Steel structure three-dimensional scanning observe and control method

Abstract

The invention relates to a computer aided construction method for a steel structure, in particular to a three-dimensional scanning, measuring and controlling method for pre-assembled or mounted steel structures. The method comprises the following steps: using a total station to carry out precise three-dimensional positioning, scanning and measuring for a component, designing N points on the component, inputting the measured points to AUTOCAD to build a model, making an actual three-dimensional component model, using a built theoretical model in a computer, compounding the two models to obtain actual processing deviation of the component, then drawing up a finishing proposal according to deviation characteristic, and after the finishing, measuring again, building the model, compounding the models and finishing till to accord with requirements. Compared with the prior method of entity detection and preassemble, the method has the advantages that the method reduces large quantity of construction sites, manpower and mechanical investment, only needs few men to finish measuring and controlling processes of the construction, improves labor productivity greatly, ensures construction quality, reduces construction cost greatly, and achieves low cost, high efficiency and high benefit.

Description

Technical field: [0001] The invention relates to a computer-aided construction method for a steel structure, in particular to a three-dimensional scanning measurement and control method for a pre-assembled and installed steel structure. Background technique: [0002] Steel structures are more and more widely used in my country's industrial, civil and public buildings, and there are more and more large-scale and complex structural designs. Multi-angle complex space structures are common in construction sites. In the past, pre-assembly was mainly used to ensure the integrity of components. Processing and installation quality. If this method is a good quality control method for small and flat structures, if it is for large and complex spatial structures, it is generally not possible to carry out overall pre-installation due to site space and hoisting capacity limitations. The general method is divided into two or more Sub-plane pre-installation ensures the plane connection accu...

AI Technical Summary

Problems solved by technology

If this method is a good quality control method for small and flat structures, if it is for large and complex spatial structures, it is generally not possible to carry out overall pre-installation due to site space and hoisting capacity limitations. The general method is divided into two or more Sub-plane pre-installation to ensure the plane connection accuracy of structural parts, but it cannot fully guarantee the overall component installation accuracy

In the past, this pre-assembly method greatly wasted the construction site, manpower, horizontal transportation machinery and vertical transportation machinery, the cost of labor and machinery was high, and the production efficiency was very low.