CN211114138U - Beam column node safety device - Google Patents

Abstract

The utility model discloses a beam-column joint safety device. The end of the H-shaped steel beam is fixed on the side surface of the H-shaped steel column, the groove-shaped member is clamped on the end surface of the upper flange of the H-shaped steel beam, and the upper end of the oblique stay rod is hinged to the H-shaped steel beam. The side of the steel column; the upper ends of the two outer arc-shaped plates are fixed on the lower flange of the H-shaped steel beam, the lower end of the middle arc-shaped plate is fixed on the side of the H-shaped steel column, and the middle arc-shaped plate is located in the two Between the outer arc-shaped plates; the first energy-consuming member and the second energy-consuming member pass through the middle arc-shaped plate and the two outer arc-shaped plates; the upper end of each wave-supporting energy-consuming member is fixed on the first rectangular backing plate. At the bottom of the lower flange of the H-shaped steel beam, the lower end of each wave supporting energy dissipation member is fixed on the side of the H-shaped steel column.

Description

A beam-column joint safety device

technical field

The utility model belongs to the field of earthquake resistance and shock absorption of civil engineering, and relates to a beam-column joint safety device.

Background technique

Metal dampers, especially mild steel dampers, are shock-absorbing and vibration-isolating components that utilize elasto-plastic deformation energy dissipation when the metal yields. Since the metal has good hysteretic characteristics after entering the plastic state, it absorbs energy during the elastic-plastic deformation process. A large amount of energy is therefore used to manufacture energy-dissipating shock absorbers of different types and configurations. From the form of force, it can be divided into axial yielding, shear yielding, bending yielding and torsional yielding dampers. The existing energy dissipation dampers are as follows: X-shaped and triangular Beam dissipators, curved beam dissipators, U-shaped steel plate dissipators, steel rod dissipators, annular dissipators, double annular dissipators, stiffened annular dissipators, etc. Compared with other types of dampers such as viscoelastic, frictional, and viscous liquid dampers, metal dampers are easy to process, stable in hysteresis, easy to replace, and low in cost and maintenance. Therefore, they are widely used in the seismic resistance of engineering structures. Reinforce and repair areas.

Through the effective absorption and consumption of seismic energy by the damper, the seismic response of the structure can be reduced or adjusted, and the safety of the structure can be effectively protected. Among the several methods for realizing a recoverable functional structure, the most operable one is the replaceable structure at present. Replaceable structural components are arranged in the structure, so that the damage of the structure is mainly concentrated in the replaceable components during strong earthquakes. It can not only effectively dissipate the seismic input structure energy, but also facilitate the rapid replacement of damaged replaceable components after the earthquake, and restore the normal use function of the structure as soon as possible.

The strength of a certain part of the structure is weakened, or a ductile energy-dissipating member is arranged in this part, and the weakened part or energy-dissipating member is set as a replaceable member, and connected with the main structure through a device that is easy to disassemble, that is, a structure with replaceable components system. Under the action of the earthquake, the structure will focus the damage on the replaceable components, and the ductile replaceable components will undergo plastic deformation, dissipate the seismic input energy, and protect the main structure from damage or only minor damage. After the earthquake, only the energy-dissipating components need to be replaced. The function of the structure can be restored, however, the prior art does not involve energy-consuming and shock-absorbing equipment for beam-column joints.

Utility model content

The purpose of the present utility model is to overcome the shortcomings of the above-mentioned prior art, and provide a beam-column joint safety device, which can realize energy consumption and shock absorption of beam-column joints, and is easy to install and easy to replace after damage.

In order to achieve the above purpose, the beam-column joint safety device of the present invention includes an H-shaped steel beam, an H-shaped steel column, a trough-shaped member, a diagonal tie rod, a first energy-consuming member, a middle arc-shaped plate, and a second energy-consuming member. , two outer arc-shaped plates and a number of corrugated support energy-consuming components;

The end of the H-shaped steel beam is fixed on the side of the H-shaped steel column, the channel member is clamped on the end surface of the upper flange of the H-shaped steel beam, and the upper end of the oblique tie rod is hinged on the side of the H-shaped steel column;

The upper ends of the two outer arc-shaped plates are fixed on the lower flange of the H-shaped steel beam, the lower end of the middle arc-shaped plate is fixed to the side of the H-shaped steel column, and the middle arc-shaped plate is located between the two outer arc-shaped plates. the first energy-consuming member and the second energy-consuming member pass through the middle arc-shaped plate and the two outer arc-shaped plates;

The upper end of each wave supporting energy dissipation member is fixed to the bottom of the lower flange of the H-shaped steel beam through the first rectangular backing plate, and the lower end of each wave supporting energy dissipation member is fixed to the side surface of the H-shaped steel column.

The upper end of the inclined rod is hinged to the side surface of the H-shaped steel column through the hinge joint and the second rectangular backing plate.

The inner surface of the channel member is provided with a high hardness rough coating.

The corrugated support energy dissipation member adopts transverse corrugated steel with a bending angle of 135° and an isosceles trapezoid cross section, wherein the lower base of the isosceles trapezoid has the same length as the waist.

It also includes a fixing plate, wherein the lower end of the fixing plate is fixed to the middle of the outer arc-shaped plate, and the upper end of the fixing plate is fixed to the bottom of the lower flange of the H-shaped steel beam.

A connecting plate is fixed on the lower end of the middle arc-shaped plate, and the connecting plate is fixed on the side surface of the H-shaped steel column by means of bolts.

Both the middle arc-shaped plate and the outer arc-shaped plate are provided with a first rectangular through hole for passing through the first energy dissipation member and a second rectangular through hole for passing through the second energy dissipation member, wherein the first rectangular The size of the through hole is larger than that of the first energy dissipation member, and the size of the second rectangular through hole is larger than that of the second energy dissipation member.

The utility model has the following beneficial effects:

In the specific operation of the beam-column joint safety device of the present invention, the oblique-stayed rod and the trough-shaped member are used as safety and friction is used to dissipate energy. The energy dissipation part is composed of the friction force between the channel member and the steel beam flange, the wave supporting energy dissipation member, the first energy dissipation member and the second energy dissipation member. When the beam has excessive deflection, the energy is dissipated by the up and down movement of the two outer arc plates and the deformation of the wave supporting energy-dissipating members. No damage or slight damage occurs, and the stability of the overall structure is ensured. In addition, the processing and manufacturing process of each part of the components in the utility model is simple, the economic benefit is high, and the effective and rapid replacement can be realized after the force is damaged.

Description of drawings

Fig. 1 is the overall schematic diagram of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is the right side view of the lower part of H-shaped steel beam 2 in the utility model;

Fig. 4 is the schematic diagram of the upper part of the H-shaped steel beam 2 in the utility model;

5a is a schematic diagram of the first energy-consuming component 9 in the present invention;

5b is a schematic diagram of the second energy-consuming component 10 in the present invention;

6 is a schematic diagram of a Y-shaped support member in the utility model;

FIG. 7 is a schematic diagram of the corrugated support energy dissipation member 5 in the utility model.

Among them, 1 is an H-shaped steel column, 2 is an H-shaped steel beam, 3 is a tie rod, 4 is a channel member, 5 is a wave supporting energy-consuming member, 61 is a fixed plate, 62 is an outer arc plate, and 7 is a middle arc 8 is the second rectangular through hole, 9 is the first energy dissipation member, 10 is the second energy dissipation member, 11 is the hinge joint, 12 is the first rectangular backing plate, and 13 is the second rectangular backing plate.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

1 to 7, the beam-column joint safety device of the present invention includes H-shaped steel beams 2, H-shaped steel columns 1, channel members 4, tie rods 3, first energy dissipation members 9, and middle arc-shaped plates. 7, the second energy dissipating member 10, two outer arc-shaped plates 62 and a number of corrugated supporting energy dissipating members 5; On the end face of the upper flange of the H-shaped steel beam 2, the upper end of the oblique stay rod 3 is hinged to the side of the H-shaped steel column 1; the upper ends of the two outer arc-shaped plates 62 are fixed on the lower flange of the H-shaped steel beam 2, and the middle The lower end of the arc-shaped plate 7 is fixed to the side of the H-shaped steel column 1, and the middle arc-shaped plate 7 is located between the two outer arc-shaped plates 62; the first energy dissipation member 9 and the second energy dissipation member 10 pass through The middle arc-shaped plate 7 and the two outer arc-shaped plates 62; the upper end of each wave supporting energy-consuming member 5 is fixed to the bottom of the lower flange of the H-shaped steel beam 2 through the first rectangular backing plate 12, and each wave-shaped supporting energy-dissipating member The lower end of 5 is fixed to the side surface of H-shaped steel column 1 .

The upper end of the tie rod 3 is hinged to the side of the H-shaped steel column 1 through the hinge joint 11 and the second rectangular backing plate 13; the inner surface of the channel member 4 is provided with a high-hardness rough coating; the corrugated support energy dissipation member 5 adopts bending The transverse corrugated steel with an angle of 135° and an isosceles trapezoid cross section, wherein the lower base of the isosceles trapezoid has the same length as the waist.

The utility model also includes a fixing plate 61 , wherein the lower end of the fixing plate 61 is fixed to the middle of the outer arc-shaped plate 62 , and the upper end of the fixing plate 61 is fixed to the bottom of the lower flange of the H-shaped steel beam 2 .

A connecting plate is fixed to the lower end of the middle arc-shaped plate member 7 , and the connecting plate is fixed to the side surface of the H-shaped steel column 1 by bolts.

A first rectangular through hole for passing through the first energy dissipation member 9 and a second rectangular through hole 8 for passing through the second energy dissipation member 10 are opened on the middle arc-shaped plate 7 and the outer arc-shaped plate 62 , The size of the first rectangular through hole is larger than the size of the first energy dissipation member 9 , and the size of the second rectangular through hole 8 is larger than the size of the second energy dissipation member 10 .

The tie rod 3, the corrugated support energy dissipation member 5, the first energy dissipation member 9, the middle arc plate 7, the second energy dissipation member 10 and the channel member 4 are all made of low yield point mild steel with a yield strength of 100MPa-190MPa The H-shaped steel column 1, the H-shaped steel beam 2, the outer arc-shaped plate 62, the middle arc-shaped plate 7 and the fixing plate 61 are all made of ordinary steel with a yield strength of 235MPa.

When the steel beam is deflected, the protection system composed of the tie rod 3 and the channel member 4 can effectively prevent further deformation of the steel beam.

The first energy consuming member 9 and the second energy consuming member 10 have rectangular elongated holes in the middle or semicircular holes on both sides.

The two outer arc-shaped plates 62 and the fixed plate 61 connected to them form two Y-shaped support members, wherein, when the steel beam is deflected, the Y-shaped support can effectively prevent excessive deformation of the steel beam and consume energy at the same time. The component starts to consume energy.

When the beam-column joint is deformed, the corrugated support energy dissipation member 5 can absorb energy to prevent the beam-column joint from being damaged.

After the earthquake, the protection system composed of the stay rod 3 and the channel member 4 protects the steel beam from excessive deformation, and the wave supporting energy-consuming member 5, the first energy-consuming member 9 and the second energy-consuming member 10 generate energy consumption Deformation, the Y-shaped support member plays a supporting role to ensure that the structure itself is not damaged, and can be disassembled and replaced after the earthquake.

The frame structure of the utility model dissipates a large amount of energy through energy-consuming deformation, and at the same time, it can be quickly replaced after damage occurs, so as to protect the structure and achieve the purpose of safety and economy.

Claims (7)

1. A beam column node safety device is characterized by comprising an H-shaped steel beam (2), an H-shaped steel column (1), a groove-shaped member (4), a diagonal draw bar (3), a first energy dissipation member (9), a middle arc-shaped plate (7), a second energy dissipation member (10), two outer arc-shaped plates (62) and a plurality of waveform supporting energy dissipation members (5);

the end part of the H-shaped steel beam (2) is fixed on the side surface of the H-shaped steel column (1), the groove-shaped member (4) is clamped on the end surface of the upper flange of the H-shaped steel beam (2), and the upper end of the diagonal draw bar (3) is hinged on the side surface of the H-shaped steel column (1);

the upper ends of the two outer side arc plates (62) are fixed on the lower flange of the H-shaped steel beam (2), the lower end of the middle arc plate (7) is fixed on the side surface of the H-shaped steel column (1), and the middle arc plate (7) is positioned between the two outer side arc plates (62); the first energy dissipation component (9) and the second energy dissipation component (10) penetrate through the middle arc-shaped plate (7) and the two outer arc-shaped plates (62);

the upper end of each wave-shaped supporting energy dissipation component (5) is fixed to the bottom of the lower flange of the H-shaped steel beam (2) through a first rectangular base plate (12), and the lower end of each wave-shaped supporting energy dissipation component (5) is fixed to the side face of the H-shaped steel column (1).

2. A beam-column joint safety device according to claim 1, characterized in that the upper ends of the diagonal draw bars (3) are hinged to the sides of the H-section steel column (1) by means of a hinged joint (11) and a second rectangular backing plate (13).

3. A beam-column joint fuse according to claim 1, characterised in that the inner surface of the channel member (4) is provided with a high hardness rough coating.

4. The beam-column node safety device according to claim 1, characterized in that the corrugated supporting energy dissipation member (5) is made of transverse corrugated steel with a bending angle of 135 ° and a cross section of isosceles trapezoid, wherein the length of the lower base and the waist of the isosceles trapezoid is the same.

5. The beam-column joint safety device according to claim 1, further comprising a fixing plate (61), wherein the lower end of the fixing plate (61) is fixed to the middle of the outer arc plate (62), and the upper end of the fixing plate (61) is fixed to the bottom of the lower flange of the H-shaped steel beam (2).

6. The beam-column joint safety device according to claim 1, characterized in that the lower end of the middle arc-shaped plate member (7) is fixed with a connecting plate, and the connecting plate is fixed on the side surface of the H-shaped steel column (1) through bolts.

7. The beam-column joint safety device according to claim 1, wherein the middle arc-shaped plate (7) and the outer arc-shaped plate (62) are respectively provided with a first rectangular through hole for passing through the first energy dissipation member (9) and a second rectangular through hole (8) for passing through the second energy dissipation member (10), wherein the first rectangular through hole is larger than the first energy dissipation member (9), and the second rectangular through hole (8) is larger than the second energy dissipation member (10).

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