Shake table testing of a full-scale five-story building: System identification of the five-story test structure

Rodrigo Astroza, J. P. Conte, J. I. Restrepo, H. Ebrahimian, T. C. Hutchinson

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

6 Citas (Scopus)

Resumen

A full scale five-story reinforced concrete building was built and tested on the NEES-UCSD shake table. The purpose of this test was to study the response of the structure and nonstructural components and systems (NCSs) and their dynamic interaction during seismic excitations of different intensities. The building specimen was tested under base-isolated and fixed-based conditions. To analyze the effects of the construction process, NCSs, the isolation system and structural/nonstructural damage on the dynamic properties of the building, a sequence of dynamic tests were performed on the test specimen, including ambient vibrations, impact/free vibration and forced vibration tests, the last including low amplitude white noise (WN) and seismic base excitation. In this paper, the measured response data from accelerometers are used to estimate the modal parameters (natural frequencies, damping ratios and mode shapes) of the building at different stages of construction, during the placement of NCSs and at different damage states of the structure and NCSs. Different system identification methods, including output-only and input-output, are used for this purpose. The results clearly show the effects of changing the state of the building on its equivalent linear dynamic properties, providing significant insight on the effects, absolute and relative, of the construction activities, NCSs and structural/nonstructural damage on the modal properties of the building.

Idioma originalInglés
Título de la publicación alojadaStructures Congress 2013
Subtítulo de la publicación alojadaBridging Your Passion with Your Profession - Proceedings of the 2013 Structures Congress
EditorialAmerican Society of Civil Engineers (ASCE)
Páginas1472-1484
Número de páginas13
ISBN (versión impresa)9780784412848
DOI
EstadoPublicada - 2013
Publicado de forma externa
EventoStructures Congress 2013: Bridging Your Passion with Your Profession - Pittsburgh, PA, Estados Unidos
Duración: 2 may 20134 may 2013

Serie de la publicación

NombreStructures Congress 2013: Bridging Your Passion with Your Profession - Proceedings of the 2013 Structures Congress

Conferencia

ConferenciaStructures Congress 2013: Bridging Your Passion with Your Profession
País/TerritorioEstados Unidos
CiudadPittsburgh, PA
Período2/05/134/05/13

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