SYSTEM FOR MEASURING AMOUNT OF MOVEMENT OF MOVABLE SUPPORT FOR BRIDGE

摘要

Fiber Bragg Grating Sensor (FBG sensor) or electrical resistance strain gages for use with a plurality of movable fulcrum of By measuring the amount of movement in batches in the bridge superstructure, whether the operation of the bridge due to the influence of temperature can quickly see, over the span by foot or by operation behavior for bridges that can quickly and accurately measure base (Movable support) The amount of movement measurement system provides. ; amount of movement of the movable base instrumentation systems for bridges, shift or a plurality of movable base formed on the piers (Movable Support); A plurality of movable support is provided to each of the plurality of detecting the amount of movement of the movable support for each fiber Bragg grating (FBG) sensor; A plurality of fixture devices to install each of the plurality of optical fiber Bragg grating sensors in each operating base (Jig); And connecting the plurality of fiber Bragg grating sensors in one line, for transmitting a plurality of movable shift amount of the receiving data transmitted from the fiber Bragg grating sensor optical fiber cable; And the bridge is provided at the upper position, comprising: a terminal block for an optical fiber Bragg grating sensor receiving the end portion of the optical connector of the optical fiber cable is connected, the amount of movement of the movable support by a plurality of the movable support can be measured collectively from the bridge superstructure .