Launching beam monitoring control construction method

A construction method and monitoring and control technology, applied in bridges, measuring devices, bridge construction, etc., can solve the problems of limited control range, cracking of the beam body, inaccuracy and precision, etc., and achieve the effect of improving work efficiency

Inactive Publication Date: 2020-10-13
CHINA RAILWAY 23RD BUREAU GROUP 2TH ENG
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Problems solved by technology

[0003] The purpose of the present invention is to: in view of the prior art, when prefabricated and pushed, the beam body often cracks due to the excessive internal stress of the beam body when th

Method used

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  • Launching beam monitoring control construction method
  • Launching beam monitoring control construction method

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Embodiment 1

[0031] Such as Figure 1-Figure 2 As shown, a construction method for monitoring and controlling a push beam comprises the following steps:

[0032] Step 1: Use the beam grid method to perform simulation calculations to establish a spatial calculation model, simulate the entire process from the start of pushing to the completion of the bridge, and determine the position where the concrete stress gauge sensor 2 needs to be embedded in the pushing beam 1; in this embodiment, including A plurality of sections selected at intervals in the length direction of the push beam 1, and 6 concrete stress gauge sensors 2 are arranged on each section;

[0033] Step 2: Embedding a concrete stress gauge sensor 2 inside the beam body of the push beam 1, connecting the concrete stress gauge sensor 2 with one end of the first cable, and extending the other end of the first cable out of the template; The concrete stress gauge sensor 2 includes a back plate, an induction plate, a vibrating wire, ...

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Abstract

The invention relates to the technical field of bridge incremental launching construction, and especially relates to a launching beam monitoring control construction method. The method comprises the following steps: 1, determining the position where a concrete stressometer sensor is buried; 2, embedding a concrete stressometer sensor in a beam body of the launching beam, connecting the concrete stressometer sensor with one end of a first cable, and enabling the other end of the first cable to extend out of a template; 3, pouring concrete into the template to form the launching beam; 4, connecting the first cable with an acquisition device; 5, mounting a sticking type stressometer sensor on the outer surface of the launching beam and connecting the sticking type stressometer sensor with theacquisition device; and 6, connecting the acquisition device with a reading device, and monitoring the acquired data in real time. Due to the fact that the concrete stressometer sensor and the sticking type stressometer sensor are installed, the stress values of the inner surface and the outer surface of the launching beam are monitored in real time, the launching beam is prevented from crackingin the prefabricating and launching process, and the construction quality and safety are guaranteed.

Description

technical field [0001] The invention relates to the technical field of bridge jacking construction, in particular to a construction method for monitoring and controlling a jacking beam. Background technique [0002] In the concrete beam jacking construction, the beam body often cracks due to the excessive internal stress of the beam body during prefabrication and jacking. The traditional control method is based on the specifications and the experience of technicians and construction personnel. , but the range of man-made control is limited, not precise and fine enough, which will affect the structure of the push beam and cause inconvenience to the construction. Contents of the invention [0003] The purpose of the present invention is to: in view of the prior art, when prefabricated and pushed, the beam body often cracks due to the excessive internal stress of the beam body when the push beam is prefabricated and pushed. To solve the problem of limited scope, insufficient...

Claims

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Application Information

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IPC IPC(8): G01L1/10G01D21/02E01D21/00E01D21/06
CPCE01D21/00E01D21/06G01D21/02G01L1/10
Inventor 张时钟邢云州战鼎成赵月亭佟强庞金波王利民李胜臣
Owner CHINA RAILWAY 23RD BUREAU GROUP 2TH ENG
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