Positioning and measuring method of y-shaped steel structure column in open excavation station of subway

A technology of positioning measurement and structural columns, applied in underwater structures, foundation structure engineering, foundation structure tests, etc., can solve problems such as structural failure, achieve easy operation, reduce time for measurement construction and deviation rework, and ensure construction quality effect

Active Publication Date: 2021-07-30
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP OF THE FIFTH ENG +2
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Y-shaped steel structure column can provide a larger space and reduce the number of column structures used, but at the same time, once the Y-shaped steel structure column structure is unstable and damaged, it will cause the overall failure of the structure

Method used

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  • Positioning and measuring method of y-shaped steel structure column in open excavation station of subway
  • Positioning and measuring method of y-shaped steel structure column in open excavation station of subway

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0035] like figure 1 , 2 As shown, the method for positioning and measuring the Y-shaped steel structure column of the open-cut subway station includes the following steps:

[0036] S1) Base positioning measurement: measure and set the center point of the steel pipe column 1, measure four cross direction control points from the center point, and perform base positioning measurement;

[0037] S11) Uniformly number each steel pipe column 1 according to the design drawings, and calculate the center coordinates of each steel pipe column 1 one by one;

[0038] S12) Use the total station to measure the center point of each steel pipe column 1 using the polar coordinate method, and lead the positioning axis of the steel pipe column 1 to the surface steel bar at the level of the steel pipe column 1 foot;

[0039...

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Abstract

The invention discloses a method for positioning and measuring a Y-shaped steel structure column in a subway open excavation station, including S1) base positioning measurement: measuring and setting the center point of a steel pipe column, and measuring four cross direction control points from the center point to perform base positioning measurement; S2 ) Steel pipe column positioning measurement: During the hoisting process of the steel pipe column, the axis of the steel pipe column is aligned with the cross axis of the base, then falls, and is temporarily fixed after falling. At the same time, use the top pull rod to adjust the verticality of the steel pipe column; S3) Y-shaped column positioning measurement: During the hoisting process of the Y-shaped column, the column axis of the Y-shaped column is aligned with the column axis of the steel pipe column, and then the total station is used to The bifurcated part of the Y-shaped column above the foundation pit is checked by the method of axial vision. In the present invention, the location measurement and correction of the Y-shaped steel structure column are performed multiple times in sections, which can effectively ensure the installation and positioning accuracy and construction quality of the Y-shaped steel structure column.

Description

technical field [0001] The invention relates to the technical field of steel structure column positioning and measurement, in particular to a method for positioning and measuring a Y-shaped steel structure column of a subway open excavation station. Background technique [0002] With the acceleration of urbanization in our country and the rapid development of rail transit, steel structures have been gradually used in urban subway projects due to their advantages such as large spans, space saving, and beautiful appearance. The Y-shaped steel structure column is a simple tree-like structure in the plane, which forms a large structural support space through the bifurcation of the trunk. At present, in China, Y-shaped steel structure columns are mostly used as the support system of airport terminal buildings and the load-bearing structure of subway booths. The Y-shaped steel structure column can provide a larger space and reduce the number of column structures used, but at the ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): E02D33/00E02D29/045
CPCE02D29/04E02D33/00
Inventor何十美周文卫守峰马天昌饶胜斌苏春生徐少平郭建强赵何明汤振亚梁朋刚刘宏宇
OwnerCHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP OF THE FIFTH ENG