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Concrete-filled steel tube pier

A steel tube concrete and concrete technology, applied in the direction of bridges, bridge parts, bridge materials, etc., can solve the problems of affecting disaster relief, long repair time, difficult repair, etc., and achieve the effect of alleviating urban traffic congestion, short construction period and fast construction

Pending Publication Date: 2019-04-05
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing concrete-filled steel tube piers are prone to shear failure and ultra-low cycle fatigue cracks under actual earthquakes. It is difficult to repair after the earthquake or the repair time is very long, which seriously affects disaster relief and post-earthquake emergency and normal use.

Method used

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  • Concrete-filled steel tube pier
  • Concrete-filled steel tube pier
  • Concrete-filled steel tube pier

Examples

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as Figure 1-Figure 5 As shown, the steel pipe concrete bridge pier provided in this embodiment includes a beam 100, two or more pier columns 200 located below the beam 100 for supporting the beam 100, and a tie beam 300 connected between two adjacent pier columns 200, wherein , the number of piers 200 can be set according to actual needs, and in this embodiment, two piers 200 are taken as an example for illustration.

[0040] The tie beam 300 includes a tie beam main body 310 arranged horizontally and tie beam energy dissipating components 320 fixedly connected to both ends of the tie beam main body 310 , that is, there are two tie beam energy dissipating components 320 . The tie beam main body 310 includes a first steel pipe 311, a first hose inner core 312 inserted in the first steel pipe 311, a first concrete 313 filled between...

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PUM

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Abstract

The invention provides a concrete-filled steel tube pier. The pier includes a crossbeam, pier columns and a tie beam; the tie beam includes a tie beam main body and a tie beam energy consumption assembly; the tie beam main body includes a first steel tube, a first soft steel inner core, first concrete and a first connection board; the tie beam energy consumption assembly includes a second steel tube, a second soft steel inner core, a first PVP film, second concrete and a second connection board; and the second connection board is fixedly connected to the corresponding first connection board through bolts. Through the arrangement of the tie beam, the intensity and rigidity of the double column piers in transverse direction of a bridge can be enhanced, the tie beam yields before the pier under the action of earthquake, so that a plastic hinge can be formed, earthquake energy can be dissipated, damage and destruction processes of the pier can be delayed, and relatively good earthquake-proof performance can be achieved; and as the fixed connection of the connection boards can be realized through the bolts, the energy consumption assembly can be rapidly replaced after earthquakes, so that rapid repairing can be realized.

Description

technical field [0001] The invention relates to a bridge pier structure, in particular to a steel pipe concrete bridge pier. Background technique [0002] Many earthquakes at home and abroad have shown that bridge structures, as an important part of the traffic lifeline, are of great significance to post-disaster first aid and restoration and reconstruction. However, traditional bridge piers mostly use reinforced concrete structures, and reinforced concrete bridge piers are self-heavy, poor in ductility, difficult to construct, long in construction period, difficult to repair, and high in cost. Restoration will cause great difficulties and huge indirect losses to disaster relief after the earthquake. Therefore, the realization of bridge restorability has great research value. [0003] With the rapid development of modern cities in China, there are more and more interchanges and viaducts, and the application of concrete filled steel pipe piers is becoming more and more exten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D101/24E01D101/30
CPCE01D19/02E01D2101/268Y02A30/30
Inventor 孙伟李卉李海锋
Owner HUAQIAO UNIVERSITY
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