Journal ArticleDOI
Parametric analysis of the seismic response of coupled tunnel–soil–aboveground building systems by numerical modelling
TLDR
In this paper, a parametric analysis of the Catania underground network is presented, starting from a real case-history regarding the underground network, and in particular a cross-section including an aboveground building, the depth of the tunnel, the position of the above ground building and the seismic inputs were modified in order to study their effects on the dynamic tunnel-soil-aboveground building interaction.Abstract:
During an earthquake, the presence of tunnels may affect the seismic wave propagation in the involving soil and in turns the response of aboveground structures. At the same time, the vibrations of aboveground structures may create a complex interaction with the tunnel and, consequently, they may modify the dynamic response of the tunnel. Most of the published papers considered only tunnel–soil systems or only soil−aboveground structures; analyses involving tunnel plus soil plus aboveground structures (full-coupled analyses) are still very rare. The present paper deals with a parametric analysis: starting from a real case-history regarding the Catania (Italy) underground network, and in particular a cross-section including an aboveground building, the depth of the tunnel, the position of the aboveground building and the seismic inputs were modified in order to study their effects on the dynamic tunnel–soil–aboveground building interaction. Thirty different recorded accelerograms were adopted. Results are reported in terms of accelerations in the time and frequency domains, as well as in terms of seismic bending moments and axial forces of the tunnel lining.read more
Citations
More filters
Journal ArticleDOI
Seismic behaviour of tunnels: From experiments to analysis
Grigorios Tsinidis,Filomena de Silva,Ioannis Anastasopoulos,Emilio Bilotta,Antonio Bobet,Youssef M. A. Hashash,Chuan He,Georgios Kampas,Jonathan Knappett,Gopal Madabhushi,Nikolaos Nikitas,Kyriazis Pitilakis,Francesco Silvestri,Giulia M.B. Viggiani,Raul Fuentes +14 more
TL;DR: In this article, the authors present a review of the current understanding of the seismic behaviour of tunnels, focusing on recorded responses of actual tunnels during past earthquakes, as well as relevant experimental studies.
Journal ArticleDOI
Numerical modelling of the seismic response of a tunnel–soil–aboveground building system in Catania (Italy)
TL;DR: In this article, a case-history of the Catania (Italy) underground network has been analyzed using full-coupled FEM modeling, and the authors have investigated the seismic behavior of the system in terms of acceleration time-histories, amplification ratios, Fourier amplitude spectra, as well as seismic bending moments and axial forces of the tunnel lining.
Journal ArticleDOI
Response of urban single and twin circular tunnels subjected to transversal ground seismic shaking
TL;DR: In this article, the effect of heavy buildings on the response of urban single or twin circular tunnels, when subjected to severe ground seismic shaking in the transversal direction, was investigated.
Journal ArticleDOI
Influence of presence of adjacent surface structure on seismic response of underground structure
TL;DR: In this article, a numerical study is made on the dynamic through-soil interaction between underground station and nearby pile supported surface structure on viscous-elastic soil layer, under vertically incident S wave.
Journal ArticleDOI
Experimental study on the closed-cell aluminum foam shock absorption layer of a high-speed railway tunnel
TL;DR: Wang et al. as discussed by the authors applied the closed-cell aluminum foam in designing a shock-absorbing layer for a high-speed railway tunnel, which was tested using a large-scale shaking table.
References
More filters
Book
Finite Element Procedures
TL;DR: The Finite Element Method as mentioned in this paper is a method for linear analysis in solid and structural mechanics, and it has been used in many applications, such as heat transfer, field problems, and Incompressible Fluid Flows.
Journal ArticleDOI
Seismic design and analysis of underground structures
TL;DR: A summary of the current state of seismic analysis and design for underground structures can be found in this paper, where the authors discuss special design issues, including the design of tunnel segment joints and joints between tunnels and portal structures.
Journal ArticleDOI
Assessment of damage in mountain tunnels due to the taiwan chi-chi earthquake
TL;DR: In this paper, a systematic assessment of damage in the mountain tunnels in Taiwan after the Chi-Chi earthquake was carried out and the results showed that the degree of damage is associated with the geological condition and structural arrangement of the tunnel.
Journal ArticleDOI
Simplified Frequency Content Estimates of Earthquake Ground Motions
TL;DR: In this paper, three simplified frequency content parameters are examined: mean period (T m ), predominant period, and smoothed spectral predominant period (SPM) for 306 strong motion recordings from 20 earthquakes in active plate-margin regions.
Journal ArticleDOI
Seismic Response of Horizontal Soil Layers
Izzat M. Idriss,H. Bolton Seed +1 more
TL;DR: In this paper, methods of analysis of the response of soil deposits during earthquakes are presented, which include linear elastic analyses, a bilinear analysis, and an equivalent linear analysis.