Brunel's bridges over the entrance locks to the Cumberland Basin, Bristol Harbour.
A balloon flange girder is a form of vertical I-beam wrought iron plate girder, where the top flange, instead of being a simple flat plate, is extended into a hollow tube. When a girder is subjected to a positive bending moment the top flange acts in compression making a flat plate flange more susceptible to local buckling than the balloon flange is.
Surviving section of Chepstow Railway Bridge girder, now at Brunel University, Uxbridge
This type of girder was rarely used, its only common user being Isambard Kingdom Brunel in the 1840s and 1850s.
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A balloonflangegirder is a form of vertical I-beam wrought iron plate girder, where the top flange, instead of being a simple flat plate, is extended...
the ancestor of the plate girder bridge Box girder bridge — an evolution of the plate girder bridge Balloonflangegirder Pin and hanger assembly Trestle...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Hamoaze—the estuary of the tidal Tamar, Tavy and Lynher. The bridge (of bowstring girder or tied arch construction) consists of two main spans of 455 ft (139 m)...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
iron trusses 100 feet (30.5 m) above the water, with conventional plate-girder approach spans. This gives it a total length of 2,187.5 feet (666.8 m)....
navvies hoisted the columns, girders and other parts into place. As soon as two adjacent columns had been erected, a girder was hoisted into place between...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
suspension rods were hung from the links in the chains and large girders hung from these. The girders on either side then support the deck, which is 3 feet (0...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
the hull to be massively redundant in strength. Ten longitudinal iron girders were installed along the keel, running from beneath the engines and boiler...
the right (the west) and pass out of sight beneath Bath Road Bridge, a girder bridge that carries the A4 out of the city. The first island platform comprises...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Sir John Hawkshaw, comprising nine spans made of wrought iron lattice girders, which opened in 1864. The chains from the old bridge were re-used in Bristol's...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
Westport Canal Other engineering and building Atmospheric railway Balloonflangegirder Baulk road Broad gauge Brook House, Steventon Crew's Hole tar works...
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