Large-span bridge pier and deck reinforced type connecting unit

Abstract

The invention discloses a large-span bridge pier and deck reinforced type connecting unit which comprises prefabricated bridge piers and square bridge masts. A deck and the bridge piers are each of asteel-concrete structure, the sectional shape of the deck is matched with that of the bridge piers, built-in steel plates between the deck and the bridge piers are connected through threaded short ribs during connection, and the strength and stability of the joints are improved. The lower portion of the deck between two spans is reinforced by a concrete filled steel tube truss which is arranged between the two bridge piers, external steel tubes are welded, truss rods are welded towards the two sides obliquely, the steel plates are welded and connected to the other ends of the truss rods, the connecting steel plates are arranged on two rectangular ribs of the double-T-type deck correspondingly to have a supporting effect, and supporting structures are evenly distributed between the spans. Since the stable mechanical performance of the steel tube truss and the triangular shape, the overall strength and stability of the bridge are improved greatly, and the connecting unit is suitable forthe development in the technical field of bridge construction.

Description

technical field [0001] The invention relates to a bridge, in particular to a reinforced connection unit for a long-span pier column and a bridge deck. Background technique [0002] Bridges are buildings built for roads to cross natural or artificial obstacles. On highways and railways, bridges are often the bottlenecks that contain traffic loads and limit the passage of overweight vehicles, such as in chemical, petroleum, electric power, and metallurgy. And construction and other fields, there will be large-scale equipment or component transportation, which is often restricted because it exceeds the design load of the bridge. Although some equipment and components can be transported in batches by disassembly and assembly, but when the equipment or components are integral In some cases, the entire equipment or components cannot be disassembled, which will exceed the bearing capacity of the bridge, making the transportation of the integral equipment and components difficult, a...

AI Technical Summary

Problems solved by technology

[0002] Bridges are buildings built for roads to cross natural or artificial obstacles. On highways and railways, bridges are often the bottlenecks that contain traffic loads and limit the passage of overweight vehicles, such as in chemical, petroleum, electric power, and metallurgy. And construction and other fields, there will be large-scale equipment or component transportation, which is often restricted because it exceeds the design load of the bridge. Although some equipment and components can be transported in batches by disassembly and assembly, but when the equipment or components are integral In some cases, the entire equipment or components cannot be disassembled, which will exceed the bearing capacity of the bridge, making the transportation of the integral equipment and components difficult, and due to the restrictions of the roads or buildings around the foundation, it is difficult to expand the foundation. The scope is expanded, and it is difficult to achieve a substantial increase in its bearing capacity

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