FUNCTIONAL JOINT OF BRIDGE Russian patent published in 1999 - IPC

FIELD: bridge-building technology. SUBSTANCE: this joint can be used for closing clearances between adjacent span structures of bridge. Functional joint has embedded components which are rigidly secured in parts of bridge being connected together. Rigidly fastened on embedded components are metal covering sheets which can slide relative to each other. One of metal sheets is made sectional so as to form bifurcation. Opposite metal sheet comes inside bifurcation. Clearance is filled with resilient insert which can be made of sponge rubber or porolon impregnated with rope grease. Value of clearance and extension of overlapping of sheets are determined according to relation brought forward in description of invention. Application of aforesaid embodiment of functional joint gives high reliability, as well as long service life and water-tightness. EFFECT: higher efficiency. 2 cl, 1 dwg