Integrated Investigation and FEM Analysis of Long Span Steel Bridges for Incremental Launching Method

Abstract

This study conducts an integrated investigation and FEM analysis of long span steel bridges employing the incremental launching method (ILM). Long span steel bridges are crucial for modern transportation, and ILM offers notable advantages in terms of construction efficiency and cost-effectiveness. The research analyses various bridge components and construction techniques to identify key design considerations and challenges. Structural stability and durability aspects are also assessed to ensure sustained bridge performance. FEM analysis, utilizing advanced numerical modelling, simulates the incremental launching process. The models incorporate bridge geometry, material properties, construction sequence, and external loads for accurate prediction of structural response. This analysis evaluates critical parameters, highlighting potential construction issues. Results offer insights into incremental launching's impact on long span steel bridge behaviour and performance, optimizing design and construction for improved safety and efficiency. This study enriches knowledge about long span steel bridges, supporting reliable and cost-effective construction methods for such structures.