What are the bridge forms?

The bridge forms mainly include: beam bridge (simply supported beam, continuous beam and rigid frame bridge), arch bridge (simple system arch is bare arch and composite system arch), suspension bridge (suspension bridge) and composite bridge (cable-stayed bridge and composite system arch bridge). ).

The advantage of the beam bridge is that the stress is clear and the construction technology is mature, but the disadvantage is that the section size is large and there are many consumables (if the span is large).

The advantages of arch bridge are beautiful appearance and great bearing capacity potential, but the disadvantages are that it requires good foundation conditions (large horizontal reaction), high stability requirements (large span) and complicated construction (concrete filled steel tubular arch bridge with support is much better).

The advantages of suspension bridge are beautiful appearance and great momentum, but the disadvantages are low stiffness and high requirements for the foundation at the anchorage (and large horizontal force).

The advantage of composite system bridge is that it integrates the advantages of various bridges, but the exact point is that the force is generally not clear enough and it is not suitable for manual calculation (it doesn't matter now).