Prefabricated linear control method matched with prefabricated bridge deck slab and storage medium

Abstract

The invention relates to a prefabricated linear control method matched with a prefabricated bridge deck slab and a storage medium. The control method comprises the following steps of S1, measuring the actual length; S2, judging and correcting the rationality of measured data; S3, calculating coordinates of a positioning point under the prefabricated coordinate system; S4, converting the coordinates into a geodetic coordinate system; S5, calculating a prefabricated instruction; and S6, judging and correcting the reasonability of the prefabricated instruction. Based on the short-line method prefabrication matching principle, corresponding judgment and correction modes are considered when measured data are unreasonable and deviation between a prefabrication instruction and a theoretical state is too large, the reliability of short-line method prefabrication bridge deck segment linear control is effectively improved, and the method can be used for guiding actual engineering of bridge deck matching prefabrication.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a prefabricated alignment control method and a storage medium for matching a prefabricated bridge deck. Background technique [0002] Prefabrication and assembly technology is one of the important directions for the development of bridge engineering in my country. The method of bridge segment prefabrication can be divided into long-line method and short-line method. Compared with the long-line method, the short-line method has strong adaptability and a small footprint, which is conducive to industrialized construction, but it has stricter requirements on the prefabrication process and quality, especially the control of the prefabrication line shape, which directly affects the bridge line shape. At present, my country has accumulated some practical experience in the prefabricated alignment control method of short-line method segmental prefabricated box girders, but in the constr...

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Problems solved by technology

[0004] In the above-mentioned patents, the short-line method prefabrication of segmental prefabricated box girders is the object, and the linear control method is proposed, but for the short-line method matching prefabrication of the bridge deck, the applicability of the above method is not good, and the data measurement and error correction are limited. The method is relatively complicated, and it is difficult to guide the engineering practice of short-line prefabrication of bridge decks

In addition, in the above-mentioned patents, the data to be measured for the prefabricated sections are all three-dimensional coordinate data, which require a precision total station for measurement. At the same time, the prefabricated site needs to build a measuring tower, which needs to meet the requirements of high precision, small deformation, and no obvious settlement, etc. Requirements, and regular calibration and maintenance should be carried out, the construction cost is high, and the requirements for the site are high

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