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Analyzing and monitoring system for dynamic state abnormity of dragging construction of steel truss girder bridge

A monitoring system and dynamic state technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve problems such as difficult to meet the needs of high-efficiency and high-stability bridge construction, and achieve the effect of avoiding subsequent safety hazards

Inactive Publication Date: 2021-07-16
SHANDONG TIEZHENG PROJECT EXPERIMENT & INSPECTION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under complex conditions, it is difficult for a single traction system to meet the needs of efficient and stable bridge construction.

Method used

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  • Analyzing and monitoring system for dynamic state abnormity of dragging construction of steel truss girder bridge
  • Analyzing and monitoring system for dynamic state abnormity of dragging construction of steel truss girder bridge
  • Analyzing and monitoring system for dynamic state abnormity of dragging construction of steel truss girder bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The monitoring system includes a deflection monitoring subsystem, a stress monitoring subsystem, a temperature monitoring subsystem and a synchronization monitoring subsystem. The monitoring system also includes a main processing control subsystem for collecting and analyzing monitoring data information of the above-mentioned subsystems.

[0035] Preset in the monitoring system:

[0036] ①Temporary pier at temperature T X , the function curve of the standard stress along with the position change is f L (x); ②Steel truss girder at temperature T X , the function curve of the standard stress along with the position change is f G1 (x), the function curve of its standard deflection with position change is f G2 (x); ③ guide beam at temperature T X , the function curve of the standard stress along with the position change is f D1 (x), the function curve of its standard deflection with position change is f D2 (x); ④ slider at temperature T X , the function curve of the s...

Embodiment 2

[0041] The synchronization monitoring subsystem is connected with multiple position monitoring devices for data information, and the synchronization monitoring subsystem collects and analyzes the position information of temporary piers, steel truss girders, guide beams and sliders during the steel beam dragging into place process.

[0042] The temporary piers, steel truss girders, guide beams and sliders in the process of being dragged into place are all equipped with independent position monitoring devices, and the position information of the temporary piers monitored by the position monitoring device in real time is S L , the position information of the steel truss girder is S G , the position information of the guide beam is S D , the slider position information is S H .

[0043] The main processing control subsystem finds the position point monitored by the position monitoring device on the function curve of the standard stress or standard deflection of each structure, a...

Embodiment 3

[0051] The deflection monitoring subsystem is connected with multiple disturbance monitoring devices for data information, and the deflection monitoring subsystem collects and analyzes the deflection information of the guide beam and steel truss girder during the process of dragging the steel girder into place.

[0052] The stress monitoring subsystem is connected with multiple stress monitoring devices for data information, and the stress monitoring subsystem collects and analyzes the stress information of temporary piers, steel truss beams, guide beams and sliders in each state and position during the dragging process.

[0053] The main processing control subsystem obtains the actual stress or actual deflection of the real-time position of each structure:

[0054] ①Temporary pier position S L The actual monitored stress information is F LS ;

[0055] ②Steel truss position S G The actual monitored stress information is F GS , steel truss position S G The deflection infor...

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Abstract

The invention discloses an analyzing and monitoring system for dynamic state abnormity of dragging construction of a steel truss girder bridge, and relates to the technical field of bridge construction monitoring. According to the invention, a main processing controller obtains temperature information, and matches and outputs standard deflection parameter information and standard stress parameter information which are preset in a monitoring system and correspond to positions on each structural body under the temperature condition. The main processing control subsystem obtains the deflection data information and the stress information, compares the deflection data information and the stress information with the standard deflection parameter information and the standard stress parameter information corresponding to the current temperature and the current position of each structural body, performs analyzing, and outputs an analysis result. Synchronous matching monitoring of deflection, stress, temperature and position is carried out on real-time state information of the temporary pier, the steel truss girder, the guide beam and the sliding block, the stress or deflection state is detected synchronously, the abnormal state is analyzed and processed, the real-time abnormal danger level in the whole construction process is analyzed and output, construction control is facilitated, and potential safety hazards are avoided.

Description

technical field [0001] The invention belongs to the technical field of bridge construction monitoring, in particular to a system for analyzing and monitoring abnormalities in the dynamic state of dragging construction of steel truss girder bridges. Background technique [0002] In the process of bridge construction, dragging construction is more common, that is, slideway beams are set on the assembly platform, temporary piers, and lower beams of the main pier, and the steel beams slide on the slideway beams through the traction of continuous jacks in front by steel strands. However, under complex conditions, it is difficult for a single dragging system to meet the needs of efficient and stable bridge construction. During the dynamic dragging construction of bridges, the stability of various dynamic structures such as temporary piers, steel truss girders, and guide beams is an important factor affecting the safety and stability of the entire dragging construction. In the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G06F17/15E01D21/00E01D19/00
CPCG01D21/02E01D21/00E01D19/00G06F17/15
Inventor 刘国飞孟令强付廷波马亮闫明邱锡荣颜廷虎付睿郑灿伟吴建新栾心国艾现平郭传臣杨浩亮闫占瑞
Owner SHANDONG TIEZHENG PROJECT EXPERIMENT & INSPECTION CENT
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