Progressive method for distinguishing slack supporting cable based on cable force monitoring during support settlement

A technique for supporting and slackening cables, used in the measurement of forces, measuring devices, testing of machine/structural components, etc.

Active Publication Date: 2010-08-04
江苏大公建设有限公司 +1
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AI Technical Summary

Problems solved by technology

[0003] Changes in the health state of the supporting cable system (such as relaxation, damage, etc.) will cause changes in the measurable parameters of the structure, such as changes in the supporting cable force. In fact, the change in the cable force includes the health of the cable system Information, that is to say, the health status of the structure can be judged by cable force data, which can be based on cable force monitoring (the present inve

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  • Progressive method for distinguishing slack supporting cable based on cable force monitoring during support settlement
  • Progressive method for distinguishing slack supporting cable based on cable force monitoring during support settlement
  • Progressive method for distinguishing slack supporting cable based on cable force monitoring during support settlement

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Embodiment Construction

[0138] For the health monitoring of the cable system of the cable structure when there is support settlement, the invention discloses a system and method capable of reasonably and effectively monitoring the health status of each cable of the cable system of the cable structure. The following descriptions of embodiments of the invention are merely exemplary in nature, and are in no way intended to limit the application or uses of the invention.

[0139] In the event of settlement of a cable structure support, the present invention employs an algorithm for monitoring the health of the cable system in the cable structure (including cable slack and damage). During specific implementation, the following steps are one of various steps that may be taken.

[0140]Step 1: Determine the type, location and quantity of the quantity to be monitored, and number them. The specific process is:

[0141] Assuming that there are N cables, first determine the numbering rules of the cables, and ...

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Abstract

The invention relates to a progressive method for distinguishing a slack supporting cable based on cable force monitoring during support settlement; when the method is used for distinguishing the slack supporting cable based on the cable force monitoring by the coordinates of the support of a monitoring structure, the method considers that the linear relationship between the current numerical value vector of the monitored quantity and the initial numerical value vector of the monitored quantity, the numerical value changing matrix of the virtual unit damage monitored quantity and the current nominal damage vector is approximated; in order to overcome the defect, the invention provides a method which piecewise approximates to the non-linear relationship by using the linear relationship and can distinguish the virtual damage cable; after the true damage cable is distinguished by using methods such as a nondestructive testing method and the like, the remaining virtual damage cable is the slack supporting cable; and the length of the cable needing to be regulated can be determined according to the relationship between the slack degree and the virtual damage degree.

Description

technical field [0001] When there is support settlement, the present invention identifies the cable system (referring to all supporting cables) in the cable support structure (especially large cable structure, such as large cable-stayed bridge, suspension bridge) that needs to be adjusted based on the monitoring of the cable force equivalent. The supporting cable of force is given, and the specific adjustment amount of cable length is given, which belongs to the field of engineering structure safety. Background technique [0002] The cable system is usually a key component of cable structures (especially large cable structures, such as large cable-stayed bridges and suspension bridges). Due to relaxation and other reasons, the cable force of the supporting cables usually changes after a period of time after the completion of the new structure, and the structure has been in service for a long time. Later, the relaxation of the supporting cables will also cause changes in the ...

Claims

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Application Information

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IPC IPC(8): G01M19/00G01N19/08G01L1/00G06F19/00G01M99/00
Inventor 韩玉林
Owner 江苏大公建设有限公司
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