PARAMETRIC STUDY OF RAIL STRUCTURE INTERACTION IN BALLASTED TRACK TYPE HIGH-SPEED RAILWAY BRIDGES(CASE STUDY: JAKARTA-BANDUNG HIGH-SPEED TRAIN)

• Main Author: Amadeus Phan, Kenjiro
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/74149
• Institution: Institut Teknologi Bandung

In Indonesia, the construction of Jakarta-Bandung high-speed railway is underway, spanning about 142.3 km with over 80 km of elevated structures. Jakarta-Bandung high-speed railway project uses continuous welded rail (CWR) for its railway tracks. CWR is a type of railway track that is connected through welding to create a long and uninterrupted track. Since CWR is a continuous rail, any additional tension and deformation that occur in the rail and bridges accumulate and interact with each other, potentially affecting the overall performance of the rail and bridge system. This can lead to safety issues such as buckling or fractures in the CWR, even during operation. Therefore, to address these concerns, the Rail Structure Interaction phenomenon needs to be further examined. Rail Structure Interaction (RSI) is a complex phenomenon that occurs between railway tracks and structures when Continuous Welded Rail (CWR) is used on a railway bridge. Therefore, this research attempts to analyze the influence of various bridge parameters on the stress and displacement resulting from the RSI phenomenon. The data used in this study refers to the construction drawing of Jakarta-Bandung high-speed railway project. The analysis is conducted based on the UIC 774-3 standard as the main reference, which also complemented by several other standards. The analysis reveals that each bridge parameter has a different influence on the additional stress and displacement generated. Increasing the span length, increasing the number of spans, increasing the ballast stiffness, and reducing the pier height lead to an increase in tension occured, while increasing the span length, increasing the number of spans, reducing the ballast stiffness, and increasing the pier height result in an increase in displacement occured.