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Appl. Sci. 2017, 7(2), 191; doi:10.3390/app7020191

FE Model Updating on an In-Service Self-Anchored Suspension Bridge with Extra-Width Using Hybrid Method

1
School of Civil Engineering, Southeast University, No. 2 Sipailou Road, Nanjing 210096, China
2
Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, No. 1 Zhanlanguan Road, Beijing 100044, China
3
College of Civil Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, China
*
Author to whom correspondence should be addressed.
Received: 10 January 2017 / Accepted: 14 February 2017 / Published: 16 February 2017
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Abstract

Nowadays, many more bridges with extra-width have been needed for vehicle throughput. In order to obtain a precise finite element (FE) model of those complex bridge structures, the practical hybrid updating method by integration of Gaussian mutation particle swarm optimization (GMPSO), Kriging meta-model and Latin hypercube sampling (LHS) was proposed. By demonstrating the efficiency and accuracy of the hybrid method through the model updating of a damaged simply supported beam, the proposed method was applied to the model updating of a self-anchored suspension bridge with extra-width which showed great necessity considering the results of ambient vibration test. The results of bridge model updating showed that both of the mode frequencies and shapes had relatively high agreement between the updated model and experimental structure. The successful model updating of this bridge fills in the blanks of model updating of a complex self-anchored suspension bridge. Moreover, the updating process enables other model updating issues for complex bridge structures View Full-Text
Keywords: self-anchored suspension bridge; FE model updating; Kriging meta-model; Gaussian mutation; particle swarm optimization self-anchored suspension bridge; FE model updating; Kriging meta-model; Gaussian mutation; particle swarm optimization
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Xia, Z.; Li, A.; Li, J.; Duan, M. FE Model Updating on an In-Service Self-Anchored Suspension Bridge with Extra-Width Using Hybrid Method. Appl. Sci. 2017, 7, 191.

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