Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / Sánchez Quesada, Juan Carlos (Autor:in) / Moliner, Emma (Autor:in) / Martínez Rodrigo, María de los Dolores (Autor:in) / Romero, A. (Autor:in) / Galvín, P. (Autor:in)
11.02.2025
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Bridge Maintenance, Safety, Management, Digitalization and Sustainability
| TIBKAT | 2024
Bridge Maintenance, Safety, Management, Digitalization and Sustainability
| BASE | 2024
Bridge Maintenance, Safety, Management, Digitalization and Sustainability
| TIBKAT | 2024
Bridge Maintenance, Safety, Management, Digitalization and Sustainability ; 9781040186497.pdf
| BASE | 2024