Effect of nonlinear soil−structure interaction and lateral stiffness on seismic performance of mid−rise RC building

Firoj, Mohd; Bahuguna, Ashish; Kanth, Aparna; Agrahari, Ravindra

doi:10.1016/j.jobe.2022.105096

Cited by 12 publications

(2 citation statements)

References 26 publications

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“…Additionally, there is a needing of understanding for solving the seismic isolation problem widely, because the problem is also related to the soil-structure interaction (SSI). In that broad field, there could also find plenty of much research which was highlighted the problem and suggested a number of ways for solving the problem 16 . For instance, Firoj et al studied effect of nonlinear soil–structure interaction and lateral stiffness on seismic performance of mid-rise RC building.…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling on geotechnical features of soil mixture using recycled tire crumb to strengthen the seismic isolation in building

Raj,

Kumar,

Kırgız

et al. 2024

Sci Rep

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In this research, the performance pertaining to tire crumb obtained from scrap tire processing plants is discussed. These tire crumbs are blended with soil at a 30% ratio. When subjected to seismic load, the performance of the 30% tire crumb combination is superior to the 0% tire crumb combination. The investigation is classified into two phases. Phase 1 of the study involves conducting an experimental investigation by applying cyclic loads to a model footing that was resting on the soil with and without tire crumbs. This study reveals that a 30% tire crumb combination achieves optimum energy absorption and minimal footing stiffness, which is a crucial component needed for base isolation. Additionally, using the PLAXIS 2D software package, finite element analysis was carried out during the second phase of the study. For this study, a three-story residential building close to the border between India and Nepal is used. Three different disastrous seismic excitations are applied to the building. From this analytical analysis, it is reported that a 60–70% reduction in acceleration is attained for 30% tire crumb combination with soil. Therefore, from the two phases, it is evaluated that the inclusion of tire crumbs with soil is an excellent seismic base isolation material.

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Section: Introductionmentioning

confidence: 99%

Numerical modelling on geotechnical features of soil mixture using recycled tire crumb to strengthen the seismic isolation in building

Raj,

Kumar,

Kırgız

et al. 2024

Sci Rep

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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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Nonlinear Seismic Response Analysis of Mid-rise RC Buildings Founded on Soft Soil

Mathews,

Jayalekshmi,

Venkataramana

2024

Lecture Notes in Civil Engineering

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Effect of nonlinear soil−structure interaction and lateral stiffness on seismic performance of mid−rise RC building

Cited by 12 publications

References 26 publications

Numerical modelling on geotechnical features of soil mixture using recycled tire crumb to strengthen the seismic isolation in building

Numerical modelling on geotechnical features of soil mixture using recycled tire crumb to strengthen the seismic isolation in building

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

Nonlinear Seismic Response Analysis of Mid-rise RC Buildings Founded on Soft Soil

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