Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (10) Citing Articles via Google Scholar Google Scholar Articles by Gueguen, P. Articles by Oliveira, C. S. Search for Related Content GeoRef GeoRef Citation

Experimental and Numerical Analysis of Soil Motions Caused by Free Vibrations of a Building Model

Laboratoire de Géophysique Interne et Tectonophysique (LGIT), BP53
38041 Grenoble Cedex, France
pgueg{at}lgit.obs.ujf-grenoble.fr
(P. G., P.-Y. B.)
Laboratoire Central des Ponts-et-Chaussées (LCPC)
58 bd Lefebvre
75732 Paris Cedex 15, France
(P. G., P.-Y. B.)
Instituto Superior Técnico
Departamento de Engenharia Civil. Av. Rovisco Pais
1049-001 Lisboa, Portugal
(C. S. O.)

Effects of vibrating structure on the free-field motion are presented through a field experiment at the Euro-Seistest and a corresponding numerical simulation. Ground motion has been recorded by a dense temporary three-component (3C), two-dimensional (2D) seismic network installed at increasing distances from a model building forced into vibration by pull-out tests. The building is a five-story RC structure at a one-third scale, resting on the soil through surface square footing. A traction force, F₀, applied at the building top and suddenly released forced it into vibrations. Two sequences of a pull-out test (POT) have been performed, each one made of two vibration tests in the two horizontal directions of the building (longitudinal and transverse).

The experimental data are then compared to the results of the numerical simulation. The soil-structure system is modeled by a three degree of freedom (3DOF) system. The soil-structure interaction (SSI) is accounted for through the help of impedance functions, and the motion induced by POT are estimated together with the base force and moment developed at the soil-structure interface. By representing the base forces by surface point seismic sources, the induced wavefield radiated in the surrounding free field is then computed by numerical Green's functions. The results presented here do validate the numerical computation method, which gave distant motions in close relation with the experimental data, from a qualitative and quantitative point of view. The spectral analysis does also exhibit surface waves trapped in the topmost layer. Results confirm the significant contamination of ground motion due to building vibration.

This article has been cited by other articles:

				J.-F. Semblat, M. Kham, and P.-Y. Bard Seismic-Wave Propagation in Alluvial Basins and Influence of Site-City Interaction Bulletin of the Seismological Society of America, December 1, 2008; 98(6): 2665 - 2678. [Abstract] [Full Text] [PDF]

				M. R. Gallipoli, M. Mucciarelli, F. Ponzo, M. Dolce, E. D'Alema, and M. Maistrello Buildings as a Seismic Source: Analysis of a Release Test at Bagnoli, Italy Bulletin of the Seismological Society of America, December 1, 2006; 96(6): 2457 - 2464. [Abstract] [Full Text] [PDF]

				Analysis of RC Building Dynamic Response and Soil-Building Resonance Based on Data Recorded during a Damaging Earthquake (Molise, Italy, 2002) Bulletin of the Seismological Society of America, October 1, 2004; 94(5): 1943 - 1953.

				Site-City Seismic Interaction in Mexico City-Like Environments: An Analytical Study Bulletin of the Seismological Society of America, March 1, 2002; 92(2): 794 - 811.