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Method and system for testing mechanical property of existing road sound barrier

A test method and sound barrier technology, applied in the direction of using stable tension/pressure to test the strength of materials, etc., to achieve the effect of low cost, short time and obvious effect

Inactive Publication Date: 2014-08-27
BEIJING CCCC QIAOYU SCI & TECH
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  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for testing the mechanical properties of existing road sound barriers, which are used to solve the technical problem of on-site mechanical performance testing of existing road sound barriers

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  • Method and system for testing mechanical property of existing road sound barrier
  • Method and system for testing mechanical property of existing road sound barrier
  • Method and system for testing mechanical property of existing road sound barrier

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Embodiment Construction

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0025] Such as figure 1 and figure 2 As shown, the sound barrier includes a column 1 and a sound insulation panel 2, and the column 1 is fixed on the road by bolts. This embodiment provides a method for testing the mechanical properties of existing sound barriers on roads, such as image 3 shown, including the following steps:

[0026] Step 1, select strain measuring point 3, column displacement measuring point 4 and bolt displacement measuring point 5 on the sound barrier;

[0027] Step 2, in order from small to large, apply horizontal thrust loads to the middle part of the sound barrier column;

[0028] Step 3: After each level of horizontal thrust load is applied, measure the stress changes at the strain mea...

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Abstract

The invention relates to a method and a system for testing mechanical property of an existing road sound barrier. The sound barrier comprises an upright post and a sound insulation screen board, wherein the upright post is fixed on the road through a bolt. The method comprises the following steps: step 1, selecting a strain measuring point, an upright post displacement measuring point and a bolt displacement measuring point on the sound barrier; step 2, applying horizontal thrust loads to the middle of the upright post of the sound barrier in a grading mode, wherein the horizontal thrust loads are from small to big; and step 3, measuring the stress change condition of the strain measuring point, the horizontal direction displacement change condition of the upright post displacement measuring point and the vertical displacement change condition of the bolt displacement measuring point after the horizontal thrust load of each grade is completely applied. The mechanical property of the existing sound barrier of the road can be detected on site under the condition that the existing sound barrier of the road is not damaged, and the system is easy to operate, low in cost, short in time and obvious in effect.

Description

technical field [0001] The invention relates to the field of engineering quality detection, in particular to a method and system for testing the mechanical properties of existing sound barriers on roads. Background technique [0002] With the continuous increase of urban traffic facilities and vehicles, the distance between roads and residents is gradually shortened. In order to prevent the noise of vehicles from affecting the normal work and life of residents, more and more sound barriers are set up on urban roads to prevent noise pollution. [0003] Urban roads are the main arteries of urban traffic and have the characteristics of large traffic volume. Once the sound barrier on the road overturns, it will cause serious traffic accidents and pose a huge threat to the safety of vehicles and pedestrians under the viaduct. Existing road noise barriers refer to the sound barriers that have been installed on the road. At present, the "Technical Regulations for Road Sound Barrie...

Claims

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Application Information

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IPC IPC(8): G01N3/10
Inventor 何杰张锐陈鹏王学博
Owner BEIJING CCCC QIAOYU SCI & TECH
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