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A method for stress monitoring of special-shaped steel structures

A stress monitoring and steel structure technology, applied in the direction of measuring force, measuring devices, instruments, etc., can solve the problems of difficult monitoring of steel structures, inability to set temperature compensation blocks, inaccuracy, etc., and achieve easy removal, elimination of data deviation, and fixed structure. solid effect

Active Publication Date: 2018-09-18
中建桥梁有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of building structure cannot set the temperature compensation block for temperature compensation according to the traditional temperature compensation method
This leads to difficulties and inaccuracies in the monitoring of steel structures

Method used

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  • A method for stress monitoring of special-shaped steel structures
  • A method for stress monitoring of special-shaped steel structures
  • A method for stress monitoring of special-shaped steel structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Coarsely grind and finely grind the monitored structure 1 according to the standard of laying out the strain gauge 6 at the monitoring point, and wipe the surface of the monitored structure with alcohol cotton to form a smooth surface B;

[0035] (2) At least two monitoring measuring point strain gauges 6 are arranged at parallel intervals on the smooth surface B, and the monitoring measuring point strain gauges 6 are covered with protective glue 5 to protect the monitoring measuring point strain gauges 6. After the protective glue 5 is hardened, the arrangement of the strain gauge 6 at the monitoring point is completed;

[0036] (3) Weld the two ends of the steel strip 3 of the prefabricated steel structure monitoring temperature compensation block structure on the smooth surface B of the monitored structure 1, so that the temperature compensation measuring point strain gauge 4 set on the steel block 2 is in line with the monitoring measuring point The point strain...

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Abstract

The invention discloses a temperature compensating block structure for monitoring a special-shaped steel structure, and a stress monitoring method. The stress monitoring method comprises the following steps of (1) performing coarse grinding and fine grinding on a monitored structure, and wiping the surface of the monitored structure by an alcohol cotton ball for forming a smooth surface; (2) arranging at least two monitoring point strain gauges in a parallel and separated manner on the smooth surface; (3) welding two end points of a prefabricated steel band of a steel structure monitoring temperature compensating block structure on the smooth surface of the monitored structure so that temperature compensating measuring point strain gauges arranged on a steel block and the monitoring point strain gauges are arranged in one-to-one correspondence, and furthermore the protective glue of each temperature compensating measuring point strain gauge contacts with but does not squeeze the protective glue of the monitoring point strain gauge; and (4) respectively reading data which are acquired from the temperature compensating measuring point strain gauge and the monitoring point strain gauge, and obtaining a temperature stress through calculation. The stress monitoring method can be used for eliminating temperature stress affecting factors in steel structure monitoring data so that higher accuracy of the monitoring data is realized.

Description

technical field [0001] The invention relates to the field of steel structure monitoring, in particular to a temperature compensation block structure for monitoring special-shaped steel structures and a monitoring method thereof. Background technique [0002] Due to the characteristics of the steel structure itself, its structural stress is greatly affected by temperature. Therefore, it is necessary to distinguish and remove the influence of temperature stress in the process of steel structure construction monitoring. At present, the method of temperature compensation is generally used to remove the influence of temperature stress, that is, the temperature compensation block must first be set for monitoring. At present, there are no clear technical standards and regulations for the setting of the temperature compensation block in the field of steel structure monitoring, which leads to the setting of the temperature compensation block is very random. This leads to inaccurate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/00
Inventor 周俊龙余流高璞刘晓敏李飞石丰祥王安鑫
Owner 中建桥梁有限公司
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