System identification of instrumented bridge systems

Date

2003-06-01

Author

Arıcı, Yalın

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

140
views

0
downloads

Several recorded motions for seven bridge systems in California during recent earthquakes were analysed using parametric and non-parametric system identification (SI) methods. The bridges were selected considering the availability of an adequate array of accelerometers and accounting for different structural systems, materials, geometry and soil types. The results of the application of SI methods included identification of modal frequencies and damping ratios. Excellent fits of the recorded motion in the time domain were obtained using parametric methods. The multi-input/single-output SI method was a suitable approach considering the instrumentation layout for these bridges. Use of the constructed linear filters for prediction purposes was also demonstrated for three bridge systems. Reasonable prediction results were obtained considering the various limitations of the procedure. Finally, the study was concluded by identifying the change of the modal frequencies and damping of a particular bridge system in time using recursive filters. Copyright (C) 2003 John Wiley Sons, Ltd.

Subject Keywords

Geotechnical Engineering and Engineering Geology, Earth and Planetary Sciences (miscellaneous)

URI

https://hdl.handle.net/11511/46372

Journal

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

DOI

https://doi.org/10.1002/eqe.259

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

PREDICTION OF SEISMIC ENERGY-DISSIPATION IN SDOF SYSTEMS NURTUG, A; Sucuoğlu, Haluk (Wiley, 1995-09-01) A simple analytical procedure is developed for calculating the seismic energy dissipated by a linear SDOF system under an earthquake ground excitation. The ground excitation is specified by its pseudo-velocity spectra and effective duration whereas the SDOF system is defined by its natural period of vibration and viscous damping ratio. However, the derived relationship for the energy dissipation demand under an earthquake excitation is sensitive neither to the viscous damping ratio nor the ductility ratio w...
Structure-soil-structure interaction of adjacent buildings subjected to seismic loading Bybordiani, Milad; Arıcı, Yalın (Wiley, 2019-06-01) The problem of the through-soil coupling of structures has puzzled the researchers in the field for a long while, especially regarding the varied performance of identical, adjacent buildings in earthquakes. The phenomenon of structure-soil-structure interaction (SSSI) that has often been overlooked is recently being recognized: The possible effects in urban regions are yet to be thoroughly quantified. In this respect, the goal of this work was to rigorously investigate the interacting effects of adjacent bu...
Prediction of input energy spectrum: attenuation models and velocity spectrum scaling Alici, F. S.; Sucuoğlu, Haluk (Wiley, 2016-10-25) Recent improvements in performance-based earthquake engineering require realistic description of seismic demands and accurate estimation of supplied capacities in terms of both forces and deformations. Energy based approaches have a significant advantage in performance assessment because excitation and response durations, accordingly energy absorption and dissipation characteristics, are directly considered whereas force and displacement-based procedures are based only on the maximum response parameters. En...
Seismic demand models for probabilistic risk analysis of near fault vertical ground motion effects on ordinary highway bridges Gülerce, Zeynep; Kunnath, Sashi K.; Abrahamson, Norman A. (Wiley, 2012-02-01) The influence of vertical ground motions on the seismic response of highway bridges is not very well understood. Recent studies suggest that vertical ground motions can substantially increase force and moment demands on bridge columns and girders and cannot be overlooked in seismic design of bridge structures. For an evaluation of vertical ground motion effects on the response of single-bent two-span highway bridges, a systematic study combining the critical engineering demand parameters (EDPs) and ground m...
Seismic response assessment of a stiff structure Kazaz, I; Yakut, Ahmet; Gulkan, P (Wiley, 2006-05-01) Seismic response of a lightly reinforced stiff shear-wall structure subjected to ground motions grouped as near- or far-field according to their distance to causative faults is investigated. A model structure that had earlier been studied both experimentally and analytically in the context of a co-ordinated research project is re-examined. The structure is a five-storey lightly reinforced shear-wall model subjected analytically to 55 ground motion records from firm soil sites. Several response parameters ar...

Citation Formats

Y. Arıcı, “System identification of instrumented bridge systems,” EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, pp. 999–1020, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46372.