Linear measurement control method for multi-curved-surface distorted steel tower

Abstract

The invention discloses a linear measurement control method for a multi-curved-surface distorted steel tower. The method comprises the following steps of (1) drawing a steel tower three-dimensional model to obtain a design steel tower 1:1 model; (2) selecting representative characteristic point three-dimensional data as a measurement control point on the model according to structural characteristics of steel tower sections; (3) establishing a construction measurement control net at a steel tower section or steel tower pre-assembly manufacturing site; (4) measuring the steel tower sections, fitting measurement data and three-dimensional model data of the steel tower sections, obtaining a deviation, and according to the deviation, adjusting the steel tower sections to meet design and standard requirements; (5) pre-assembling the steel tower sections, and adjusting the pre-assembled steel tower sections to meet the design and standard requirements; and (6) assembling the adjusted pre-assembled steel tower sections into the steel tower. According to the method, a traditional steel structure machining and manufacturing method based on auxiliary baseline drawing and steel disc ruler measurement is changed; the production efficiency and the measurement precision are improved; the labor cost is reduced; a basis can be provided for bridge location erection; and the convenience is provided for erection linear control of a bridge location erection monitoring unit.

Description

technical field [0001] The invention relates to the field of bridge manufacturing, in particular to a method for manufacturing multi-curved twisted steel towers and measuring and controlling the overall line shape. Background technique [0002] With the rapid development and progress of transportation technology, bridge construction and design start from three perspectives: the positioning of bridge shape, the positioning of bridge landscape and the positioning of bridge functions. The design and manufacture of bridge steel towers are based on maintaining the same functions. The change of the line shape is complex, and due to the complex force, the thickness of the steel tower wall plate is getting thicker and thicker. It is very difficult to control the welding deformation of the ultra-thick plate, and the line shape control of the special-shaped and multi-curved steel tower manufacturing. It is urgent to develop new measurement methods. Control Method. [0003] In the pas...

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The present invention provides a linear measurement control method for multi-curved twisted steel towers, which solves the problem that multi-curved twisted steel towers cannot be measured in the process of existing bridge construction

Images