Steel structure pre-splicing method and system

Abstract

The invention discloses a steel structure pre-splicing method and system. When steel structures are pre-spliced, workpiece actual values are measured through a three-dimensional measurement technology and then compared with design models in real time, the design value models are modified to obtain actual value models, the actual value models are pre-spliced, and the factory on-site splicing process is omitted. Sensors are erected on the sections of the steel structures, calibration devices are arranged, probes are used for detecting and touching the sections of steel box girders, the actual value models are compared with the design models, and manufacturing error values are obtained. Virtual splicing can be achieved in software, the measured actual value models are spliced in the software in real time, and the result whether splicing can be conducted or not is visually obtained. By means of the technology, the steel structures are virtually spliced and detected, more reliable guarantees are provided for construction detection, and the site, labor cost and time are saved.

Description

technical field [0001] The invention belongs to the technical field of steel box girder construction, and in particular relates to a steel structure pre-assembly method and system. Background technique [0002] Since the late 1980s, steel structures have been widely used in the field of construction. With the development of the economy and the improvement of steel industry technology and production capacity, high-rise buildings, stadiums, airport terminals and other buildings have gradually increased, and steel structures have entered a period of rapid development. However, in most steel structure processing enterprises in China, traditional methods such as steel rulers, guy wires, lofting wires, and inspection templates are commonly used to check whether steel components meet the design requirements. For complex steel components, physical pre-assembly is also required to check the spatial position of the components and reduce the cumulative error. Today's steel structure ...

AI Technical Summary

Problems solved by technology

[0004] The main features of the traditional segmental hoisting method: the structural installation positioning and assembly quality are easy to guarantee, and there is no need to use lifting equipment with large parameters; :

[0005] (1) The segment manufacturing process is complicated and the cycle is long

[0006] The traditional process controls the welding error by splicing the beam segments on the tire frame. During the production process of each beam segment, it takes a lot of time to manufacture the tire frame, assemble and dismantle the beam segments;

[0007] (2) The tire frame occupies a lot of space in the process of segment production, and the economy is poor

[0008] Waste of manpower, material resources, financial resources and other resources, the size of the beam section is large, and the simultaneous construction of the two tire frame upper beam sections occupies most of the space of the factory shed, which consumes a lot of resources and is not conducive to the progress of other processes in the segment production process

[0009] (3) The error between beam segments is difficult to control

However, there are also errors between beam segments, which are difficult to control through traditional techniques. The adjustment of the construction site takes a long time, and the construction machinery and construction period are seriously wasted.

[0011] (4) The accuracy control measures are complex

[0012] The three-dimensional assembly of different structures is special, and it is very difficult to fully assemble the building structure up and down, left and right, and front and rear, which makes it very difficult to ensure the accuracy of measuring the deviation of the final assembly after the components are assembled and connected.

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