BIM技术在桥梁承载力评定中的应用

Application of BIM Technology in Bridge Bearing Capacity Evaluation

针对桥梁荷载试验及承载力评定中的信息管理问题,通过在建筑信息模型建模软件Revit和SQL Server数据库上进行二次开发,设计系统框架并搭建应用模块,形成一套新的桥梁承载力评定系统。在实桥案例中该系统被应用到一座预应力混凝土T形刚构桥,在某种程度上证明了其应用于实桥的可行性与有效性。结果表明:三维可视化模拟荷载试验相关的所有空间信息与数据信息均通过BIM模型集成管理;通过管理信息数据库,使数据录入、存储、查询和修改,更加方便高效;BIM模型可直接转换成有限元模型,扩展了结构分析功能,使桥梁承载力评定更趋于自动化;可方便比较桥梁试验的历史数据,纵观不同检测时点的指标改变,掌握桥梁现状和变化趋势。

In view of the problem of information management in bridge loading test and bearing capacity evaluation,a bridge carrying capacity evaluation system was developed through designing the system framework and establishing the application modules based on BIM modeling software Revit and SQL Server database.Finally,the system was applied to a prestressed concrete T-type rigid frame bridge in the case study of real bridge,and to some extent its feasibility and effectiveness of the practical application was proved.The results show that loading tests simulated by three-dimensional visualization technology,and all of testing-related spatial information and data information are integrated and managed by BIM model.The management of information database makes data input,storage,query and modify more convenient and efficient.BIM model can be directly converted into finite element model,and the structure analysis function is extended to make the bridge carrying capacity evaluation more automatic.It can be convenient to compare the historical data of the bridge testing,take a look at the change of the index of different detection time,master the current situation and the trend of the bridge.