증속실험을 통한 강철도교의 동적응답특성 분석

초록

This experiment is performed to grasp dynamic response characteristics with increasing the speed of a diesel locomotive. Vertical accelerometer, lateral accelerometer are adhered to the bridge to the equal interval at the bridge. And bending strain gage and LVDT are adhered in center of bridge. Also, Rosette Strain Gage is adhered in center of web of support. First, the test vehicle is located in center and support of bridge for static loading. And dynamic response is measured through increasing speed by 10km/h from 5km/h to 90km/h from adhered sensor. Acceleration response characteristics are analyzed that ensue from position of measuring point and speed change of test vehicle. And the response characteristics of displacement and strain are analyzed by speed change.