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Classification of Girder Bridge
2015-01-22 13:44
Classification of Girder Bridge
Before we talk about a lot of expertise on the bridge cranes, gantry cranes, bridge machine, but they have little understanding of the construction of facilities, then by the Central Construction Machinery engineer for everyone to explain the classification beam bridge.
Bridges can be divided simply supported beam bridge, continuous beam bridge and cantilever bridge.
A simply supported beam bridge: the main beam simply supported on piers, free pier displacement affected. Abdominal solid steel cable bridge girder structure is simple, easy to design; the construction of the bridge can be used self-propelled machine or a joint bridge girder erection once successful. But simply supported beam bridge each hole is not continuous with the vehicle at the time by jumping off the seam will produce, improve the speed of impact. Therefore, the current tends to do to become the main beam simply supported, and the deck made of a continuous form. Simply supported beam bridge with the span increases, the main beam internal forces will increase sharply, reflective material will accordingly increase sodium, which generally do not have long-span bridge simply supported beam.
2, continuous beam bridge: the main beam is continuously supported on several piers. When the load on the different sections of the main beam and some positive moments, and some have negative moment, and the moment of absolute value smaller than those in the same span simply supported beam bridge. Thus, the amount of material can save the main beam. Continuous Beam Bridge is usually 3 to 5 holes will be made a joint, no deck seams within a joint, driving along more appropriate. Continuous beam bridge construction, you can set up the first hole into the main beam by simply supported beam then interconnected into a continuous beam. Continuous beam foundation for better conditions in general, larger span bridges. 1966 bridge built in the United States aristo Leah is currently the largest span steel truss girder bridge, its span of 376 meters.
3, cantilever bridges: Bridges also known as outriggers. Flapper door is simply supported beam to one or both ends of the short arm cantilevered bridge. This bridge has a single or double cantilever bridge cantilever bridge. A cantilever beam over the same length of the main span girders for long is more difficult on the appropriate construction and installation.
Before we talk about a lot of expertise on the bridge cranes, gantry cranes, bridge machine, but they have little understanding of the construction of facilities, then by the Central Construction Machinery engineer for everyone to explain the classification beam bridge.
Bridges can be divided simply supported beam bridge, continuous beam bridge and cantilever bridge.
A simply supported beam bridge: the main beam simply supported on piers, free pier displacement affected. Abdominal solid steel cable bridge girder structure is simple, easy to design; the construction of the bridge can be used self-propelled machine or a joint bridge girder erection once successful. But simply supported beam bridge each hole is not continuous with the vehicle at the time by jumping off the seam will produce, improve the speed of impact. Therefore, the current tends to do to become the main beam simply supported, and the deck made of a continuous form. Simply supported beam bridge with the span increases, the main beam internal forces will increase sharply, reflective material will accordingly increase sodium, which generally do not have long-span bridge simply supported beam.
2, continuous beam bridge: the main beam is continuously supported on several piers. When the load on the different sections of the main beam and some positive moments, and some have negative moment, and the moment of absolute value smaller than those in the same span simply supported beam bridge. Thus, the amount of material can save the main beam. Continuous Beam Bridge is usually 3 to 5 holes will be made a joint, no deck seams within a joint, driving along more appropriate. Continuous beam bridge construction, you can set up the first hole into the main beam by simply supported beam then interconnected into a continuous beam. Continuous beam foundation for better conditions in general, larger span bridges. 1966 bridge built in the United States aristo Leah is currently the largest span steel truss girder bridge, its span of 376 meters.
3, cantilever bridges: Bridges also known as outriggers. Flapper door is simply supported beam to one or both ends of the short arm cantilevered bridge. This bridge has a single or double cantilever bridge cantilever bridge. A cantilever beam over the same length of the main span girders for long is more difficult on the appropriate construction and installation.
