Linear measurement control method for multi-curved-surface distorted steel tower
A control method and linear measurement technology, which is applied in the field of bridge manufacturing, can solve the problems of multi-curved twisted steel towers that cannot be measured, and achieve the effects of simple measurement, good manufacturing accuracy, and high control
Active Publication Date: 2018-11-02
中铁宝桥(扬州)有限公司 +1
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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.
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