Dynamic Behaviour of Shallow Foundation Using Macro-Element Approach

2017 ◽  
Author(s):  
Abdulsamee Halahla ◽  
Francesco Calvetti
Keyword(s):  
Dynamic Behaviour ◽  
Shallow Foundation ◽  
Element Approach ◽  
Macro Element

A macro-element approach to analyse bridge abutments accounting for the dynamic behaviour of the superstructure

Géotechnique ◽  
2020 ◽  
Vol 70 (8) ◽  
pp. 711-719 ◽  
Author(s):  
Davide Noè Gorini ◽  
Luigi Callisto
Keyword(s):  
Dynamic Behaviour ◽  
Bridge Abutments ◽  
Element Approach ◽  
Macro Element

A macro-element for the modelling of shallow foundation deformations under seismic load

2018 ◽  
Vol 106 ◽  
pp. 101-112 ◽  
Author(s):  
M.D.L. Millen ◽  
M. Cubrinovski ◽  
S. Pampanin ◽  
A. Carr
Keyword(s):  
Shallow Foundation ◽  
Seismic Load ◽  
Macro Element

scholarly journals A Macro-element for Modeling the Non-linear Interaction of Soil-shallow Foundation under Seismic Loading

2020 ◽  
Vol 6 (4) ◽  
pp. 714-723
Author(s):  
Van Quan Huynh ◽  
Xuan Huy Nguyen ◽  
Trung Kien Nguyen
Keyword(s):  
Seismic Behavior ◽  
Seismic Loading ◽  
Shallow Foundation ◽  
Shaking Table ◽  
Integration Scheme ◽  
Single Element ◽  
Maximum Acceleration ◽  
Linear Interaction ◽  
Macro Element ◽  
Soil Foundation

This paper presents a macro-element for simulating the seismic behavior of the soil- shallow foundation interaction. The overall behavior in the soil and at the interface is replaced by a macro-element located at the base of the superstructure. The element reproduces the irreversible elastoplastic soil behavior (material non-linearity) and the foundation uplift (geometric non-linearity) at the soil- foundation interface. This new macro-element model with three degrees-of-freedom describes the force-displacement behavior of the footing center. The single element is restrained by the system of equivalent springs and dashpots. The footing is considered as a rigid body. It is solved by a suitable Newmark time integration scheme and implemented in Matlab to simulate the nonlinear behavior of soil-shallow foundation interaction under seismic loading. A reduce scaled soil-foundation system has been tested on a shaking table at the University of Transport and Communications, Hanoi, Vietnam. Five series of earthquake motions were used with maximum acceleration increased from 0.5  to 2.5 . The comparison of numerical results obtained from the simulation and experimentations shows the satisfactory agreement of the model. The proposed macro-element can be used to predict the seismic behavior of a wider variety of configurations.

General Formulation of the Macro Element Approach

2001 ◽  
pp. 93-104
Author(s):  
Jorge A. C. Ambrosio
Keyword(s):  
Element Approach ◽  
Macro Element
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