Dynamic behavior of elevated tanks with soil–structure interaction

2009 ◽  
Vol 31 (11) ◽  
pp. 2617-2629 ◽  
Author(s):  
Sekhar Chandra Dutta ◽  
Somnath Dutta ◽  
Rana Roy
Keyword(s):  
Dynamic Behavior ◽  
Soil Structure ◽  
Soil Structure Interaction ◽  
Structure Interaction ◽  
Elevated Tanks

On the apparent change in dynamic behavior of a nine-story reinforced concrete building

1987 ◽  
Vol 77 (6) ◽  
pp. 1961-1983
Author(s):  
J. E. Luco ◽  
M. D. Trifunac ◽  
H. L. Wong
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Behavior ◽  
Soil Structure ◽  
Interaction Effects ◽  
Soil Structure Interaction ◽  
Resonant Frequencies ◽  
Reinforced Concrete Building ◽  
Structure Interaction ◽  
Relative Contribution ◽  
Concrete Building

Abstract Apparent changes, over time, of the dynamic behavior of a nine-story reinforced concrete building are examined to determine their plausibility and possible sources. The apparent variations include changes of the resonant frequencies and of the relative contribution of the soil-structure interaction effects during forced vibration tests. Experiments by different researchers on the importance of the soil-structure interaction effects lead to conflicting interpretations of the contribution from the rocking response which differ by factors of 24 and 14 in the transverse and longitudinal directions. These differences are not realistic and may have resulted from errors in the data reduction for the initial experiments. The variations in resonant frequencies are considered to be mainly a result of stiffness degradation of the superstructure as a consequence of the San Fernando earthquake of 1971.

Experimental Research on Dynamic Behavior of the Masonry Pagoda Based on Soil-Structure Interaction

2014 ◽  
Vol 1079-1080 ◽  
pp. 212-219 ◽  
Author(s):  
Jian Li Yuan ◽  
Lei Rong ◽  
Hua Fan
Keyword(s):  
Physical Model ◽  
Dynamic Behavior ◽  
Soil Structure ◽  
Soil Structure Interaction ◽  
Effective Dimension ◽  
Structure Interaction ◽  
Fea Model ◽  
Key Factor ◽  
Influence Degree ◽  
Reduced Scale

Most of ancient pagodas were damaged by earthquakes, and the dynamic behavior is a key factor to determine the seismic strengthening scheme of the pagodas. This research selected a typical masonry pagoda as the object, combined free vibration test with numerical simulation to discuss the influence of dimension change of ground base on dynamic behavior of the pagoda, as well as the construction method of the FEA model based on the soil-structure interaction. The dynamic behavior tested from a 1:15 reduced scale of physical model indicated: comparing with the condition of pagoda pedestal is fixed, the natural frequency of the superstructure is decreasing with the increase of thickness of ground base，which shows the “soft effect” of ground soil to structural stiffness. The influence degree of thickness and plan size of ground base to dynamic behavior of the physical model are simulated by program ANSYS, and the effective dimension range of ground base for the FE analysis of pagodas has been proposed.

Sign in / Sign up

Export Citation Format

Share Document