Seismic Pounding Response of Neighboring Structure using Various Codes with Soil-Structure Interaction effects: Focus on Separation Gap

Awchat, Ganesh; Monde, Amruta; Sirsikar, Rajat; Dingane, Rahul; Dhanjode, Gopal

doi:10.28991/cej-2022-08-02-09

Cited by 4 publications

(3 citation statements)

References 26 publications

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“…Overall, the study shows that the soil-structure interaction has a significant impact on the behavior of buildings during earthquakes, and the type of soil and bracing system used can greatly affect the safety of the structure. Furthermore, a recent study focused on soil-structure interaction of adjacent buildings has shown that by considering soil-structure interaction, there is an increase of 90 to 95% in the maximum lateral roof displacement values, which is consistent with our findings [42]. It is essential to consider the inter-story drift ratio and lateral displacement in structural design and stability verification, and to account for the effects of soil-structure interaction in seismic design.…”

Section: Lateral Displacementsupporting

confidence: 91%

“…However, it was found that the time period increased when the effect of soil-structure interaction (SSI) was considered, and also when the bracing type was changed from column bracing to shear wall bracing. These findings were also demonstrated in a recent study, where the consideration of SSI effect resulted in a 15-25% increase in time period [42]. Consequently, it has become imperative to incorporate structural ductility in the design to cater to the increased time period.…”

Section: Time Periodsupporting

confidence: 54%

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Optimal Bracing Type of Reinforced Concrete Buildings with Soil-Structure Interaction Taken into Consideration

et al. 2023

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This study aims to investigate the impact of soil-structure interaction (SSI) on the seismic behavior of reinforced concrete buildings. An advanced numerical model for SSI was developed and verified using ABAQUS software. The seismic response of a 12-story building on four types of soil (rock, dense soil, stiff soil, and soft soil) was examined using a Normalized Response Spectra based on the Moroccan paraseismic regulation RPS 2011. The global lateral displacement, inter-story drift, and period were compared for two types of bracing (column and shear wall). The results show that SSI has a significant impact on the seismic behavior of buildings, and the seismic responses of soil-structure systems with column and shear wall bracing are quite different. The research contributions of this paper include developing an advanced numerical model for SSI, examining the impact of SSI on the choice of bracing for reinforced concrete buildings, and providing guidance on the most reliable bracing method for structures of various heights and soil types. The study's findings have important implications for seismic design and can help improve the safety and reliability of buildings in earthquake-prone regions. The study also highlights the importance of considering SSI in seismic design and the need for guidelines that describe the bracing systems to be used based on the structure's height and type of soil. Doi: 10.28991/CEJ-2023-09-06-06 Full Text: PDF

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Section: Lateral Displacementsupporting

confidence: 91%

Section: Time Periodsupporting

confidence: 54%

Optimal Bracing Type of Reinforced Concrete Buildings with Soil-Structure Interaction Taken into Consideration

et al. 2023

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“…Therefore, the study highly recommends performing similar studies for buildings with mat foundation systems. Similar findings from (Elwardany et al, 2019;Jaradat et al, 2021;Awchat et al, 2022) emphasized the importance of including SSI effects in the calculation for the pounding impacts.…”

Section: Wall-frame Structuressupporting

confidence: 61%

Soil-structure interaction: A state-of-the-art review of modeling techniques and studies on seismic response of building structures

Bapir

Abrahamczyk

Wichtmann

et al. 2023

Front. Built Environ.

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The present article aims to provide an overview of the consequences of dynamic soil-structure interaction (SSI) on building structures and the available modelling techniques to resolve SSI problems. The role of SSI has been traditionally considered beneficial to the response of structures. However, contemporary studies and evidence from past earthquakes showed detrimental effects of SSI in certain conditions. An overview of the related investigations and findings is presented and discussed in this article. Additionally, the main approaches to evaluate seismic soil-structure interaction problems with the commonly used modelling techniques and computational methods are highlighted. The strength, limitations, and application cases of each model are also discussed and compared. Moreover, the role of SSI in various design codes and global guidelines is summarized. Finally, the advancements and recent findings on the SSI effects on the seismic response of buildings with different structural systems and foundation types are presented. In addition, with the aim of helping new researchers to improve previous findings, the research gaps and future research tendencies in the SSI field are pointed out.

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Experimental investigation of dynamic soil properties for modeling energy-absorbing layers

Abood,

Fattah,

Al-Adili

2024

Open Engineering

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Modeling the propagation of waves in geomechanics is an essential part of dynamic analysis. In geotechnics, the study of the interaction between the soil and the foundation is particularly interesting. In order to mimic low-speed operating types (less than 1,500 rpm), this study details the creation of a dependable and efficient approach for designing and fabricating the steel box container. When employed as a boundary, an absorbing layer drastically reduces the amount of wave reflection that occurs inside the limited region. The present effort is split into two halves. The first step is to calculate the damping layer’s damping constants, subgrade response modulus, damping ratio, shear modulus, vibration amplitude, and resonant frequency. The second section focuses on the dynamic study of the circular foundation by measuring the vibration amplitude, acceleration, velocity, and displacement caused by harmonic vibration machines. The findings demonstrate that simple material borders prevent the wave from dissipating as a consequence of reflection. Attenuation of waves is possible when the absorbing layer of energy represents semi-infinite soil. When absorbing just one layer, the vertical displacements at positions located at the box side boundary and its base decreased by 65, 63, and 67%, respectively. However, it dropped by 97, 96, and 98%, respectively, when two absorbent layers were used. On the basis of these promising results, the model results were compared with and without the absorbing layer. It would appear that the modeling of the absorbing layer, which is designed as two layers, has been satisfied for low speeds of harmonic vibration.

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Seismic Pounding Response of Neighboring Structure using Various Codes with Soil-Structure Interaction effects: Focus on Separation Gap

Cited by 4 publications

References 26 publications

Optimal Bracing Type of Reinforced Concrete Buildings with Soil-Structure Interaction Taken into Consideration

Optimal Bracing Type of Reinforced Concrete Buildings with Soil-Structure Interaction Taken into Consideration

Soil-structure interaction: A state-of-the-art review of modeling techniques and studies on seismic response of building structures

Experimental investigation of dynamic soil properties for modeling energy-absorbing layers

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