Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness Eccentricity
A frequency-domain method of physical-parameter system identification is developed for three-dimensional building structures with stiffness eccentricity. Equations of motion in the time domain are transformed into the frequency domain. The dynamic equilibrium of the free body above the j-th story is...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2017-12-01
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| Series: | Frontiers in Built Environment |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/article/10.3389/fbuil.2017.00071/full |
| _version_ | 1811326218298982400 |
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| author | Kunihiko Nabeshima Izuru Takewaki |
| author_facet | Kunihiko Nabeshima Izuru Takewaki |
| author_sort | Kunihiko Nabeshima |
| collection | DOAJ |
| description | A frequency-domain method of physical-parameter system identification is developed for three-dimensional building structures with stiffness eccentricity. Equations of motion in the time domain are transformed into the frequency domain. The dynamic equilibrium of the free body above the j-th story is used to identify the j-th story stiffness and damping. It is required to measure the horizontal and rotational accelerations at all stories to identify the story stiffness and damping coefficients of all stories. Compared to the previous approach using the special identification function, the limit manipulation at zero frequency is unnecessary and is robust for noise. Furthermore, it should be remarked that the quantities of eccentricities in all stories can be identified using the slopes of the functions for torsional stiffness identification in the frequency domain. |
| first_indexed | 2024-04-13T14:46:16Z |
| format | Article |
| id | doaj.art-97c4adbc64544101b2148f3e84e1d511 |
| institution | Directory Open Access Journal |
| issn | 2297-3362 |
| language | English |
| last_indexed | 2024-04-13T14:46:16Z |
| publishDate | 2017-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Built Environment |
| spelling | doaj.art-97c4adbc64544101b2148f3e84e1d5112022-12-22T02:42:45ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622017-12-01310.3389/fbuil.2017.00071317170Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness EccentricityKunihiko Nabeshima0Izuru Takewaki1Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto, JapanDepartment of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto, JapanA frequency-domain method of physical-parameter system identification is developed for three-dimensional building structures with stiffness eccentricity. Equations of motion in the time domain are transformed into the frequency domain. The dynamic equilibrium of the free body above the j-th story is used to identify the j-th story stiffness and damping. It is required to measure the horizontal and rotational accelerations at all stories to identify the story stiffness and damping coefficients of all stories. Compared to the previous approach using the special identification function, the limit manipulation at zero frequency is unnecessary and is robust for noise. Furthermore, it should be remarked that the quantities of eccentricities in all stories can be identified using the slopes of the functions for torsional stiffness identification in the frequency domain.http://journal.frontiersin.org/article/10.3389/fbuil.2017.00071/fullsystem identificationtorsional responsefrequency domainstiffness eccentricityphysical-parameter identification |
| spellingShingle | Kunihiko Nabeshima Izuru Takewaki Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness Eccentricity Frontiers in Built Environment system identification torsional response frequency domain stiffness eccentricity physical-parameter identification |
| title | Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness Eccentricity |
| title_full | Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness Eccentricity |
| title_fullStr | Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness Eccentricity |
| title_full_unstemmed | Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness Eccentricity |
| title_short | Frequency-Domain Physical-Parameter System Identification of Building Structures with Stiffness Eccentricity |
| title_sort | frequency domain physical parameter system identification of building structures with stiffness eccentricity |
| topic | system identification torsional response frequency domain stiffness eccentricity physical-parameter identification |
| url | http://journal.frontiersin.org/article/10.3389/fbuil.2017.00071/full |
| work_keys_str_mv | AT kunihikonabeshima frequencydomainphysicalparametersystemidentificationofbuildingstructureswithstiffnesseccentricity AT izurutakewaki frequencydomainphysicalparametersystemidentificationofbuildingstructureswithstiffnesseccentricity |