Numerical investigations of structure-soil-structure interaction in buildings

Bolisetti, Chandrakanth; Whittaker, Andrew S.

doi:10.1016/j.engstruct.2020.110709

Cited by 32 publications

(25 citation statements)

References 16 publications

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“…As shown in Figure 10A, the effects of adjacent buildings for the 5-story building are generally less than 10% compared to the SSI model and can be ignored for the SSSI cases. This is consistent with the findings of some previous studies 12,85 for identical surface-founded low-to medium-rise structures. As depicted in Figure 10B, the SSSI effects are more noticeable for taller and heavier building groups.…”

Section: Effects Of Tsssi Sssi and Comparisons Involving Three Buildingssupporting

confidence: 93%

“…28,31,33,36,[88][89][90] Arrangement of adjacent structures in the 3D multibuilding SSSI is one of the important factors that can influence the seismic performance of buildings compared with the 2D arrangement of buildings. 12,26,30,91 In order to investigate the 2D and 3D effects of SSSI, in this study, the 1×2 (see Figure 3D without the 3 rd building) and 2×2 (Figure 4D) groups of adjacent buildings were modeled, respectively, through the 3D nonlinear finite element SSSI and TSSSI analysis. Figure 15 illustrates the acceleration time history of the 10-story building roof subject to the 1986 Taiwan SMART earthquake in the 3D and 2D arrangement of adjacent similar buildings.…”

Section: The and 3d Arrangements Of Buildingsmentioning

confidence: 99%

“…Previous studies on the SSSI effects demonstrated that the effects of the proximity of buildings to each other could not be neglected, and the responses of adjacent buildings were functions of the natural periods of a system and the distance between structures. [10][11][12][13] For buildings near a slope, when the incoming seismic waves encounter the slope, P and SV waves are reflected from the slope surface, and their interaction of these two waves generates Rayleigh waves near the ground surface adjacent to the crest. The newly created waves lead to the generation of additional vertical components of motion and affect the rocking motions of buildings.…”

Section: Introductionmentioning

confidence: 99%

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Slope topographic effects on the nonlinear seismic behavior of groups of similar buildings

Shamsi

Shabani

Zakerinejad³

et al. 2022

Earthq Engng Struct Dyn

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The occurrence of vibrational energy exchange between neighboring buildings via soil is a well-known issue today as structure-soil-structure interaction (SSSI) problems. Furthermore, the seismic performance of buildings near the slopes considering seismic topography-soil-structure interaction (TSSI) is entirely different from their performance on the flat grounds considering seismic soilstructure interaction (SSI). Therefore, this study evaluates the seismic response of three moments resistant frame steel buildings with 15, 10, and 5 stories using three dimensional numerical analysis as a new topography-structure-soilstructure interaction (TSSSI) problem. This issue has not been investigated in previous studies to the best of the authors' knowledge. In each case of TSSSI, two, three, and four buildings with similar dynamic properties were simulated simultaneously. The effects of foundation's rocking, numbers of buildings, and the 2D and 3D arrangements of buildings were investigated, and the results of TSSSI cases were compared with the corresponding SSSI cases. The inelastic behavior for both building components and soil was considered in the simulations. Analyzes are performed based on seven earthquake records from which the average value was taken as final results. Results show that it is essential to consider the TSSSI effect, and it can completely change the seismic performance of buildings near the slopes. Although the effects of TSSI and SSSI on the seismic responses of the low-rise similar structures are negligible relative to the SSI cases, the results show that the nonlinear TSSSI effects of adjacent buildings should be fully considered even for 5-story low-rise structures.

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Section: Effects Of Tsssi Sssi and Comparisons Involving Three Buildingssupporting

confidence: 93%

Section: The and 3d Arrangements Of Buildingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Slope topographic effects on the nonlinear seismic behavior of groups of similar buildings

Shamsi

Shabani

Zakerinejad³

et al. 2022

Earthq Engng Struct Dyn

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show abstract

“…In addition, the soil−structure interaction usually is not considered in pipeline and box culverts designs, where the applied pressure above the pipeline and the box culvert is assumed to be equivalent to the geostatic load, which is the earth prism weight measured above the pipeline or the box culvert (Pimentel et al, 2009 [7]). As the soil−structure interaction is challenging to experimentally estimate, several studies have efficiently exploited numerical tools such as finite element modeling and artificial intelligence to predict the effect of the soil−structure interaction for various structural types [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Therefore, the soil−structural interaction should be included in the pipeline and culvert design in order to estimate the structural response of such infrastructures accurately.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Structural Performance of Buried Reinforced Concrete Pipelines in Cohesionless Soils

et al. 2022

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Pipelines are widely used to transport water, wastewater, and energy products. However, the recently published American Society of Civil Engineers report revealed that the USA drinking water infrastructure is deficient, where 12,000 miles of pipelines have deteriorated. This would require substantial financial investment to rebuild. Furthermore, the current pipeline design practice lacks the guideline to obtain the optimum steel reinforcement and pipeline geometry. Therefore, the current study aimed to fill this gap and help the pipeline designers and practitioners select the most economical reinforced concrete pipelines with optimum steel reinforcement while satisfying the shear stresses demand and serviceability limitations. Experimental testing is considered uneconomical and impractical for measuring the performance of pipelines under a high soil fill depth. Therefore, a parametric study was carried out for reinforced concrete pipes with various diameters buried under soil fill depths using a reliable finite element analysis to execute this investigation. The deflection range of the investigated reinforced concrete pipelines was between 0.5 to 13 mm. This indicates that the finite element analysis carefully selected the pipeline thickness, required flexural steel reinforcement, and concrete crack width while the pipeline does not undergo excessive deformation. This study revealed that the recommended optimum reinforced concrete pipeline diameter-to-thickness ratio, which is highly sensitive to the soil fill depth, is 6.0, 4.6, 4.2, and 3.8 for soil fill depths of 9.1, 12.2, 15.2, and 18.3 m, respectively. Moreover, the parametric study results offered an equation to estimate the optimum pipeline diameter-to-thickness ratio via a design example. The current research outcomes are imperative for decision-makers to accurately evaluate the structural performance of buried reinforced concrete pipelines.

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“…The results pointed out to considerable drop in buildings base motion at frequencies above the natural frequencies of the building-foundation systems. Likewise, both detailed numerical analyses and a set of centrifuge experiments have been employed by Bolisetti and Whittaker (2020) in order to investigate the effect of (SSSI) on three arrangements of low-to medium-rise frame buildings. They concluded that the existence of deep vault reduces uplift in the foundations and the peak spectral accelerations at the roof.…”

Section: Introductionmentioning

confidence: 99%

Effect of Structure-Soil-Structure Interaction (SSSI) between Three Dissimilar Adjacent Bridges

Alfach

Ayoub

2021

Preprint

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The present study assesses the effect of Structure-Soil-Structure-Interaction (SSSI) on the seismic behavior of three dissimilar adjacent bridges by comparing their seismic responses with the seismic response of the isolated bridge including Soil-Structure-Interaction (SSI). To this end, an extensive series of numerical analyses have been carried out to elicit the effects of Structure-Soil-Structure-Interaction (SSSI) on the seismic behavior of three dissimilar bridges with different superstructure masses. The studied bridges are based on groups of piles founded in nonlinear clay. A parametric study has been performed for configurations of three dissimilar bridges with superstructure masses ratios of 200% and 300%, concentrating on the influence of the inter-bridge spacing, and the geometrical position of the bridges towards each other and towards the seismic excitation direction. The numerical analyses have been conducted using a three-dimensional finite difference modeling software FLAC 3D (Fast Lagrangian analysis of continua in 3 dimensions). The results of the numerical simulations clearly show that the seismic responses of the dissimilar grouped bridges were strongly influenced by the neighboring bridges. In particular, the results reveal a salient positive impact on the acceleration of the superstructure by a considerable drop (up to 90.63%) and by (up to 91.27%) for the internal forces induced in the piles. Comparably, the influence of bridge arrangement towards the seismic loading were prominent on both of superstructure acceleration and the internal forces in the piles. The responses were as much as 27 times lesser for the acceleration and 11 times smaller for the internal forces than the response of the isolated bridge. Contrarily, the inter-bridge spacing has a limited effect on the seismic response of the grouped bridges.

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Numerical investigations of structure-soil-structure interaction in buildings

Cited by 32 publications

References 16 publications

Slope topographic effects on the nonlinear seismic behavior of groups of similar buildings

Slope topographic effects on the nonlinear seismic behavior of groups of similar buildings

Optimization of the Structural Performance of Buried Reinforced Concrete Pipelines in Cohesionless Soils

Effect of Structure-Soil-Structure Interaction (SSSI) between Three Dissimilar Adjacent Bridges

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