The invention relates to the technical field of
building simulation, and discloses a BIM-based special-shaped
hyperboloid building
site model generation method and
system, and the method comprises the steps: collecting the multi-source heterogeneous
point cloud data of a special-shaped
hyperboloid building site to construct a three-dimensional feature
tensor model, and recognizing the key curvature
mutation point of the
tensor model to construct a space reference topology network; based on the digital skeleton model, geometric contour features are analyzed,
hyperboloid fitting is carried out, and an initial BIM model is obtained; performing multi-
physics field
coupling simulation on the initial model to obtain a target BIM model; extracting curvature distribution and
structural stress parameters of the target BIM model to obtain basic
model parameters, and constructing a building
performance prediction model in combination with historical performance reference data; and inquiring a
bearing capacity standard and a deformation threshold value, and analyzing the optimal curved surface parameter combination and a prestress applying strategy to obtain optimized
simulation parameters, so as to simulate the special-shaped hyperboloid building by utilizing target
model simulation. According to the method, the
simulation precision of the special-shaped hyperboloid building can be improved.