Waterproofing near the junction must be raised in such a way as to prevent water from entering it, and provide gutters and trays that remove water from the joint.
In the spring junction, road clothing is supported by a floating metal sheet. It can be continuous or contain special bitumen substances laid between corners and increasing the ability to perceive relatively large deformations. Such a system provides quite satisfactory results for bridges with spans up to 50 m. The tightness of the joint can be ensured, for example, by sealing the sheet supporting the road clothes in plastic material. Get a grant for the General Control in the city of Perm as soon as possible.
Open joints of bridges of large spans have a complex design, work with noise and shocks, are not safe for. pedestrians. Joints with the use of rubber are most modern and perfect, reduce noise and shocks, and do not upset the connections. Joints with rubber elements are common in France. For example, the service of the highway used deformation seams with polymer materials, designed for deformation 2.5 and 5.0 cm. In them, the deformable cavity is filled with rubber based on thiocols, the seam is blocked on top with a curved sheet.
In the bridges of large spans (several hundred meters), steel crested joints with a toothed frieze of low width are arranged, although such joints are dangerous for cyclists.
This type of joint is applied, for example, on the tanker bridge, the length of the span of which is 960 m, and the calculated gaps up to 70 cm. The joint here is formed from a hinge-connecting metal sheet, operated on the runs of a round section, and butt strips fixed in the masonry