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Hysteresis Model of Low-rise Steel-frame Building and Its Seismic Performance
Hirofumi Aoki,Katsutoshi Ikeda 한국강구조학회 2006 International Journal of Steel Structures Vol.6 No.5
The development of an active sensing node has brought the traditional impedance-based structural health monitoring (SHM)technique to a new paradigm. The active sensing node consists of a miniaturized impedance measuring device (AD5933), amicrocontroller (ATmega128L), and a radio frequency (RF) transmiter (XBee). A macro-fiber composite (MFC) patchincluding structural interrogation, data acquisition, signal procesing, and damage diagnostic is being performed at the sensorlocation by the microcontroller. The RF transmitter is used to comunicate the current status of the host structure. To validatethe feasibility of the proposed active sensor node, two kinds of example studies are carried out: (a) corosion detection on analuminum beam and (b) lose bolt inspection on a bolt-jointed structure.