Equivalent Linear Model for Existing Soil-Structure Systems

Sameti, A. Rezaei; Ghannad, Mohammad Ali

doi:10.1142/s0219455414500990

Cited by 10 publications

(4 citation statements)

References 15 publications

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“…In fact, due to the properties of the soil and the effect of the site on the earthquake wave, the behavior of the structure will be different. An important and key issue in the behavior of the structure is the discussion of the interaction between structure and soil [1]. To increase the reliability and accuracy in the design of structures, the effects of the interaction between the soil and the structure should be considered [2].…”

Section: Introductionmentioning

confidence: 99%

Study of the Impact Irregular Concrete Facilities with the Shear Walls Based: The Effect of Soil-Structure Interaction with ABAQUS Software

Wisam Fawzi Aljuhaishi,

Javad Esfandiari

2024

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In the present study, the effect of irregularity of structures of the concrete with special shear walls has been analyzed and modeled by considering the effect of soil-structure interaction by dynamic analysis method with ABAQUS software. The results are presented in the form of diagrams with different soil interaction conditions, the effect of the number of layers was investigated for different soils. The results showed that the bearing system of the flexural frame and the concrete shear wall under the lateral load of the earthquake have good strength and ductility, which makes this issue. This structural system should be used for cities with very high earthquake risk. As the number of floors increases, the effect of the shear walls on increasing the bearing capacity decreases. As the number of floors increases, the final displacement of the frame increases. The results showed that for soil type 1(hard soil which Vs=1000 m/s, v=0.15, q=50000 Kg/m2, P=2000 Kg/m3, r=0.5 m) structural system of concrete shear walls with better displacement, maximum structural stiffness, better behavior was observed in the structure. Three-story frame with concrete shear wall has a significant increase compared to similar frames with more floors, which shows the good performance of this system in structures with fewer floors.

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Section: Introductionmentioning

confidence: 99%

Study of the Impact Irregular Concrete Facilities with the Shear Walls Based: The Effect of Soil-Structure Interaction with ABAQUS Software

Wisam Fawzi Aljuhaishi,

Javad Esfandiari

2024

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“…Dealing with simplified geometries, numerous studies solved the soil-pile-structure interaction through systems that adopt the Winkler method and numerical techniques [2][3][4][5][6][7][8]. However, the use of numerical models becomes a unique alternative solution when the systems are non-linear or have a 3D geometry.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Soil–Structure Interaction Effects in Buildings Founded on Vertical Reinforcement Elements

Jiménez

Dias

2022

CivilEng

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Pile foundation is an effective technique to support buildings in the presence of soft soil and seismic areas. More recently, the rigid inclusions system has also been utilized for founding buildings. Both systems increase the bearing capacity of the soil and allow reducing the total and differential settlements in the structure. However, the study of these systems in a complete and accurate way implies the consideration of the soil–structure interaction (SSI). In order to investigate the impact of different pile toe conditions (including the placement on hard soil, an anchorage and floating piles) in the response of mid-rise buildings, numerical models with a 5-storey frame building founded on the inclusions system (soil–inclusion–platform–structure) are analyzed and compared with the pile system (soil–pile–structure). Fully coupled finite difference numerical models were developed using Flac 3D. The influence of the dynamic characteristics of the structure was considered analyzing buildings with different heights (3 storeys to 7 storeys). The linear elastic perfectly plastic model with a Mohr–Coulomb failure criterion is used to represent the behavior of the soil. Values of the maximum lateral displacements, of the inter-storey drifts and of the shear forces distribution in the buildings, as well as the rocking of the foundation, are presented. Concerning the foundations, efforts and displacements are compared for the different systems. The results show that the type of support condition influences the seismic response of the building and the efforts and displacements in the rigid elements, depending on the foundation system. The efforts at the toe level in the rigid elements are highly influenced by the support conditions, but there is only a slight influence from the head connection.

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“…According to Gazetas et al, 2001, ground motions at soft soil sites are typically defined by long predominant periods and result in resonance condition for period-lengthening with fixed based period less than predominant period. Although, the study on seismic response of mid-rise building assuming nonlinear SSI has been carried out (Adam et al, 2016) and Numerical methods have also been used for analysis of SSI (Sbartai, 2015;Sameti et al, 2014;Chen, 2015) but the study on the response on building cluster and specially mixed group of small and large buildings has been limited.…”

Section: Introductionmentioning

confidence: 99%

Analyse the effect of Soil Structure Interaction on Seismic Response of Building Cluster by Variation in Soil and Building Properties

Srivastava¹,

Kumar²

2022

JER is an international, peer-reviewed journal that publishes f

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The seismic response of a building is dependent on the foundation flexibility, soil properties as well as the interaction between the soil and structure. The frequency and amplitude of the seismic response depends on the soil properties. For simpler calculations, the soil is usually assumed to be rigid which is unrealistic mostly. The buildings are designed on basis of idealized conditions taking fixed base or on Winkler foundations. Until recently, the efforts to ascertain the effect of Soil-Foundation-Structure Interaction (SFSI) on the response of structure have been limited. This study aims at investigating the nature of soil-structure interaction and investigate the effect on the response of building owing to variation in soil stiffness, depth of foundation and building mass ratio using numerical method. The analysis shows that the response of building cluster decreases with increase in soil stiffness. Heterogeneous cluster proved better during earthquake than homogenous cluster. The results indicated that the soil and building properties have major influence on the dynamic response of building cluster and thus may be given due consideration during design and seismic analysis.

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Equivalent Linear Model for Existing Soil-Structure Systems

Cited by 10 publications

References 15 publications

Study of the Impact Irregular Concrete Facilities with the Shear Walls Based: The Effect of Soil-Structure Interaction with ABAQUS Software

Study of the Impact Irregular Concrete Facilities with the Shear Walls Based: The Effect of Soil-Structure Interaction with ABAQUS Software

Dynamic Soil–Structure Interaction Effects in Buildings Founded on Vertical Reinforcement Elements

Analyse the effect of Soil Structure Interaction on Seismic Response of Building Cluster by Variation in Soil and Building Properties

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