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Suspension bridge splay saddle accurate positioning method based on APP system

A technology of precise positioning and loose cable saddle, which is applied in the field of measurement, can solve problems such as difficult angle control and low work efficiency, and achieve the effects of improving measurement efficiency, saving manpower and material resources, and reducing difficulty

Active Publication Date: 2021-03-19
THE 5TH ENG MBEC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, many people have conducted research on the positioning technology of scatter-cable saddles. However, because the design of scatter-cable saddle structures is mostly linear in space and angle control is difficult, the existing positioning technology has certain drawbacks and the work efficiency is extremely low.

Method used

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  • Suspension bridge splay saddle accurate positioning method based on APP system
  • Suspension bridge splay saddle accurate positioning method based on APP system
  • Suspension bridge splay saddle accurate positioning method based on APP system

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0034] see figure 1 , the present invention provides a method for precise positioning of loose cable saddles of suspension bridges based on the APP system, the specific steps are as follows:

[0035] A. Calculation of the coordinates of the design cross line of the bottom plate of the loose cable saddle:

[0036] Calculate the coordinates of the design cross line of the scatter saddle bottom plate 1 according to the coordinate forward calculation formula and the spatial position relationship of the scatter cable saddle bottom plate 1; use CAD to establish a scatter cable saddle 1:1 model, and pass the calculated coordinates through the spread point method Expand it to the CAD drawing, and check the coordinates of the design cross line of the loose cable saddle bottom plate 1;

[0037] B. Determination of the positioning...

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Abstract

The invention provides a splay saddle accurate positioning method based on an APP system. The method comprises the following steps of calculating the coordinates of a splay saddle bottom plate designcross curve through employing a coordinate positive algorithm and the spatial position relation of a splay saddle bottom plate; drawing a 1: 1 three-dimensional diagram of the splay saddle, and performing coordinate rechecking; an APP system being compiled, the system connecting the total station with the APP system through Bluetooth, measured data of the total station being transmitted to the APPsystem in real time, and adjustment parameters of the bottom plate and the saddle body of the splay saddle being automatically calculated; adjusting parameters of the splay saddle bottom plate beingcalculated according to the position relation from space points to lines, and the splay saddle bottom plate being adjusted through jacks at all parts. The method is advantaged in that the measured angle of the axis of the saddle body is reflected through a dihedral angle between a measured plane and a designed plane of the splay saddle body, and the angle of the axis of the saddle body is adjustedthrough a lifting appliance on a splay saddle gantry.

Description

technical field [0001] The invention relates to the field of measurement, in particular to an APP system-based precise positioning method for a loose cable saddle of a suspension bridge, especially suitable for precise positioning of a loose cable saddle for a suspension bridge with complex spatial structure design. Background technique [0002] Since the beginning of the 21st century, my country's bridge construction industry has developed rapidly. Suspension bridges have become the main form of long-span bridges because of their advantages such as flexibility, beauty, and suitability for strong winds and earthquake areas. The loose cable saddle of the suspension bridge supports and fixes the main cable, and its design, construction quality, and positioning accuracy control are crucial. In recent years, many researchers have studied the positioning technology of scatter-cable saddles. However, because the design of scatter-cable saddle structures is mostly linear in space a...

Claims

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Application Information

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IPC IPC(8): G01C15/00G06F30/13
CPCG01C15/00G06F30/13
Inventor 赵伟雷楗柏晶晶陈健王佳朱建阳郭波常建增张露叶绍其李华孙光沈查
Owner THE 5TH ENG MBEC
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