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Fibre reinforced plastic-steel pipe-concrete column

A fiber-reinforced plastic and concrete column technology, applied in the field of composite columns, can solve problems such as inconvenient construction and single shape, and achieve the effects of accelerating construction, reducing weight, and increasing effective use area

Active Publication Date: 2008-02-06
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Utility Model Patent No. 99236299.7 provides "A New Type of Concrete-filled Steel Tube Column", in which the steel tube used for filling concrete is a special-shaped thin-walled steel tube, and restraint rods are arranged on each side of the special-shaped thin-walled steel tube. It solves the problem of the single shape of the existing steel pipe concrete column, but there is still the disadvantage that restraint rods need to be set to prevent the local instability of the thin-walled steel pipe, and the construction is often inconvenient.

Method used

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  • Fibre reinforced plastic-steel pipe-concrete column

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] As shown in Fig. 1, the FRP-steel pipe-concrete column provided by the present invention has a rectangular solid cross-section, mainly composed of a rectangular steel pipe 1, a round FRP pipe 3 and concrete 2 poured therein. (1) The steel pipe is welded by steel plates, and the two ends of the steel pipe are turned flat on a lathe to ensure the flatness and verticality of the two ends of the steel pipe. The geometric center coincides and the quality of the weld is guaranteed; (2) The round FRP pipe is made by winding method, and the fiber fabric is cut according to the size required by the design; use a brush to evenly apply the prepared bottom layer adhesive to the winding thin plastic film On the PVC pipe (mold) that plays the role of demoulding, the adjusted primer should be used up within the specified time, and the next step of construction can be carried out when the finger is dry; use a roller brush or a brush, and a scraper to dip in the preparation Apply a good...

Embodiment 2

[0021] As shown in Figure 2, the section of this FRP-steel pipe-concrete column of the present invention is a square solid structure, mainly composed of square steel pipes 4, round FRP pipes 3 and concrete 2 poured therein, the steel pipes are welded by steel plates, Round FRP pipe is made from FRP cloth on winding machine.

[0022] Its concrete preparation method is identical with embodiment 1.

Embodiment 3

[0024] As shown in Figure 3, the section of this FRP-steel pipe-concrete column of the present invention is a rectangular hollow structure, mainly composed of a rectangular steel pipe 1, a round FRP pipe 3 and concrete 2 poured between the rectangular steel pipe and the round FRP pipe. , the steel pipe is welded by steel plates, and the FRP round pipe is made of FRP cloth on a winding machine.

[0025] The specific manufacturing method is the same as that of Example 1, except that concrete is only poured between the rectangular steel pipe and the FRP pipe, and no concrete is poured in the FRP pipe.

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Abstract

A fiber reinforced plastic-steel tube-concrete column relates to a construction component. The fiber reinforced plastic-steel tube-concrete column is composed of a steel tube, a round fiber reinforced plastics tube and concrete in the plastic tube, and is characterized in that the steel tube of the concrete column is made by welding of a steel plate, the round fiber reinforced plastics tube is made by winding of fiber reinforced plastic cloth on a winding machine, the round fiber reinforced plastic tube is arranged at the center of the concrete column, the geometric center of the round fiber reinforced plastic tube is overlapped with that of the concrete column, and concrete is poured in the concrete column. The present invention has the advantages of high bearing capacity, large toughness, lightweight, sound plasticity and flexibility, impact and fatigue resistance, sound shockproof, etc.

Description

technical field [0001] The invention relates to a building component, in particular to a combined column composed of three different materials: FRP, steel pipe and concrete. Background technique [0002] At present, due to the advantages of flexible layout and large use space, the frame structure has received extensive attention from engineering. The frame column as the main component of the frame structure is generally an ordinary reinforced concrete column, that is, the steel cage is bound first, the formwork is supported, and the concrete is poured at last. The production of this traditional reinforced concrete column has long construction period, great difficulty, and The shortcoming of low efficiency, Chinese utility model patent No. 03248845.9 provides an improved "a reinforced concrete column", including reinforced concrete prefabricated components, steel bars, reinforced concrete columns are composed of multiple reinforced concrete cylindrical prefabricated component...

Claims

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Application Information

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IPC IPC(8): E04B2/56
Inventor 李帼昌
Owner SHENYANG JIANZHU UNIVERSITY
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