Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
2.5D Ground Motion Effects from Excitation of Underground Tunnels by Obliquely Incident Seismic Waves
In densely populated urban areas, the presence of underground tunnels may modify the input motion for the seismic design of the aboveground structures. However, neither building codes nor seismic zonation guidelines have yet considered this matter. In this paper, the effects of an underground tunnel on the ground motion are numerically investigated, in terms of the peak ground acceleration and acceleration response spectrum. Compared with existing related studies, this paper goes further, considering obliquely incident seismic waves. The results indicate that the underground tunnel influences both the magnitude and distribution of the ground accelerations. The amplification of the peak ground accelerations due to the presence of the underground tunnel can be significant, and the amplification factors are functions of the incident angle of seismic waves.
2.5D Ground Motion Effects from Excitation of Underground Tunnels by Obliquely Incident Seismic Waves
In densely populated urban areas, the presence of underground tunnels may modify the input motion for the seismic design of the aboveground structures. However, neither building codes nor seismic zonation guidelines have yet considered this matter. In this paper, the effects of an underground tunnel on the ground motion are numerically investigated, in terms of the peak ground acceleration and acceleration response spectrum. Compared with existing related studies, this paper goes further, considering obliquely incident seismic waves. The results indicate that the underground tunnel influences both the magnitude and distribution of the ground accelerations. The amplification of the peak ground accelerations due to the presence of the underground tunnel can be significant, and the amplification factors are functions of the incident angle of seismic waves.
2.5D Ground Motion Effects from Excitation of Underground Tunnels by Obliquely Incident Seismic Waves
Lifelines 2022 ; 2022 ; Virtual Conference
Lifelines 2022 ; 66-79
16.11.2022
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Non-linear seismic responses of tunnels within normal fault ground under obliquely incident P waves
| British Library Online Contents | 2017
Non-linear seismic responses of tunnels within normal fault ground under obliquely incident P waves
| Online Contents | 2017