PSI - Issue 64

Iryna Rudenko et al. / Procedia Structural Integrity 64 (2024) 1216–1223 I. Rudenko and Y. Petryna / Structural Integrity Procedia 00 (2019) 000–000

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2.2. Proposed BIM-based SHM concept The proposed BIM-based SHM concept is shown in Fig. 1. The concept is subdivided into four modules: real world structure module, SHM module, BIM module and FEM module. The starting point is a real-world structure. Geodetic surveying, such as laser scanning, can be applied to the structure to generate point clouds, that will be one of the information sources for an As-Built BIM model. Another source of information is the data from design, construction as well as service phase, namely plans, reports and BIM models, if existing. Using these two sources, the As-Built BIM model, that contains mainly geometry and materials of the structure, can be created. Moreover, based on the data from design, construction and service phase, a SHM system can be designed. First, the monitoring goals should be specified, for example, the limit states and damage types of interest. Afterwards, the type, number and location of sensors as well as the data management plan should be defined. Certainly, the design of the SHM system, particularly the monitoring goals, will affect different parameters of FE models, that will be extracted from the BIM model. Hence, SHM and FEM relevant information should be added to the BIM model. The SHM relevant information includes type, location and state of the sensors, path to the sensor data as well as damages. The FEM relevant information consists of material properties, boundary conditions, complexity, finite element dimensionality, type, size as well as section offset. Subsequently, the FE models of different complexity and element dimensionality can be generated from the BIM model. The sensor data from the real-world structure as well as the numerical data from the FE model can then be used to validate the FE model. Consequently, modified parameters should be introduced back into the BIM model. Thereafter, the current state of the structure and the SHM system can be identified. The BIM model together with the FE model can be updated to the current state and used to predict the remaining service life. Based on the current state prediction, decision on the maintenance actions or demolition can be taken, following by the corresponding report within the BIM model. In this paper the focus lies on the procedure to generate FE models of different complexity and element dimensionality for ANSYS APDL from the BIM model, including SHM and FEM relevant information based on an IFC file.

Fig. 1. BIM-based SHM concept.