Research Of BIM Model Based On Influence Factors Of Concrete Structural Durability

The problems of concrete structural durability cause much damage increasingly, not only affect the life of the structure, and bring huge economic losses. with the conception of Building Information Modeling deepening and the function of BIM series software increasingly perfecting, BIM technology is widely used in building design, construction, management, and post-maintenance phase. building information model can take into account all the durability factors in the whole life cycle. thus establishing BIM model to study the durability of concrete structures is important. The main work includes the following three aspects:First of all, With the deeply understanding of the concept of LOD, based on the request of LOD specification using stepwise refinement of classification, the factors that influence the durability of concrete structures on internal factors and external factors in accordance with the material level, component level and stratified hierarchy, and in accordance with the classification criteria drawn based on concrete LOD framework that influence the durability factors.Second, research the environment and development platform of Revit secondary development, use Revit API application interface create a program by Add-in Manager Revit plug-in load program file, complete the function of concrete reinforcement in concrete beams and columns. using the function of Revit shared parameters created member properties can be customized to add the factors that influence the durability of concrete structures to the property.Third, Establish concrete structural durability factors BIM database to verify the feasibility of BIM database of BIM database query functions are research and development, and the establishment of a secondary development based on Revit Structure building information modeling durability. Based LOD hierarchical structure durability has to be assessed on members, sub-units and units are identified in accordance with safety standards, the use of standards and reliability standards division level.Through the above work, based on Revit secondary development establishes the database of concrete structural durability factors is important for the durability of concrete research in the whole life of building.