CN213329460U

CN213329460U - Steel core concrete column node connection structure

Info

Publication number: CN213329460U
Application number: CN202021675319.1U
Authority: CN
Inventors: 申永江; 赵文彬; 张晨曦; 刘文倩
Original assignee: Central South University
Current assignee: Central South University
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-06-01
Anticipated expiration: 2030-08-12

Abstract

The utility model provides a steel core concrete column node connection structure, includes the first post and the second post of perpendicular setting, first post and second post are the square steel tube cylinder, first post and second post interconnect end have been poured the concrete in advance for hollow, all the other parts, the external diameter of the link of second post and the internal diameter phase-match of first post link, the link of second post inserts in the link of first post and through a plurality of bolt fixings or welded fastening, be provided with the grout hole with the link intercommunication near overlap joint department on the second post, first post and second post are connected the back, are connected into the concrete through the grout hole in the link and are connected into whole, and this device column connection node can guarantee construction quality, and the assembly is nimble, is applicable to fabricated building very much.

Description

Steel core concrete column node connection structure

Technical Field

The utility model relates to a steel core concrete column node connection structure.

Background

The steel pipe concrete structure can better adapt to the development requirement of modern engineering structures towards high-rise, super high-rise and large-span directions, meets the requirements of modern design and construction, and is more and more widely applied to houses, office buildings, industrial factory buildings and the like. The steel pipe concrete structure includes: round steel tube concrete, rectangular (square) steel tube concrete and polygonal steel tube concrete. From the steel pipe to the restraint angle of concrete, the restraint effect of circular steel tube is better, nevertheless because rectangle (square) steel pipe concrete is changeed on building space and is handled, the node is connected conveniently, fire prevention panel changes and pastes, and rectangle (square) steel pipe concrete structure's application constantly increases. The steel pipe and the inner core concrete bear the external load together, and the effective combination of the two building materials greatly improves the comprehensive benefit. In recent years, the steel pipe concrete structure has become an important direction for the development of structural engineering by virtue of excellent anti-seismic performance and construction performance, but the node is an important part of the structural engineering design and is also a construction difficulty, and the safety of the structure and the construction cost are related, so that the reasonable selection node is very important for the structural design. At present, the construction forms of the nodes are various, but most of the nodes have complicated structures, high construction difficulty and unclear transferred load, and the mechanical properties of the nodes and the simplicity and the economy of construction cannot be consistent; the node has the advantages of good stress, large material consumption of the node with high integral rigidity, economy, unreasonable property and complex construction, most of the nodes have simple structures, convenient construction and economy, the node with saved materials can not bear large load, and the node is easy to damage in the using process. Meanwhile, for a long span structure, when a general column cannot reach a required span, node connection between two columns is needed. Therefore, an assembly type steel pipe concrete column joint connecting structure which is high in assembly rate, simple and convenient to construct, good in stress performance and economic benefit and safe and reliable in connection is urgently needed, and is very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough and provide one kind increase roof beam ability of shearing, increased post bending resistance bearing capacity, improved the effect that the post bore load in the middle of the steel core concrete structure, optimized construction process, the route of node biography power is more clear and definite for the steel core concrete column accords with the steel core concrete column node connection structure of building antidetonation design specification more.

The utility model discloses a following embodiment realizes:

the utility model provides a steel core concrete column node connection structure, includes the first post and the second post of perpendicular setting, first post and second post are the square steel tube cylinder, first post and second post interconnect end have been poured the concrete in advance for hollow, all the other parts, the external diameter of the link of second post and the internal diameter phase-match of first post link, the link of second post inserts in the link of first post and through a plurality of bolt fastening or welded fastening, be provided with the grout hole with the link intercommunication near the overlap joint on the second post, first post and second post are connected the back, are connected into whole through the concrete of pouring into in the link in the grout hole.

In this embodiment, the grouting hole of the second column is a hole having a V-shaped section.

In this embodiment, an observation hole for observing the grouting quality is provided on the second column at the opposite side of the grouting hole.

In this embodiment, all set up a plurality of bolt holes on lapped part on first post and the second post, and the bolt hole position on first post and the second post corresponds each other, and first post and second post are fixed through installing the bolt interconnect in the bolt hole.

In this embodiment, the bolt holes are provided in two faces of the first column that face the second column.

To sum up, the utility model discloses simple structure, the grout quality is secure, adopts grafting mode to connect first post and second post, has increased the overall stability of post, and the mode of adoption bolt connection, grout that moreover can be nimble is connected, and connected node is reliable effective between post and the post, and the bearing capacity of post is high to the assembly is nimble, can be used to assembled building structure.

Drawings

Fig. 1 is a schematic structural view of the utility model after the first column and the second column are connected.

Fig. 2 is a schematic structural diagram of the first column and the second column of the present invention.

In the attached drawings, 1, a first column, 2, a second column, 3, bolt holes, 4, grouting holes, 5 and observation holes.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, a steel pipe concrete column joint connection structure includes a first column 1 shown in a of fig. 1 and a second column 2 shown in B, the first column 1 and the second column 2 are square steel pipe columns with hollow interiors, and the lap joint part of the first column 1 and the second column 2 is fixedly connected by a plurality of bolts 3.

Referring to fig. 2, the structural section sizes of the connecting ends of the first column 1 and the second column 2 are somewhat different, the outer diameter of the connecting end of the second column 2 is matched with the inner diameter of the connecting end of the first column 1, the first column 1 and the second column 2 are both vertically arranged, and the connecting end of the second column 2 is inserted into the connecting end of the first column 1 to form a sleeved splicing structure which is tightly matched inside and outside; the second column 2 is provided with a grouting hole 4 and an observation hole 5 on the side surface of the square steel pipe close to the lap joint, and the grouting hole 4 is a V-shaped hole, so that field grouting is facilitated; a plurality of bolt holes are formed in the overlapped parts of the first column 1 and the second column 2, the bolt holes are arranged in two rows, the bolt hole positions of the first column 1 and the second column 2 correspond to each other, and the first column 1 and the second column 2 are fixedly connected through bolts 3 installed in the bolt holes.

The utility model is suitable for a many, high-rise steel pipe concrete frame structure, concrete installation procedure is: firstly in first post 1 and second post 2, except that the part of division link carries out the concrete and pours into, when the concrete that first post 1 and second post 2 were poured reaches certain intensity, again with first post 1 and second post 2 fortune job site, after second post 2 inserts first post 1, closely paste the connection with the cylinder at overlap joint position with bolt 3, after connecting stably, at last grout, grout in grouting hole 4 from second post 2, and can observe the grout quality in observation hole 5 department, thereby form a whole with first post 1 and second post 2.

The above description is only for the description of the specific embodiments of the present invention, and the scope of the present invention should not be limited thereto. All equivalent changes and modifications made according to the claims and the content of the specification of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a steel core concrete column node connection structure which characterized in that: including perpendicular first post and the second post that sets up, first post and second post are the square steel tube cylinder, first post and second post interconnect end have been poured the concrete in advance for hollow, all the other parts, the external diameter of the link of second post and the internal diameter phase-match of first post link, the link of second post inserts in the link of first post and through a plurality of bolt fastening or welded fastening, be provided with the grout hole with the link intercommunication near the overlap joint on the second post, first post and second post are connected the back, are connected into whole through the grout hole concrete of pouring into in the link.

2. The concrete filled steel tubular column joint connection structure of claim 1, wherein: and the grouting hole of the second column is a hole with a V-shaped section.

3. The concrete-filled steel tubular column joint connection structure of claim 2, wherein: and an observation hole for observing grouting quality is formed in the second column at one side opposite to the grouting hole.

4. The concrete filled steel tubular column joint connection structure of claim 1, wherein: a plurality of bolt holes are formed in the overlapped parts of the first column and the second column, the positions of the bolt holes in the first column and the second column correspond to each other, and the first column and the second column are fixedly connected through bolts installed in the bolt holes.

5. The concrete filled steel tubular column joint connection structure of claim 4, wherein: the bolt holes are formed in two opposite faces of the first column and the second column.