Influence of soil–structure interaction (structure-to-soil relative stiffness and mass ratio) on the fundamental period of buildings: experimental observation and analytical verification

Xiong, Wei; Jiang, Lizhong; Li, Yaozhuang

doi:10.1007/s10518-015-9814-2

Cited by 28 publications

(10 citation statements)

References 25 publications

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“…The results of their studies showed that the type of foundation is a major contributor to the seismic response of buildings with SSI. Xiong et al [4] investigated the influence of SSI on the dynamic characteristics of buildings. They carried out a series of free-vibration experiments on a scale-steel-frame structure.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Soil around the Basement Walls on the Base Level of Braced Framed Tube System

Barkhordari

Tehranizadeh

2018

CivileJournal

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According to the 2800 standard, the Iranian code of practice for seismic-resistant design of buildings, the base level refers to the level at which it is assumed that the horizontal movement of the ground is transmitted to the structure. In cases that there are reinforced concrete walls being run by an integrative structure in the underground perimeter, and the surrounding ground is dense and compressed, the base level is considered on the top of the basement wall. In tall structures, due to strong forces and moments at the foot of the structure, examining the location of base level and its movement becomes specially important. The aim of this study was to investigate the impact of changing the properties of the soil around the underground perimeter walls on the base level, taking into account the effects of soil-structure interaction systems. In this regard, the soil-structure system was investigated in two-dimensional models and the location of the base level was identified using shear and drift changes. The results indicated that taking into account the level of the upper stories is possible through performing appropriate walls integrated with the structure even without Compacting the soil around the structure.

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Section: Introductionmentioning

confidence: 99%

The Effect of Soil around the Basement Walls on the Base Level of Braced Framed Tube System

Barkhordari

Tehranizadeh

2018

CivileJournal

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“…As in many studies [16][17][18], it has been observed that the period of the structure increases in the acceptance of the SSI. Similarly, in this study, it has been observed that the building period increases in the SSI solutions (Figure 5).…”

Section: Research Resultsmentioning

confidence: 62%

Comparison of the effect of foundation analysis methods on structural analysis results of tall buildings

Ozer

Yüksel

2021

International Advanced Researches and Engineering Journal

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In structural analysis, there are serious interactions between soil-foundation and structure. The fixed base analysis method ignores this interaction but many analysis methods have been developed that take into account the soil-structure interaction (SSI). This paper revealed the effects of SSI analysis methods on tall buildings analysis results on soft soil sites. 6 different structural models with 20 story buildings and two different coefficients of subgrade reactions were analyzed with three different analysis methods which are fixed base method, Winkler method and pseudo-coupled method. As a result of all the analysis, 6 different structural models compared and discussed in terms of structural period, displacements, lateral loads, column, shear wall and foundation reactions and structural economy. It has been observed that the structure may remain on the unsafe side in the analysis made with the fixed base analysis method.

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“…In addition, Ref. [20] investigated the effects of SSI with series of free-vibration experiments on a 1/4-scale steel-frame structure by reproducing 34 scenarios under fixed-base and flexible-base conditions. Moreover, Ref.…”

Section: Introductionmentioning

confidence: 99%

A Novel Framework to Assess Soil Structure Interaction (SSI) Effects with Equivalent Fixed-Based Models

Forcellini

2021

Applied Sciences

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Soil structure interaction (SSI) effects have been extensively studied with advanced numerical simulations even if these approaches are time consuming and require much effort to perform. In particular, when SSI models are compared with fixed based ones, two main effects need to be considered: period elongation and damping increase. The paper proposes numerical models to build fixed based models calibrated on these two parameters and perform complex SSI analyses. A new framework that may be used to assess SSI with equivalent fixed-based models is herein presented and validated with non-linear dynamic numerical simulations. Opensees was performed to reproduce non-linear numerical simulations by considering hysteretic materials and advanced soil models.

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Influence of soil–structure interaction (structure-to-soil relative stiffness and mass ratio) on the fundamental period of buildings: experimental observation and analytical verification

Cited by 28 publications

References 25 publications

The Effect of Soil around the Basement Walls on the Base Level of Braced Framed Tube System

The Effect of Soil around the Basement Walls on the Base Level of Braced Framed Tube System

Comparison of the effect of foundation analysis methods on structural analysis results of tall buildings

A Novel Framework to Assess Soil Structure Interaction (SSI) Effects with Equivalent Fixed-Based Models

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