Dynamic analysis of soil structure interaction by the spectral element method

Souad, Boudaa; Khalfallah, Salah; Hamioud, Saida

doi:10.1007/s41062-019-0227-y

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…SEM was one of the powerful numerical techniques used for dynamic tasks. Boudaa and et al used SEM to study vibration of beams on non-classical support [12]. Monsalve et al estimated earthquake-induced direct losses using the performance assessment calculation tool in tall buildings and recommends including SSI effects to avoid underestimation [13].…”

Section: Introductionmentioning

confidence: 99%

Influence of Soil-Structure Interaction on the Seismic Response of the Structure on Mat Foundation

Awchat

Monde

2021

Civ Eng J

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The disasters that occur due to seismic activities not only affect the structure but also soil beneath it. Neglecting the effect of Soil-Structure Interaction (SSI) in design leads to unsafe design. This paper focuses on the behavior of the structure under El-Centro earthquake considering soil-structure interaction (SSI). Seismic response of G+10 storied building in various seismic zones of India is obtained using Time-history method. The direct approach i.e., finite element analysis is used to analyze effect of SSI. The model with mat foundation and soil is compared with fixed base model in SAP 2000 v.20. The behavior of the structure is studied by parameters like inter-storey drift ratio, lateral storey displacements, response spectrum curves for spectral acceleration and spectral velocity for various damping and time period of different seismic zones of India. The parameter like inter-storey drift ratio can determine safety of the structures. From inter-storey drift ratios, the buildings in zone IV and zone V were found to be unsafe. The lateral storey drift was found to increase by 47-87% considering SSI in zone II and 60-95% considering SSI in Zone II, IV and V. It also increased with increase in storey number. The spectral acceleration, spectral velocity and time period increased by considering effects of SSI in each seismic zone. The spectral acceleration and spectral velocity found to decrease with increase in damping and increase in seismic zones from zone II to V. Further to reduce the effect of SSI the structures can be equipped with base isolators and various types of dampers. It is clear that from zone III to V, SSI should be included for structures on soft soil and for retrofitting of the structure. Some experimental studies can further be performed and the numerical modelling can include parameters like P-delta, angle of incidence of ground motions and various structural systems can be implemented in this study. Doi: 10.28991/cej-2021-03091752 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Influence of Soil-Structure Interaction on the Seismic Response of the Structure on Mat Foundation

Awchat

Monde

2021

Civ Eng J

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“…It reduces finite elements, degree of freedom, time, and space for computation. Boudaa, S. et al [20] validated the SEM method to differential transform method and analytical method and concluded that it converges fast than FEM and the soil property affects the mode shapes of vibration.…”

Section: Spectral Element Methods (Sem)mentioning

confidence: 99%

Soil-Structure Interaction: Comparative Review of International Codes and Other Literature with Indian Seismic Code

Awchat¹,

Monde²,

Sirsikar³

et al. 2022

Civil and Environmental Engineering

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Currently, structural engineers design structures as fixed bases, ignoring soil-structure interaction (SSI). Due to difficulties in the modelling of soil and the absence of procedure to incorporate effects of SSI in seismic design codes. Various researchers have shown the importance of considering SSI during earthquakes. This paper highlights the interaction effects of SSI, its seismic response, the general procedure for engineers to incorporate the impact of SSI. Various methods to solve SSI problems and their provisions are mentioned in different International Seismic Codes reviewed. However, there is an urgent need to incorporate detailed guidelines considering SSI effects in the Indian Seismic code. Thus, Indian engineers should reach for international Codes or other available literature to solve their SSI assignments.

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“…In the literature, the resistance or "draft force problem" has been tackled either experimentally, or by developing analytical models and using numerical methods [51]. Methods used for parameter estimation in different tool-soil interaction models have included multilayer neural networks and swarm intelligence [52], discrete element modeling [53], the finite element [50], and the spectral element method [54].…”

Section: Tool-soil Interactionmentioning

confidence: 99%

Robotic autonomous systems for earthmoving equipment operating in volatile conditions and teaming capacity: a survey

Nguyen

2022

Robotica

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There has been an increasing interest in the application of robotic autonomous systems (RASs) for construction and mining, particularly the use of RAS technologies to respond to the emergent issues for earthmoving equipment operating in volatile environments and for the need of multiplatform cooperation. Researchers and practitioners are in need of techniques and developments to deal with these challenges. To address this topic for earthmoving automation, this paper presents a comprehensive survey of significant contributions and recent advances, as reported in the literature, databases of professional societies, and technical documentation from the Original Equipment Manufacturers (OEM). In dealing with volatile environments, advances in sensing, communication and software, data analytics, as well as self-driving technologies can be made to work reliably and have drastically increased safety. It is envisaged that an automated earthmoving site within this decade will manifest the collaboration of bulldozers, graders, and excavators to undertake ground-based tasks without operators behind the cabin controls; in some cases, the machines will be without cabins. It is worth for relevant small- and medium-sized enterprises developing their products to meet the market demands in this area. The study also discusses on future directions for research and development to provide green solutions to earthmoving.

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Dynamic analysis of soil structure interaction by the spectral element method

Cited by 8 publications

References 24 publications

Influence of Soil-Structure Interaction on the Seismic Response of the Structure on Mat Foundation

Influence of Soil-Structure Interaction on the Seismic Response of the Structure on Mat Foundation

Soil-Structure Interaction: Comparative Review of International Codes and Other Literature with Indian Seismic Code

Robotic autonomous systems for earthmoving equipment operating in volatile conditions and teaming capacity: a survey

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