Analysis of the Effect of Soil-Structure Interaction on the Response of Railway Bridges using Boundary Element - Finite Element Methods

As an effective way of passive damping, isolation technology has been widely used in all types of building structures. Currently, for its theoretical analysis, it usually follows the rigid foundation assumption and ignores soil-structure interaction, which results in calculation results distortion in conducting seismic response analysis. In this paper, three-dimensional finite element method is used to establish finite element analysis model of large chassis single-tower base isolation structure which considers and do not consider soil-structure interaction. The calculation results show that: after considering soil-structure interaction, the dynamic characteristics of the isolation structure, and seismic response are subject to varying degrees of impact.

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Effect of Pile-Soil-Structure Interaction on the Cable-Stayed Bridge in Response to the Earthquake

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.539.731 ◽

2014 ◽

Vol 539 ◽

pp. 731-735 ◽

Cited By ~ 1

Author(s):

Yu Chen

Keyword(s):

Finite Element ◽

Seismic Response ◽

Soil Structure ◽

Response Spectrum ◽

Three Dimensional ◽

Soil Structure Interaction ◽

Structure Interaction ◽

Finite Element Software ◽

Cable Stayed Bridge ◽

Three Dimensional Finite Element

In this thesis, based on the design of a 140+90m span unusual single tower and single cable plane cable-stayed bridge, free vibration characteristics and seismic response are investigated; three dimensional finite element models of a single tower cable-stayed bridge with and without the pile-soil-structure interaction are established respectively by utilizing finite element software MIDAS/CIVIL, seismic response of Response spectrum and Earthquake schedule are analyzed respectively and compared. By the comparison of the data analysis, for small stiffness span cable-stayed bridge, the pile-soil-structure interaction can not be ignored with calculation and analysis of seismic response.

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Computer Simulation of the Shaking Table Tests on Harder Soil-Structure Interaction System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.261-263.1619 ◽

2011 ◽

Vol 261-263 ◽

pp. 1619-1624

Author(s):

Pei Zhen Li ◽

Jing Meng ◽

Peng Zhao ◽

Xi Lin Lu

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Soil Structure ◽

Shaking Table Test ◽

Shaking Table ◽

Soil Structure Interaction ◽

Shaking Table Tests ◽

Site Condition ◽

Element Analysis ◽

Structure Interaction

Shaking table test on soil-structure interaction system in harder site condition is presented briefly in this paper. Three-dimensional finite element analysis on shaking table test is carried out using ANSYS program. The surface-to-surface contact element is taken into consideration for the nonlinearity of the state of the interface of the soil-pile and an equivalent linear model is used for soil behavior. By comparing the results of the finite element analysis with the data from shaking table tests, the computational model is validated. Based on the calculation results, the paper gives the seismic responses under the consideration of soil-structure interaction in harder site condition, including acceleration response, contact analysis on soil pile interface and so on.

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