BRIDGE SUPPORT STRUCTURE Russian patent published in 2004 - IPC

FIELD: bridge building, particularly support structures for solid bridge spans.

SUBSTANCE: support structure includes sliding panel and metal sheet fixed to bridge pier under the panel and resilient support member arranged between panel and metal sheet and secured to metal sheet. Resilient support member is made as a stack of metal plates alternating with plates of elastic resilient material, preferably rubber, enclosing metal plates across the full surfaces thereof. Arranged on resilient support member is covering panel having depressions formed on lower and upper surfaces thereof. The first depression faces plate of elastic resilient material of resilient support member. Another one has depth of not less than 2.0 mm for receiving fluoroplastic sheet having holes or slots filled with lubricant. Lubricant contacts with sliding panel along polished, preferably stainless, surface or through metal sheet with polished surface connected to sliding panel. Length and/or width of polished metal sheet surface or sliding panel exceeds that of fluoroplastic sheet.

EFFECT: possibility of linear displacement of solid bridge span structure, increased reliability and service life due to reducing support structure height.

10 cl, 4 dwg