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Vertical prestressed steel bar detection module and detection method for bridge concrete construction

A technology of vertical prestressing and detection methods, applied in the direction of measuring force, measuring devices, instruments, etc., can solve the problems of vertical prestressing reinforcement without a good method and equipment, bridge deck cracks or cracks, construction quality and construction Safety can not be effectively guaranteed and other problems, to achieve the effect of low production cost, construction quality and construction safety guarantee, and simple construction operation

Active Publication Date: 2018-06-19
ZHEJIANG XINGTU BRIDGE SPECIAL EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of the national economy and the development of infrastructure projects, the importance of bridge engineering in infrastructure construction has become increasingly apparent. Prestressed concrete construction has been widely used on bridges. The vertical prestressed steel bars in bridge concrete construction bear the load of concrete. The main force is the tension rod. Therefore, the vertical prestressed steel bars must be tightened during construction. If the vertical prestressed steel bars are unevenly stressed, engineering quality problems such as bridge deck cracks or cracks may occur, and serious construction safety problems will be caused. However, at present there is no good method and equipment for the detection of vertical prestressed steel bars. It is only judged by the personal experience and personal feeling of the construction workers, and it is all based on subjective judgments, so the construction quality and construction safety cannot be effectively guaranteed.

Method used

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  • Vertical prestressed steel bar detection module and detection method for bridge concrete construction
  • Vertical prestressed steel bar detection module and detection method for bridge concrete construction
  • Vertical prestressed steel bar detection module and detection method for bridge concrete construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the vertical prestressed steel bar detection module for bridge concrete construction according to the present invention includes a substrate 1 and a strain gauge 2, the strain gauge 2 is attached to the substrate 1, and the strain gauge 2 and the substrate 1 are relatively fixedly installed. The substrate 1 is provided with a through hole 10 . When the substrate 1 is deformed by force, the strain gauges 2 attached to the substrate 1 will also deform correspondingly.

[0023] In the present invention, the number of strain gages 2 attached to the substrate is one or more, and multiple strain gages 2 are attached to allow multi-point testing, thereby improving the accuracy of detection.

[0024] The strain gauge 2 of the present invention is pasted on the front or back of the substrate 1 .

[0025] The strain gauge 2 of the present invention is attached to the side surface of the substrate 1 .

[0026] The strain gage 2 of the present inventio...

Embodiment 2

[0029] Such as figure 2 As shown, the vertical prestressed steel bar detection module for bridge concrete construction according to the present invention includes a substrate 1 and a strain gauge 2, the strain gauge 2 is attached to the substrate 1, and the strain gauge 2 and the substrate 1 are relatively fixedly installed. The substrate 1 is provided with a through hole 10 . When the substrate 1 is deformed by force, the strain gauges 2 attached to the substrate 1 will also deform correspondingly.

[0030] The side wall of the opening 10 of the present invention is provided with a groove 101 , and the strain gauge 2 is attached and fixed in the groove 101 . The strain gauge 2 is arranged in the recessed groove 101 , the groove 101 is a harbor for accommodating the strain gauge 2 , and the strain gauge 2 can be effectively protected to avoid damage to the strain gauge 2 , thus affecting the test result.

[0031] The side wall of the opening 10 of the present invention is p...

Embodiment 3

[0033] Such as image 3 and Figure 4 As shown, the vertical prestressed steel bar detection method of bridge concrete construction, the steps are as follows: it includes a nut 3, a steel bar 4 and a strain tester 5, and the vertical prestressed steel bar detection module of the bridge concrete construction includes a substrate 1 and a strain gauge 2. The strain gauge 2 is pasted on the substrate 1, and the strain gauge 2 and the substrate 1 are relatively fixedly installed. The substrate 1 is provided with a through hole 10, and one end of the steel bar 4 penetrates through the hole 10 and is connected to the substrate 1. The nut 3 is threaded, the other end of the steel bar 4 is relatively fixed, the strain gauge 5 is connected to the strain gauge 2 to collect the data of the strain gauge 2, and the strain gauge 5 judges whether the tensile force of the reinforced section 41 is based on the data collected from the strain gauge 2 Meet the set requirements. The strain tester...

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Abstract

The invention relates to a vertical prestressed steel bar detection module and detection method for bridge concrete construction. The detection module comprises a base plate and strain pieces, the one or more strain pieces are attached to the base plate, the strain pieces and the base plate are installed in a relatively-fixed mode, and an opening penetrating through the base plate is formed in the base plate. According to the vertical prestressed steel bar detection method for bridge concrete construction, the vertical prestressed steel bar detection module for bridge concrete construction, a nut, a steel bar and a strain tester are included, the vertical prestressed steel bar detection module for bridge concrete construction comprises the base plate and the strain pieces, the one or more strain pieces are attached to the base plate, the strain pieces and the base plate are installed in a relatively-fixed mode, the opening penetrating through the base plate is formed in the base plate, one end of the steel bar penetrates through the opening and then is in threaded connection with the nut, the other end of the steel bar is relatively fixed, and the strain tester is connected with the strain pieces for collecting strain piece data and judges whether the pulling force of the stressed section of the steel bar meets the determined requirements or not according to the data collected from the strain pieces.

Description

technical field [0001] The invention is mainly applied to the concrete construction process in bridge construction, and in particular relates to a vertical prestressed reinforcement detection module and a detection method for bridge concrete construction. Background technique [0002] With the development of the national economy and the development of infrastructure projects, the importance of bridge engineering in infrastructure construction has become increasingly apparent. Prestressed concrete construction has been widely used on bridges. The vertical prestressed steel bars in bridge concrete construction bear the load of concrete. The main force is the tension rod. Therefore, the vertical prestressed steel bars must be tightened during construction. If the vertical prestressed steel bars are not uniformly stressed, there may be engineering quality problems such as bridge deck cracks or cracks, which will lead to construction safety. However, at present, there is no good ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22
CPCG01L1/22
Inventor 柳民胡月明
Owner ZHEJIANG XINGTU BRIDGE SPECIAL EQUIP MFG
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