Pylon of an Irregular Low Pylon Cable-Stayed Bridge: A Review

Low-tower cable-stayed bridges, as an emerging type of bridge structure, have been widely applied in bridge engineering both domestically and internationally in recent years. This paper reviews the research status and development trends of low-tower cable-stayed bridges. Firstly, it introduces the characteristics of low-tower cable-stayed bridges and their importance in bridge engineering. Subsequently, it analyzes in detail the diversity of tower forms in low-tower cable-stayed bridges, including single-column, double-column, portal, and innovative forms such as inclined-leg portal, inverted V-shape, inverted Y-shape, H-shape, diamond, etc. These towers not only vary in shape but also possess complex load-bearing capabilities. Meanwhile, this paper also outlines the design features of low-tower cable-stayed bridges, such as their graceful appearance, excellent performance, and convenient construction. Finally, it summarizes the main advancements in research on low-tower cable-stayed bridges in recent years, including structural design, evolution of tower forms, analysis of spatial stress distribution, and other research achievements, and looks forward to their future development trends.