限公司