CN215406686U - Novel soft steel energy-consumption steel pipe concrete beam column joint - Google Patents

Abstract

The utility model discloses a novel soft steel energy-consumption concrete filled steel tube beam column node in the technical field of building node connection structures, which comprises a steel box column and a steel box beam vertically connected to the peripheral side wall of the steel box column, wherein a soft steel anti-reverse arch key is arranged at the position, corresponding to the connection height of the steel box beam, of an inner cavity of the steel box column, the soft steel anti-reverse arch key is of a square hollow structure, four corners of the soft steel anti-reverse arch key are respectively abutted and mounted with the four walls of the inner cavity of the steel box column, a prestressed steel strand is connected between the end parts of two opposite steel box beams, and the prestressed steel strand penetrates through the steel box column and the soft steel anti-reverse arch key.

Description

Novel soft steel energy-consumption steel pipe concrete beam column joint

Technical Field

The utility model relates to the technical field of building node connection structures, in particular to a novel soft steel energy-dissipation concrete filled steel tube beam column node.

Background

The prior publications disclose or disclose the technical situation used: the existing reinforcing scheme is generally that on the basis of the original structure, a single-form reinforcing scheme may not achieve the expected reinforcing effect by means of externally adhering steel plates, additionally arranging supporting points, applying prestress or adopting composite fiber reinforced materials and the like. The utility model patent publication number of 'a reinforcing device for replacing concrete by beam-column nodes' published by the national intellectual property office in 24 months and 10 months in 2019 is as follows: CN201921805988.3, this patent adopts two steel sheets and thick wall steel pipe to carry out full weld and connects, and steel pipe inside is filled there is adhesive concrete, and the thick wall steel pipe replaces the short column as the support column, and the construction is simple, swift, has solved the defect that the concrete strength is low, but has adhesive concrete cost high, also can't avoid the outer arch effect that thick wall steel pipe adhesive concrete produced when the pressurized simultaneously.

The utility model patent publication number of 'a concrete beam reinforced structure and a construction method thereof' issued on 24 months in 2020 is as follows: CN 110905229A, the reinforcement between this patent mainly used longitudinal and transverse beams, drilling and interpolation screw rod add the fulcrum on longeron and crossbeam, erect tangent arc steel sheet as damping subassembly with the roof beam bottom surface by the steel wire through crossbeam upper portion fulcrum, damping subassembly is connected to the fulcrum that is located the longeron by round steel bar simultaneously, with effective transmission stress, wherein the arc steel sheet constantly warp in crossbeam forced vibration in-process in order to play the damping effect, pass power by steel wire or round steel bar between each fulcrum, not only provide the ascending holding power of crossbeam and improved the rigidity and the intensity of crossbeam. The utility model effectively transmits the stress between the longitudinal beams and the transverse beams by adding the pivot, and adopts the vibration reduction component to play the effect of energy dissipation and vibration reduction. The technical scheme has the defects that the size of the arc-shaped steel plate adopted by the vibration reduction component directly influences the energy dissipation and vibration reduction effect, the position requirement of the supporting point is too accurate, and the corresponding precision is difficult to achieve in the actual engineering.

Based on the technical scheme, the utility model designs a novel soft steel energy-dissipation concrete filled steel tube beam column node to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel mild steel power consumption steel pipe concrete beam column node to solve above-mentioned technical problem.

In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a novel soft steel power consumption steel pipe concrete beam column node, including steel box column and perpendicular connect in the steel box beam of steel box column lateral wall all around, the inner chamber of steel box column corresponds steel box beam joint height department is provided with the soft steel and prevents the anti-arch key, the anti-arch key of soft steel, the soft steel is prevented preventing that the anti-arch key is square hollow structure, the soft steel prevent the four corners of anti-arch key respectively with the installation of steel box column inner chamber four walls butt, subtend two be connected with the prestressing steel strand wires between the steel box beam tip, the prestressing steel strand wires run through the anti-arch key of steel box column and soft steel.

Preferably, the steel box girder with the downside all is provided with beam column connecting piece on the steel box post junction, beam column connecting piece and steel box girder with through high strength bolt fixed connection between the contact surface of steel box post.

Preferably, the peripheral frame of the mild steel anti-reverse-arch key is of an arc structure which is sunken inwards.

Preferably, the prestress steel strand is provided with a rope tightener.

Preferably, the inner cavity of the steel box column is filled and poured with concrete.

Compared with the prior art, utility model's beneficial effect does:

the utility model is formed by splicing a soft steel anti-arch key and a box-type steel column bolt at the joint of a beam column joint, concrete is poured inside the box-type column, four box beams and a nuclear box-type column are connected at the outer side of the box-type column through high-strength bolts, the soft steel anti-arch key has certain constraint action on the concrete, the compression strength of the concrete can be improved when the concrete is compressed, meanwhile, the soft steel anti-arch key can counteract the outer arch action generated when the concrete is compressed in the steel column through the self energy consumption of the soft steel, the toughness and the integrity of the core area of the beam column joint are enhanced, a pore channel is reserved in the middle of the anti-arch key, and prestress steel strands are embedded in the middle of the anti-arch key to connect opposite box beams, so that the corner deflection of the beam column joint is reduced. Meanwhile, the structure is simple and rapid in construction and easy to master, and the beam-column joints are of symmetrical structures, so that the construction quality and the construction strength can be guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic side view of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the method comprises the following steps of 1-steel box girder, 2-steel box column, 3-high-strength bolt hole, 4-prestressed steel strand, 5-high-strength bolt, 6-mild steel anti-reverse arch key and 7-beam column connecting piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides a technical solution: a novel soft steel energy-consumption concrete filled steel tube beam column node comprises a steel box column 2 and a steel box beam 1 vertically connected to the peripheral side wall of the steel box column 2, wherein a soft steel anti-arch key 6 is arranged at the position, corresponding to the connecting height of the steel box beam 1, of an inner cavity of the steel box column 2, the soft steel anti-arch key 6 is arranged, the soft steel anti-arch key 6 is of a square hollow structure, the peripheral frame of the soft steel anti-arch key 6 is of an arc structure sunken inwards, four corners of the soft steel anti-arch key 6 are respectively abutted to four walls of the inner cavity of the steel box column 2, the soft steel anti-arch key 6 can offset the outer arch effect when concrete in the steel column is pressed through the self energy consumption of the soft steel, and the toughness resistance and the integrity of a beam column node core area are enhanced; the upper side and the lower side of the joint of the steel box girder 1 and the steel box column 2 are respectively provided with a beam column connecting piece 7, the beam column connecting piece 7 is provided with a high-strength bolt hole 3, the beam column connecting piece 7 is fixedly connected with the contact surfaces of the steel box girder 1 and the steel box column 2 through a high-strength bolt, a pore channel is reserved in the middle of the inverted arch key, prestressed steel stranded wires are embedded in the pore channel, and the box girders in opposite directions are connected, so that the corner deflection of the joint of the beam columns is reduced, and the horizontal displacement and the vertical displacement of the box girder are respectively limited through the high-strength bolt and the beam column connecting piece; is suitable for the beam column node core area; a prestressed steel strand 4 is connected between the end parts of the two opposite steel box girders 1, the prestressed steel strand 4 penetrates through the steel box column 2 and the soft steel anti-reverse-arch key 6, a rope tightener is arranged on the prestressed steel strand 4, the prestressed steel strand is placed in a hole channel reserved for the anti-reverse-arch key and fixed on the outer side of the column, and the size of the prestress can be adjusted through a rope force; concrete is filled and poured in the inner cavity of the steel box column 2, and the anti-reverse arch key has a constraint effect on the concrete, so that the concrete is in a three-dimensional pressed state, the compressive strength of the concrete is enhanced, and the utilization rate of the concrete is improved.

Working principle embodiment:

the construction method of the steel energy dissipation concrete filled steel tube beam column joint comprises the following steps:

1. processing and manufacturing a soft steel anti-reverse arch key 6, a stainless steel box column 2 and a steel box beam 1 by soft steel, and reserving corresponding bolt pore channels;

2. the steel box column 2, the steel box beam 1 and the soft steel anti-reverse arch key 6 are connected in sequence by a high-strength bolt 5 and a beam column connecting piece 7;

3. placing a prestressed steel strand 4 in a pore channel reserved in the soft steel anti-reverse arch key 6, fixing the prestressed steel strand at the outer side of the steel box column 2, and adjusting the prestress by cable force;

4. and pouring concrete into the steel box column 2.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a novel mild steel power consumption steel pipe concrete beam column node which characterized in that: including steel box column (2) and connect perpendicularly in steel box column (2) steel box girder (1) of lateral wall all around, the inner chamber of steel box column (2) corresponds steel box girder (1) joint height department is provided with soft steel and prevents anti-arch key (6), soft steel prevents that arch key (6) are square hollow structure, soft steel prevent the four corners of anti-arch key (6) respectively with installation of steel box column (2) inner chamber four walls butt, subtend two be connected with prestressing force steel strand wires (4) between steel box girder (1) the tip, prestressing force steel strand wires (4) run through anti-arch key (6) are prevented to steel box column (2) and soft steel.

2. The novel mild steel energy-dissipating concrete-filled steel tube beam column joint as claimed in claim 1, wherein: the steel box girder (1) with downside all is provided with beam column connecting piece (7) on the steel box post (2) junction, beam column connecting piece (7) with steel box girder (1) with through high strength bolt (5) fixed connection between the contact surface of steel box post (2).

3. The novel mild steel energy-dissipating concrete-filled steel tube beam column joint as claimed in claim 1, wherein: the peripheral frame of the soft steel anti-reverse-arching key (6) is of an arc structure which is sunken inwards.

4. The novel mild steel energy-dissipating concrete-filled steel tube beam column joint as claimed in claim 1, wherein: and a rope tightener is arranged on the prestressed steel strand (4).

5. The novel mild steel energy-dissipating concrete-filled steel tube beam column joint as claimed in claim 1, wherein: and concrete is filled and poured in the inner cavity of the steel box column (2).

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