Article
Engineering, Civil
Lara Bettinelli, Bernhard Glatz, Andreas Stollwitzer, Josef Fink
Summary: This study investigates the importance of considering vehicle-bridge-interaction effects in the computational determination of dynamic bridge vibrations, proposing methods to determine additional mass and damping for bridge structures. Results show that applying one of the redesigned approaches can better reflect the influence of vehicle-bridge-interaction, although there are observed application limitations due to structural and train properties.
ENGINEERING STRUCTURES
(2022)
Article
Computer Science, Interdisciplinary Applications
Charikleia D. Stoura, Elias Paraskevopoulos, Elias G. Dimitrakopoulos, Sotirios Natsiavas
Summary: This paper presents a Dynamic Partitioning Method (DPM) for solving the vehicle-bridge interaction (VBI) problem using a set of second-order ordinary differential equations (ODEs). The method introduces auxiliary contact bodies, dynamic representation of motion constraints, and reduces computational cost in numerical applications for large vehicle-bridge systems. Compared to existing methods, DPM is both accurate and cost-efficient in handling VBI problems.
COMPUTERS & STRUCTURES
(2021)
Article
Engineering, Civil
Zhibin Jin, Bo Huang, Shiling Pei, Yujie Zhang
Summary: This study improved the accuracy of the moving load model by adding damping to simply-supported bridges in order to consider the vehicle-bridge interaction effect. A semi-closed formula was derived to reveal the combination of vehicle and bridge parameters at which maximum VBI effect occurs. Numerical simulations verified the accuracy and robustness of the additional damping, which was shown to be more accurate than the damping specified by Eurocode 1 in predicting bridge vibrations.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Civil
Jiawang Zhan, Junjie You, Xuan Kong, Nan Zhang
Summary: This study proposes a new method to identify bridge frequencies from vehicles moving at a high speed by combining the responses of multiple vehicles, and verifies the effectiveness of the method through numerical simulations. The influence of track irregularity, vehicle speed, bridge stiffness, and bridge damping on the identification results is also analyzed.
ENGINEERING STRUCTURES
(2021)
Article
Acoustics
Zhenhua Shi, Nasim Uddin
Summary: The coupled differential equation group for the vehicle bridge interaction system is reestablished under the assumption that the vehicle acceleration magnitude is much lower than the gravitational acceleration constant. Several critical parameters including bridge damping, vehicle frequency, vehicle speed, vehicle mass, and vehicle damping are studied to investigate their effects on extracting multiple bridge frequencies from the vehicle. The results show that the bridge damping plays a significant role in the vibration behavior of both the vehicle and the bridge compared to the vehicle damping.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Engineering, Civil
Yuefeng Shao, J. M. W. Brownjohn, Changqing Miao, Miaomin Wang
Summary: This paper proposes a linear dynamic vehicle-bridge interaction method that can reduce the computational overhead of large structures in dynamic response analysis by modal analysis and precise time-integration method, and verifies its application in vehicle model and dynamic sensitivity analysis of a beam.
Article
Engineering, Civil
Judy P. Yang
Summary: This study investigates the vehicle-bridge interaction using a semi-analytical approach based on a three-mass vehicle model, presenting the theoretical formulation of the system and deriving semi-analytical solutions for further analysis. The results can serve as reference solutions for calibrating VBI analyses using different models or methods.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2021)
Article
Engineering, Mechanical
Zhaowei Chen
Summary: The study investigates the influence of track stiffness on the dynamic behaviors of the high-speed vehicle-track-bridge dynamic system, showing that the distribution of track stiffness affects system vibrations and considering track elasticity reveals more vibration details. The most sensitive indicator to different track types is the pitch acceleration of bogie.
VEHICLE SYSTEM DYNAMICS
(2021)
Article
Computer Science, Interdisciplinary Applications
Kamal Krishna Bera, Arnab Banerjee
Summary: A consistent dynamic stiffness matrix is formulated for flutter analysis of bridge decks. The equations of motion for vertical, lateral, and torsional degrees of freedom are considered, and the self-excited lift, drag, and torsional moment are based on the unsteady linear model involving eighteen flutter derivatives. The velocity-dependent and strain rate-dependent viscous damping coefficients, obtained in terms of the corresponding modal damping ratios, are also included in the formulation. The present formulation allows accurate flutter analysis with a minimal number of elements compared to conventional finite element approaches.
COMPUTERS & STRUCTURES
(2023)
Article
Engineering, Civil
Bernhard Glatz, Josef Fink
Summary: The choice of vehicle models in the dynamic analysis of simply supported railway bridges directly affects the quality of computed results. While simple moving load models tend to overestimate bridge responses, models considering vehicle-bridge interaction effects give more accurate results. The Eurocode allows for additional structural damping in analyses with moving load models, but careful consideration is needed to ensure conservative results.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Civil
Andreas Stollwitzer, Lara Bettinelli, Josef Fink
Summary: This paper investigates the influence of longitudinal track-bridge interaction on the dynamic analysis of railway bridges. Through experiments, the dynamic stiffness and damping values of the track-structure interaction are determined, and it is found that the dynamic properties vary significantly with vertical load and climatic conditions.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
D. S. Yang, C. M. Wang
Summary: This study adopts the improved vehicle scanning method (VSM) to monitor the structural health of bridges and identify their healthy and damaged states. The improved VSM uses an elliptic filter to obtain high-quality narrowband signals, which accurately reveal the vibration modes and damage locations in the bridges. It is shown that this improved VSM outperforms existing methods by directly pinpointing the damage locations with minimal postprocessing effort.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Mechanical
Zhuyou Hu, Ping Lin, He Guo, Yumei Zhang, Zhihai Xiang
Summary: The response of passing vehicles has become a popular method for bridge damage detection. Previous research mainly focused on the impact of bridge stiffness on vehicle responses. However, this paper shows that vehicle responses are more sensitive to stiffness transitions in bridge girders. By introducing the concept of effective vehicle stiffness, the authors established a theoretical basis and demonstrated that the acceleration of the vehicle has an abrupt change at stiffness transition points. This effect is enhanced when a tapping force, generated through vehicle velocity and toothed wheel patterns, is applied near the vehicle resonance frequency. The paper also proposes a novel damage detection method based on the quadratic relationship between the acceleration amplitude and stiffness change ratio, which is verified through numerical simulations, experimental tests, and field tests.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Engineering, Civil
Paul Koenig, Patrick Salcher, Christoph Adam
Summary: A semi-analytical approach based on a lumped parameter model is presented for the analysis of the dynamic interaction system of train, track, bridge, and subsoil. The proposed approach effectively combines various subsystems using complex modal expansion, Rayleigh-Ritz approximation, and other techniques. The accuracy of the model is validated through comparisons with a finite element model.
ENGINEERING STRUCTURES
(2022)
Article
Acoustics
Tingpeng Zhang, Ziluo Xiong, Jin Zhu, Kaifeng Zheng, Mengxue Wu, Yongle Li
Summary: To ensure the reliability and functionality of bridges, timely inspection is necessary due to structural deterioration caused by environmental and operational effects. This paper presents a novel vehicle scanning method (VSM) for bridge frequency extraction by integrating moving and non-moving vehicles, which improves the extractability of bridge frequencies in vehicle responses and enhances the robustness of the method in noisy real-world environments.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Engineering, Civil
Ye Xia, Peng Wang, Limin Sun
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2019)
Article
Engineering, Multidisciplinary
Wenhao Zheng, Danhui Dan, Wei Cheng, Ye Xia
Article
Acoustics
Liye Zhang, Ye Xia, Jose A. Lozano-Galant, Limin Sun
SHOCK AND VIBRATION
(2019)
Article
Green & Sustainable Science & Technology
Xiaoming Lei, Limin Sun, Ye Xia, Tiantao He
Article
Construction & Building Technology
Ye Xia, Xiaoming Lei, Peng Wang, Guoming Liu, Limin Sun
STRUCTURAL CONTROL & HEALTH MONITORING
(2020)
Article
Chemistry, Analytical
Ao Wang, Zongkai Zhang, Xiaoming Lei, Ye Xia, Limin Sun
Summary: Thermal energy exchange induces non-uniform temperature distribution on concrete bridge structures, affecting their static and dynamic properties. A systematic all-weather thermal simulation method was proposed to study the temperature distributions of concrete maglev bridges, accurately simulating solar shadow distribution. The simulation method showed higher accuracy under overcast or rainy weather, highlighting the importance of considering solar radiation effects in structural temperature prediction.
Article
Environmental Sciences
Ye Xia, Xiaoming Lei, Peng Wang, Limin Sun
Summary: This paper proposes an artificial intelligence-based methodology for condition assessment of regional bridges, which includes data integration, condition assessment, and maintenance optimization. The regional bridge condition deterioration model is established by neural networks, and the impact of the maintenance scheme on the future condition of bridges is quantified.
Article
Construction & Building Technology
Ye Xia, Xiaoming Lei, Peng Wang, Limin Sun
Summary: This study proposes a comprehensive data-driven framework for network-level bridge condition assessment. By analyzing periodic bridge inspection reports in China, the future condition of bridges can be predicted, and maintenance strategies can be optimized to meet economic and performance constraints.
STRUCTURAL CONTROL & HEALTH MONITORING
(2022)
Article
Construction & Building Technology
Fengyuan Wu, Chenglin Feng, Ye Xia
Summary: The Wufengshan Yangtze River Bridge, a thousand-meter high-speed railway suspension bridge, adopts innovative technologies to fill the gaps in the field and sets a model for the construction of high-speed railway suspension bridges in China and the world.
STRUCTURAL ENGINEERING INTERNATIONAL
(2022)
Article
Computer Science, Interdisciplinary Applications
Xiaoming Lei, Ye Xia, Lu Deng, Limin Sun
Summary: This study develops a deep reinforcement learning-based framework to optimize the life-cycle maintenance strategies of regional bridges. The framework is able to generate multiple optimal maintenance strategies that match budget constraints and maximize the cost-effectiveness of maintenance actions.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2022)
Article
Construction & Building Technology
Xudong Jian, Zhilu Lai, Ye Xia, Limin Sun
Summary: This paper aims to improve the performance of bridge weigh in motion (BWIM) in weighing individual axle loads. A novel robust BWIM algorithm is proposed based on regularized total least squares and constraints on the relationship between axles. Experimental results show that the proposed algorithm significantly outperforms other existing BWIM algorithms in terms of accuracy and robustness in identifying individual axle weight.
STRUCTURAL CONTROL & HEALTH MONITORING
(2022)
Article
Engineering, Mechanical
Xudong Jian, Ye Xia, Limin Sun
Summary: This study conducts a 3D simulation of vehicle-bridge interaction and proposes a novel frequency-domain method to identify bridge natural frequencies. The proposed method has the potential to fast inspect large quantities of bridges, making it valuable for indirect bridge structural identification.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Construction & Building Technology
Shiyang Zhang, Changzheng Feng, Yaoyao Fan, Ye Xia
Summary: Fair-faced concrete is a form of expression in architectural modernism, where no decoration is added to the surface of the structure and the natural color and texture of the concrete itself are used as the final design. While there are technical challenges in applying fair-faced concrete to complex structures, this report explores measures to improve its feasibility and economy in such structures.
STRUCTURAL ENGINEERING INTERNATIONAL
(2023)
Article
Engineering, Multidisciplinary
Xudong Jian, Ye Xia, Eleni Chatzi, Zhilu Lai
Summary: The identification of influence surfaces for bridge structures using calibration tests and deep learning methods is important for understanding traffic loads and assessing structural conditions.
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2023)
