Bridge space radioactive concrete-filled steel tube bridge pier and construction method thereof

Abstract

A bridge space radioactive concrete-filled steel tube bridge pier comprises a flange, a plurality of bridge pier bottom stiffening plates, four bridge pier support beams, six tie beam stiffening plates, four pier top anchor plates and a plurality of tie beam stiffening plates. Four mounting positions in even distribution along the circumferential direction are reserved on the top surface of the flange; bottom walls of the four bridge pier support beams are mounted at the four mounting positions on the flange respectively; a tapered space is formed by encircling of the four bridge pier support beams, and the cross section of the tapered space is decreased gradually from top to bottom; one pier top anchor plate is mounted on the top wall of each bridge pier support beam; and a plurality of anchor bolt preformed holes in even distribution are reserved on each pier top anchor plate. A pile foundation of the bridge pier is centralized blow a bearing platform, and occupied urban space is small. Formwork-free pouring of bridge pier concrete pouring is achieved, and the bridge pier is convenient and efficient to construct, safe and rapid, excellent in structural behavior of rod pieces, higher in rigidity of a main beam, good in stability and the like. The invention further relates to a construction method of the bridge space radioactive concrete-filled steel tube bridge pier.

Description

technical field [0001] The invention relates to a bridge space radioactive steel tube concrete bridge pier and a construction method thereof. Background technique [0002] Traditional reinforced concrete bridges have the advantages of easy material selection, reasonable use of materials, good durability and fire resistance, low cost, not easy to rust, and low maintenance costs. The disadvantage of poor effect. Reinforced concrete bridge piers take up a lot of urban space in complex and multi-vehicle terrain, and are difficult to construct, have a long construction period, and have limited spanning capacity. [0003] At present, in the field of bridges, especially in the field of steel truss webs, the trusses and piers are generally separated, and the force is transmitted through the bottom plate in the middle. The problems in this method are as follows: 1. The force on the bottom plate between the truss and the pier is not clear, and the force transmission is complicated ,...

AI Technical Summary

Problems solved by technology

[0002] Traditional reinforced concrete bridges have the advantages of easy material selection, reasonable use of materials, good durability and fire resistance, low cost, not easy to rust, and low maintenance costs. Disadvantages of poor effect

Reinforced concrete bridge piers take up a lot of urban space in complex and multi-vehicle terrain, and the construction is difficult, the construction period is long, and the spanning capacity is limited

[0003] At present, in the field of bridges, especially in the field of steel truss webs, the trusses and piers are generally separated, and the force is transmitted through the bottom plate in the middle. The problems in this method are as follows: 1. The force on the bottom plate between the truss and the pier is not clear, and the force transmission is complicated , local stress concentration; 2. The shear bearing capacity of the concrete slab between the truss and the pier is small, and the fatigue resistance is poor; 3. The overall stiffness is poor

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