Fiber reinforce plastic (FRP) combination structure frame where integral type node is adopted and construction method thereof

A combined structure and integral technology, applied in building construction, building material processing, construction, etc., can solve the problems of unguaranteed joint strength and difficulty in adding steel prestressed tendons, so as to increase construction flexibility and improve bearing capacity. Force and stiffness, the effect of avoiding the use of formwork

Inactive Publication Date: 2012-10-24
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An object of the present invention is to provide an FRP composite structure frame using integral nodes, which is used to solve the problem that it is difficult to add steel bones or arrange prestressed tendons in the existing steel tube concrete frame structures, and the joint strength cannot be guaranteed; Another object of the invention is to provide a construction method for FRP composite structural frames using integral joints

Method used

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  • Fiber reinforce plastic (FRP) combination structure frame where integral type node is adopted and construction method thereof
  • Fiber reinforce plastic (FRP) combination structure frame where integral type node is adopted and construction method thereof
  • Fiber reinforce plastic (FRP) combination structure frame where integral type node is adopted and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] like figure 1 As shown, the FRP composite structural frame with integral joints is composed of FRP concrete-tube composite beams 1 and FRP concrete-pipe composite columns 2. The two are fixedly connected by the integral node 3 at the intersection, the FRP concrete tube composite column 2 is composed of FRP tube filled with concrete, the FRP tube concrete composite beam 1 is composed of FRP tube filled with concrete, and the FRP tube concrete composite beam 1 has a shear resistance key to facilitate connection to the floor; see figure 2 , the FRP integral node 3 is fastened together by two node monomers 4 and then fixedly connected by bolts. Each node monomer 4 is formed by the intersection of a vertical half-pipe 5 and a horizontal half-pipe 6. The vertical half-pipe 5 The two longitudinal end surfaces of the vertical half-pipe 5 respectively extend outwards to form connecting ears 7, and there are bolt holes on the connecting ears 7, and the upper and lower two ends ...

Embodiment 2

[0032] like Image 6 As shown, in this embodiment, the FRP tube concrete composite column 2 is provided with a cross-shaped steel 12, and the cross-shaped steel 12 passes through the vertical pipe of the integral node 3; the FRP tube concrete composite beam 1 is provided with an H-shaped steel 11, and the H-shaped steel 11 passes through the transverse pipe of the integral node 3, and the FRP pipe of the composite beam 1 is provided with a concrete exhaust port 13. like Figure 7 shown. Other structures are the same as in Embodiment 1.

[0033] The construction method of this embodiment:

[0034]Position the cross-shaped steel 12 in the composite column on the ground floor, bind the steel bars, put the FRP pipe with a high design height on the outside of the two, and then pour concrete into the pipe. The FRP pipe can not only share the load with the steel concrete, but also serve as a formwork when pouring concrete role. At this time, the cross-shaped steel should be high...

Embodiment 3

[0037] Since the integral node 3 in this implementation is formed by buckling two node monomers 4, the FRP tube concrete composite beam 1 is provided with prestressed tendons 10, such as image 3 As shown, the prestressed tendon 10 passes through the transverse pipe of the integral node 3. During construction, the two node monomers 4 are buckled outside the prestressed tendon 10, so that the prestressed tendon 10 can be realized from the integral node 3 in the transverse direction. Through the pipe, the connection at the node is more stable, and the node is stronger. Other structures are the same as in Embodiment 2.

[0038] The construction method of this embodiment:

[0039] Position the cross-shaped steel 12 in the composite column 2 on the ground floor, bind the steel bars, put the FRP pipe with a high design height on the two, and then pour concrete into the pipe. The role of the template. At this time, the cross-shaped steel 12 will be higher than the node of the firs...

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Abstract

The invention relates to a fiber reinforce plastic (FRP) combination structure frame where an integral type node is adopted and a construction method thereof. The FRP combination structure frame where the integral type node is adopted is formed by enabling an FRP pipe concrete combination beam and FRP pipe concrete combination columns to be connected. The FRP pipe concrete combination beam is horizontally arranged between the FRP pipe concrete combination columns, and the FRP integral type node is fixedly connected at the junction of the FRP pipe concrete combination beam and the FRP pipe concrete combination columns. The FRP integral type node is formed by enabling two node single bodies to be in butt joint and then be fixedly connected through bolts, each node single body is integrally formed after a vertical half pipe and a horizontal half pipe are joined, two longitudinal end faces of the vertical half pipe respectively extend outwards to form connecting lugs, and the upper end face and the lower end face of the vertical half pipe respectively extend outwards to form horizontal column connecting pieces. Two horizontal end faces of the horizontal half pipe respectively extend outwards to form connecting lugs, and the left end face and the right end face of the horizontal half pipe respectively extend outwards to form beam column connecting pieces. Steel ribs can be added in FRP pipes of the frame beam and the columns, or prestressed ribs are arranged in the beam, and bearing capability and rigidity of a component can be improved.

Description

1. Technical field: [0001] The invention relates to a frame structure in the field of civil and architectural structures, in particular to an FRP composite structure frame using integral nodes and a construction method thereof. 2. Background technology: [0002] In existing frame structures or structural systems composed of frames and other load-bearing structures, frame nodes are mostly reinforced concrete cast-in-place nodes or composite structure cast-in-place nodes, and composite structure cast-in-place nodes include steel reinforced concrete nodes and steel pipe concrete nodes. Ordinary reinforced concrete and reinforced concrete joints are the same as frame beams and columns, requiring on-site formwork, binding steel bars or welding steel frames, and then pouring concrete. The bearing capacity and stiffness of the components are relatively low, and the construction period is long. With the rapid development of the civil construction industry, concrete-filled steel tube...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/30E04B1/58E04G21/00
Inventor 计静张文福张云峰袁朝庆赵文艳刘迎春
Owner NORTHEAST GASOLINEEUM UNIV
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