Cable force measuring method for suspender cable of suspension bridge

A measurement method and technology for slings, which are applied in the fields of instruments, calculations, electrical and digital data processing, etc., can solve problems such as the cable force of suspension bridges that have never been seen
CN104978464AActive Publication Date: 2015-10-14GUANGZHOU UNIVERSITY +1
4 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GUANGZHOU UNIVERSITY
Publication Date
2015-10-14

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a cable force measuring method for a suspender cable of a suspension bridge. The cable force measuring method sequentially comprises the following steps of: step I, measuring the shape of a main cable of the suspension bridge; step II, according to physical parameters of the main cable, computing to obtain dead load intensity q0 of the main cable; step II, determining horizontal force H0 of the main cable; and step IV, constructing a finite element program and identifying node load of a suspension point, thereby obtaining cable force of the suspender cable. The cable force measuring method has relatively high practicability and precision, can be used for simultaneously measuring the shape of the main cable and the cable force of the suspender cable, and is higher in efficiency in comparison with a normal frequency method.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the construction field, in particular to a method for measuring cable force of a suspension bridge. Background technique

[0002] The suspension cable is an important stress-bearing component of the suspension bridge. During the use of the suspension bridge, the cable force of the suspension cable is an important index to evaluate the health status of the suspension cable structure. The most commonly used method for measuring the force of slings is the frequency method, but the measurement efficiency of the frequency method is low, and other internal changes of the cable cannot be measured at the same time.

[0003] In related technologies, the form-finding problem of the main cable structure of the suspension bridge is the core problem in the static analysis of the suspension bridge. There are three relatively mature methods to solve this kind of problem: finite element method, dynamic relaxation method and force density metho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More