Effect of open-ground storey on RC frame buildings incorporating soil–structure interaction

Tasleem, Md.; Firoj, Mohd; Bahuguna, Ashish

doi:10.1007/s42107-022-00435-x

Cited by 7 publications

(3 citation statements)

References 22 publications

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“…Recent studies 3–15 have incorporated the SSI effect in the dynamic analysis of structures. For instance, Hokmabadi et al 16 discussed the SSI effect on deep foundations through shaking table tests on 5, 10, and 15‐storey buildings.…”

Section: Introductionmentioning

confidence: 99%

Analytical plasticity‐based model for soil–structure interaction of lumped system on heterogeneous soil media

Bahuguna,

Firoj

2023

Earthquake Engineering and Resilience

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In the present study, an analytical approach is developed for the soil–structure interaction for the linear, eq. linear and elastic‐perfectly plastic layered soil strata. The amplification factor is calculated at the top of a lumped structure incorporating layered soil, foundation, and super‐structure deformation. The equation of motion of the system under the normalized earthquake excitation is solved using the direct integration method. MATLAB script is developed to carry out the parametric study, and nonlinear time history analysis is performed. The present methodology is compared with the finite element model (FEM), which shows good agreement. The computational time is much less than the FEM method. A parametric study is carried out in terms of soil heterogeneity, mass ratio, slenderness ratio, excitation frequency, and material model. The results indicate that due to the heterogeneity of the soil, the response of the structure is increased significantly; with the increase in the mass ratio, the amplification factor decreases with excitation frequency up to resonance, and the effect of mass ratio is negligible at the higher frequency range; with the increase in slenderness ratio, the amplification factor increases up to resonance, however, at higher frequency ranges there is no effect of slenderness ratio.

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Section: Introductionmentioning

confidence: 99%

Analytical plasticity‐based model for soil–structure interaction of lumped system on heterogeneous soil media

Bahuguna,

Firoj

2023

Earthquake Engineering and Resilience

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“…Drift is the measure of how much lateral deflection these forces cause. The amount of lateral force necessary to cause a deflection is referred to as stiffness, and the stiffness of the building required to withstand these lateral forces is referred to as lateral stiffness [10]. The building will deflect (drift) less when it is more rigid.…”

Section: Introductionmentioning

confidence: 99%

“…According to the findings, the building had a 15% likelihood of moderate damage and a 1% chance of collapsing at 0.11g of peak ground motion. Using SAP software, Tasleem et al, performed pushover and time-history analysis to assess the impact of SSI on the soft open ground storey (OGS) [10]. When compared to the OGS with the strut element, it was said that the OGS without the strut element displayed the longest time duration.…”

Section: Introductionmentioning

confidence: 99%

Impact Assessment of SSI on the Structural Performance of RC Buildings under Lateral Forces

mani,

Sankar,

Priyatham

et al. 2023

Preprint

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The performance of RC multistory buildings is significantly impacted by the interaction of soil-structure under lateral loads. The vulnerability of foundation soil to seismic vibration or wind force on the superstructure is typically overlooked in the structural design. This study examines the effects of a multi-story RC building's soil-superstructure interaction (SSI) under the impact of wind and seismic forces. This study implements the linear Winkler foundation model by assuming that the subsurface soil was medium soil and clay soil, idealized with a spring system to analyze the SSI effect. The self-weight, live-load, wind-load, and earthquake are used as the design forces in the ETABS software to carry out the 3-D simulation. The IS 1893:2016 and IS 875:2015 code provisions are used to carry out the EL and WL analyses. In this study, the structural performance of buildings is characterized in terms of storey displacement, drift ratio, base shear, and time-period. The maximum displacement for the SSIE-clay model has increased by 25.13% and 15.60% under earthquake forces compared to the FBE and SSIE-medium soil models. The fundamental period for building rests in medium soil and fixed bases models under EQ forces decreased by 15.63 and 10.36 percent when compared to the clay base model. In comparison to the FBW model under WL analysis, the maximum base shear of the FBE model under EQ analysis exhibits a 35.38 percent increment. When compared to earthquake forces, this study's findings show that the behavior of buildings with SSI is less vulnerable to wind forces.

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Effect of Stiffness and Strength of URM Infill Walls on Seismic Demand and Response of RC Buildings with Open Ground Storey

Deviprasad,

Goswami,

Sunitha

2023

Lecture Notes in Civil Engineering

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Effect of open-ground storey on RC frame buildings incorporating soil–structure interaction

Cited by 7 publications

References 22 publications

Analytical plasticity‐based model for soil–structure interaction of lumped system on heterogeneous soil media

Analytical plasticity‐based model for soil–structure interaction of lumped system on heterogeneous soil media

Impact Assessment of SSI on the Structural Performance of RC Buildings under Lateral Forces

Effect of Stiffness and Strength of URM Infill Walls on Seismic Demand and Response of RC Buildings with Open Ground Storey

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