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Elastomeric bearing pads are the most economical solution used in construction of large span bridges and buildings. [1] [2] Elastomeric bearings are often used in applications other than bridges, for example, supporting buildings that are built on soil that may shift slightly and cause a concrete load to crack in the absence of a elastomeric ...
There are several different types of bridge bearings which are used depending on a number of different factors including the bridge span, loading conditions, and performance specifications. [2] The oldest form of bridge bearing is simply two plates resting on top of each other. A common form of modern bridge bearing is the elastomeric bridge ...
BS 5400-9.1:1983 Steel, concrete and composite bridges. Bridge bearings. Code of practice for design of bridge bearings. (This part of standard is partially replaced by BS EN 1337-2 , BS EN 1337-3 , BS EN 1337-5 and BS EN 1337-7 , and replaced by BS EN 1337-4 and BS EN 1337-6 but remains current) BS 5400-9.2:1983 Steel, concrete and composite ...
The total movement of the bridge deck is divided among a number of individual gaps which are created by horizontal surface beams. The individual gaps are sealed by watertight elastomeric profiles, and surface beam movements are regulated by an elastic control system. The drainage of the joint is via the drainage system of the bridge deck.
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers).For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete.
In engineering, span is the distance between two adjacent structural supports (e.g., two piers) of a structural member (e.g., a beam).Span is measured in the horizontal direction either between the faces of the supports (clear span) or between the centers of the bearing surfaces (effective span): [1]
Beam bridges are the simplest structural forms for bridge spans supported by an abutment or pier at each end. [1] No moments are transferred throughout the support, hence their structural type is known as simply supported. The simplest beam bridge could be a log (see log bridge), a wood plank, or a stone slab (see clapper bridge) laid
Attempts have been made to increase the safety of bridges with pin and hanger assemblies by adding some form of redundancy to the assembly. Retrofits that add redundancy to pin and hanger assemblies include adding a "catcher's mitt"—a short steel beam attached to the bottom of the cantilevered girder that extends out beneath the suspended girder to "catch" the suspended girder should ...