基于IFC 标准的结构分析模型构件偏心问题研究

数据标准是解决信息共享与交换问题的基础。IFC 作为buildingSMART 联盟发布的建筑信息模型数据交换的国际标准，用来实现建筑全生命周期中不同专业、不同阶段各软件之间的协同工作。目前在工程建设行业多专业的配合过程中，建筑与结构专业的信息交互最为迫切。在结构专业领域，构件偏心问题对结构模型的分析有着重要影响。基于建筑信息模型数据共享与交换的IFC 标准，针对结构分析软件之间的模型数据转换问题，通过以SGF 结构通用文件格式为基础的数据转换平台，提取偏心构件的数据表达并设计数据转换算法，运用C++编程语言，实现结构构件偏心数据的IFC 表达。

On the Structural Analysis Model with Eccentric Members Based on Industry Foundation Classes Standard

Data standards are the basis for resolving information sharing and exchange issues. As theinternational data standard for the data exchange in building information modeling, industrialfoundation classes (IFC), released by buildingSMART alliance, is designed to coordinate work ofdifferent disciplines and software at different stages throughout the lifecycle of buildings. At present,the information exchange between architectural and structural domains is the most urgent issue in theprocess of multi-specialty cooperation in AEC/FM (architecture, engineering, construction & facilitymanagement) industry. In the structural domain, the issue of eccentric members exerts a considerableinfluence on the analysis of structural models. With regards to the data conversion of differentstructural analysis software, this paper extracts the data representation of eccentric members, anddesigns a conversion algorithm for eccentric structural model through a data conversion platformbased on the structural general format (SGF), which is used for data interoperability among variouscommercial structural software. Moreover, C++ is employed in the research to achieve thetransformation for the eccentric members of structure models using IFC format.