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Many of the houses were later merged, into 91. In the seventeenth century, almost all had four or five storeys. All the houses were shops, and the bridge was one of the City of London's four or five main shopping streets. The three major buildings on the bridge were the chapel, the drawbridge tower and the stone gate.
Animation showing the operation of a drawbridge. A drawbridge or draw-bridge is a type of moveable bridge typically at the entrance to a castle or tower surrounded by a moat.In some forms of English, including American English, the word drawbridge commonly refers to all types of moveable bridges, such as bascule bridges, vertical-lift bridges and swing bridges, but this article concerns the ...
Like the flying arch, the inverted arch is not usually used to support a load (with teh exceptions of the foundations of the piers and retaining walls, see below), as for a bridge, but rather to resist sideways, inwards loads. The conventional arch supports a vertical load downwards on the centre of the arch and translates this into forces both ...
An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. [1] Single-span bridges have abutments at each end that provide vertical and lateral support for the span, as well as acting as retaining walls to resist lateral movement of the earthen fill of the bridge approach.
Canton Viaduct is a blind arcade cavity wall in Canton, Massachusetts, built in 1834–35 for the Boston and Providence Railroad. [2]At its completion, it was the longest (615 ft [187 m]) and tallest (70 ft [21 m]) railroad viaduct in the world; today, it is the last surviving viaduct of its kind.
The construction of the houses on the Krämerbrücke was completed in 1486, following a fire in 1472 which destroyed nearly half of the city and the market stalls on the stone bridge. [ 3 ] [ 5 ] Sixty-two timber-framed buildings were built on each side of the stone bridge, creating a street between the two rows. [ 5 ]
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A swing bridge (or swing span bridge) is a movable bridge that can be rotated horizontally around a vertical axis. It has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the swing span (turning span) can then pivot horizontally as shown in the animated illustration to the right.