Double-limb thin-wall T-shaped pier

Abstract

The invention discloses a double-limb thin-wall T-shaped pier which comprises a bearing platform base, U-shaped columns and a bent cap. The U-shaped columns are arranged between the bearing platform base and the bent cap in pairs, and staggered openings of the U-shaped columns are oppositely formed to form hollow thin-wall pier columns. The double-limb thin-wall T-shaped pier has the beneficial effects that the double-limb thin-wall T-shaped pier is split into the bent cap and the two U-shaped columns, the bent cap and the two U-shaped columns are prefabricated and machined in a factory through mechanical line production, the U-shaped columns can be prefabricated in a supine mode and are convenient to manufacture, store and transport, and the integral double-limb thin-wall T-shaped pier can be assembled in the factory. The bent cap and the U-shaped columns are disassembled, prefabricated and assembled into the hollow component, so that the structural strength of the hollow component isguaranteed, and 30-40% of raw materials are saved. During on-site installation, mechanical hoisting can be adopted, the on-site operation time is less than 3 days, and the on-site operation time is greatly shortened compared with that of an original cast-in-place pier stud bent cap which needs to be operated for more than 25 days, so that the time of road traffic and urban environment influence is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a double-leg thin-walled T-shaped pier. Background technique [0002] The pier is mainly composed of a top hat or hat beam and a pier body. The abutment is mainly composed of a top hat and an abutment body. The function of the top hat or hat beam is to transfer the large and concentrated force transmitted from the bridge span support to the pier body and platform body in a dispersed and uniform manner, so the top hat has a higher strength requirement. In addition, the top hat and the hat beam must have a larger plane size to provide the necessary working surface for the construction of the beam and maintenance and repair. The pier body and abutment body are the main structures supporting the bridge span, not only bear all the loads from the bridge span structure, but also directly bear various loads such as earth pressure, water impact force, ice pressure, ship impa...

AI Technical Summary

Problems solved by technology

[0003] Bridge piers can be divided into thin-walled piers, flexible piers, column piers and piled piers, and the existing thin-walled piers with reinforced concrete include three types: concrete thin-walled piers, double-walled piers and V-shaped piers. It saves materials and reduces the self-weight of the pier. At the same time, the double-walled pier can increase the stiffness of the pier, reduce the negative bending moment of the main girder fulcrum, and increase the beauty of the bridge. However, the existing pier needs to be poured on site during construction, and before pouring, need The formwork and support are erected, and the formwork and support must be dismantled after reaching the age. The pier still needs to be maintained for a long time. The pier column, cap beam and top cap must be constructed separately, resulting in a long construction period and a large demand for construction sites. , has a greater impact on the traffic along the road and the urban environment

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