The arch ribs were erected in section by travelling crane; each arch was temporarily erected at the contractor s works.
12.
Initially, as in some of the continental cathedrals, the interior was decorated with designs emphasizing the arch ribs and portal components.
13.
The outer voussoirs of the arch rib are built of alternating bricks and ashlar stones, while the rest of the arch vaults consists entirely out of bricks.
14.
George W . Buck designed the original skew arch bridge over Fairfield Street with ten cast iron arch ribs as part of a long brick arch viaduct topped with open stonework parapets.
15.
To avoid a clearance problem, the road deck was suspended below the arch ribs on hangers, an idea put forward by George Leather, 1787 1870, a Leeds engineer.
16.
The first introduction of the pointed-arch rib took place at Durham Cathedral and pre-dated the vaulting of compartments of varying shapes seen at the Abbey of St . Denis.
17.
The aqueduct has five sections, each long, held together by bolts and supported by six cast iron arch ribs, each in two sections and joined at the centre of the arch.
18.
He designed three-hinged arches in which the deck and the arch ribs were combined, to produce closely integrated structures that evolved into stiffened arches of very thin reinforced concrete and concrete slabs.
19.
This prestressing of the steel allowed a much higher proportion of its ultimate strength to be utilized, allowing, in turn, the use of smaller and lighter arch ribs and a less massive substructure.
20.
The bridge comprises sandstone abutments and wing walls, with four laminated timber arch ribs of 85 foot span, set in cast iron sockets and supporting a timber deck carrying a roadway 18 feet wide.
