Research And Development Of CAE System For Construction Curtain Wall Structure

With the development of construction curtain wall, many kinds of complex curtain wall structures come forth one after the other, which makes the traditional structure analysis methods cannot meet the needs of engineer application analysis any more. However, the computer aided engineering (CAE) software available for structure analysis do not fit the curtain wall structure analysis well, thus they often need a long-term user learning cycle. What's more, they lack the ability to integrate with CAD, support engineering modeling and engineering post-processing, which troubles the engineering application analysts a lot. This paper analyzed the features of the curtain wall structure and the needs of CAE for construction curtain wall structure analysis. Based on the studies on the CAE system for curtain wall structure analysis and its core technologies, a professional CAE software special for the construction curtain wall structure analysis is developed.First, based on the analysis of the CAE software available and CAE needs for construction curtain wall structure analysis, this paper put forward a 4-layer software architecture blue print for curtain wall structure analysis CAE system with AutoCAD as the graphics-processing platform.Second, this paper studied the core technologies for developing the CAE system for construction curtain wall, such as sparse matrix storage and processor for FEA, parametric design and engineering modeling and so on. After analyzing the features of total rigidity matrix and its operation of the finite element analysis, it presented a kind of Linked Compressed Row Storage with column storage index format, which improved the efficiency of both the storage and its operation of total rigidity matrix. Based on CAE system for construction curtain wall structure analysis, it presented a kind of parametric design language W-SPDL and the architecture of its processor especially for construction curtain wall structure analysis, which can greatly enhance compound features of the system. It is also helpful to further developing for the system, batch commands processing, parametric design of structure analysis and simplifying the operation flows. Based on the analysis of the features of the engineering model for construction curtain wall structures, this paper summarized the fundamental principles of engineering modeling and presented a visual engineering modeling method, which combine parametric modeling with vector-graph recognition modeling together. It...