Stay cable intelligent monitoring method and system based on front-end processing
An intelligent and monitoring system technology for cable-stayed cables, which is applied in cable-stayed bridges, testing of machinery/structural components, and tension measurement. The effect of real-time monitoring of abnormal vibration
Inactive Publication Date: 2020-09-08
CHINA RAILWAY BRIDGE SCI RES INST LTD +3
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Problems solved by technology
The implementation method and data transmission method of the above scheme make the health monitoring system only selectively monitor some stay cables (the ratio is generally lower than 25%), and it is difficult to achieve full bridge coverage, but all stay cables of the whole bridge are collected The probability of injury is about the same
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[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0035] see figure 1 As shown, the embodiment of the present invention provides a front-end processing-based intelligent monitoring method for stay cables, which specifically includes the following steps:
[0036] S1. Integrate the acce...
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The invention discloses a stay cable intelligent monitoring method and system based on front-end processing and relates to the technical field of bridge monitoring. The method is characterized in thata traditional implementation mode is changed, a part of data preprocessing function of a traditional background analysis system is preposed in front-end detection equipment, vibration signal acquisition is integrated, data needing to be transmitted is the preprocessed effective data, and the data volume is greatly reduced, so wireless transmission of monitoring data of all inhaul cables of the whole bridge becomes possible, meanwhile, the massive original information is prevented from being stored in a bridge health monitoring system, and real-time monitoring on the aspects of cable force, vibration signal features, abnormal vibration and the like of the inhaul cables of the whole bridge is achieved.
Description
technical field [0001] The invention relates to the technical field of bridge monitoring, in particular to an intelligent monitoring method and system for cable stays based on front-end processing. Background technique [0002] Long-span cable-stayed bridges, as the control engineering of my country's transportation hubs, are all century-old bridges, which put forward higher requirements in terms of daily operation and maintenance. As the main force-bearing component of the cable-stayed bridge structure, the cable-stayed cables are the focus of the daily management and health monitoring system, and the cable-stayed cables need to pay attention to the cable force, vibration and abnormal impact, because the cable force Abnormalities may indicate problems with the structure of the stay cables or even the entire bridge. The vibration of the stay cables will cause fatigue damage to the stay cables themselves and the anchorage structure of the bridge. Problems such as scratching b...
Claims
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Login to View More IPC IPC(8): G01M99/00G01L5/04G01H11/06E01D11/04E01D19/16
CPCE01D11/04E01D19/16G01H11/06G01L5/042G01M99/004
Inventor 钟继卫汪正兴胡逸凡李东超柴小鹏赵智达盛能军李荣庆王泽豪尹琪赵海威
Owner CHINA RAILWAY BRIDGE SCI RES INST LTD