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Accuracy control method for bolted-type web member hole group of steel pipe arch

A technology of precision control and steel pipe arch, which is applied in the erection/assembly of bridges, bridges, buildings, etc., which can solve the problems of high cost and low precision, and achieve the effects of reducing construction difficulty, improving production efficiency, and ensuring accuracy

Active Publication Date: 2018-04-13
中铁宝桥(宝鸡)路桥建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To solve the above-mentioned technical problems of high cost and low precision, the present invention provides a method for controlling the precision of steel pipe arch bolted web hole group

Method used

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  • Accuracy control method for bolted-type web member hole group of steel pipe arch
  • Accuracy control method for bolted-type web member hole group of steel pipe arch
  • Accuracy control method for bolted-type web member hole group of steel pipe arch

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The method for controlling the accuracy of steel pipe arch bolted web hole group comprises the following steps:

[0027] see figure 1 , provide gusset plate 1, after gusset plate 1 blanking is completed and checked, use CNC drilling machine or radial drilling machine to drill hole groups according to the construction drawing of gusset plate 1, and draw the gusset plate based on the drilled hole group Install positioning line 2;

[0028] see figure 2 , according to the coordinates of the tire map, set out the installation positioning line 3 of the arch rib gusset plate, and make the arch rib pipe joint to lengthen the tire;

[0029] After the arch-rib pipe joint is connected to the ground tire, return the arch rib gusset plate installation positioning line 3 on the pipe joint according to the ground tire positioning point;

[0030] Please ref...

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Abstract

The invention discloses an accuracy control method for a bolted-type web member hole group of a steel pipe arch. The accuracy control method comprises the following steps that a joint plate is provided, after the joint plate is discharged and examined to be qualified, hole group drilling is conducted through a numerical control drilling machine or a radial drilling machine according to a joint plate construction drawing, and a mounting positioning line of the joint plate is marked on the basis of the drilled hole group. The accuracy control method for the bolted-type web member hole group of the steel pipe arch has the following beneficial effects that the manufacturing and mounting accuracy is improved, and the via-hole rate of high-strength bolts is ensured; and the accuracy of the mounting positions of the joint plate and a web member is ensured, the construction difficulty is reduced, the production efficiency is improved, and the economic benefit is improved.

Description

technical field [0001] The invention relates to the manufacture and installation of steel bridges, in particular to a method for controlling the precision of steel pipe arch bolted web bar hole groups. Background technique [0002] With the rapid development of China's economy and the improvement of steel production capacity, the country's infrastructure has entered a stage of vigorous development. The construction of steel structure bridges can be seen everywhere, and the construction is difficult. Arch Concrete arch bridges are the preferred structural form. [0003] With the continuous progress of building materials, construction technology, and design theory, the span of arch bridges has broken records time and time again, and the form of arch bridges has become increasingly novel. Taking the steel pipe arch of the Zangmu Super Bridge currently under construction as an example, the upper and lower arch ribs have been changed from the previous intersecting welding form t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 张健康刘召宁胡刚王忠波侯莉莉张秉钧
Owner 中铁宝桥(宝鸡)路桥建设有限公司