Finite element model updating of Kömürhan highway bridge based on experimental measurements

Bayraktar, Alemdar; Altunışık, Ahmet Can; Sevim, Barış; Türker, Temel

doi:10.12989/sss.2010.6.4.373

Cited by 26 publications

(13 citation statements)

References 13 publications

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“…Based on these comparisons, it was determined that experimental data differ from analytical data. To eliminate these differences, a calibration study was conducted using the numerical model recommended in literature [15,19,20,21]. The comparisons allowed some modifications of material properties so as to obtain an optimum level, without changing boundary conditions.…”

Section: Numerical Analysismentioning

confidence: 99%

Determination of dynamic parameters of double-layered brick arches

Lakušić¹

2014

JCE

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Determination of dynamic parameters of double-layered brick arches Masonry arches assume a very important role in construction industry, and we find them in many historical structures all over the world. Dynamic parameters, frequency, and damping of masonry arches are defined in this paper using the Experimental Modal Analysis (EMA). Double-layered arches were built using standard hollow bricks and traditional Horasan mortar. The brick arches were tested with an impact hammer, and the arch response was measured using a laser vibrometer. Experimental tests were compared with numerical modelling in order to verify adequacy of physical models.

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Section: Numerical Analysismentioning

confidence: 99%

Determination of dynamic parameters of double-layered brick arches

Lakušić¹

2014

JCE

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“…If the terms in (7) are obtained by (8) and those are replaced in (6), the second invariant of the deviatoric stress tensor can be obtained, the expression of which is below.…”

Section: Drucker-prager Criterionmentioning

confidence: 99%

“…However, the differences between analytical and experimental results come from the inaccurate in the analytical model; these inaccurate are due to boundary conditions and material properties. In addition, both of boundary conditions and material properties are selected as update parameters in a finite element model update procedure [7,8,35]. However, the material properties of historical structures are very difficult to select or define.…”

Section: Operational Modal Analysis and Experimental Dynamic Charactementioning

confidence: 99%

Assessment of nonlinear seismic performance of a restored historical arch bridge using ambient vibrations

et al. 2010

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Historic masonry arch bridges are vital components of transportation systems in many countries worldwide, ensuring the ready access of goods and services to millions of people. The structural failure of these historic structures would severely and adversely impact the economies of these nations due to the massive disruptions of transportation systems accompanying such failures. To successfully maintain these aging masonry structures, performance assessment must incorporate the unique mechanical characteristics of masonry. Therefore, the preferred analysis technique must go beyond a linear approach. This study assesses the earthquake performance of a restored historical masonry arch bridge through nonlinear finite element analysis incorporating the DruckerPrager damage criterion. The case study structure is the Mikron Arch Bridge, a nineteenth century Ottoman Era structure built over the Firtina River near Rize, Turkey, and restored in 1998. The Mikron Arch Bridge was first subjected to ambient vibration testing, during which accelerometers were placed at several points on the bridge span to record the bridge vibratory response. The investigators then used Enhanced Frequency Domain Decomposition and Stochastic Subspace Identification techniques to extract the experimental natural frequencies, mode shapes, and damping ratios from these measurements. Experimental results were compared with those obtained by the linear finite element analysis of the bridge. Good agreement between mode shapes was observed during this comparison, though natural frequencies disagree by 8-10%. The boundary conditions of the linear finite element model of Mikron Arch Bridge are adjusted such that the analytical predictions agree with the ambient vibration test results. By introducing the Drucker-Prager damage criterion, the calibrated linear FE model was next extended into a nonlinear model. Nonlinear analysis of seismic behavior of Mikron arch bridge was performed considering the acceleration record of Erzincan earthquake in 1992 that occurred near the Mikron Bridge region. The displacement and stress results were observed to be allowable level of the stone material. Moreover, linear FE model calibrations elicited a significant influence on the nonlinear FE model simulations.Keywords Ambient vibration testing · Historical arch bridge · Dynamic characteristics · Nonlinear earthquake behavior · Finite element modeling · Model calibration · Operational modal analysis 756 B. Sevim et al.

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“…This procedure is called as finite element model updating, and can be considered as an attempt to use the best features from both the analytical and experimental models [20]. There are many studies in the literature about finite element model updating of engineering structures [20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%