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Torque monitoring method in bridge cantilever method symmetrical construction

A cantilever method, a technology in construction, applied to force/torque/work measuring instruments, measuring devices, force sensors related to bearings, etc., can solve bridge torque monitoring and other problems, and achieve the effect of easy operation and simple experimental installation

Active Publication Date: 2017-09-08
中电建路桥集团有限公司 +1
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  • Abstract
  • Description
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Problems solved by technology

[0003] At present, in the field of mechanical engineering, there is a method for monitoring torsion through displacement monitoring, but in this field, there is no method for monitoring the torque of bridges. Torque monitoring method

Method used

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  • Torque monitoring method in bridge cantilever method symmetrical construction
  • Torque monitoring method in bridge cantilever method symmetrical construction
  • Torque monitoring method in bridge cantilever method symmetrical construction

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Embodiment Construction

[0020] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0021] The invention aims at the shortage of torque monitoring in the existing cantilever method construction process, and provides a torque monitoring method in the bridge cantilever method symmetrical construction.

[0022] The method steps are as follows:

[0023] S1: Install a strain gauge on the temporary consolidation column to measure the axial strain of the temporary consolidation column, and the strain gauges are symmetrically arranged with the centerline of the transverse bridge direction as the symmetry line, and measure the initial strain when the strain gauge is installed;

[0024] S2: Measure the strain of each temporary consolidation column during the construction process;

[0025] S3: Calculate the bridge torque according to the differen...

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Abstract

The present invention provides a torque monitoring method in bridge cantilever method symmetrical construction, belonging to the bridge construction technology field. The method is provided with a strain gauge on a temporary consolidation column pier to obtain load strains on the temporary consolidation columns and calculate the torque in the cantilever method construction according to the strain difference and distance between temporary consolidation columns. The torque monitoring method in the bridge cantilever method symmetrical construction solves the problem of torque measurement in the cantilever method bridge construction process so as to provide reference for the eccentric loading control in the bridge construction process.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a torque monitoring method in the symmetrical construction of bridge cantilever method. Background technique [0002] Under the action of eccentric load, the box girder can be equivalent to the joint action of local load, symmetrical load and antisymmetrical load. Torsion and distortion effects are produced under antisymmetric loading. Guo Jinqiong, Fang Zhenzheng, and Zheng Zhen pointed out in the book "Design Theory of Box Beams" that for concrete box girders, the longitudinal warpage normal stress caused by rigid torsion and section distortion can reach the longitudinal warpage caused by the joint action of live load and dead load. 24% to 26% of the bending normal stress. Therefore, the effect of torsion on the box girder cannot be ignored. [0003] At present, in the field of mechanical engineering, there is a method for monitoring torsion through displacement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
CPCG01L5/0042
Inventor 陈钒陈正林潘旦光程业
Owner 中电建路桥集团有限公司
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