Efficient analysis of pile-group effect on seismic stiffness and strength design of buildings

Takewaki, Izuru; Kishida, Akiko

doi:10.1016/j.soildyn.2005.02.009

Cited by 14 publications

(10 citation statements)

References 8 publications

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“…A set of numerical formulations for advanced analysis of soil-structure interaction is developed by many researchers [46,47,50,99,100]. A new frequency domain method for evaluating the earthquake input energy to a structure-pile system or a superstructure alone subjected to horizontal ground motion was developed by Takewaki et al [100].…”

Section: Numerical Investigationmentioning

confidence: 99%

“…A new frequency domain method for evaluating the earthquake input energy to a structure-pile system or a superstructure alone subjected to horizontal ground motion was developed by Takewaki et al [100].…”

Section: Numerical Investigationmentioning

confidence: 99%

“…A newly developed updated reference point (URP) method was used by Okada et al [69], to study the seismic Up Ug showing the forces in a soilpile-structure system [100] pile response of a structure-pile-soil system with uncertain soil and concrete properties. A ten storied building was modeled and the pile head bending moments were compared in URP and NURP methods.…”

Section: Numerical Investigationmentioning

confidence: 99%

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A review on soil–structure interaction analysis of laterally loaded piles

Kavitha

Beena

Narayanan

2016

Innov. Infrastruct. Solut.

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Soil-structure interaction plays an important role in the behavior of structure under static or dynamic loading. It influences the behavior of soil, as well as the response of pile under loading. The analysis is highly essential for predicting a more accurate structural behavior so as to improve the safety of structures under extreme loading conditions. The soil-pile system behavior is predominantly nonlinear and this makes the problem complicated. In a laterally loaded pile the load is resisted by the soil-pile interaction effect, which in turn depends on soil properties, pile material, pile diameter, loading type and bed slope of ground. The difficulty in the accountability of the influencing factors necessitates a careful study on soil-structure interaction problem. The analysis became easier with the debut of powerful computers and simulation tools such as finite element analysis software. A detailed literature review on soil-structure interaction analysis of laterally loaded piles is presented in this paper.

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Section: Numerical Investigationmentioning

confidence: 99%

Section: Numerical Investigationmentioning

confidence: 99%

Section: Numerical Investigationmentioning

confidence: 99%

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A review on soil–structure interaction analysis of laterally loaded piles

Kavitha

Beena

Narayanan

2016

Innov. Infrastruct. Solut.

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“…The pile group effect was investigated by the senior author in the reference [30] by using the method due to [31]. It was made clear that the pile group effect reduces the soil-pile spring stiffness in general.…”

Section: Pile Group Effectmentioning

confidence: 99%

“…Furthermore, the ratio of the inertial effect and the kinematic effect also depends on the model of the pile and soil. The result in the reference [30] is concerned with the transfer function, not the earthquake response, and the earthquake response including pile group effects requires the computation in the frequency domain. Simultaneous consideration of the frequencydependent property of a soil-pile spring and its nonlinear elastic-plastic behavior need complicated and difficult task.…”

Section: Pile Group Effectmentioning

confidence: 99%

Unified analysis of kinematic and inertial earthquake pile responses via the single-input response spectrum method

Kojima

Fujita

Takewaki

2014

Soil Dynamics and Earthquake Engineering

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In the seismic response of a structure-pile-soil system, a kinematic response due to the forced displacement of the surface ground is important, especially in a soft ground, together with the inertial response due to the inertial forces from superstructures. In this paper it is shown that a response spectrum method in terms of complex modal quantities can be used in the evaluation of the maximum kinematic and inertial seismic responses of the structure-pilesoil system to the ground motion defined at the engineering bedrock surface as an acceleration response spectrum. The notable point is that the kinematic response, the inertial response and the total response can be evaluated by the same analysis model and method by changing the model parameters. Then it is discussed which of the simple sum or the SRSS of the kinematic and inertial responses is appropriate even in resonant cases for the evaluation of the maximum pile-head bending moment. It is concluded through many examples that the validity of the simple sum or the SRSS depends on the relation between the fundamental natural period of the surface ground and that of the superstructure while an averaged evaluation is valid in resonant cases.

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Simplified computational methods for estimating dynamic impedance of batter pile groups in homogeneous soil

Cemalovic

Husebø

Kaynia

2021

Earthq Engng Struct Dyn

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A simplification of existing analytical solutions together with an extended hybrid model is proposed for estimating the horizontal impedance of batter pile groups subjected to harmonic loading. The solutions are given through compact interaction factors and analogue pile‐soil‐pile interaction elements. Benefits and pitfalls of the simplified models are elucidated through a comprehensive comparison with a refined finite element model. The effect of varying center‐to‐center pile distance with respect to depth is discussed. It is shown that the analytical model is able to represent pile‐soil‐pile interaction rather well within the specified framework.

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Efficient analysis of pile-group effect on seismic stiffness and strength design of buildings

Cited by 14 publications

References 8 publications

A review on soil–structure interaction analysis of laterally loaded piles

A review on soil–structure interaction analysis of laterally loaded piles

Unified analysis of kinematic and inertial earthquake pile responses via the single-input response spectrum method

Simplified computational methods for estimating dynamic impedance of batter pile groups in homogeneous soil

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