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SELECTION CRITERIA FOR INVESTIGATION OF MICROSEISMIC AND AMBIENT VIBRATIONS
Abstract
The seismic investigation of buildings is in accordance with two important Romanian Codes, P130/1999 and the seismic design code P100-2013. Criteria for selecting buildings proposed to be seismic investigated/monitored are numerous: seismic zoning of the territory; data on structural system and types of existing structural systems, depending on the material pre and post-1940; the effect of vibration other than from the seismic vibration; location-site; seismic stations and sensors, sensors position/location in a building; correlations between data obtained directly on the ground, the analytical and from the instrumented buildings; the allocated budget etc. and should be applied taking into account the possibility of obtaining the agreement of the institutions owning, their owners. Identification of some buildings in view of seismic investigation, applying the most discussed criteria, cases where the acceptance was easy and the location schemes of sensors were quite feasible. Results will be time histories of the motions in terms of acceleration, velocities, displacements, with response spectra in 0-40Hz frequency domain. Establishing criteria for selecting and equipping of buildings represents an important milestone in a process more complex of dynamic modeling, theoretical and experimental analysis, depending on the nature of seismic/non-seismic source vibrations.
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References9
Romanian Earthquake Design Code Part I, Design Provisions for Buildings, indicative P100-1:2013 (in Romanian: Cod de proiectare seismica).
Romanian Guide for seismic instrumentation of buildings (in Romanian: Ghid pentru instrumentarea seismică a clădirilor), indicative GP 129a/1999.
Romanian Normative P130/1999 concerning construction's behavior in time (in Romanian: Normativ privind comportarea in timp a constructiilor).
Dragomir C. S., Dobre D., Georgescu E. S., Seismic instrumentation as a demand of building safety, 3rd International Conference CICOP.NET,21st Century Heritage without Borders- Sustainability and Heritage in a World of Change, Proceedings of the 3th Importance of place, Mostar International ConferenceConfederation, Italy – Bosnia and Herzegovina–Serbia, 2015.
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Pastia C., Luca S.G., Toma I.O., Effect of Semi-Active Tuned Mass Damper to Control Vibrations of a Three-Story Building, 14-th SGEM GeoConference on Science and Technologies in Geology, Exploration and Mining, SGEM2014 Conference Proceedings, Bulgaria, 2014, Vol.I, ISBN 978-619-7105-07-0/ ISSN 1314-2704, pp. 443-450, 2014.
Luca S.G., Pastia C., Toma I.O., Budescu M., Control Strategies for Seismic Energy Dissipation, 14-th SGEM GeoConference on Science and Technologies in Geology, Exploration and Mining, SGEM2014 Conference Proceedings, Bulgaria, 2014, Vol.I, ISBN 978-619-7105-07-0/ISSN 1314-2704, pp. 435-442, 2014.
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