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Temperature monitoring system of concrete-filled steel tube arch bridge

A technology of concrete filled steel tube and monitoring system, applied in arch bridges, bridges, bridge forms, etc., can solve problems such as difficulty in detecting internal temperature, and achieve the effects of accurate monitoring of internal temperature of arch bridges, convenient and simple use, and increased strength

Active Publication Date: 2019-01-04
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention intends to provide a temperature monitoring system for concrete filled steel pipe arch bridges to solve the problem that it is difficult to detect the internal temperature of the arch bridge after concrete pouring

Method used

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  • Temperature monitoring system of concrete-filled steel tube arch bridge
  • Temperature monitoring system of concrete-filled steel tube arch bridge
  • Temperature monitoring system of concrete-filled steel tube arch bridge

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The temperature monitoring system of concrete filled steel tube arch bridge, such as figure 1 , figure 2 with image 3 Shown: including the front-end acquisition subsystem and the back-end monitoring subsystem, the front-end acquisition subsystem and the back-end monitoring subsystem communicate wirelessly, the temperature monitoring system also includes a heating box 1 located outside the arch bridge, the front-end acquisition subsystem includes the first metal Line 15, second metal wire 14, voltage measurement module 4, temperature measurement module 8, communication module and control module, voltage measurement module 4 can use existing millivolt meter, temperature measurement module 8 can use existing temperature sensing chip, communication The module can use the existing 3G communication chip, the control module can use the existing C8051F040 microcontroller, the back-end monitoring subsystem includes the receiving module, processing module, label module and dat...

Embodiment 2

[0042] The difference with Embodiment 1 is that, if Figure 4 Shown, in concrete 13 embed temperature sensing tube 18, temperature sensing tube 18 is steel and diameter is 3cm, and length is 10cm, and the size of steel temperature sensing tube 18 is less, and temperature sensing tube 18 can not be to concrete simultaneously. 13 produces adverse effects, the temperature sensing cylinder 18 is airtightly equipped with a piston plate 16, and the piston plate 16 separates the temperature sensing cylinder 18 into an induction chamber 17 and a compression chamber 23, the induction chamber 17 is filled with compressed air, and the compression chamber 23 Air-tight connection of the inner wall of the steel air duct 19, the diameter of the air duct 19 is 0.5cm, to avoid the diameter of the air duct 19 is too large and affect the characteristics of the concrete 13, the air duct 19 extends out of the end of the concrete 13 to air The airbag 20 is connected tightly, and the compression cha...

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Abstract

The invention relates to the temperature monitoring system of a concrete-filled steel tube arch bridge. The system comprises a front end acquisition subsystem, a rear end monitoring subsystem and a heating box located on the external portion of the arch bridge. The front end acquisition subsystem and the rear end monitoring subsystem carry out wireless communication. The front end acquisition subsystem comprises a first metal line, a second metal line, a voltage measurement module, a temperature measurement module, a communication module and a control module. The rear end monitoring subsystemcomprises a receiving module and a processing module. The two ends of the first metal line and the second metal line are twisted into a heat joint and a cold joint respectively. The heat joint is located in concrete. The heat joint is located in the heating box of the external portion of the arch bridge. The temperature measurement module is located in the heating box. The first metal line is electrically connected to the voltage measurement module. The output end of the voltage measurement module is electrically connected to the control module. The temperature measurement module is electrically connected to the control module. The control module is electrically connected to the communication module. The receiving module is electrically connected to the processing module. The internal temperature of the concrete is monitored and the internal temperature of the arch bridge is monitored accurately.

Description

technical field [0001] The invention relates to the technical field of bridge building monitoring, in particular to a temperature monitoring system for a steel tube concrete arch bridge. Background technique [0002] Concrete filled steel pipe is to pour concrete into the steel pipe and tamp it to increase the strength and rigidity of the steel pipe. The concrete filled steel pipe technology solves two major problems in the application and construction of high-strength materials for arch bridges. When the arch bridge is exposed to wind, sun and rain, the concrete inside the arch bridge will crack due to temperature stress. If the crack is not known in time, it will easily lead to serious cracking accidents of the arch bridge. Temperature stress is the stress caused by the object's inability to expand and contract freely due to temperature rise and fall, or the temperature of each part of the object is different. In the process of concrete construction, the temperature stres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00E01D4/00
CPCE01D4/00G01M5/0008
Inventor 周建庭周倩吴月星张洪张兰辛景舟刘增武陈静雯张嘉诚李晓庆
Owner CHONGQING JIAOTONG UNIVERSITY
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