Static interaction analysis between beam and layered soil using a two-parameter elastic foundation

Souad, Boudaa; Khalfallah, Salah; Bilotta, Emilio

doi:10.1007/s40091-019-0213-9

Cited by 21 publications

(12 citation statements)

References 24 publications

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“…The phenomenon of soil-structure interaction inundated the structural engineering domain by numerous studies. Under static loading, this effect is considered in a simplified way and becomes an evident task in computing phase (Boudaa & Khalfallah, 2019). These studies lead to clearly the importance of the soil-structure interaction to estimate real forces in structural members.…”

Section: Methodology Modeling Of the Super And Sub-structuresmentioning

confidence: 99%

Soil-structure interaction effects on the seismic performance of frame structures

Guerdouh

Khalfallah

2019

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In this work, a numerical attempt has been elaborated to study the effects of soil properties, seismic impact and interaction between frame structure and soil foundation. The frame, soil and interface continuum have been modeled by using the finite element concept. In this approach, a numerical program has been established based on the direct method to analyze the soil-structure interaction under seismic loading. Adding, the developed thinlayer interface element ensuring the incompatibility of degrees of freedom between frame and soil elements is incorporated. Obtained results lead to explain (1) the influence of the soil-structure interaction on the seismic response of the frame structure and interface media, (2) the time history deflection of the superstructure and interface medium under seismic loading, (3) the effect of the interaction factor of soil-structure interaction on the seismic behavior of the interface medium and frame structure and (4) the earthquake intensity on the seismic damage. Lateral displacements at the top of the frame and at the interface level, and shear stresses at the contact between the foundation and structure are plotted and commented.

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Section: Methodology Modeling Of the Super And Sub-structuresmentioning

confidence: 99%

Soil-structure interaction effects on the seismic performance of frame structures

Guerdouh

Khalfallah

2019

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“…However, this approach suffers a handicap due to discontinuity of the supporting medium and the neglect of shear deformations. To enhance this model, Boudaa [4] improved the one-parameter approach by taking into account shear deformations in the analysis. Also, Viladkar et al [5] presented a discrete interface element to study the soil and beam behaviour.…”

Section: Introductionmentioning

confidence: 99%

Effects and dynamic behaviour of soil - framed structure interaction

2022

JCE

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The effect and behaviour of soil - framed-structure interaction (SSI) under dynamic load conditions are presented in the paper. All civil engineering structures involve various types of structural elements that are in direct contact with soil. Hence, a new thin-layer interface element, based on the concept of the finite element method, is formulated. The formulation is elaborated using a combination of degrees of freedom of the top and bottom sides of the interface elements. The compatibility conditions of displacements between beam elements and quadrilateral soil elements are applied. Thus, a numerical program integrating the thin-layer interface element is developed for this purpose. The obtained results show that interaction between the soil and a framed structure has a considerable influence on the structural dynamic response of system components. Additionally, a parametric study has been elaborated to quantify the significance of interface behaviour on the soil and on the framed structure under dynamic load.

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“…One of the soil strengthening effective methods is the pressure cementation method [3,4]. As a result of the cement mortar pressure injection, compactingthe soil around the pile and under its lower end, which leads to an increase in the soil and pile contact interaction along the lateral surface and the soil resistance increase under the lower end [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Bearing capacity of piles in a reinforced by pressure cementation soil massif

Шакиров

2021

E3S Web Conf.

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Studies of the piles bearing capacity after strengthening soil by cement mortar pressure injection were carried out to determine pile foundations bearing capacity increasing patterns in a result of soils cementation. Depending from the volume and cement mortar technological injection parameters, the soil stress state around the pile changes, additional pile-soil compression occurs and the friction along the lateral surface increase, as well as the soil resistance under the pile bottom end. Cementation effect on the pile bearing capacity for different injectors location and the number of piles in the foundation were determined by tests. The research results can be used in the pile foundations reinforcement design in conditions of reconstruction with increasing loads on the foundations.

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Static interaction analysis between beam and layered soil using a two-parameter elastic foundation

Cited by 21 publications

References 24 publications

Soil-structure interaction effects on the seismic performance of frame structures

Soil-structure interaction effects on the seismic performance of frame structures

Effects and dynamic behaviour of soil - framed structure interaction

Bearing capacity of piles in a reinforced by pressure cementation soil massif

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