The invention relates to the technical field of building
engineering construction, and provides a template construction method and
system for a variable cross-section special-shaped cylinder based on virtual
assembly, and the method comprises the steps: building a variable cross-section special-shaped cylinder digital model comprising a plurality of
layers of cylinder bodies; in each layer of cylinder, three sections are selected as references for
template design, and a reference section is selected from the three sections; a first formwork
assembly is laid on the circumference of the datum plane, and a second formwork
assembly and a third formwork assembly are laid on the circumferences of the other two sections respectively; importing data of the first template component, the second template component and the third template component into BIM
software, performing virtual splicing through the BIM
software, and determining an optimal splicing scheme; and after virtual assembling is completed based on the optimal assembling scheme, the assembling effect is verified and evaluated. According to the method, the
workload of on-site
cutting and splicing can be greatly reduced, meanwhile, the on-site adjustment time is shortened through formwork design and positioning, and therefore the construction period is remarkably shortened, and the construction efficiency is improved.