Multidisciplinary Digital Publishing Institute (MDPI)
Doi
Abstract
In the Architecture, Engineering, and Construction (AEC) industry, particularly civil
engineering, the Finite Element Method (FEM) is a widely applied method for computational
designs. In this regard, computational simulation has increasingly become challenging due to
uncertain parameters, significantly affecting structural analysis and evaluation results, especially
for composite and complex structures. Therefore, determining the exact computational parameters
is crucial since the structures involve many components with different material properties, even
removing some additional components affects the calculation results. This study presents a solution
to increase the accuracy of the finite element (FE) model using a swarm intelligence-based approach
called the particle swarm optimization (PSO) algorithm. The FE model is created based on the
structure’s easily observable characteristics, in which uncertainty parameters are assumed
empirically and will be updated via PSO using dynamic experimental results. The results show that
the finite element model achieves high accuracy, significantly improved after updating (shown by
the evaluation parameters presented in the article). In this way, a precise and reliable model can be
applied to reliability analysis and structural design optimization tasks. During this research project,
the FE model considering the PSO algorithm was integrated into an actual bridge’s structural health
monitoring (SHM) system, which was the premise for creating the initial digital twin model for the
advanced digital twinning technologyThis work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference UIDB/04029/2020, and under the Associate Laboratory Advanced Production and Intelligent Systems ARISE under reference LA/P/0112/2020. The authors also acknowledge ANI (“Agência Nacional de Inovação”) for the financial support given to the R&D Project “GOA Bridge Management System—Bridge Intelligence”, with reference POCI-01-0247-FEDER-069642,
cofinanced by the European Regional Development Fund (FEDER) through the Operational Competitiveness and Internationalization Program (POCI).Minh Q. Tran was supported by the doctoral grant reference PRT/BD/154268/2022 financed by the Portuguese Foundation for Science and Technology (FCT), under the MIT Portugal Program (2022 MPP2030-FCT). Minh Q. Tran acknowledges Huan X. Nguyen (Faculty of Science and Technology, Middlesex University, London NW4 4BT, UK) and Thuc V. Ngo (Mien Tay Construction University, Institute of Science and International Cooperation, 85100 Vĩnh Long, Vietnam) for their support as cosupervisors as well as specific suggestions in terms of the “conceptualization” and “methodology” of this paper. Helder S. Sousa acknowledges the funding by FCT through the Scientific Employment Stimulus—4th Editio