Abstract
Abstract: The Muktiharjo Kaligawe railway bridge or BH 9 which located in KM 3+450 is truss bridge that has a special function,that is as a railway network where the BH 9 is a bridge with the steel frame type. Tests and analysis are done on two points of the bridge structures, those are in one third span of the bridge’s structure and another in the middle span of the bridge’s structure. The acceleration of vibration when the sensor accelerometer placed in one third part of the bridge’s structure influenced Y the most. While the acceleration of vibration when the sensor accelerometer placed in the middle part of the bridge’s structure influenced Z the most. The maximum acceleration in the one third part of the bridge structure where the Argo Anggrek train with the speed of 47 mph has the maximum acceleration towards X of 1.346270 m/s2, the maximum acceleration towards Y is 1.639314 m/s2, and the maximum acceleration towards Z is 1.315038 m/s2. Meanwhile the maximum acceleration where the accelerometer placed in the middle part of the bridge, Argo Anggrek train with the speed of 49 mph has the maximum acceleration toward X of 1.053043 m/s2, the maximum acceleration towards Y is 0.631594 m/s2, and the maximum acceleration towards Z is 1.191879 m/s2. The maximum acceleration when the accelerometer placed in the middle part of the bridge, Maharani train with the speed of 45 mph has the maximum acceleration towards X of 1.231041 m/s2, the maximum acceleration towards Y is 1.425204 m/s2, and the maximum acceleration towards Z is 1.319857 m/s2. Meanwhile the maximum acceleration when the accelerometer placed in the middle part of the bridge where Maharani train pass with the speed of 46 mph has the maximum acceleration towards X of 0.509838 m/s2, the maximum acceleration towards Y is 0.639036 m/s2, and the maximum acceleration towards Z is 1.073661 m/s2.
Highlights
The economic development in one country mainly depends on the infrastructure availability, including the availability of bridge
The maximum acceleration where the accelerometer placed in the middle part of the bridge, Argo Anggrek train with the speed of 49 mph has the maximum acceleration toward X of 1.053043 m/s2, the maximum acceleration towards Y is 0.631594 m/s2, and the maximum acceleration towards Z is 1.191879 m/s2
The maximum acceleration when the accelerometer placed in the middle part of the bridge, Maharani train with the speed of 45 mph has the maximum acceleration towards X of 1.231041 m/s2, the maximum acceleration towards Y is 1.425204 m/s2, and the maximum acceleration towards Z is 1.319857 m/s2
Summary
The economic development in one country mainly depends on the infrastructure availability, including the availability of bridge. The railway bridge is a crucial infrastructure for the railway network [1]. Railroad is a crucial infrastructure for the freight transportation which its eligibility should be treated and monitored well [2]. Vibration is the process of the change in the soil structure, which makes the soil moving. Sensor accelerometer is a proper device to measure acceleration, this thing is not always the same as the coordinate acceleration (the speed changes of devices in space), but the speed that related to the heavy burden experienced by the test mass located inside the frame of sensor accelerometer. Sensor accelerometer is a proper device to measure acceleration, this thing is not always the same as the coordinate acceleration (the speed changes of devices in space), but the speed that related to the heavy burden experienced by the test mass located inside the frame of sensor accelerometer. [3].
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