Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improving the Seismic Performance of Buried Gas Pipelines Subjected to Near-Fault Earthquakes using Friction Dampers
Seismic behavior of the gas pipelines has been considered due to their vital role and also because experiences with recent earthquakes demonstrated a poor seismic performance. This research attempts to improve the seismic performance of gas pipelines subjected to near-fault (NF) earthquakes by utilizing supplemental damping. In this study, the buried gas pipelines of a zone in Tehran were modeled using finite element analysis (FEA). Moreover, nonlinear time-history analysis was performed by seismic scaled records of NF earthquakes. The results determined the critical points of pipelines which failed due to seismic waves. Friction dampers are designed to have moving parts that will slide over each other during a strong earthquake. When the parts slide over each other, they create friction which uses some of the energy from the earthquake that goes into the system. So, as a proper solution, the friction dampers were employed for better seismic performance of the system. The obtained results after damper installation showed that the failure points were retrofitted efficiently.
Improving the Seismic Performance of Buried Gas Pipelines Subjected to Near-Fault Earthquakes using Friction Dampers
Seismic behavior of the gas pipelines has been considered due to their vital role and also because experiences with recent earthquakes demonstrated a poor seismic performance. This research attempts to improve the seismic performance of gas pipelines subjected to near-fault (NF) earthquakes by utilizing supplemental damping. In this study, the buried gas pipelines of a zone in Tehran were modeled using finite element analysis (FEA). Moreover, nonlinear time-history analysis was performed by seismic scaled records of NF earthquakes. The results determined the critical points of pipelines which failed due to seismic waves. Friction dampers are designed to have moving parts that will slide over each other during a strong earthquake. When the parts slide over each other, they create friction which uses some of the energy from the earthquake that goes into the system. So, as a proper solution, the friction dampers were employed for better seismic performance of the system. The obtained results after damper installation showed that the failure points were retrofitted efficiently.
Improving the Seismic Performance of Buried Gas Pipelines Subjected to Near-Fault Earthquakes using Friction Dampers
Shokouhi, S. K. Sadat (Autor:in)
International Conference on Pipelines and Trenchless Technology ; 2013 ; Xi'an, China
ICPTT 2013 ; 718-730
01.10.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
| Taylor & Francis Verlag | 2022
Performance of Structures with Passive Dampers Subject to Near-Fault Earthquakes
| British Library Conference Proceedings | 2002