Design of concrete structure test device on bridge using geophone

The increase in population every year makes more and owners of motorized vehicles cars resulting full access to the highway, not only highway that experiences density while bridge is one factors due number pass at a certain time will be congested experience enough vibrations because load carried by different, greater held bridge, vibrates, therefore writer make an instrument using geophone sensor can measure how much vibration on analyze strong concrete works which often occurs density, with elastomer or rubber pads used between abutments placement feeding road reduce occur burden bridge. This tool use main components form sensors. Geophone converts ground motion into voltage, transducer movement very sensitive. A seismic energy, vibration, electric voltage measured accurately. In this study, it was found sensors find out amount deflection when vehicle crosses process data system microcontroller Arduino Uno displayed excel facilitate collection. From study concluded maximum 0.3 cm 0.003 meters 1045kg, meanwhile 2 tons 10 up Cilampeni Bridge Kopo Toll Bridge.