Journal ArticleDOI
Concurrent multi-scale modeling of civil infrastructures for analyses on structural deterioration-Part I: Modeling methodology and strategy
TLDR
In this article, a concurrent multi-scale model of structural behavior (CMSM-of-SB) was developed to analyze the structural behavior and nonlinear damage features of local details in a large complicated structure in order to meet the needs of structural state evaluation and structural deteriorating.About:
This article is published in Finite Elements in Analysis and Design.The article was published on 2009-09-01. It has received 56 citations till now. The article focuses on the topics: Truss.read more
Citations
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Journal ArticleDOI
Multiscale Modeling and Model Updating of a Cable-Stayed Bridge. II: Model Updating Using Modal Frequencies and Influence Lines
X. Xiao,You Lin Xu,Qing Zhu +2 more
TL;DR: In this paper, a multiscale finite-element (FE) model and a corresponding model-updating technique are required so that the FE model can best represent the prototype and can be used to well predict both global and local responses.
Journal ArticleDOI
Multiscale Modeling and Model Updating of a Cable-Stayed Bridge. I: Modeling and Influence Line Analysis
Qing Zhu,You Lin Xu,X. Xiao +2 more
TL;DR: In this paper, a multiscale finite-element (FE) model with detailed geometry and affordable computation time is presented for the Stonecutters Bridge in Hong Kong, which is a cable-stayed bridge with a 1,018m main span.
Finite Element Modelling for Fatigue Stress Analysis of Large Suspension Bridges
TL;DR: In this article, a finite element (FE) model of a large suspension steel bridge for fatigue stress analysis is presented, and the verification of the model is carried out with the help of the measured bridge modal characteristics and the online data measured by the structural health monitoring system installed on the bridge.
Journal ArticleDOI
Adaptive concurrent three-level multiscale simulation for trans-scale process from material mesodamage to structural failure of concrete structures:
Bin Sun,Zhaoxia Li +1 more
TL;DR: In this article, a multiscale method is developed to simulate the trans-scale process of concrete structures from material mesodamage to structural failure with three-level model which, respectively, describe n...
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Mixed-dimensional finite element coupling for structural multi-scale simulation
F. Y. Wang,You Lin Xu,W.L. Qu +2 more
TL;DR: The proposed coupling method can handle both linear and nonlinear mixed-dimensional FE coupling problems more accurately than the existing methods and that it can be applied to a structure satisfactorily for multi-scale simulation.
References
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Book
Finite Element Model Updating in Structural Dynamics
TL;DR: A comparison of Numerical Data with Test Results and Iterative Methods Using Modal Data for Model Updating shows that the former is more accurate than the latter.
Journal ArticleDOI
Fatigue analysis and life prediction of bridges with structural health monitoring data — Part I: methodology and strategy
TL;DR: In this paper, a structural model for the fatigue stress analysis of bridge-deck structures is proposed, in which structures are modeled by elastic members and welded connections with possible accumulative damage.
An overview of modal-based damage identification methods
TL;DR: In this article, the authors provide an overview of methods that examine changes in measured vibration response to detect, locate, and characterize damage in structural and mechanical systems, and discuss critical issues for future research in the area of modal-based damage identification.
Journal ArticleDOI
Vibration Studies of Tsing Ma Suspension Bridge
You Lin Xu,J. M. Ko,W. S. Zhang +2 more
TL;DR: In this paper, a three-dimensional dynamic finite element model is established for the Tsing Ma long suspension bridge in Hong Kong, and modal analysis is performed to determine natural frequencies and mode shapes of lateral, vertical, torsional, longitudinal, and coupled vibrations of the bridge.
Journal ArticleDOI
Fatigue analysis and life prediction of bridges with structural health monitoring data — Part II: application
TL;DR: In this article, the effect of low stress cycles on the fatigue and service life is considered by modifying the stress range when it is less than a limit value of stress range, and the influence of updating on the calculation of fatigue damage and predicted service life was numerically investigated.