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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]
Prestressed concrete is a major advance in concrete engineering and has effectively been used in rigid frame bridge construction. [10] This is notable because it was already challenging to place standard reinforcing in a concrete rigid frame bridge. Prestressing the rebars is more difficult but was proven to still be feasible. [10]
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.
Most of the piers of modern bridges are made of reinforced concrete or prestressed concrete for larger structures. Two types of forms are mainly encountered: columns or walls. Each support can be composed of one or more walls or columns. The standard-shaped walls that can be found on most highways are represented in the illustration opposite.
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 ...
Cable-stayed bridge and Suspension bridge: 1,408 m (4,619 ft) Yavuz Sultan Selim Bridge, [2] Istanbul: Cantilever bridge: 549 m (Quebec bridge) 1042.6 m (Forth Bridge) Cantilever spar cable-stayed bridge: Clapper bridge: Covered bridge: Girder bridge: Continuous span girder bridge Integral bridge: Extradosed bridge: 1,920 m Arrah–Chhapra ...
This is a list of bridges of the Merritt Parkway, which is located in Fairfield County, Connecticut.. The 72 original bridges were designed by George L. Dunkelberger. Each bridge has a unique design that represents various 1930s architectural styles, such as Art Deco, Art Moderne, French Renaissance, Gothic, Neoclassicism, and Rustic. 23 of the bridges have been reconstructed in recent years ...