Influence of soil-structure interaction on the dynamic characteristics of railroad frame bridges

Heiland, Till; Aji, H. D. B.; Wuttke, Frank; Stempniewski, Lothar; Stark, Alexander

doi:10.1016/j.soildyn.2023.107800

Cited by 9 publications

(16 citation statements)

References 43 publications

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“…Liu, ZX, et al, merged spectrum representation with orthogonal decomposition, rooted in the coherence function matrix, to formulate a unified spectral decomposition expression [22]. Heiland, T, et al, utilized finite element methods to create a planar interaction model for a half-space and frame bridge, identifying the fundamental structure influenced by the first vertical intrinsic frequency to guide design optimization [23]. Lastly, Zhao, PJ, et al, introduced a novel approach to the design of girder arrangements in frame structures [24], while Huang, JD, et al, applied the durability time method for a precise and effective assessment of seismic performance [25].…”

Section: Introductionmentioning

confidence: 99%

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Yang,

Wang

2024

PLoS ONE

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The stable and site-specific operation of transmission lines is a crucial safeguard for grid functionality. This study introduces a comprehensive optimization design method for transmission line crossing frame structures based on the Biogeography-Based Optimization (BBO) algorithm, which integrates size, shape, and topology optimization. By utilizing the BBO algorithm to optimize the truss structure’s design variables, the method ensures the structure’s economic and practical viability while enhancing its performance. The optimization process is validated through finite element analysis, confirming the optimized structure’s compliance with strength, stiffness, and stability requirements. The results demonstrate that the integrated design of size, shape, and topology optimization, as opposed to individual optimizations of size or shape and topology, yields the lightest structure mass and a maximum stress of 151.4 MPa under construction conditions. These findings also satisfy the criteria for strength, stiffness, and stability, verifying the method’s feasibility, effectiveness, and practicality. This approach surpasses traditional optimization methods, offering a more effective solution for complex structural optimization challenges, thereby enhancing the sustainable utilization of structures.

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Section: Introductionmentioning

confidence: 99%

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Yang,

Wang

2024

PLoS ONE

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“…Furthermore, some researchers have also carried out on-site vibration measurements focusing on soil-structure interaction in adjacent or over-track buildings [11]. Numerical modeling has been employed by scholars to accurately predict the vibration effects of rail traffic on adjacent or overtrack buildings, with some establishing a train track-soil-building model [12][13][14], while others have conducted dynamic interaction studies of vehicle-track-bridge-soil [15][16][17][18][19][20] to investigate the behavior of rail bridges and soil-structure effects. Some scholars have taken into account the soil-structure interaction effect to investigate the dynamic interplay between soil inclusion and soil properties [21,22].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Vibration Characteristics during Various Building Construction Stages under Train Operations

Hu,

Zou,

Chen

et al. 2024

Applied Sciences

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In response to land use challenges, major urban centers have started implementing over-track building constructions above metro lines as a means of accommodating residents and workers. However, the continuous operation of trains can generate excessive vibrations that may negatively impact the overall living conditions for occupants residing in these structures. In this paper, vibration measurements were conducted on the soil and within a three-story frame structure building. Additionally, a three-dimensional finite element model of the track–soil–building was established. The wheel–rail contact force was incorporated as a dynamic load that varies with time to accurately simulate the vibration response induced by trains. According to the construction process of the over-track building, four construction stages were set up using the finite element model to study the impact of the construction stages on the vibration propagation from the soil to building structure. The results indicate that the presence of existing structures exerts a mitigating influence on soil vibrations. Pile foundation construction can effectively mitigate soil vibration to a significant extent. The findings provide references for the future development and design of over-track buildings.

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“…In this context, the dynamic characteristics summarise the relevant eigenmodes' natural frequencies and damping ratios. In-depth investigations into identifying and understanding the mechanisms associated with the SSI of portal frame bridges are described in [9,12].…”

Section: Introductionmentioning

confidence: 99%

“…According to the investigations in [12], the natural frequencies are mainly determined by the system's sensitivity to the correct determination of the stiffness and mass distribution. The influence of the SSI can be reduced to the backfill material's stiffening of the abutment walls and its effect on the eigenfrequencies.…”

Section: Introductionmentioning

confidence: 99%

“…While the model is partly based on established principles [15], its innovation lies in applying a unique modelling technique complemented by considering the application limits associated with the SSSI. Another foundational aspect of the presented approach rests upon a numerical study, as presented in [12], exploring the core SSI effects inherent in the embedded frame. The performance of the CALCULATION MODEL was evaluated through a comparative analysis of the dynamic characteristics of four concrete portal frame bridges in Germany.…”

Section: Introductionmentioning

confidence: 99%

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The Dynamic Characteristics of Railway Portal Frame Bridges: A Comparison between Measurements and Calculations

Heiland,

Stempniewski,

Stark

2024

Applied Sciences

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Railway bridges are subjected to significant dynamic loads. A numerical model of the bridge structure that captures its dynamic characteristics as accurately as possible is essential for the simulation of train crossings. However, most existing Calculation Models either do not consider the dynamic interaction between the structure and the soil, known as the soil–structure interaction (SSI), or give it only secondary importance. As a result, the accuracy of the predicted dynamic characteristics is affected. This paper illustrates how the dynamic interactions of abutments impact the portal frame bridge’s SSI. This influence prompts the question of incorporating the frequency-dependent influence of the structure–soil–structure interaction (SSSI) into the modelling process. We propose a conservative estimation of the frequency range influenced by the shear wave interference of the SSSI and recommend using it as an application limit in the development of computational models. Based on this estimation, a Calculation Model is presented. In this approach, the SSI is considered using the well-known quasi-static spring–damper method from foundation vibration analysis, adhering to limitations based on the SSSI. For the application of the presented Calculation Model, four concrete portal frame bridges with spans between 9 m and 17 m along the high-speed line from Nuremberg to Munich, Germany, are investigated by analyzing the dynamic characteristics and comparing them with the prediction of the proposed numerical Calculation Model. The presented method shows good calculation accuracy.

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Influence of soil-structure interaction on the dynamic characteristics of railroad frame bridges

Cited by 9 publications

References 43 publications

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Enhancing transmission type frame structures: A BBO algorithm-based integrated design approach

Investigation of Vibration Characteristics during Various Building Construction Stages under Train Operations

The Dynamic Characteristics of Railway Portal Frame Bridges: A Comparison between Measurements and Calculations

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