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Prefabricated segmental assembling pier in the form of component combination for the bottom segments

A combined form and segment technology, used in the erection/assembly of bridges, bridges, bridge construction, etc., to prevent lateral shear displacement, reduce structural damage, and facilitate fabrication and construction.

Inactive Publication Date: 2019-01-15
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use new materials including concrete and reinforcement, use new concrete materials such as ECC for the bottom sections or use new reinforcement such as SMA inside to improve its self-resetting and other seismic performance, but these are not from the design form of the structure go up to solve

Method used

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  • Prefabricated segmental assembling pier in the form of component combination for the bottom segments
  • Prefabricated segmental assembling pier in the form of component combination for the bottom segments
  • Prefabricated segmental assembling pier in the form of component combination for the bottom segments

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Embodiment Construction

[0014] combine figure 1 , a prefabricated segmental assembled bridge pier in which the bottom segment adopts the form of component combination, mainly including a bearing 1 poured together with a small-diameter pier column 2, a solid pier body, a hollow segmental pier body 3, a steel cage, and a prestressed tendon 4; Reinforcement cages are respectively arranged in each pier column, and the reinforcement cage of pier column 2 poured together with cap 1 extends to the inside of cap 1 and is welded with the steel bars inside cap 1, and the hollow segment pier body 4 and cap 1 The consolidated small-diameter pier columns 2 are bonded by high-strength grouting materials to form the bottom section of the entire pier. Three prestressed tendons 4 are arranged along the diameter direction of the circular cross-section, and the bottom is anchored in the cap 1. All sections They are all connected by four prestressed tendons and assembled into a bridge pier, and the prestressed tendons 4...

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Abstract

The invention provides a prefabricated segmental assembling pier in the form of component combination for the bottom segments. The prefabricated segmental assembling pier includes a bearing cap, a small-diameter pier column, hollow segmental pier bodies, a prestressed steel bars and a plurality of solid pier bodies. The bearing cap is fixed. The lower end of the small-diameter pier column is fixedwith the bearing cap, the hollow segmental pier bodies are arranged along the circumference of the small-diameter pier column and are fixed with the small diameter pier column. The solid pier bodiesat the lowest end are arranged on the small diameter pier column, and the hollow segment pier bodies, the upper solid pier body is arrange on the lower solid pier body, the prestressed steel bars respectively pass through the solid pier bodies, the hollow segment pier bodies and are fixed on the bearing cap or respectively pass through the solid pier bodies, and the small diameter pier column andare fixed on the bearing cap.

Description

technical field [0001] The invention relates to a bridge technology, in particular to a prefabricated section assembled bridge pier in which the bottom section adopts component combination form. Background technique [0002] Compared with integral cast-in-place bridge piers at the bridge construction site through erection of tripods and formwork erection for integral casting of bridge piers, the construction of prefabricated bridge piers is to divide the bridge piers into several sections, which are prefabricated in the prefabrication factory in advance, and then Transported to the construction site and assembled by means of prestressed tendons to form a whole bridge pier column. Prefabricated segmental piers are more and more widely used in the substructure of bridges due to their short construction period, low restrictions on the construction site, low impact on the surrounding environment, high bearing capacity and durability. [0003] Under the action of earthquake, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00
Inventor 张于晔翟勇马煜薛赛男
Owner NANJING UNIV OF SCI & TECH
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