BRIDGE BEARING WITH APPARATUS FOR MEASUREMENT BASED ON FBG SENSOR

摘要

PURPOSE: A bridge bearing with a measurement apparatus based on an FBG(fiber bragg grating) sensor is provided to enable the easy and simple installation of a jig having a measurement sensor. CONSTITUTION: A bridge bearing with a measurement apparatus based on an FBG sensor comprises a guide block, a bearing block, a disk, a spring(50), a cylindrical jig(60), a measurement sensor, and a controller(80). The guide block is fixed to the bottom of a bridge upper deck. The bearing block is inserted into the opened bottom of the guide block. The spring is arranged between the edge of the guide block and the bearing block. The jig is inserted between the spring and the bearing block. The measurement sensor measures the displacement of the jig. The controller calculates the horizontal displacement of the bridge upper deck by receiving the displacement information of the jig from the measurement sensor.