scholarly journals Anti-symmetric mode excitation and seismic response of base-isolated bridges under asynchronous input motion

2018 ◽  
Vol 113 ◽  
pp. 148-161 ◽  
Author(s):  
Savvas P. Papadopoulos ◽  
Anastasios G. Sextos
Keyword(s):  
Seismic Response ◽  
Symmetric Mode ◽  
Mode Excitation ◽  
Input Motion ◽  
Isolated Bridges

Seismic Response Analyses of Isolated Bridges with Different Isolation Bearings

2012 ◽  
Vol 446-449 ◽  
pp. 1132-1137
Author(s):  
Shuai Wang ◽  
Liu Han Wen Heisha ◽  
Fang Yu ◽  
Guo Xiang Wang
Keyword(s):  
Seismic Response ◽  
Isolated Bridges

Analysis of Topographic Effects in Dynamic Response of a Typical Rocky Populated Slope in Lima, Peru

2014 ◽  
Vol 9 (6) ◽  
pp. 946-953 ◽  
Author(s):  
Carlos Gonzales ◽  
◽  
Shoichi Nakai ◽  
Toru Sekiguchi ◽  
Diana Calderon ◽  
...  
Keyword(s):  
Seismic Response ◽  
Element Model ◽  
Target Area ◽  
Topographic Effects ◽  
Rocky Slope ◽  
Megathrust Earthquakes ◽  
Short Period ◽  
Plain Strain ◽  
The Time Domain ◽  
Input Motion

A currently populated slope in the northeast part of the city of Lima was selected as the target area of this study, with the aim of analyzing the influence of topography on its seismic response. A finite element model was constructed using soil information obtained by microtremor arraymeasurements conducted in flat and sloping areas, and solved for plain strain conditions in the time domain using an input motion developed for the most critical slip model of a simulation for megathrust earthquakes. Results showed that for this typical rocky slope, topographic effects do not have a significant influence on its seismic response, except for areas close to the foot of the slope where, even if soil vibration is restricted, an amplification of the seismic motion is still expected for short period structures.

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