Column and beam connecting structure and beam-column unit

Abstract

The utility model discloses a column and beam connecting structure, which relates to the technical field of building structures and mainly comprises a connecting piece and a friction energy consumption piece, the connecting piece is connected with a column, and the friction energy consumption piece is connected with a beam, or the connecting piece is connected with the beam, and the friction energy consumption piece is connected with the column; moreover, the connecting piece and the friction energy dissipation piece are connected in a sliding mode so that friction energy dissipation can be achieved, and the beam and the column can slide relatively. The utility model further discloses a beam column unit which comprises the column, the beam and the column and beam connecting structure. The beams and the columns can slide for a large distance, the anti-seismic effect can be improved, large earthquakes and small earthquakes can be protected, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a column-beam connection structure and a beam-column unit. Background Art

[0002] At present, my country's construction field is gradually developing towards building industrialization. Prefabricated buildings have the characteristics of short construction period and high efficiency. In addition, since beams, columns and other components are prefabricated in factories, the generation of construction waste at the construction site is greatly reduced, reducing environmental pollution at the construction site.

[0003] In prefabricated buildings, since beams, columns and other components are all prefabricated components, the connection method of beams and columns is particularly critical. The existing method is generally to directly connect prefabricated beams and prefabricated columns with bolts. Although this connection must meet the requirements of "strong columns and weak beams" during design, both beams and columns will suffer varying degrees of damage during an earthquake, increasing the difficulty of subsequent maintenance.

[0004] Patent CN216893721U discloses an assembled beam-column friction energy dissipation connection device. Since its friction energy dissipation plate can only produce a small degree of moving friction energy dissipation, and the beam and column cannot move relative to each other, it can only adapt to smaller earthquakes and cannot provide larger relative displacements. It cannot achieve dual protection against both large and small earthquakes, and its structure is relatively complex, difficult to manufacture and high in cost.

[0005] Therefore, it is urgent to provide a column-beam connection structure and a beam-column unit to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0006] The purpose of the utility model is to provide a precast concrete column and steel beam connection structure to solve the problems existing in the above-mentioned prior art, so that the beam and the column can slide relative to each other and ensure that they can slide over a large distance, thereby improving the earthquake resistance effect, protecting against both large and small earthquakes, and having a simple structure.

[0007] To achieve the above purpose, the utility model provides the following solutions:

[0008] The utility model provides a column and beam connection structure, comprising a connection piece and a friction energy absorbing piece, wherein the connection piece is connected to the column, and the friction energy absorbing piece is connected to the beam, or the connection piece is connected to the beam, and the friction energy absorbing piece is connected to the column; and the connection piece and the friction energy absorbing piece are slidably connected to realize friction energy absorbing and enable the beam and the column to slide relative to each other.

[0009] Preferably, the connecting member is connected to the column, the friction energy absorbing member is connected to the beam, and the friction energy absorbing member can slide in a vertical direction relative to the connecting member.

[0010] Preferably, the connecting member is an L-shaped angle steel, which includes a first plate body and a second plate body which are vertically arranged, and the edge of the second plate body along the width direction of the beam is fixedly connected to the edge of the first plate body along the height direction of the column, the first plate body is used to fit with the column and extend along the height direction of the column, and is fixedly connected to the column, and the second plate body is slidably connected to the friction energy absorption part.

[0011] Preferably, the first plate body is provided with a plurality of first circular holes for first bolts to pass through and be fixedly connected to the column.

[0012] Preferably, the second plate body is provided with an oblong hole along the length direction of the L-shaped angle steel, for allowing the second bolt to pass through and connect to the beam; the friction energy absorbing part is a friction plate, and the friction plate is provided with a plurality of second circular holes, for allowing the second bolt to pass through and connect to the steel beam, and the friction plate can move up and down along the oblong hole.

[0013] Preferably, the friction energy absorbing parts and the connecting parts are provided in two groups, which are respectively arranged on both sides of the web.

[0014] Preferably, both the first bolt and the second bolt are high-strength bolts.

[0015] The utility model also provides a beam-column unit, comprising a column, a beam and the column-beam connection structure as described above.

[0016] Preferably, the column is a precast concrete column, the beam is a steel beam, the web length of the steel beam is greater than the length of the flange, and openings are provided above and below the web, and the openings can ensure the deflection of the beam during a major earthquake.

[0017] Compared with the prior art, the utility model has achieved the following technical effects:

[0018] The connecting piece of the utility model is connected to the column, and the friction energy absorbing part is connected to the beam, or the connecting piece is connected to the beam, and the friction energy absorbing part is connected to the column; and the connecting piece and the friction energy absorbing part are slidably connected, which can realize friction energy absorption, and can make the beam and the column slide relative to each other, and ensure that they can slide over a large distance, which can improve the earthquake resistance effect, and can provide protection regardless of large earthquakes or small earthquakes, and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the connected beam-column units in the embodiment of the utility model;

[0021] Figure 2 A schematic diagram of a column in an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the disassembly of the beam, the connecting member and the friction energy absorbing member in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure in which the connecting piece is arranged on the column in an embodiment of the utility model.

[0024] In the figure: 1-column; 11-reserved hole; 2-beam; 21-web; 22-flange; 3-L-angle steel; 31-first plate body; 32-second plate body; 4-second bolt; 5-long round hole; 6-second circular hole; 7-first circular hole; 8-friction plate; 9-opening. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The purpose of the utility model is to provide a precast concrete column and steel beam connection structure to solve the problems existing in the prior art, so that the beam and the column can slide relative to each other and ensure a large sliding distance, thereby improving the earthquake resistance effect, protecting against both large and small earthquakes, and having a simple structure.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Embodiment 1

[0029] like Figure 1-Figure 4 As shown, the utility model provides a column and beam connection structure, including a connecting member and a friction energy absorbing member, the connecting member is connected to the column 1, and the friction energy absorbing member is connected to the beam 2, or the connecting member is connected to the beam 2, and the friction energy absorbing member is connected to the column 1; and the connecting member and the friction energy absorbing member are slidably connected, which can realize friction energy absorption, and enable the beam 2 and the column 1 to slide relative to each other, and ensure that they can slide over a large distance, which can improve the earthquake resistance effect, and can protect both large and small earthquakes, and has a simple structure.

[0030] In this embodiment, the connecting member is fixedly connected to the column 1, the friction energy absorbing member is fixedly connected to the beam 2, and the friction energy absorbing member can slide in the vertical direction relative to the connecting member. This arrangement is convenient to install and has a simple structure. It should be noted that the connecting member can also be connected to the beam, and the friction energy absorbing member is connected to the column, as long as the beam and the column can slide to achieve friction energy absorption.

[0031] In this embodiment, the connecting member is an L-shaped angle steel 3, which includes a first plate body 31 and a second plate body 32 arranged vertically, and the edge of the second plate body 32 along the width direction of the web of the beam 2 is fixedly connected to the edge of the first plate body 31 extending along the height direction of the column 1. The first plate body 31 is used to fit with the column 1 and extend along the height direction of the column 1, and is fixedly connected to the column 1. The second plate body 32 is slidably connected to the friction energy absorbing part, and the friction energy absorbing part is fixedly connected to the beam. The L-shaped angle steel 3 ensures the connection reliability between the column 1 and the beam 2, and the beam 2 and the friction energy absorbing part can slide relative to the second plate body 32 to frictionally absorb energy, thereby protecting the beam 2 and the column 1.

[0032] In this embodiment, a plurality of first circular holes 7 are provided on the first plate body 31, and reserved holes 11 corresponding to the number and position of the first circular holes 7 are provided on the column 1. The first bolt passes through the first circular holes 7 and the reserved holes 11 and fixes the first plate body 31 to the column 1.

[0033] As a preferred embodiment, there are three first circular holes 7 on the first plate body 31 and they are arranged vertically, and reserved holes 11 corresponding to the first circular holes 7 are provided on the column to ensure the reliability of the connection between the L-shaped angle steel 3 and the column 1. It should be noted that the number and arrangement of the first circular holes 7 can be appropriately changed, such as four in double rows or two in a single row, etc., as long as a reliable connection between the L-shaped angle steel 3 and the column 1 can be achieved. This technology is a mature existing technology and will not be elaborated on here.

[0034] In this embodiment, the second plate body 32 is provided with an oblong hole 5 along the length direction of the L-shaped angle steel 3, for the second bolt 4 to pass through and connect with the beam 2; the friction energy absorbing part is a friction plate 8, the friction plate 8 is located between the beam 2 and the second plate body 32, and a plurality of second circular holes 6 are provided on the friction plate 8, for the second bolt 4 to pass through and connect with the beam 2, and the friction plate 8 can move up and down along the length direction of the oblong hole 5, the width of the oblong hole 5 is greater than the diameter of the second circular hole 6, the diameter of the second circular hole 6 is the same as the diameter of the third circular hole on the web 21 of the beam 2, and when the second bolt 4 passes through the L-shaped angle steel 3, the friction plate 8 and the web 21 in sequence, there is a gap between the screw rod of the second bolt 4 and the oblong hole 5, and it fits with the edges of the second circular hole 6 and the third circular hole. This arrangement can ensure that the beam 2 and the friction plate 8 are relatively fixed and then slide relative to the L-shaped angle steel 3 as a whole to achieve friction energy dissipation and improve the seismic effect of the structure.

[0035] In this embodiment, two groups of friction energy absorbing parts and connecting parts are provided, which are respectively arranged on both sides of the web 21. The two-side arrangement ensures double-sided constraint and double-sided friction, further improving the friction energy absorbing effect and thus improving the anti-seismic effect.

[0036] In this embodiment, the first bolt and the second bolt 4 are both high-strength bolts, such as 8.8 or 10.9 grade high-strength bolts, etc. It should be noted that other grades of high-strength bolts can also be used, such as 9.8, 12.9, etc., as long as a reliable connection between the L-shaped angle steel 3 and the column 1 and the beam 2 can be achieved.

[0037] Embodiment 2

[0038] The utility model also provides a beam-column unit, comprising a column 1, a beam 2 and the above column-beam connection structure.

[0039] In this embodiment, the column is a precast concrete column, and the beam is a steel beam. The length of the web 21 of the steel beam is greater than the length of the flange 22, and openings 9 are provided above and below the web 21. The openings 9 can ensure the deflection of the beam 2 during a large earthquake. The openings 9 are preferably set as semicircular openings. When a large earthquake occurs, the beam 2 will undergo a large displacement and the rotation amplitude will be too large. At this time, the openings 9 come into play and provide deflection space for the deflection of the beam 2. In addition, the provision of the openings 9 can also disperse stress to reinforce weak points with large bending moments and can also facilitate threading.

[0040] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A column-beam connection structure, characterized in that: It comprises a connecting member and a friction energy absorbing member, wherein the connecting member is used to be connected to a column, and the friction energy absorbing member is used to be connected to a beam, or the connecting member is used to be connected to the beam, and the friction energy absorbing member is used to be connected to the column; and the connecting member and the friction energy absorbing member are slidably connected to realize friction energy absorption and enable the beam and the column to slide relative to each other.

2. The column-beam connection structure according to claim 1, characterized in that: The connecting member is used to be connected to the column, the friction energy absorbing member is used to be connected to the beam, and the friction energy absorbing member can slide in a vertical direction relative to the connecting member.

3. The column-beam connection structure according to claim 2, characterized in that: The connecting member is an L-shaped angle steel, which includes a first plate body and a second plate body arranged vertically, and the edge of the second plate body along the width direction of the beam is fixedly connected to the edge of the first plate body along the height direction of the column, the first plate body is used to fit with the column and extend along the height direction of the column, and is fixedly connected to the column, and the second plate body is slidably connected to the friction energy absorbing part.

4. The column-beam connection structure according to claim 3, characterized in that: The first plate body is provided with a plurality of first circular holes for first bolts to pass through and be fixedly connected to the column.

5. The column-beam connection structure according to claim 4, characterized in that: The second plate body is provided with an oblong hole along the length direction of the L-shaped angle steel, for allowing the second bolt to pass through and connect to the beam; the friction energy absorbing part is a friction plate, and the friction plate is provided with a plurality of second oblong holes, for allowing the second bolt to pass through and connect to the beam, and the friction plate can move up and down along the oblong hole.

6. The column-beam connection structure according to claim 5, characterized in that: The friction energy absorbing parts and the connecting parts are both provided in two groups, which are respectively arranged on both sides of the web.

7. The column-beam connection structure according to claim 5, characterized in that: The first bolt and the second bolt are both high-strength bolts.

8. A beam-column unit, characterized in that: It comprises a column, a beam and a column-beam connection structure as described in any one of claims 1-7.

9. The beam-column unit according to claim 8, characterized in that: The column is a precast concrete column, and the beam is a steel beam. The length of the web of the steel beam is greater than the length of the flange, and openings are provided above and below the web, and the openings can ensure the deflection of the beam during a major earthquake.

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