BRIDGE SUPERSTRUCTURE Russian patent published in 2003 - IPC

FIELD: construction engineering, applicable in bride construction, particularly, timber bridges. SUBSTANCE: bridge superstructure includes joined by bridge road main timber stiffening trusses formed by upper and arched lower booms with system of posts and braces. Novelty consists in that bridge superstructure has additional carrying structured in form of intermediate flexible arcs supporting transverse girders of bridge road under which posts are installed resting on intermediate flexible arcs. Installed between transverse girders in longitudinal direction and over every transverse row between posts are vertical ties, and horizontal ties are installed in plane of upper booms of stiffening trusses and lower booms of transverse girders in longitudinal and transverse directions. EFFECT: reduced consumption of materials and cost of superstructure, increased rigidity of bridge and higher its performance. 6 dwg