CN215759566U - Round CFRP steel pipe concrete column-steel beam node - Google Patents

Round CFRP steel pipe concrete column-steel beam node Download PDF

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Publication number
CN215759566U
CN215759566U CN202121149143.0U CN202121149143U CN215759566U CN 215759566 U CN215759566 U CN 215759566U CN 202121149143 U CN202121149143 U CN 202121149143U CN 215759566 U CN215759566 U CN 215759566U
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China
Prior art keywords
steel tube
cfrp
cfrp layer
round
round steel
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CN202121149143.0U
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Chinese (zh)
Inventor
王庆利
郁凌峰
高华国
车媛
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University of Science and Technology Liaoning USTL
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University of Science and Technology Liaoning USTL
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Abstract

The utility model relates to a round CFRP steel tube concrete column-steel beam node which comprises a round steel tube I, a round steel tube II and a round steel tube III which are sequentially connected, wherein the round steel tube I, the round steel tube II and the round steel tube III are in threaded connection through an inner lining cylinder arranged inside, a CFRP layer I is arranged on the periphery of the connection part of the round steel tube I and the round steel tube II, a CFRP layer II is arranged on the periphery of the rest part of the round steel tube I, a CFRP layer III is arranged on the periphery of the connection part of the round steel tube II and the round steel tube III, a CFRP layer IV is arranged on the periphery of the rest part of the round steel tube III, a node plate is connected to the outside of the round steel tube II, and the node plate is connected with a steel beam bolt. The utility model has simple node structure, simple and convenient and quick construction and is convenient for pouring the center concrete.

Description

Round CFRP steel pipe concrete column-steel beam node
Technical Field
The utility model relates to the field of constructional engineering, in particular to a round CFRP steel tube concrete column-steel beam node.
Background
The steel pipe concrete column is firstly applied to building structure engineering as early as one hundred years ago, the essence of the steel pipe concrete column is hoop concrete, and after years of research and exploration practice, the steel pipe concrete structure is rapidly developed and is widely applied to relevant fields of building engineering, bridge engineering and the like.
Compared with the reinforced concrete beam column node, the steel tube concrete column-steel beam node has high construction speed and better conforms to the idea of green buildings. The existing steel pipe concrete column-steel beam connection node forms can be divided into the following types: the inner and outer partition plate type, the outer reinforcing ring type, the outer lantern ring type, the bolt connection type, the anchoring piece type, the penetrating steel plate type and the web plate penetrating type.
The three node forms of the outer reinforcing ring type, the outer clapboard type and the outer sleeve type have definite force transmission, good plastic property and high bearing capacity, but the external devices such as the outer ring plate and the like have large sizes and have inconvenience; the inner partition plate type node and the anchoring piece type node need to be additionally provided with components inside the steel pipe, the node structure is usually complex, the construction difficulty is high, and the concrete pouring quality is difficult to ensure; the steel consumption of the two nodes of the through steel plate type and the web penetrating type is relatively large, the construction difficulty is large, and the construction cost is relatively high.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a round CFRP steel tube concrete column-steel beam node which is simple in structure and simple, convenient and quick to construct.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a circle CFRP steel core concrete column-girder steel node, including the circular steel tube one that connects gradually, circular steel tube two, circular steel tube three, circular steel tube one, circular steel tube two and circular steel tube three are through the inside lining section of thick bamboo threaded connection that sets up, the periphery of the junction of circular steel tube one and circular steel tube two is equipped with CFRP layer one, the periphery of the other parts of circular steel tube one is equipped with CFRP layer two, the periphery of the junction of circular steel tube two and circular steel tube three is equipped with CFRP layer three, the periphery of the other parts of circular steel tube three is equipped with CFRP layer four, the external connection gusset plate of circular steel tube two, gusset plate and girder steel bolted connection.
Concrete is poured inside the first round steel pipe, the second round steel pipe, the third round steel pipe and the lining cylinder.
The wall thickness of the lining cylinder is larger than the wall thickness of the first round steel pipe, the second round steel pipe and the third round steel pipe.
The CFRP layer I, the CFRP layer II, the CFRP layer III and the CFRP layer IV are formed by winding CFRP cloth, the joint of the CFRP layer I and the CFRP layer II is formed by pressing the CFRP layer I outside the CFRP layer II, and the joint of the CFRP layer III and the CFRP layer IV is formed by pressing the CFRP layer III outside the CFRP layer IV.
Compared with the prior art, the utility model has the beneficial effects that:
a CFRP layer reinforcing mode is arranged outside the joint of the steel pipes, so that the stress performance of the node is improved. The steel pipes at the nodes are connected through the inner lining barrel, so that the corrosion of external factors is avoided, and the nodes are safer and more reliable. The wall thickness of the lining cylinder is larger than that of the steel pipe, and the steel pipe part with weakened threads is reinforced. The utility model has simple node structure, simple and convenient and quick construction and is convenient for pouring the center concrete.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the steel pipe comprises a first round steel pipe 1, a second round steel pipe 2, a third round steel pipe 3, a lining cylinder 4, a first CFRP layer 5, a second CFRP layer 6, a third CFRP layer 7, a fourth CFRP layer 8, a gusset plate 9 and a steel beam 10.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1, a circle CFRP steel core concrete column-girder steel node, including the circular steel tube 1 that connects gradually, circular steel tube two 2, circular steel tube three 3, circular steel tube 1, circular steel tube two 2 and circular steel tube three 3 are through the inside lining section of thick bamboo 4 threaded connection that sets up, are equipped with the internal thread in circular steel tube 1, the mouth of pipe of circular steel tube three 3, and the intraductal lining up of circular steel tube two 2 is equipped with the internal thread, and the surface of lining section of thick bamboo 4 is equipped with the external screw thread, and the section of thick bamboo wall thickness of lining section of thick bamboo 4 is greater than the wall thickness of circular steel tube 1, circular steel tube two 2 and circular steel tube three 3. Concrete is poured inside the first round steel pipe 1, the second round steel pipe 2, the third round steel pipe 3 and the lining barrel 4.
The periphery of the junction of the first round steel pipe 1 and the second round steel pipe 2 is provided with a CFRP (carbon fiber reinforced plastics) layer 5, the periphery of the other part of the first round steel pipe 1 is provided with a CFRP layer two 6, the periphery of the junction of the second round steel pipe 2 and the third round steel pipe 3 is provided with a CFRP layer three 7, the periphery of the other part of the third round steel pipe 3 is provided with a CFRP layer four 8, the CFRP layer one 5, the CFRP layer two 6, the CFRP layer three 7 and the CFRP layer four 8 are formed by winding CFRP cloth, the seam of the CFRP layer one 5 and the CFRP layer two 6 is in the external part of the CFRP layer two 6 in a 5 crimping mode, and the seam of the CFRP layer three 7 and the CFRP layer four 8 is in the external part of the CFRP layer three 7 crimping mode.
The outer part of the second round steel pipe 2 is connected with a node plate 9, and the node plate 9 is in bolted connection with a steel beam 10.
In the above embodiments, it is obvious to those skilled in the art that the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified embodiments also fall within the protection scope of the appended claims. The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.

Claims (4)

1. The utility model provides a circle CFRP steel core concrete column-girder steel node, a serial communication port, including the circular steel tube one that connects gradually, circular steel tube two, circular steel tube three, circular steel tube one, circular steel tube two and circular steel tube three are through the inside lining section of thick bamboo threaded connection that sets up, the periphery of the junction of circular steel tube one and circular steel tube two is equipped with CFRP layer one, the periphery of the other parts of circular steel tube one is equipped with CFRP layer two, the periphery of the junction of circular steel tube two and circular steel tube three is equipped with CFRP layer three, the periphery of the other parts of circular steel tube three is equipped with CFRP layer four, the external connection gusset plate of circular steel tube two, gusset plate and girder steel bolted connection.
2. The round CFRP steel tube concrete column-steel beam node of claim 1, wherein the concrete is poured inside the first round steel tube, the second round steel tube, the third round steel tube and the lining cylinder.
3. The round CFRP steel tube concrete column-steel beam node of claim 1, wherein the wall thickness of said lining cylinder is larger than the wall thickness of the round steel tube I, round steel tube II and round steel tube III.
4. The round CFRP steel tube concrete column-steel beam node of claim 1, wherein the CFRP layer I, the CFRP layer II, the CFRP layer III and the CFRP layer IV are all formed by winding CFRP cloth, the joint of the CFRP layer I and the CFRP layer II is formed by crimping the CFRP layer I on the outer part of the CFRP layer II, and the joint of the CFRP layer III and the CFRP layer IV is formed by crimping the CFRP layer III on the outer part of the CFRP layer IV.
CN202121149143.0U 2021-05-26 2021-05-26 Round CFRP steel pipe concrete column-steel beam node Active CN215759566U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121149143.0U CN215759566U (en) 2021-05-26 2021-05-26 Round CFRP steel pipe concrete column-steel beam node

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121149143.0U CN215759566U (en) 2021-05-26 2021-05-26 Round CFRP steel pipe concrete column-steel beam node

Publications (1)

Publication Number Publication Date
CN215759566U true CN215759566U (en) 2022-02-08

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ID=80098188

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121149143.0U Active CN215759566U (en) 2021-05-26 2021-05-26 Round CFRP steel pipe concrete column-steel beam node

Country Status (1)

Country Link
CN (1) CN215759566U (en)

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