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A Crack Width Measuring Device for Detecting Bridge Bottom

A crack width and measuring device technology, applied in measuring devices, mechanical measuring devices, mechanical devices, etc., can solve problems such as inappropriate use of large bridge inspection vehicles and frequent crack detection

Active Publication Date: 2021-03-30
FUJIAN YONGZHENG CONSTR QUALITY INSPECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to detect the width of cracks. This kind of bridge bottom crack detection is more frequent, and it is not suitable to use large bridge inspection vehicles.

Method used

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  • A Crack Width Measuring Device for Detecting Bridge Bottom
  • A Crack Width Measuring Device for Detecting Bridge Bottom
  • A Crack Width Measuring Device for Detecting Bridge Bottom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0030] refer to Figure 5-6, different from Embodiment 1, the side of the second main arm 19 is fixedly connected with a control box 23, the upper surface of the control box 23 is fixedly connected with a fixed cable block 24, and the inside of the control box 23 is fixedly connected with a micro servo motor 25, The lower surface of the control box 23 is provided with an annular groove 26, the interior of the annular groove 26 is fixedly connected with a slider 27, the lower surface of the slider 27 is fixedly connected with a vertical rod 28, and the back of the vertical rod 28 is rotatably connected with a horizontal block 29 , the upper surface of the horizontal block 29 is provided with a movable groove 30, the inside of the movable groove 30 is slidably connected with a distance sensing device 31, and the upper surface of the distance sensing device 31 is fixedly connected with a high-definition camera device 32 and an illuminating lamp 33 respectively, and the distance se...

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Abstract

The invention discloses a bridge bottom surface crack width measurement device, which comprises a small moving platform. The upper surface of the small moving platform is provided with a lifting platform; the upper surface of the lifting platform is fixedly connected with a take-up roller; the upper surface of the lifting platform is fixedly connected with a first main arm; and the side surface ofthe first main arm is fixedly connected with a first fixing block. According to the bridge bottom surface crack width measurement device disclosed in the invention, through arranging a servo motor, arotating horizontal baffle, an electric telescopic rod, an electromagnetic ring and an electromagnetic block, connection between the rotating horizontal baffle and a second fixing block is more stable when the rotating horizontal baffle is rotated inside the second fixing block; and through arranging two first fixing blocks and a distance sensing device, the device can transfer a force point, crossing a vertical guard bar on the upper surface of the bridge is facilitated, and the bridge bottom surface crack width measurement device disclosed in the invention has the effect of flexible guard bar crossing detection.

Description

technical field [0001] The invention relates to the technical field of detection instruments, in particular to a crack width measuring device for detecting the bottom surface of a bridge. Background technique [0002] The problem of cracks on the bottom of bridges is a problem that people generally care about. For concrete structures, the existence of cracks is a very common phenomenon. A lot of scientific research and practice have proved that cracks in concrete structures are inevitable, and the load when cracks appear is usually 15%-25% of the ultimate load. Under the normal load, the reinforced concrete upper structure generally works with cracks. Generally, the range of cracks visible to the naked eye is 0.02-0.05mm, and the crack width is less than 0.05mm. The impact can be ignored. When the crack width reaches a certain value, it may also endanger the safety of the structure. Therefore, it is necessary to detect the width of cracks. The detection of cracks on the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02G01B11/14G01B5/00
CPCG01B5/0002G01B11/02G01B11/14
Inventor 何杰谢坤明晁鹏飞余印根缪锋
Owner FUJIAN YONGZHENG CONSTR QUALITY INSPECTION CO LTD
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