天津桥梁英文介绍PPT精选.pptVIP

and which high of downstream side arch is 39m, arch plane extroversive tilt angle of 18 degrees, the centerline parabolic arches, Section inverted trapezoidal form, the entire arch of variable section. The full width of driveway is 24m; Sidewalk in the side of large arch has changed by the curve from 3.0m width in the bridge starting to 11.5m width in the middle * of the main span,sidewalk in the side of small arch has changed by the curve from 3.0m width in the bridge China-Japan Joint Seminar on Steel and Composite Bridges 95 starting to 8.5m width in the middle of the main span. Hollow beam width of 5.5 meters has been designed in the main span between the driveway and sidewalk. * * Jiefang Bridge If you were to take a boat trip on the Haihe river, you would likely hear the guide tell you that this bridge, which runs from Tianjin Station to the old British Concession area, was designed by Gustave Eiffel – he of tower fame – and, as such, is cherished as the most historic bridge in Tianjin. This, though, is a claim that few historians can actually verify. Nevertheless, it is still an interesting structure, and, having been built in 1927, it is the oldest bridge in Tianjin that is still open to road traffic.. * * Jiefang Bridge The bridge itself is a less than inspiring structure. It has a steel frame held together with rivets, which opens to allow river traffic to pass beneath. This traffic is generally not that heavy. In fact, for almost 25 years the bridge did not open at all because of rusting girders and broken machinery. * * Jiefang Bridge However, after extensive reconstruction work, it opened again in 2008 amid much fanfare. Because of its central location Jiefang Bridge is a great spot to snap pictures of the river itself and the fringes of the British Concession. * Bei’an Bridge This is the best known and one of the most used bridges in the city. At first glance, it would be easy to assume that it were left over from the colonial era, particularly as