Nonlinear seismic behaviour of wall-frame dual systems accounting for soil-structure interaction

2012 ◽  
Vol 41 (12) ◽  
pp. 1651-1672 ◽  
Author(s):  
Sandro Carbonari ◽  
Francesca Dezi ◽  
Graziano Leoni
Keyword(s):  
Soil Structure ◽  
Soil Structure Interaction ◽  
Dual Systems ◽  
Seismic Behaviour ◽  
Structure Interaction

scholarly journals Interactional Effect of the Influential Parameters on Seismic Behaviour of the Concrete Surface Tanks

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Alirezar Hassanpour Yasaghi ◽  
Mazhar Fatahi ◽  
Seyed Mehdi Seyed Alizadeh
Keyword(s):  
Friction Coefficient ◽  
Modulus Of Elasticity ◽  
Soil Structure ◽  
Friction Angle ◽  
Element Model ◽  
Soil Structure Interaction ◽  
Three Dimensional Model ◽  
Seismic Behaviour ◽  
Structure Interaction ◽  
Soil Modulus

Given to the importance of the tanks and their various applications in different industries, studying the seismic behaviour of these facilities is essential. In such structures, obtaining exact theoretical solution for the seismic behaviour of the tanks is very difficult due to the existence of the soil-structure interaction. In this study, seismic behaviour studying has been taken into account and in addition to considering three-dimensional model of finite element model of a surface rectangular tank and its beneath soil given to SSI and FSI effect, we have done required analysis and Drucker–Prager nonlinear model has been used to investigating more exactly to describe soil behaviour. Euler–Lagrange view with optional mesh displacement has been used for modelling tank-water interaction. According to the obtained results from this modelling, soil beneath the tank and soil-structure interaction affect highly on seismic behaviour of the surface tanks. Meanwhile, the response of the structure to the density changes and soil modulus of elasticity is more sensitive and changes in the coefficient of friction coefficient between the foundation surface and the soil and the internal friction angle do not have tangible effect on the response. The results reveal that the liquid containers response is more sensitive to the changes of the density and the soil modulus of elasticity more than friction coefficient between the surfaces and foundation and internal angle friction.

scholarly journals Seismic Behaviour of High-rise Frame-core Tube Structures Considering Dynamic Soil-Structure Interaction

2022 ◽  
Author(s):  
Xiaofeng Zhang ◽  
Harry Far
Keyword(s):  
Soil Structure ◽  
Design Method ◽  
Lateral Displacement ◽  
Building Design ◽  
Soil Structure Interaction ◽  
Seismic Behaviour ◽  
Earthquake Excitation ◽  
Core Tube ◽  
Structure Interaction ◽  
High Rise

Abstract As the population grows and land prices rise, high-rise buildings are becoming more and more common and popular in urban cities. Traditional high-rise building design method generally assumes the structure is fixed at the base, because the influence of soil-structure interaction is considered to be beneficial to the response of structures under the earthquake excitation. However, recent earthquakes and studies indicated that SSI may exert detrimental effects on commonly used structural systems. In this study, a numerical soil-structure model is established in Abaqus software to explore the impacts of SSI on high-rise frame-core tube structures. The seismic response of frame-core tube structures with various structural heights, height-width ratios, foundation types and soil types is studied. The numerical simulation results including maximum lateral deflections, foundation rocking, inter-storey drifts and base shears of rigid and flexible base buildings are discussed and compared. The results reveal the lateral displacement and inter-storey drifts of the superstructure can be amplified when SSI is taking into account, while the base shears are not necessarily reduced. Increasing the stiffness of the foundation and the subsoil can generally increase the seismic demand of structures. It has been concluded that it is neither safe nor economical to consider only the beneficial effects of SSI or to ignore them in structural design practice.

scholarly journals Effect of Soil Structure Interaction on Seismic Behaviour of Pile Supported Frame Buildings

2021 ◽  
pp. 853-859
Author(s):  
Karan Chejara ◽  
Dr. A. K. Verma ◽  
Dr. V. A. Arekar
Keyword(s):  
Seismic Response ◽  
Soil Structure ◽  
Numerical Study ◽  
Elastic Half Space ◽  
Soil Structure Interaction ◽  
Seismic Behaviour ◽  
Structure Interaction ◽  
High Rise ◽  
Fixed Base ◽  
Structure Height

Experiences from past earthquake disasters clearly shows that the ground motion was highly responsible for majority of property and life loss. Excessive damage was occurred to pile supported bridges, towers, chimneys, high rise structures, etc among the collapsed structures. A numerical study is carried out to understand the dynamic soil structure interaction of a high rise structure in a visco elastic half space in the presence of nearby pile supported structures. For understanding the seismic response of group of high rise structures supported on pile foundations a two dimensional study is carried. Framed structures which are assumed from the linear structures of different dynamic characteristics are supported on group of piles. Some studies related to group effect of structures supported on piles are considered like group of two identical structures, group of three identical structures and group of three different structures, secondly the effect of variability in structure height is considered like 5 storey structure, 10 storey structure and 15 storey structure and the third one in which the effect of variability in structure shape is considered. Above all case the effect of structure soil structure interaction on seismic response is compared with fixed base response.

Pushover Analysis of Buildings Considering Soil-Structure Interaction

2016 ◽  
Vol 857 ◽  
pp. 189-194 ◽  
Author(s):  
P.V. Joy ◽  
Bennet Kuriakose ◽  
Mini Mathew
Keyword(s):  
Seismic Design ◽  
Soil Structure ◽  
Pushover Analysis ◽  
Design Procedure ◽  
Structural Response ◽  
Soil Structure Interaction ◽  
Seismic Behaviour ◽  
Earthquake Excitation ◽  
Structure Interaction ◽  
Performance Based Seismic Design

Structural vulnerability of buildings to damage needs to be identified during the time of earthquake for reliable seismic design. Conventional linear elastic design methods cease to predict seismic damages in buildings. Pushover analysis is a popular displacement-based nonlinear structural analysis procedure employed to predict the seismic behaviour of structures. Generally, buildings are designed based on the assumption that they are fixed at their base, without considering the foundation as well as soil. But in reality, when a structure is subjected to an earthquake excitation, it interacts with the soil, influencing the structural response. In this study, a multi-bay building with different heights are modelled and analysed, duly considering Soil-Structure Interaction (SSI). The study can form foundation for rigorous performance-based seismic design procedure, considering the effect of soil beneath the structure.

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