Numerical simulation for large-scale seismic response analysis of immersed tunnel

2006 ◽  
Vol 28 (10) ◽  
pp. 1367-1377 ◽  
Author(s):  
Jun-Hong Ding ◽  
Xian-Long Jin ◽  
Yi-Zhi Guo ◽  
Gen-Guo Li
Keyword(s):  
Numerical Simulation ◽  
Seismic Response ◽  
Large Scale ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Immersed Tunnel

Elasto-Plastic Analysis of Seismic Response of Valve-Hall Structure with Suspension Valves of Large-Scale Converter Station

2011 ◽  
Vol 94-96 ◽  
pp. 1941-1945
Author(s):  
Yi Wu ◽  
Chun Yang ◽  
Jian Cai ◽  
Jian Ming Pan
Keyword(s):  
Seismic Response ◽  
Large Scale ◽  
Seismic Waves ◽  
Tensile Force ◽  
Response Analysis ◽  
Vertical Acceleration ◽  
Seismic Responses ◽  
Seismic Response Analysis ◽  
Finite Element Software ◽  
Plastic Analysis

Elasto-plastic analysis of seismic responses of valve hall structures were carried out by using finite element software, and the effect of seismic waves on the seismic responses of the valve hall structures and suspension equipments were studied. Results show that significant torsional responses of the structure can be found under longitudinal and 3D earthquake actions. Under 3D earthquake actions, the seismic responses of the suspension valves are much more significant than those under 1D earthquake actions, the maximum tensile force of the suspenders is about twice of that under 1D action. The seismic responses of the suspension valves under vertical earthquake actions are much stronger than those under horizontal earthquake actions, when suffering strong earthquake actions; the maximum vertical acceleration of the suspension valves is about 4 times of that under horizontal earthquake actions. It is recommended that the effects of 3D earthquake actions on the structure should be considered in seismic response analysis of the valve hall structure.

Seismic Response Analysis of Large-Scale Site with Circular Diaphragm Wall

2014 ◽  
Vol 607 ◽  
pp. 735-738
Author(s):  
Ru Lin Zhang ◽  
Wen Dong Yang ◽  
Feng Sun
Keyword(s):  
Seismic Response ◽  
Large Scale ◽  
Large Diameter ◽  
Free Field ◽  
Ground Surface ◽  
Diaphragm Wall ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Soil Site ◽  
Circular Diaphragm

The seismic response analysis of project soil site is important to obtain the ground motion parameters for seismic design of upper structures. First, a simplified solving method is introduced, in which, the horizontal seismic loadings are expanded into Fourier series in the circumferential direction, using the orthogonality between the normal and tangential direction on the circumference, the three-dimensional problem is reduced to a series of two-dimensional problems. Then, the simplified method is used for seismic response analysis of a practical large-scale soil site with large diameter circular diaphragm wall. The influence of wall to the site is obtained through two field conditions, which are wall field and free field (without wall). Compare with the results of the site without wall, the peak acceleration of the pit bottom is increased owing to the confinement effect of wall, and the influence to ground surface far from the wall is very little.

Sign in / Sign up

Export Citation Format

Share Document