Evaluation on Seismic Ground Motion Characteristics at Micro-Relief in the Subtropical Small Island.

2001 ◽  
pp. 251-260
Author(s):  
Yoshinari MATSUSHIMA ◽  
Tetsuya YABUKI ◽  
Yasunori ARIZUMI
Keyword(s):  
Ground Motion ◽  
Small Island ◽  
Seismic Ground Motion ◽  
Motion Characteristics

Probabilistic estimates of the seismic ground motion hazard in western Saudi Arabia, Kingdom of Saudi Arabia

1987 ◽  
Author(s):  
P.C. Thenhaus ◽  
S.T. Algermissen ◽  
D.M. Perkins ◽  
S.L. Hanson ◽  
W.H. Diment
Keyword(s):  
Saudi Arabia ◽  
Ground Motion ◽  
Kingdom Of Saudi Arabia ◽  
Seismic Ground Motion

Dynamic Characteristics of Base-Isolated Steel Frame under Seismic Ground Motion

2011 ◽  
Vol 255-260 ◽  
pp. 2341-2344
Author(s):  
Mohammad Saeed Masoomi ◽  
Siti Aminah Osman ◽  
Ali Jahanshahi
Keyword(s):  
Ground Motion ◽  
Base Isolation ◽  
Time History ◽  
Steel Structure ◽  
Steel Structures ◽  
Steel Frame ◽  
Nonlinear Time History Analysis ◽  
Seismic Load ◽  
Vector Method ◽  
Seismic Ground Motion

This paper presents the performance of base-isolated steel structures under the seismic load. The main goals of this study are to evaluate the effectiveness of base isolation systems for steel structures against earthquake loads; to verify the modal analysis of steel frame compared with the hand calculation results; and development of a simulating method for base-isolated structure’s responses. Two models were considered in this study, one a steel structure with base-isolated and the other without base-isolated system. The nonlinear time-history analysis of both structures under El Centro 1940 seismic ground motion was used based on finite element method through SAP2000. The mentioned frames were analyzed by Eigenvalue method for linear analysis and Ritz-vector method for nonlinear analysis. Simulation results were presented as time-acceleration graphs for each story, period and frequency of both structures for the first three modes.

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