DYNAMIC RESPONSE ANALYSIS OF LONG SPAN CONTINOUS BRIDGE SUBJECTED TO HIGH-SPEED TRAINS

• Main Author: Intan Pitasari, Rayi
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/68991
• Institution: Institut Teknologi Bandung

There has been an increasing interest on the dynamic behaviour of high-speed train over the last few years. The burden resulted from the high speed can lead to dynamic effects on the bridge. Generally, all bridges accommodating high-speed train (over 200 km/hour) requires dynamic analysis. Long span continuous bridge on Jakarta - Bandung High-speed train project was chosen for this dynamic analysis study. The train axle weight is in accordance with the rules of Chinacode (TB 10621-2014 Code for Design of High – Speed Railway, China) and Eurocode (Eurocode NA to BS EN 1990:2003) as comparisons. This research aims to study the response of structure in the form of dynamic behaviour occurring on long span bridges resulted from the high speed trains on the high speed and pier stiffness/ height on the relevant dynamic parameter namely vertical acceleration (Deck Acceleration), vertical deformation and Dynamic Amplification Factor. Structure modelling was conducted by providing the variations of pier heights namely 25 m (existing) 45 m and 65 m. Meanwhile, the speed variations of the train used were 100 km/hour up to 450 km/hour. The analysis was done by time history with element programme and Midas software. The results of the analysis show that the value of vertical acceleration, vertical deformation and Dynamic Amplification Factor were still within the limit set by Chinacode and Eurocode rules.