A Method for Boom Length Calculation and Collision Check

Abstract

The invention discloses a method for length calculation and collision check of a boom. Before determining the length of an arch rib boom, the relevant calculation parameters and the calculation of thecoordinate transformation of the three-dimensional space are determined, on-site measurement control points are determined, software programming is performed, the length calculation and the collisioncheck of a single boom are performed, data measurement of a next boom is performed, and boom length calculation statistics or pre-embedded sleeve correction are performed. The method for the length calculation and the collision check of the boom adopts computer program writing software to perform coordinate system conversion, compared with CAD and BIM technology, the operation is simple, the calculation speed is high, the results are reliable, and the cost is saved. In the specific construction process, the calculated length of the boom is quickly obtained according to the scene situation andwhether the upper and lower pre-embedded sleeve space of a site can meet the installation of the boom or not is judged, the installation conditions of the boom is predicted before the boom is subjected to feeding, it is ensured that the boom does not collide with the pre-embedded sleeve, the calculation efficiency of the boom length is greatly improved, and the phenomenon of collision or frictionwith the pre-embedded sleeve after the boom is stretched is avoided.

Description

technical field [0001] The invention belongs to the technical field of basket arch bridge construction, and in particular relates to a method for calculating the length of a suspender and checking for collision. Background technique [0002] Suspenders are the main stress-bearing components of basket arch bridges. At present, the methods commonly used to determine the length of suspenders are mainly rope measurement and CAD drawing tools. The principle of rope measurement is simple but the error is large; CAD drawing tools determine the length of suspenders. The method has high precision but heavy workload and low efficiency. At the same time, with the construction of the arch rib steel pipe and the tie beam, the position of the embedded sleeve of the suspender will be displaced, and the error in the installation and construction process will be accumulated, which may lead to the occurrence of the upper and lower embedded sleeves when the suspender is formed. Collision phen...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome technical defects such as large workload and low efficiency in measuring the length of the boom of the basket arch bridge in the prior art, and collisions are likely to occur during the specific construction process, the present invention provides a method for calculating the length of the boom and checking the collision. Before the construction of the boom, the software for analyzing the data of the total station should be written in advance, the installation position of the boom should be checked and whether there will be collision between the boom and the embedded sleeve, and the installation situation should be predicted in advance to ensure that it does not interfere with the embedded sleeve. The collision of the sleeve greatly improves the calculation efficiency of the boom length and solves the above technical problems

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