Search results
Results from the WOW.Com Content Network
A expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials. They are commonly found between sections of buildings , bridges , sidewalks , railway tracks , piping systems , ships , and other structures.
Pin and hanger assembly. A pin and hanger assembly is used to connect two plate girders of a bridge.These assemblies are used to provide an expansion joint in the bridge. One beam (the anchor span) is set on a pier with a short section cantilevered out toward the next pier.
The omission of the expansion joint removes a pathway for the penetration of chloride-bearing road salts to the bridge's sub-structure. In the United Kingdom there is a presumption that most new short to medium length bridges will be of the integral type. [citation needed] An early example of an integral bridge is masonry arch bridge.
The Braga Bridge is a continuous truss bridge. It was the fourth longest span of this type when it was completed in 1966. This list of continuous bridge spans ranks the world's continuous truss bridges in two listings: The first is ranked by the length of main span (the longest length of unsupported roadway) and the second by the total length of continuous truss spans.
The bridge design submitted by the winning team is an efficient solution that utilizes a shallow superstructure and a 350' long-span design to minimize the number of piers, provide a sleeker ...
“Whenever a design code is written, decisions have to be made about what the most extreme conditions are,” he said. Maryland Gov. Wes Moore said the bridge was "fully up to code."
An expansion joint which allowed for a maximum thermal movement of ± 835 millimetres (32.9 in) was also provided and located inside the approach span. The bridge parapets are of a special design by Hong Kong standards, comprising high-tension steel strands anchored on metal posts. [25]
An expansion bearing on the Queen Elizabeth II Metro Bridge. A bridge bearing is a component of a bridge which typically provides a resting surface between bridge piers and the bridge deck . The purpose of a bearing is to allow controlled movement and thereby reduce the stresses involved.