Seismic Analysis of Pile Foundation Passing Through Liquefiable Soil

2020 ◽  
pp. 539-553
Author(s):  
Musabur Rehman ◽  
S. M. Abbas
Keyword(s):  
Pile Foundation ◽  
Seismic Analysis ◽  
Liquefiable Soil

Seismic analysis of pile foundation in soft soils subjected to earthquake loading

2003 ◽  
Vol 87 (6) ◽  
pp. 73-79
Author(s):  
Kwang-han Lee ◽  
Si-seong Jeong ◽  
Hee-joong Son
Keyword(s):  
Pile Foundation ◽  
Seismic Analysis ◽  
Earthquake Loading ◽  
Soft Soils

Study on Lateral Dynamic Response of Pile Foundation in Liquefiable Soil by Using FBG Method

2012 ◽  
Vol 238 ◽  
pp. 337-340 ◽  
Author(s):  
Yu Run Li ◽  
Yan Liang ◽  
Xing Wei ◽  
Yun Long Wang ◽  
Zhen Zhong Cao
Keyword(s):  
Dynamic Response ◽  
Data Acquisition ◽  
Pile Foundation ◽  
Maximum Stress ◽  
Shaking Table Test ◽  
Data Acquisition System ◽  
Seismic Damage ◽  
Shaking Table ◽  
Calculation Methods ◽  
Liquefiable Soil

The study on lateral dynamic response of pile foundation in liquefiable soil is a significant part about seismic damage. In this paper, a new data acquisition system of FBG and calculation methods is used in the small shaking table test. The results show that FBG method used in this test is proved to be efficient and acceptable in both time characteristics and precision characteristics, it may be widely applied in the future doubtlessly. What’s more, the characteristics of p-y curves in different peak accelerations are discussed. And varying of maximum stress and displacement by corresponding acceleration is discussed. A contrast about p-y curve between dry sand and saturate sand is related, which provides a new direction in research about p-y curve.

Seismic analysis of infinite pile groups in liquefiable soil

2004 ◽  
Vol 24 (8) ◽  
pp. 565-575 ◽  
Author(s):  
Assaf Klar ◽  
Sam Frydman ◽  
Rafael Baker
Keyword(s):  
Seismic Analysis ◽  
Pile Groups ◽  
Liquefiable Soil

Study of Ground Lateral Flow on Piles Foundation due to Soil Liquefaction

2011 ◽  
Vol 415-417 ◽  
pp. 1478-1481
Author(s):  
Wei Wei Yu ◽  
Xuan Guo
Keyword(s):  
Case Studies ◽  
Pile Foundation ◽  
Soil Liquefaction ◽  
Lateral Flow ◽  
Distributed Load ◽  
Liquefiable Soil ◽  
Calculated Stress ◽  
Stress And Deformation ◽  
Good Agreement

The case studies on the damaged pile foundation caused by lateral flow due to soil liquefaction during the big earthquake were discussed. The distributed load method was utilized to calculate the stress and displacement. The effect of the lateral flow to pile foundation in liquefiable soil also is simulated. Through compared the analysis result to the site dig-investigate report, the mechanism of the damaged pile modes were conjectured very well. the calculated stress and deformation of piles indicated good agreement with the actually observed one. The practicability and availability of the distributed load method was substantiated.

scholarly journals Seismic bridge pier analysis for pile foundation by force and displacement based approaches

2015 ◽  
Vol 13 (2) ◽  
pp. 155-166
Author(s):  
NP.R. Singh ◽  
Hemant Vinayak
Keyword(s):  
Pile Foundation ◽  
Seismic Analysis ◽  
Slenderness Ratio ◽  
Soft Soil ◽  
Time History ◽  
Bridge Pier ◽  
Base Shear ◽  
Displacement Based ◽  
Shear Demand ◽  
Analytical Approaches

Seismic analysis of bridge pier supported on pile foundation requires consideration of soil-pile-structure (kinematic and inertial) interactions. This paper presents the design forces generated for bridge piers with varying height and constant diameter for medium and soft soils in earthquake probability zones considering contribution of soil-pile-structure interactions by developed analytical approaches. The results have shown that the difference in base shear demand between force based and displacement based approach and that between capacity spectrum and displacement based method in general decreases with the increase in slenderness ratio of the pier. The base shear demand by non-linear time history analysis has been found to be much higher compared to that by other methods. The relationship between height and pier cross-section has been developed for different soils and seismic zones such that the base shear demands by force based and displacement based method are of the same order. The overall value of the slenderness ratio works out to be such that failure of the pile shall be as a short column for both medium and soft soil.

Pushover Analysis of Pile-Supported Bridge Piers

2013 ◽  
Vol 681 ◽  
pp. 234-239
Author(s):  
Chang Feng Wang ◽  
Yi Jun Bao
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Pile Foundation ◽  
Seismic Analysis ◽  
Pushover Analysis ◽  
Element Model ◽  
Vertical Force ◽  
Skeleton Curve ◽  
Seismic Design Code ◽  
Rare Earthquake

According to Japan Railway seismic design code, truss finite element model is established considering the pile components and foundation nonlinear finite element model in this paper, an analysis on the ultimate horizontal bearing capacity of bridge pile foundation of passenger dedicated line is made and the results of m-method calculation are compared. The analysis results show that: when horizontal force at the top of pier is larger, with the pile side soil horizontal and vertical force continuously into the plastic, the calculation results differ greatly with two seismic specification; the pier top level force-displacement skeleton curve considered pile-soil interaction is available in trilinear description, the analysis results can provide a theoretical basis for the seismic analysis of the pile foundation under rare earthquake.

Seismic analysis of the pile foundation of the reactor building of the NPP Angra 2

1981 ◽  
Vol 65 (3) ◽  
pp. 329-341 ◽  
Author(s):  
J.P. Wolf ◽  
G.A. von Arx ◽  
F.C.P. de Barros ◽  
M. Kakubo
Keyword(s):  
Pile Foundation ◽  
Seismic Analysis ◽  
Reactor Building
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