DEVICE FOR REGULATING OPERATION OF BRIDGE SUPERSTRUCTURES Russian patent published in 2002 - IPC

FIELD: bridge and building structures; applicable in designing of structures including statically determined and nondetermined positive features without shortcomings of both. SUBSTANCE: device ensures taking of a part of longitudinal and transverse forces, bending moments acting on bridge superstructures and made in the form of combs from metal sheets entering each other. In this case, each comb is rigidly mounted on adjacent ends of superstructures, and space between comb sheets is filled with viscous substance. Novelty consists in that comb sheets are wedge-shaped to ensure increase of force arising in superstructure with rising temporary payload and forces decrease in reduction of said load. EFFECT: increased force arising in device for regulation of operation of bridge superstructures in rising of temporary payload and in force reduction with payload decrease. 2 dwg