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A platform for research: civil engineering, architecture and urbanism
Modal identification and soil-structure interaction analysis of a portal frame railway bridge ; Bridge Maintenance, Safety, Management, Digitalization and Sustainability
The dynamic response of portal frame bridges is influenced by soil-structure interaction. Due to the complexity of the phenomenon, predicting its dynamic behaviour is diffi-cult and time-consuming. For this reason, this interaction is rarely considered in the numerical analyses. However, recent research is providing further evidence about the importance of consid-ering it to avoid discrepancies between numerical and experimental results. In this contribution, a study on an existing portal frame railway bridge is carried out. First, the determination of its modal parameters is addressed. Then, a 3D finite-element numerical model of the bridge is imple-mented considering the track, track-bridge-soil system. Perfectly matched layers are considered at the model boundaries. The results obtained with this model are employed to implement a simplified version on which the soil is substituted by a series of spring-dashpots. After calibra-tion, a comparison is carried out with the experimental and numerical modes of the bridge
Modal identification and soil-structure interaction analysis of a portal frame railway bridge ; Bridge Maintenance, Safety, Management, Digitalization and Sustainability
The dynamic response of portal frame bridges is influenced by soil-structure interaction. Due to the complexity of the phenomenon, predicting its dynamic behaviour is diffi-cult and time-consuming. For this reason, this interaction is rarely considered in the numerical analyses. However, recent research is providing further evidence about the importance of consid-ering it to avoid discrepancies between numerical and experimental results. In this contribution, a study on an existing portal frame railway bridge is carried out. First, the determination of its modal parameters is addressed. Then, a 3D finite-element numerical model of the bridge is imple-mented considering the track, track-bridge-soil system. Perfectly matched layers are considered at the model boundaries. The results obtained with this model are employed to implement a simplified version on which the soil is substituted by a series of spring-dashpots. After calibra-tion, a comparison is carried out with the experimental and numerical modes of the bridge
Modal identification and soil-structure interaction analysis of a portal frame railway bridge ; Bridge Maintenance, Safety, Management, Digitalization and Sustainability
Jordà Monsonis, Josep (author) / Sánchez Quesada, Juan Carlos (author) / Moliner, Emma (author) / Martínez Rodrigo, María de los Dolores (author) / Romero, A. (author) / Galvín, P. (author)
2025-02-11
Conference paper
Electronic Resource
English
Bridge Maintenance, Safety, Management, Digitalization and Sustainability
| TIBKAT | 2024
Bridge Maintenance, Safety, Management, Digitalization and Sustainability
| TIBKAT | 2024
Bridge Maintenance, Safety, Management, Digitalization and Sustainability ; 9781040186497.pdf
| BASE | 2024