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If the spandrel is solid, usually the case in a masonry or stone arch bridge, the bridge is called a closed-spandrel deck arch bridge. If the deck is supported by a number of vertical columns rising from the arch, the bridge is known as an open-spandrel deck arch bridge. The Alexander Hamilton Bridge is an example of an open-spandrel arch ...
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 ...
The deck is connected to the arch by 12 pairs of vertical hangers at the arches and the deck intersection point, 60 m from the centre of the bridge, rigidly joined by a cross brace. Each arch is embedded at the ends in a reinforced concrete block (the smallest being 6 m long, 7 m high and 5 m wide) connected by means of a joint of 28 steel bars ...
By doubling the size of the arch, Paul Séjourné paved the way for the construction of large reinforced concrete arch bridges. The arrival of new construction techniques using steel, such as suspension bridges, prestressed concrete bridges, or cable-stayed bridges, abruptly marked the end of masonry bridge construction in the Western world.
Because both the arch and the tie are mainly subject to axial forces, their cross sections can be very small. Usually, transverse bending in the deck is bigger than bending in longitudinal direction. Therefore, a concrete deck that spans between the arches is a good solution for bridges with arch distances that are not too large.
The superstructure of Kurobe Dam in Japan rests on opposing concrete abutments Abutment for a large steel arch bridge Brick abutment supporting disused tramway over the Yass River in Yass, New South Wales Cream-colored concrete abutment gives vertical support to both the small iron rail bridge and earthen fill of the bridge approach embankment at Old Town Station Staten Island Railway - Staten ...
In this case, the height of the structure, measured between the top of the deck and the ground, is between the values a/3 and a/2, where a denotes the span of the arch, which is generally a semicircular or elliptical arch. [7] The thickness e of the pier depends solely on the span of the arches: a/10 < e < a/8.
The first section of the launch, the launching nose, is not made of concrete, but is a stiffened steel plate girder and is around 60% of the length of a bridge span, and reduces the cantilever moment. [3] The sections of bridge deck slide over sliding bearings, which are concrete blocks covered with stainless steel and reinforced elastomeric pads.