面向结构有限元分析的模型转换方法研究

通过分析当前建筑工程项目模型信息传递中存在的典型问题及应用需求，提出IFC-API建筑结构模型转换模式，并结合前期结构分析模型转换框架，形成一套完整的基于BIM的面向结构有限元分析的模型转换体系，对解决设计阶段信息断层、提高效率具有重要意义；同时针对模型显示进行优化，扩展研发基于BIM的模型转换平台，并通过某一小学教学楼进行实例验证。该研究从理论、技术、应用层面就面向结构有限元分析的模型转换取得突破性进展，也为后续基于BIM的时变结构安全性能模拟和分析提供支持。

RESEARCH ON MODEL CONVERSION APPROACH TOWARDS STRUCTURAL FINITE ELEMENT ANALYSIS

Inadequate integration and interoperability are still inflicting an economic burden with the increasing requirement of model conversion between architectural and structural models. This paper presents a novel approach which combines an Industry Foundation Classes (IFC)-Application Program Interface (API) based conversion approach with our previous research on model conversion among different structural analysis models, providing a Building Information Model (BIM)-based model conversion framework towards structural finite element analysis to improve the efficiency within design industry. The approach was implemented in the self-developed BIM-based conversion platform based on the optimization algorithm of model display. The platform was tested in a teaching building to verify the conversion process. This research has made a breakthrough in the theory, technology, and application of model conversion towards structural finite element analysis and has established the foundation for the subsequent research of BIM-based simulation and analysis for time-varying structures.