Method and device for quickly identifying state of main cables of suspension bridge
An identification method and state identification technology, applied in special data processing applications, tension measurement, instruments, etc., can solve the problems of cumbersome calculation of identification methods, identification of main cables of suspension bridges, low accuracy, etc., and achieve a wide range of applications, Wide range of applications and reliable performance
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Embodiment 1
[0041] A method for quickly identifying the state of a main cable of a suspension bridge, comprising the following steps:
[0042] First, after starting the monitoring computer, start monitoring the alignment of the main cable and the bridge deck, and determine the displacement v of the upper and lower ends of each sling i , Simultaneously measure the tension N of each sling i , according to the formula (1) to calculate the vertical restraint stiffness k of a single sling to the main cable i , according to the formula (2) to calculate the vertical restraint stiffness k of the sling to the main cable per unit length
[0043] k i = N i | v i - v i ′ | - - - ( 1 ) ...
Embodiment 2
[0055] Such as image 3 , 4 shown.
[0056] A device for quickly identifying the state of the main cable of a suspension bridge, which is mainly composed of a data acquisition unit 1 and a data analysis unit 10, the data acquisition unit 1 is connected to the data analysis unit 10 through a wireless WLAN network or a USB device 5, and the data acquisition unit 1 It is mainly composed of a three-way acceleration sensor 2, a multi-channel anti-aliasing filter amplifier 3, an A / D conversion module 4, and a wireless WLAN network or a USB device 5. The data analysis unit 10 is mainly composed of a data receiving module 6, a power spectrum and a correlation The analysis module 7, the cable force calculation module 8 and the result display and storage module 9 are composed, the output of the three-way acceleration sensor 2 is connected to the input terminal of the multi-channel anti-aliasing filter amplifier 3, and the output terminal of the multi-channel anti-aliasing filter amplif...
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