| 摘要 |
A system for examining safety of a bridge is provided to examine deformation or subsidence of the bridge caused by vibration or load applied to an upper plate of the bridge by measuring gap between a supporting stand and the upper plate. A system for examining safety of a bridge comprises a pier(10), an upper plate(20), a height measuring unit(30), a supporting stand(40), a gap measuring unit(50), an arithmetic unit, and an output unit. The gap measuring unit is composed of a rack gear, a pinion gear, and an angle sensor and measures the gap change between the upper plate and the supporting stand. The arithmetic unit is connected with the height measuring unit and the gap measuring unit, and calculates data value outputted from the angle sensor of the height measuring unit and the gap measuring unit to estimate deformation of the upper plate and height change of the upper plate. The output unit outputs deformation value of the upper plate according to the height change of the upper plate. |
