Damage‐based seismic planar pounding analysis of adjacent symmetric buildings considering inelastic structure–soil–structure interaction

Ghandil, Mehdi; Aldaikh, Hesham

doi:10.1002/eqe.2848

Cited by 50 publications

(26 citation statements)

References 31 publications

(40 reference statements)

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“…Naderpour et al [20] studied the case of pounding between two adjacent buildings by the application of single degree-of-freedom structural model. Ghandil and Aldaikh [21] developed a series of SSSI models to accurately study the problem of SSSI-included pounding of two adjacent buildings. Karayannis and Naoum [22] investigated the influence of two adjacent structures with different stories, different layouts, and initial distance on torsion under earthquake.…”

Section: Introductionmentioning

confidence: 99%

Pounding between Adjacent Frame Structures under Earthquake Excitation Based on Transfer Matrix Method of Multibody Systems

Zhang

Ding

Zhuang

et al. 2019

Advances in Civil Engineering

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In this paper, the case of two adjacent frame structures is studied by establishing a mechanical model based on the transfer matrix method of multibody system (MS-TMM). e transfer matrices of the related elements and total transfer equation are deduced, combining with the Hertz-damp mode. e pounding process of two adjacent frame structures is calculated by compiling the relevant MATLAB program during severe ground motions. e results of the study indicate that the maximum error of the peak pounding forces and the peak displacements at the top of the frame structure obtained by the MS-TMM and ANSYS are 6.22% and 9.86%, respectively. Comparing the calculation time by ANSYS and MS-TMM, it shows that the computation efficiency increases obviously by using the MS-TMM. e pounding mainly occurs at the top of the short structure; meanwhile, multiple pounding at the same time may occur when the separation gap is small. e parametric investigation has led to the conclusion that the pounding force, the number of poundings, the moment of pounding, and the structural displacement are sensitive to the change of the seismic peak acceleration and the separation gap size.

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Section: Introductionmentioning

confidence: 99%

Pounding between Adjacent Frame Structures under Earthquake Excitation Based on Transfer Matrix Method of Multibody Systems

Zhang

Ding

Zhuang

et al. 2019

Advances in Civil Engineering

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“…Pounding occurs if the separation distance between adjacent buildings is not sufficient in order to compensate for their relative movements. It is dynamically complex and even chaotic behavior that occurs if the eigenfrequencies of the single buildings differ considerably [5]. Therefore, numerical simulations of the dynamic pounding problem are necessary in order to understand the characteristics of structures based on which guidelines for structural design can be provided [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A Structural Pounding Formulation Using Systematic Modal Truncation

Shi

Bamer

Markert

2018

Shock and Vibration

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The evaluation of the response function of the structural pounding problem is generally time-consuming if high-order systems are applied. The well-known modal truncation strategy is outstandingly efficient for a single linear ground-accelerated structure. However, for the analysis of the structural pounding problem, the classical modal truncation technique turns out to be ineffective as additional higher frequency motion due to possible contact impact occurs. This makes the determination of how many modes should be taken into account in order to obtain a required level of accuracy more difficult. Therefore, in this paper, a systematically controlled modal truncation strategy adapted to the seismic pounding formulation under consideration of high nonlinearity and nonsmoothness of contact problems is introduced. A comparative study of the classical and the controlled modal truncation technique is presented and a comparison with the commercial software package ABAQUS © is provided. It is shown that the computational accuracy is significantly improved when applying the new systematically controlled modal truncation strategy.

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“…The influence of soil‐structure interaction was studied in by means of simplified lumped mass‐spring‐dashpot models for the soil. As for the necessary minimum distance between buildings to avoid pounding, taking into account soil‐structure interaction, concludes that the recommendations of the International Building Code 2009 on this respect are unconservative.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of pounding between adjacent structures

Crozet

Politopoulos

Yang

et al. 2017

Earthq Engng Struct Dyn

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SummaryThis article deals with sensitivity of the response of pounding buildings with respect to structural and earthquake excitation parameters. A comprehensive sensitivity analysis is carried out by means of Monte Carlo simulations of adjacent single degree of freedom impacting oscillators. This sensitivity analysis, based on Sobol 0 s method, computes sensitivity indexes which provide a consistent measure of the relative importance of parameters such as the dimensionless main excitation frequency, the mass and frequency ratios of the structures, and the coefficient of restitution. Moreover, the influence of nonlinear behavior of the impacting structures is also considered. The consequences of pounding on the structures themselves are analyzed in terms of maximum force and nonlinear demand amplification compared with the case without pounding. As for the influence of pounding on the floor response spectra, the quantity of interest is the maximum impact impulse. The overall conclusions of this analysis are that the frequency ratio is the most important parameter as far as the maximum force and nonlinear demand are concerned.Regarding the maximum impact impulse, the mass and frequency ratios are, in general, the most influential parameters, the mass ratio being predominant for low frequencies of the oscillator of interest.

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Damage‐based seismic planar pounding analysis of adjacent symmetric buildings considering inelastic structure–soil–structure interaction

Cited by 50 publications

References 31 publications

Pounding between Adjacent Frame Structures under Earthquake Excitation Based on Transfer Matrix Method of Multibody Systems

Pounding between Adjacent Frame Structures under Earthquake Excitation Based on Transfer Matrix Method of Multibody Systems

A Structural Pounding Formulation Using Systematic Modal Truncation

Sensitivity analysis of pounding between adjacent structures

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