Controlling the seismic response of structures under near-field earthquakes with fluid/structure interaction of cylindrical liquid tanks

2019 ◽  
pp. 1-24 ◽  
Author(s):  
Zakariya Waezi ◽  
Nader K. A. Attari ◽  
Fayaz R. Rofooei
Keyword(s):  
Seismic Response ◽  
Near Field ◽  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Structure Interaction

Seismic Response Analysis of Free Long-Span Submarine Flexible Pipelines under Earthquakes

2014 ◽  
Vol 580-583 ◽  
pp. 1704-1707
Author(s):  
Yu Lin Deng ◽  
Yu Bian ◽  
Fan Lei
Keyword(s):  
Seismic Response ◽  
Fluid Structure Interaction ◽  
Time History ◽  
Response Analysis ◽  
Seismic Safety ◽  
Peak Displacement ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Finite Element Software ◽  
Long Span

Submarine pipelines are described as the lifeblood of offshore oil and it is crucial to ensure the seismic safety of the submarine pipelines. Based on the fluid-structure interaction numerical analysis method and by using finite element software ADINA, the analysis models of the free long-span submarine flexible pipelines under earthquakes were established. By employing dynamic time-history method, the influences of fluid-structure interaction on the seismic response of the submarine pipelines were researched. The results showed that the peak normal stress and the peak displacement of submarine pipelines’ mid-span considering the influences of the fluid-structure interaction are greater than those without considering the influences, and the influences of the fluid-structure interaction on the seismic response of the submarine pipelines will increase with the increase of the submarine pipelines‘ diameter.

Seismic response of fluid–structure interaction of undersea tunnel during bidirectional earthquake

2014 ◽  
Vol 75 ◽  
pp. 64-70 ◽  
Author(s):  
Xuansheng Cheng ◽  
Weiwei Xu ◽  
Caiquan Yue ◽  
Xiuli Du ◽  
Charles H. Dowding
Keyword(s):  
Seismic Response ◽  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Structure Interaction

Seismic Response Analysis of Large Liquid Storage Tank Considering Fluid-Structure Interaction

2011 ◽  
Vol 368-373 ◽  
pp. 983-987 ◽  
Author(s):  
Ling Xin Zhang ◽  
Xiao Jing Tan ◽  
Jie Ping Liu ◽  
Jiang Rong Zhong
Keyword(s):  
Seismic Response ◽  
Storage Tank ◽  
Design Theory ◽  
Fluid Structure Interaction ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Liquid Storage ◽  
Liquid Storage Tank

To large liquid storage tank, based on the potential flow theory, considering fluid-structure interaction, the potential-based elements and the shell elements are used to simulate the liquid and the tank, respectively. Using the displacement-velocity potential finite element method formulas, the seismic response analysis method of the liquid storage tank is obtained, and is implemented based on the ADINA program. Some useful conclusions of the tanks under the earthquake loadings are obtained through two examples, which provide the reference for the seismic design theory and the seismic performance, and provide the analysis approach for the damage behavior and loss assessment of liquid storage tank.

Seismic Response of Bridge Pier in Deep Water Considering close Fluid-Structure Interaction Effects

2011 ◽  
Vol 243-249 ◽  
pp. 1803-1810
Author(s):  
Zhi Hua Wang ◽  
Chong Shi Gu ◽  
Guo Xing Chen
Keyword(s):  
Seismic Response ◽  
Deep Water ◽  
Fluid Structure Interaction ◽  
Internal Force ◽  
Water Levels ◽  
Bridge Pier ◽  
Force Response ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Displacement Response

Based on the Navier-Stokes equations which are set up with the arbitrary Lagrange-Euler description, a finite element model considering close fluid-structure interaction (FST) is established to analyze the seismic response of bridge piers in the deep water. The influence of close FSI on the bridge pier is analyzed including the relative displacement, shear force and bending moment. In addition, the close FSI and its effects are discussed with respect to different water levels. The results of the case study indicate that the displacement and internal force will become larger obviously when the FSI is considered. Effects of the close FSI on seismic response of the pier are related to the frequency characteristics of the input earthquake wave. The larger the peak displacement of input earthquake wave, the larger the FSI effects on the displacement response of the pier are and the smaller the FSI effects on the internal force response of the pier. Additionally, the effect of the water level on internal force response of the pier is more remarkable than that on the displacement response of the pier.

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