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12/12/17 19:40 pm

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DIGITAL ACCELEROGRAPH SYSTEM FOR STRUCTURES "SADE"

DESCRIPTION


The digital accelerograph system for structures, is a development of our institution for structure instrumentation, with the function of supplying, installing and starting a periodic operation and preservation program of seismic instrumentation, capable to register the effect of strong earthquakes in buildings.
When a structure goes through the action of seismic acceleration, the measure of its effects provides useful information to study and evaluate its dynamic response, also the possible historical evolution of its behavior, the equipment is in charge of the recording of this kind of seismic acceleration in structures.

SADE

Study of Instrumentation


FUNCTIONING


The system consists in strong motion recorders, digital array with triaxial sensors located in different selected points of the building. This accelerometric system will be able to start the recording when the seismic accelerations exceed the preestablished triggering level or when an external indication is picked up. This trigger may be generated by the seismic early warning system of Mexico city when it detects the beginning of an earthquake with epicenter in Guerrero's coast, between Zihuatanejo, Guerrero and Punta Maldonado, Oaxaca.
The accelerometric system has got an exact time reference, it is generated by a global, satelital localization system (GPS), that records simultaneously with the seismic accelerations to study the evolution of the movement phases.
The recordered seismic accelerations are are processed in CIRES to observe their historical evolution, their energy distribution in different frequencies to determine the transference characteristic of the structure. The knowledge of the dynamic response evolution will permit to estimate their seismic security conditions.

SADE
SADE

Phantom of Fourier Espectro de Fourier


Centro de Instrumentación y Registro Sísmico, A. C.
Anaxágoras 814, Col Narvarte. C.P. 03020 Ciudad de México.
Tels:(55) 5687-4542, (55) 5687-4582
Fax:(55) 5669-2512 Email: correo@cires.org.mx
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