Large and complex biomimetic structures are very difficult to design.Advance CAD/CAE technologies are gradually applied to the construction field and provide a useful solution for the structural design of biomime-tic constructions.The technologies of virtual simulation were extensively used in the project of Himalayan Art Cen-ter in Shanghai, which is very complex biomimetic structure.CATIA was used to accurately build up the complex curved surfaces.The grid model was generated by HYPERMESH and inputed into ANSYS/SAP/ABAQUS to carry out the different analysis for different purposes.The structural design was completed very well.The solution could be tIle reference for the same kinds of biomimetic construction.

The theory and practice study is carried out to solve problems of stability analysis method and load factor limits for large-span abnormal RC shell roof structure. One new stability analysis method is developed in Abaqus software which can consider strength failure of concrete material. The reasonable safety factor to the concrete shell is discussed when strength failure and buckling is coupled together, and the recommended value is 2.0. Finally, the practice study is carried out with Datong theatre project as a case. The results show that strength failure of concrete material is the main failure mode to this roof structure, and the comprehensive safety factor can meet the requirements. Analysis and evaluation methods used in this paper can provide reference for other similar structures.