Large building structure deformation monitoring system and method

Abstract

The invention relates to a large building structure deformation monitoring system and method. The system comprises a signal detection device, a line concentration box and a main cabinet. The signal detection device comprises a temperature signal detection unit, a strain signal detection unit, a prestress signal detection unit and a geometric deformation signal detection unit; the signal detection device is used for performing signal detection on the large-scale structure and outputting various original signals; the line concentration box receives the temperature signal, the strain signal, the prestress signal and the geometric deformation signal and transmits the received signals to the main cabinet; the main cabinet is connected with the line concentration box, collects, analyzes and processes original signals transmitted by the line concentration box, and outputs monitoring information. The system automatically measures and reads the structural deformation data of the large structure, replaces a traditional manual running point measuring and reading mode, saves time and labor, guarantees data continuity, real-time performance and data volume, and is high in efficiency, safe, reliable and accurate in measurement.

Description

technical field [0001] The invention relates to the technical field of measurement and signal processing, more specifically, to a system and method for monitoring structural deformation of large structures. Background technique [0002] Nuclear power plant containment, hydropower dams, high-speed rail bridges, buildings and other large structures usually undertake extremely important and critical safety and system functions, and their structural deformation and stress monitoring are important means to judge the health status of large structures. Monitoring indicators usually include: concrete temperature (measured by thermocouple), concrete strain (measured by vibrating wire strain gauge), overall geometric deformation (measured by vertical coordinate instrument), prestress (measured by prestressed steel beam), etc. [0003] Conventional large-scale structure monitoring methods are distributed measurement of isolated sensors, relying on manual running point readings. The st...

AI Technical Summary

Problems solved by technology

[0005] 1. Completely rely on manual running point measurement and reading, which is time-consuming and laborious, and it is easy to introduce human error;

[0006] 2. Data continuity, real-time and data volume cannot be guaranteed, data records rely on manual records, and trend analysis cannot be performed;

[0007] 3. It is necessary to temporarily connect secondary instruments and auxiliary tools, the work process is complicated and cumbersome, and the efficiency is low;

[0008] 4. Personnel frequently enter and exit various high-risk areas (such as high altitudes, corridors, and radiation control areas of nuclear power plants), with high safety risks;

[0009] 5. The working environment of personnel and equipment is harsh, and frequent plugging and unplugging of the signal physical interface will easily lead to aging of the signal interface and inaccurate measurement

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