Characterizing the Effects of Pile Foundations for Evaluation of Performance Based Seismic Design of Critical Lifeline Structures

Finn, W. D. Liam; Fujita, Noriyuki; Thavaraj, Thuraisamy

doi:10.1061/40687(2003)102

Cited by 5 publications

(4 citation statements)

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“…Thus, unknown parameters K 7 and K 8 (boundary stiffness) are adopted besides K 1 to K 6 as shown in Figure 12. In addition, set K 7 =K 8 =4.025×10 4 kN/m and their initial values are set as K 7 =K 8 =3.5×10 4 kN/m based on pile stiffness identification results (Kutera and Kacprzak, 2013;Finn, 2004). The results show the boundary conditions can be identified together with connection stiffness as shown in Figure 13.…”

Section: Identification With Unknown Boundary Conditionsmentioning

confidence: 99%

Connection stiffness identification of historic timber buildings using Temperature-based sensitivity analysis

Lyu

Zhu

Yang

2017

Engineering Structures

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The beam-column connection, called 'Que Ti', is the key component of historic Tibetan timber buildings to transfer shear, compression and bending loads from one structural element to another. This kind of connections can reduce the internal forces and improve the structure's ability to resist earthquakes. Its structure is very complicated and there is little information about the behaviour of this kind of semi-rigid connections. In this paper, a temperature-based response sensitivity method is proposed to identify the connection stiffness of the 'Que-Ti' in typical historical Tibetan buildings from temperature and strain response measurements. The semi-rigid connection is modelled as two rotational springs and one compressive spring. The temperature is treated as a measureable input and the thermal loading on the structure can be determined from the temperature variation. The numerical results show the method is effective and reliable to identify both unknown boundary conditions and the connection stiffness of the structure accurately even with 10% noise in measurements. A long-term monitoring system has also been installed in a typical historical Tibetan building and the monitoring data are used to further verify the proposed method. The experimental results show that the identified stiffness by the proposed method are consistent with that by finite element model updating from ambient vibration measurements.

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Section: Identification With Unknown Boundary Conditionsmentioning

confidence: 99%

Connection stiffness identification of historic timber buildings using Temperature-based sensitivity analysis

Lyu

Zhu

Yang

2017

Engineering Structures

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“…This needs to be verified by a few more case histories. A more detailed discussion of SSI of pile foundation and a critical review of foundation springs used in practice may be found in Finn ().…”

Section: Bridge Piers On Pilesmentioning

confidence: 99%

Modeling soil–foundation–structure interaction

Finn

Pandey

Ventura

2011

Structural Design Tall Build

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SUMMARY This paper offers a guided tour through the various ways, used in practice, of accounting for soil–structure interaction in design and analysis, ranging from a complete analysis of the total combined system of foundation, soil and structure to approximate models of the system. The focus is on three types of structures: bridges on pile foundations, tall buildings with several levels of underground parking and large basement slabs with shallow embedment. The paper also reports on preliminary results from the study of seismic pressures against deep basement walls commissioned by the Structural Engineers Association of British Columbia. Copyright © 2011 John Wiley & Sons, Ltd.

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“…In an attempt to overcome these problems, a continuum finite element model, PILE-3D, was developed by Wu [11] and Wu and Finn [12,13] to analyze the response of single piles and pile groups subject to dynamic lateral loads, using an equivalent linear constitutive model. Since then, the method has been applied both in research and in practice, [14,15,16,17,18].…”

Section: Introductionmentioning

confidence: 99%

Quasi-3D analysis: Validation by full 3D analysis and field tests on single piles and pile groups

Finn

Dowling

2015

Soil Dynamics and Earthquake Engineering

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Characterizing the Effects of Pile Foundations for Evaluation of Performance Based Seismic Design of Critical Lifeline Structures

Cited by 5 publications

References 0 publications

Connection stiffness identification of historic timber buildings using Temperature-based sensitivity analysis

Connection stiffness identification of historic timber buildings using Temperature-based sensitivity analysis

Modeling soil–foundation–structure interaction

Quasi-3D analysis: Validation by full 3D analysis and field tests on single piles and pile groups

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