A Reverse Analysis Method of Construction Error of Round Steel Pipe

Abstract

The embodiment of the present invention discloses a reverse analysis method for the construction error of round steel pipes, which includes: taking two points at the construction site to measure at the peripheral visible positions near both ends of each round steel pipe, and recording the actual coordinate values ​​and feeding them back to the design; Each point is the origin, and the plane parallel to the centerline of the round steel pipe is established as the Z direction, and a circle with a radius equal to the radius of the round steel pipe is established on the plane; the two circles at the same end are projected onto the plane established by the point closer to the end point, Then there are two intersection points between the two projected circles, and the point closest to the original center line is taken; the intersection points connecting the two ends are obtained and extended to obtain the center line position of the simulated actual round steel pipe, and the round steel pipe is established based on the simulated center line; comparison Theoretical and simulated actual round steel pipe position, analysis error. The reverse analysis method of the round steel pipe construction error of the present invention only needs 4 random points to simulate a steel keel, solves the problem of measurement blind spots, reduces the workload of surveyors, and improves work efficiency.

Description

technical field [0001] The invention relates to an installation error analysis method of a curtain wall round steel pipe, in particular to a reverse analysis method for the construction error of a round steel pipe. Background technique [0002] In the process of curtain wall construction, especially for curtain walls with various curved shapes, after the optimization of the skin of the curtain wall and the modeling of the scheme are completed in the early stage, it enters the most complicated construction stage of the steel structure of the curtain wall. The radial direction and the circumferential direction of are determined, and they are all round steel pipes. The radial pipe cuts the intersecting line at the position where it intersects with the circumferential pipe. During the construction process, due to the inability to accurately find the positioning point, the construction error cannot be estimated. Analyzing the positioning method of the steel structure constructio...

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Problems solved by technology

[0004] The technical problem to be solved by the embodiments of the present invention is that there are many blind spots in the total station during on-site steel keel construction. If the measurement point and theoretical coordinate value are provided by design, then the real coordinate of the point is checked by the conventional method. , the measurement point in the corresponding model cannot be accurately found on site, and it is likely to be blocked. A reverse analysis method for the construction error of the circular steel pipe is proposed

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