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Reinforced concrete pipe lattice column

A technology for reinforced concrete pipes and reinforced concrete columns, which is applied in the field of reinforced concrete pipe lattice columns, can solve problems such as damage and failure of lattice columns, and achieve the effects of improving bearing capacity, restraining deformation, and reducing the self-weight of the structure.

Active Publication Date: 2013-09-18
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional lattice column webs are often directly exposed to the outside world. If the material is FRP or steel, it will fail quickly under the action of fire, so that the lattice column will be destroyed in advance

Method used

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  • Reinforced concrete pipe lattice column
  • Reinforced concrete pipe lattice column
  • Reinforced concrete pipe lattice column

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Embodiment Construction

[0020] see Figure 1 to Figure 3 As shown, the reinforced concrete tubular lattice column of the present invention includes at least two hollow tubular columns 1, and each hollow tubular column 1 is at least connected to an adjacent hollow tubular column 1 through a web bar 2, and the periphery of the hollow tubular column 1 is also Cover a reinforced concrete column 3 . figure 1 The embodiment shown comprises two hollow pipe strings 1, and two hollow pipe strings 1 are connected by web rod 2, if comprise 3 or more than 3 hollow pipe strings 1 in other embodiments, each hollow pipe string 1 can be connected with one or Multiple adjacent hollow pipe strings 1 are connected by web rods 2, so that the overall strength of the hollow pipe string 1 is better.

[0021] The outer wall of the hollow column 1 is provided with a plurality of stiffening ribs 12 . The stiffeners 12 include intersecting longitudinal stiffeners 121 and circumferential stiffeners 122, the longitudinal stiff...

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Abstract

The invention provides a reinforced concrete pipe lattice column comprising at least two hollow pipe columns, wherein each hollow pipe column is at least connected with an adjacent hollow pipe column through a web member; a reinforced concrete column is also coated at the periphery of the hollow pipe column. The pipe lattice column disclosed by the invention is light in dead load, high in bearing capacity, and good in fire resistance; local buckling of the hollow pipe column can be delayed.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a reinforced concrete tubular lattice column. Background technique [0002] Fiber-reinforced composites (FRP) have the advantages of high strength, light weight, and corrosion resistance, so they are increasingly used in civil engineering. Conventional hollow interlayer FRP pipe concrete is a member formed by pouring concrete between two concentrically placed FRP pipes, which can be used in buildings, bridges and special structures in harsh environments such as oceans and humidity. However, the amount of FRP used in conventional hollow interlayer FRP tube concrete members is relatively large. Once a fire breaks out, the outer FRP tube will soften quickly, and the member will quickly reach the fire resistance limit under a high axial compression ratio. Therefore, under certain conditions, it is necessary to The outer surface of the hollow interlayer FRP pipe concrete is painted w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34
Inventor 郑永乾郑莲琼
Owner FUJIAN UNIV OF TECH
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