CN216766209U

CN216766209U - Novel wide and flat beam column joint

Info

Publication number: CN216766209U
Application number: CN202220087280.4U
Authority: CN
Inventors: 张全; 赵靓; 郭春红; 王麒
Original assignee: Yunnan Design Institute Group Co ltd
Current assignee: Yunnan Design Institute Group Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-17
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to the technical field of building structures, in particular to a novel wide and flat beam column joint, which comprises a wide and flat beam consisting of an upper structure column, an upper shock insulation buttress, a wedge-shaped column cap, a longitudinal rib of the upper shock insulation buttress, a stirrup of the upper shock insulation buttress, a longitudinal rib of the wide and flat beam, a stirrup of the wide and flat beam and a top plate of a shock insulation layer, wherein the upper structure column is positioned at the top of the upper shock insulation buttress, the upper structure column is horizontally connected with the top of the upper shock insulation buttress into a whole through pouring concrete by the wedge-shaped column cap, the longitudinal rib of the upper shock insulation buttress is arranged outside the upper shock insulation buttress, and the stirrup of the upper shock insulation buttress is respectively sleeved on the longitudinal rib of the upper shock insulation buttress, the top and the bottom of the wide and flat beam and outside the longitudinal rib of the wide and flat beam. The utility model has simple structure, easy production, simple and convenient implementation and strong applicability, compared with the traditional method, the bearing capacity and the energy consumption capacity of the node are improved by about 20 percent, the utility model is a good choice for the use of the traditional wide flat beam in the seismic isolation layer of the seismic high-intensity area, and can bring higher economic benefit and design benefit for construction units.

Description

Novel wide and flat beam column joint

Technical Field

The utility model relates to the technical field of building structures, in particular to a novel wide and flat beam column node.

Background

The most similar technical design at present is basically derived from a paper 'design proposal of wide and flat beams' of a team of the department of research and development, which is a design principle of the wide and flat beams and provides a bearing capacity calculation formula, an engineering construction method and the like. However, the technology still has defects, such as small rigidity of the wide and flat beam column joint designed according to the design method, low bearing capacity, poor energy consumption capacity under repeated load and poor energy consumption capacity under repeated load. Therefore, the novel wide and flat beam column node is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel wide and flat beam column joint which comprises a wide and flat beam consisting of an upper structure column, an upper shock insulation buttress, a wedge-shaped column cap, a longitudinal rib of the upper shock insulation buttress, a stirrup of the upper shock insulation buttress, a longitudinal rib of the wide and flat beam, a stirrup of the wide and flat beam and a top plate of a shock insulation layer, wherein the upper structure column is positioned at the top of the upper shock insulation buttress, the upper structure column and the top of the upper shock insulation buttress are connected into a whole through pouring concrete by the wedge-shaped column cap in the horizontal direction, the longitudinal rib of the upper shock insulation buttress is arranged outside the upper shock insulation buttress, and the stirrup of the upper shock insulation buttress is respectively sleeved on the longitudinal rib of the upper shock insulation buttress, the top and the bottom of the wide and flat beam and outside the longitudinal rib of the wide and flat beam.

As a preferable technical scheme of the utility model, the longitudinal ribs of the upper shock insulation pier are arranged along the outer edge of the wedge-shaped column cap and bend along with the vertical outer profiles of the upper shock insulation pier and the wedge-shaped column cap.

As a preferable technical scheme of the utility model, the seismic isolation upper supporting pier stirrup at least comprises at least one peripheral stirrup.

As a preferable technical scheme of the utility model, the wide flat beam longitudinal bar penetrates through the upper seismic isolation buttress and the wedge-shaped cap in the horizontal direction.

As a preferred technical solution of the present invention, the wide-flat beam stirrup is sleeved outside the wide-flat beam longitudinal bar, and the wide-flat beam stirrup includes a peripheral stirrup and a plurality of inner stirrups, where the width of the inner stirrups is not greater than 250 mm, the diameter of the wide-flat beam stirrup is not less than 12 mm, and the distance between the wide-flat beam stirrups along the length direction of the wide-flat beam 1 is not greater than 100 mm.

As a preferable technical solution of the present invention, the top plate of the seismic isolation layer is disposed on the top of the upper structural column, and the thickness of the top plate 9 of the seismic isolation layer is between 180 mm and 250 mm.

The utility model has the beneficial effects that: this kind of novel wide flat beam column node, structural joint rigidity is great, and the bearing capacity is higher, and elastoplasticity power consumption ability is better, and the stress distribution of node is more even simultaneously, and beam-ends stress can transmit down post (buttress on the shock insulation), upper prop (superstructure post) effectively. The utility model has simple structure, easy production, simple and convenient implementation and strong applicability, compared with the traditional method, the bearing capacity and the energy consumption capacity of the node are improved by about 20 percent, the utility model is a good choice for the use of the traditional wide flat beam in the seismic isolation layer of the seismic high-intensity area, and can bring higher economic benefit and design benefit for construction units.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the A-A section of a novel wide and flat beam column joint of the present invention;

FIG. 2 is a schematic view of a plane structure of a connecting joint of a wide flat beam and a column (seismic isolation buttress) of the novel wide flat beam column joint of the utility model;

FIG. 3 is a schematic structural view of a B-B cross section of a novel wide and flat beam column joint of the present invention;

FIG. 4 is a structural diagram of concrete damage when seismic oscillation acceleration of the novel wide and flat beam-column joint is small;

FIG. 5 is a structural diagram of the steel bar stress when the earthquake dynamic acceleration of the novel wide and flat beam-column joint is small;

FIG. 6 is a schematic diagram of a concrete damage structure of a novel wide and flat beam-column joint of the utility model when seismic acceleration is large;

FIG. 7 is a structural diagram of the steel bar stress when the seismic acceleration of the novel wide flat beam-column joint is large

In the figure: 1. a wide flat beam; 2. a superstructure column; 3. isolating the upper buttress; 4. a wedge-shaped cap; 5. buttress longitudinal ribs; 6. supporting pier hooping; 7. wide flat beam longitudinal bars; 8. wide flat beam stirrups; 9. and (5) a seismic isolation layer top plate.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in the figures 1-3, the novel wide and flat beam column joint comprises a wide and flat beam 1 consisting of an upper structure column 2, an upper shock insulation buttress 3, a wedge-shaped column cap 4, an upper shock insulation buttress longitudinal rib 5, an upper shock insulation buttress stirrup 6, a wide and flat beam longitudinal rib 7, a wide and flat beam stirrup 8 and a shock insulation layer top plate 9, wherein the upper structure column 2 is positioned at the top of the upper shock insulation buttress 3, the upper structure column 2 and the top of the upper shock insulation buttress 3 are connected into a whole through pouring concrete in the horizontal direction through the wedge-shaped column cap 4, the upper shock insulation buttress longitudinal rib 5 is arranged outside the upper shock insulation buttress 3, and the upper shock insulation buttress stirrup 6 is respectively sleeved on the upper shock insulation buttress longitudinal rib 5, the top and the bottom of the wide and flat beam 1 and outside the wide and flat beam longitudinal rib 7.

The shock insulation upper pier longitudinal ribs 5 are arranged along the outer edge of the wedge-shaped column cap 4 and bend along with the vertical outer profiles of the shock insulation upper piers 3 and the wedge-shaped column cap 4; the seismic isolation upper buttress stirrups 6 at least comprise at least one peripheral stirrup; the wide flat beam longitudinal bar 7 penetrates through the upper shock insulation buttress 3 and the wedge-shaped column cap 4 in the horizontal direction; the wide and flat beam stirrups 8 are sleeved outside the wide and flat beam longitudinal reinforcements 7, each wide and flat beam stirrup 8 comprises a peripheral stirrup and a plurality of inner stirrups, the width of each inner stirrup is not more than 250 mm, the diameter of each wide and flat beam stirrup 8 is not less than 12 mm, and the distance between the wide and flat beam stirrups 8 along the length direction of the wide and flat beam 1 is not more than 100 mm; the top plate 9 of the shock insulation layer is arranged at the top of the upper structure column 2, and the thickness of the top plate 9 of the shock insulation layer is between 180 mm and 250 mm; the periphery of the top of the shock insulation upper buttress 3 is additionally provided with an edge wedge-shaped cap 4, and a shock insulation upper buttress longitudinal rib 5 and a shock insulation upper buttress stirrup 6 are additionally arranged inside the edge wedge-shaped cap 4, so that the wedge-shaped cap 4 has the function of arranging a structure for increasing the area of the column to the plate rest at the top of the column in order to improve the bearing capacity, the rigidity and the anti-cutting capacity of the plate when the floor load is large; therefore, the bearing capacity and the energy consumption capacity of the product are greatly improved compared with the prior art; the stress distribution of the product is more uniform, and the stress at the beam end can be effectively transmitted to a lower column (shock insulation upper buttress) and an upper column (upper structural column); the beam end plastic area of the product is longer, and the damage degree of the beam end and the column end is obviously lighter than that of a node designed according to the prior art.

Example (b): as shown in fig. 4-6, the utility model relates to a novel wide and flat beam-column node,

under the action of a reciprocating earthquake, when the local vibration acceleration is small, the concrete on the top surface and the bottom surface of the wide and flat beam 1 is slightly damaged by compression or tension, as shown in fig. 4; meanwhile, the pier longitudinal ribs 5 and the longitudinal ribs adjacent to the column caps start to work and bear part of earthquake force, as shown in fig. 5; when the local vibration acceleration is further increased, the concrete damage at the beam end of the wide and flat beam 1 expands towards the inner side of the wedge-shaped column cap 4 and the middle span direction of the beam of the wide and flat beam 1, as shown in fig. 6; meanwhile, the longitudinal ribs at the middle lower end of the upper support pier 3 and the longitudinal ribs in the beam span middle direction of the flat beam 1 start working to share the earthquake force. When the local vibration acceleration is close to or reaches the peak value, the concrete damage at the beam end further extends towards the beam span middle direction, and simultaneously the concrete damage in the node extends to the bottom position of the upper column, as shown in fig. 5, most of longitudinal ribs in the node core area of the component 1 participate in the work, and longitudinal ribs in a larger area in the beam span middle direction of the component 1 participate in the work to share the seismic force. In short, the wedge-shaped column cap 4 and the longitudinal ribs in the column cap are designed in the product, the common stress of the wide flat beam 1, the upper structural column 2 and the upper shock insulation buttress 3 can be effectively coordinated, the seismic force can be effectively and uniformly transmitted to the upper structural column 2 and the upper shock insulation buttress 3, the molding energy consumption area of the component is prolonged, the energy consumption capacity is stronger, and meanwhile, the concrete damage is unlikely to be too heavy.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel wide flat beam column joint is characterized by comprising a wide flat beam (1) consisting of an upper structure column (2), an upper shock insulation buttress (3), a wedge-shaped column cap (4), an upper shock insulation buttress longitudinal rib (5), an upper shock insulation buttress stirrup (6), a wide flat beam longitudinal rib (7), a wide flat beam stirrup (8) and a shock insulation layer top plate (9), wherein the superstructure column (2) is located on top of the seismic isolation upper buttress (3), the upper structural column (2) is horizontally connected with the top of the upper shock insulation buttress (3) into a whole through pouring concrete by the wedge-shaped column cap (4), the shock insulation upper pier longitudinal bar (5) is arranged outside the shock insulation upper pier (3), the upper seismic isolation buttress stirrups (6) are respectively sleeved on the upper seismic isolation buttress longitudinal ribs (5), the top and the bottom of the wide flat beam (1) and the outer parts of the wide flat beam longitudinal ribs (7).

2. The novel wide and flat beam-column joint as claimed in claim 1, wherein the longitudinal bars (5) of the upper seismic isolation pier are arranged along the outer edge of the wedge-shaped column cap (4) and bend along the vertical outer contour of the upper seismic isolation pier (3) and the wedge-shaped column cap (4).

3. The novel wide flat beam column joint as claimed in claim 1, wherein the seismic isolation upper buttress stirrups (6) comprise at least one peripheral stirrup in number.

4. The novel broad flat beam column node according to claim 1, characterized in that the broad flat beam longitudinal ribs (7) pass through the upper seismic isolation buttress (3) and the wedge-shaped cap (4) in the horizontal direction.

5. The novel wide and flat beam and column joint according to claim 1, wherein the wide and flat beam stirrups (8) are sleeved outside the wide and flat beam longitudinal reinforcements (7), the wide and flat beam stirrups (8) comprise a peripheral stirrup and a plurality of inner stirrups, wherein the width of the inner stirrups is not more than 250 mm, the diameter of the wide and flat beam stirrups (8) is not less than 12 mm, and the distance between the wide and flat beam stirrups (8) along the length direction of the wide and flat beam (1) is not more than 100 mm.

6. The novel wide and flat beam column node is characterized in that the seismic isolation layer top plate (9) is arranged at the top of the upper structure column (2), and the thickness of the seismic isolation layer top plate (9) is between 180 and 250 mm.