Cable-stayed bridges, also known as diagonal bridges, feature main beams directly supported by cables anchored to bridge towers. This structural system consists of pressurized towers, strained cables, and bent beam bodies, providing efficient load distribution and structural stability.

Cable-stayed bridges comprise three main elements:

• Main Beam: Typically constructed from concrete, steel-concrete composite, or steel structures
• Cable Tower: Primarily concrete structures, with steel-concrete or steel alternatives

Various span layouts accommodate different crossing requirements:

• Twin Tower Three-Span: Ideal for large river crossings with spans up to 300 meters
• Single Tower Double-Span: Suitable for small to medium rivers and urban channels
• Multi-Tower Systems: Three-tower four-span and multi-tower configurations for specialized applications

• Long-span capability exceeding 600 meters for steel structures
• Reduced main beam dimensions (1/50 to 1/200 span ratio)
• Enhanced wind stability compared to suspension bridges
• Simplified cantilever construction methodology

Multiple construction approaches including support construction, push construction, rotary construction, and cantilever assembly methods.