At present, bridges are divided into different types according to the stress system, and what are their main characteristics

At present, bridges are divided into different types according to the stress system, and what are their main characteristics

According to the stress system, bridges can be divided into beam bridge, arch bridge, suspension bridge, rigid frame bridge and composite system bridge. Among them, beam bridge includes simply supported beam, continuous beam and cantilever beam, and its main feature is that the internal force of main bearing structure (beam) is mainly bending; arch bridge mainly refers to simple system arch, that is, ordinary arch bridge, Its main bearing structure (arch ring) is mainly in compression; the main bearing structure (cable) of suspension bridge is mainly in tension; the main bearing structure (beam column combination) of rigid frame bridge (beam column consolidation) is mainly in bending compression; the composite system bridge (mostly tied arch and cable-stayed bridge) is mainly in tension, Of course, it may also be other forms). Most of the main load-bearing structures are composite forms (tied arch is arch and tie beam, cable-stayed bridge is cable and main beam)