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The Nine-turn bridge (Chinese: 九曲桥) or Zigzag bridge is one of the features of Chinese Gardens, where the bridge is designed to turn several times, so one can enjoy viewing different scenes. The bridge is usually made of stones or concrete with decorated guard rails , and the angles of the turns can be at right angles, at any other angle ...
Each pier is capped with a single beam, upon which sit the timber girders that span the bridge. The bridge has an open deck, with the railway set into timber sleepers. A metal walkway runs parallel to the bridge on its south side. Concrete retaining walls supported by steel posts, are placed underneath both ends of the bridge. [1]
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 ...
Finally, the concrete is placed and cured, freeing the falsework to be moved. In pre-cast bridges, the concrete segment is constructed on the ground, and then transported and hoisted into place. As the new segment is suspended in place by the crane, workers install steel reinforcing that attaches the new segment to preceding segments. Each ...
A concrete girder bridge pier during construction prior to installation of the bridge deck and parapets, consisting of multiple angled pylons for support (bottom), a horizontal concrete cap (center), and girders (top) with temporary wood bracing A quadruple compound pier supporting the fly-over at the traffic junction 24 Oktoberplein (Utrecht ...
Engineering experts say that while bridges have some built-in defenses against collisions, this one was likely too extreme to withstand. Why the Baltimore bridge stood little chance against a ...
Inverted arches have also been added to existing bridges, to reinforce them after their banks start to slide inwards. Such a repair was applied to The Iron Bridge in the 1970s. Inverted arches are often used in conjunction with retaining walls. The arch provides a foundation for the walls and can resist the sideways forces upon them.
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