Modularized assembly type beam-column connecting joint and mounting method thereof

Abstract

The invention discloses a modular assembly type beam-column connecting joint and a mounting method thereof, relates to the technical field of beam-column joints in steel structure factory buildings, and aims to solve the problems caused by beam-column welding. A column end sealing plate is fixedly arranged at the end, connected with a steel beam, of a steel stand column in a prefabricated mode, a lower annular plate is fixedly arranged on the side, close to the steel stand column, of the column end sealing plate in a prefabricated mode, a reserved inserting opening is formed in the position, to be connected with the steel beam, of the periphery of the column end sealing plate, and a plurality of reserved bolt holes are formed in the two sides of the reserved inserting opening correspondingly; steel beam reserved bolt holes are formed in the corresponding positions of flange plates of the steel beam, the lower annular plate makes contact with the flange plate on the side, away from the column end sealing plate, of the steel beam, a plurality of reserved bolt holes and steel beam reserved bolt holes corresponding in position are pre-formed in the lower annular plate and the steel beam respectively, and the steel beam is fixedly connected with the column end sealing plate and the lower annular plate only through a plurality of bolts. On the premise that the node quality is guaranteed, the construction efficiency is improved through modular construction, and accurate positioning of the steel beams and the stand columns is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of beam-column nodes in steel structure workshops, and in particular to a modular assembled beam-column connection node and an installation method thereof. Background Art

[0002] Nowadays, steel structures are widely used in industrial production buildings and civil life buildings due to their high strength, good overall rigidity, light weight, good earthquake and wind deformation resistance, and the fact that most of them are environmentally friendly and reusable green building materials. They can be pre-processed, conveniently transported, and have improved construction efficiency.

[0003] The beam-column joint is one of the key nodes in the steel structure plant. The construction quality of the joint affects the strength of the joint and thus affects the strength performance of the entire plant. In the existing beam-column joint method, the beam, column and supporting components are usually welded into a whole through a connecting plate, or the beam is directly welded to the column. The quality of the welded connection is difficult to guarantee, and the construction of high-altitude operations is difficult. On the other hand, this connection method cannot achieve the connection and positioning of different steel structure components between nodes. Sometimes there is a small deviation after welding, which leads to subsequent internal stress in the steel structure, which in turn affects the construction quality and speed of the plant. In addition, on-site welding also has problems such as numerous equipment, complex construction, and high personnel requirements. Therefore, a modular assembled beam-column connection node and its installation method are urgently needed to solve this problem. Summary of the invention

[0004] The object of the present invention is to provide a modular assembled beam-column connection node and an installation method thereof, so as to solve the problems caused by beam-column welding.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a modular assembled beam-column connection node, comprising a steel column and a steel beam, the steel column is prefabricated with a column end cover plate at the end connected to the steel beam, the column end cover plate is prefabricated with a lower ring plate on the side close to the steel column, the outer periphery of the column end cover plate is provided with a reserved socket at the steel beam to be connected, a plurality of reserved bolt holes are respectively provided on both sides of the reserved socket, reserved bolt holes for the steel beam are provided at corresponding positions of the flange plate of the steel beam, the lower ring plate is in contact with the flange plate on the side of the steel beam away from the column end cover plate, and the two are respectively pre-opened with reserved bolt holes corresponding to a plurality of positions and reserved bolt holes for the steel beam, and the steel beam is fixedly connected to the column end cover plate and the lower ring plate only by a plurality of bolts.

[0006] Preferably, a stiffening web is prefabricated and fixed between the column end cover plate and the lower ring plate, the number and position of which correspond to the reserved sockets, and one end is fixedly connected to the steel column; connecting plates are provided on both sides between each stiffening web and the steel beam, and a plurality of web reserved bolt holes are pre-opened at the ends of the stiffening web, the connecting plate and the waist plate of the steel beam, respectively; one side of the connecting plate is fixedly connected to the steel beam by a plurality of bolts, and the other side of the connecting plate is fixedly connected to the stiffening web by a plurality of bolts.

[0007] Preferably, the stiffening web and the connecting plate are parallel to the reserved socket, and the distance from one end of the stiffening web away from the steel column to the surface of the steel column is equal to the distance from the opening bottom of the reserved socket to the surface of the steel column.

[0008] Preferably, the spacing between the column end cover plate and the lower ring plate is equal to the height of the steel beam minus 1 or 2 times the flange thickness, and when the spacing is the height of the steel beam minus 2 times the flange thickness, a reserved socket is also prefabricated at the corresponding position on the lower ring plate to be connected to the steel beam.

[0009] Preferably, the opening width of the reserved socket is equal to the thickness of the steel beam waist plate.

[0010] Another technical solution provided by the present invention: the installation method of the above-mentioned modular assembled beam-column connection node includes the following specific steps: firstly, prefabricate the column end cover plate and the lower ring plate according to the designed beam-column connection orientation, open reserved sockets and reserved bolt holes at corresponding positions on the two, weld the column end cover plate and the lower ring plate to the steel column, and then, according to the designed beam-column connection orientation, prefabricate the stiffening web plate and the connecting plate with the web reserved bolt holes, weld the stiffening web plate to the end face of the steel column between the column end cover plate and the lower ring plate to form a steel column with a ring plate, and open a hole on the flange plate of the steel beam to be connected. Set reserved bolt holes on the steel beam corresponding to the upper positions of the column end cover plate and the lower ring plate, and set reserved bolt holes on the web plate corresponding to the upper positions of the connecting plate on the waist plate to complete the production of prefabricated parts; transport all prefabricated parts to the construction site, wait for the positioning and installation of the steel column with the ring plate to be completed, lift the steel beam and move it so that the end of the waist plate is inserted into the reserved socket, and ensure that the two flange plates are in contact with the column end cover plate and the lower ring plate respectively, first use bolts to loosely connect the steel beam to the column end cover plate and the lower ring plate, then use the connecting plate and bolts to loosely connect the waist plate to the stiffening web plate, and finally tighten all bolts to complete the welding-free connection between the beam and the column.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The modular assembled beam-column connection node and the installation method thereof have a simple and reasonable structure, are easy to process and shape after prefabrication, are convenient to transport, and are also easy to operate during on-site construction. The steel beams only need to be plugged into the pre-opened reserved sockets and then connected with bolts. The positioning is accurate and completely consistent with the design, with almost no error caused by on-site construction. The flanges and waist plates of the steel beams can be bolted to the steel columns with ring plates, eliminating the need for welding, which not only ensures the strength of the nodes, but also improves the construction efficiency, reduces the construction difficulty, and avoids the quality problems caused by welding connections. After the steel components are processed, there are only four components, namely, columns, steel beams, connection plates, and bolts, which effectively reduces the complexity of the components during the construction process and forms a modular assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall fixed connection effect structure of an embodiment of the present invention;

[0014] Figure 2 yes Figure 1 A schematic diagram of an exploded state of the embodiment shown;

[0015] Figure 3 It is a schematic diagram of the enlarged structure of the steel column module of the present invention;

[0016] Figure 4 It is a schematic diagram of the enlarged structure of the steel beam module of the present invention;

[0017] Figure 5 It is a schematic diagram of the enlarged structure of the connection plate module of the present invention;

[0018] Figure 6 is a schematic diagram of the overall fixed connection effect structure of another embodiment of the present invention;

[0019] Figure 7 yes Figure 6 Schematic diagram of the exploded state of the embodiment shown.

[0020] In the figure: 1. Steel column with ring plate, 1.1. Steel column, 1.2. Column end cover plate, 1.3. Lower ring plate, 1.4. Stiffening web, 1.5. Reserved socket, 1.6. Reserved bolt holes; 2. Steel beam, 2.1. Reserved bolt holes for steel beam; 3. Connecting plate, 3.1. Reserved bolt holes for web; 4. Bolts. DETAILED DESCRIPTION

[0021] See also Figures 1 to 5A modular assembled beam-column connection node includes a steel column 1.1 and a steel beam 2, wherein the steel column 1.1 can be cylindrical, square tube or I-beam, etc., the steel beam 2 is usually I-beam, or H-beam, the steel column 1.1 is prefabricated with a column end cover plate 1.2 at the end connected to the steel beam 2, the column end cover plate 1.2 is prefabricated with a lower ring plate 1.3 on one side close to the steel column 1.1, and the outer periphery of the column end cover plate 1.2 is provided with a reserved socket 1.5 at the steel beam 2 to be connected, and the reserved socket 1.5 is usually The opening width should be set to be equal to the thickness of the waist plate of the steel beam 2 to facilitate accurate positioning. A plurality of reserved bolt holes 1.6 are respectively provided on both sides of the reserved socket 1.5. Steel beam reserved bolt holes 2.1 are provided at corresponding positions of the flange plates of the steel beam 2. The lower ring plate 1.3 is in contact with the flange plate of the steel beam 2 on the side away from the column end cover plate 1.2, and the two are respectively provided with a plurality of corresponding reserved bolt holes 1.6 and steel beam reserved bolt holes 2.1. The steel beam 2 is fixedly connected to the column end cover plate 1.2 and the lower ring plate 1.3 only by a plurality of bolts 4.

[0022] like Figure 2 As shown, in order to make the connection more secure without welding, in a preferred embodiment, a stiffening web 1.4 is prefabricated and fixed between the column end cover 1.2 and the lower ring plate 1.3, the number and position of which correspond to the reserved socket 1.5, and one end is fixedly connected to the steel column 1.1; connecting plates 3 are provided on both sides between each stiffening web 1.4 and the steel beam 2, and a plurality of web reserved bolt holes 3.1 are pre-opened in the stiffening web 1.4, the connecting plate 3 and the waist plate end of the steel beam 2, respectively, one side of the connecting plate 3 is fixedly connected to the steel beam 2 by a plurality of bolts 4, and the other side of the connecting plate 3 is fixedly connected to the stiffening web 1.4 by a plurality of bolts 4.

[0023] The stiffening web 1.4 and the connecting plate 3 can be further set to be parallel to the reserved socket 1.5. At the same time, the distance from the end of the stiffening web 1.4 away from the steel column 1.1 to the surface of the steel column 1.1 and the distance from the opening bottom of the reserved socket 1.5 to the surface of the steel column 1.1 can be set to be equal. That is, after the steel beam 2 is inserted into the reserved socket 1.5, the end of the waist plate can be used to support the stiffening web 1.4 at various places and the surface contact can be used as a reference for positioning.

[0024] See also Figure 1 and 2 ,as well as Figure 6 and 7 The two pairs of figures correspond to two embodiments of the present invention, that is, the distance between the column end cover plate 1.2 and the lower ring plate 1.3 is equal to the height of the steel beam 2 minus 1 or 2 times the flange thickness, and when the distance is the height of the steel beam 2 minus 2 times the flange thickness, a reserved socket 1.5 is also prefabricated at the corresponding position of the lower ring plate 1.3 to be connected to the steel beam 2, such as Figure 6As shown, the steel beam 2 clamps the column end cover plate 1.2 and the lower ring plate 1.3 between the two flange plates, so that the positioning is sometimes more accurate.

[0025] The installation method of the present invention comprises the following specific steps:

[0026] Prefabricated parts production:

[0027] First, prefabricate the column end cover plate 1.2 and the lower ring plate 1.3 according to the designed beam-column connection orientation, open reserved sockets 1.5 and reserved bolt holes 1.6 at corresponding positions on the two, weld the column end cover plate 1.2 and the lower ring plate 1.3 to the steel column 1.1, and then prefabricate the stiffening web 1.4 and the connecting plate 3 with web reserved bolt holes 3.1 according to the designed beam-column connection orientation, weld the stiffening web 1.4 to the end surface of the steel column 1.1 between the column end cover plate 1.2 and the lower ring plate 1.3 to form a steel column 1 with a ring plate, open steel beam reserved bolt holes 2.1 corresponding to the positions on the column end cover plate 1.2 and the lower ring plate 1.3 on the flange plate of the steel beam 2 to be connected, and open web reserved bolt holes 3.1 corresponding to the positions on the connecting plate 3 on the waist plate;

[0028] Construction connection:

[0029] Transport all prefabricated parts to the construction site. After the steel column 1 with ring plate is positioned and installed, lift the steel beam 2 and move it until the end of its waist plate is inserted into the reserved socket 1.5, and ensure that the two flange plates are in contact with the column end cover plate 1.2 and the lower ring plate 1.3 respectively. First, loosely connect the steel beam 2 with the column end cover plate 1.2 and the lower ring plate 1.3 with bolts 4, then loosely connect the waist plate with the stiffening web 1.4 with the connecting plate 3 and bolts 4, and finally tighten all bolts 4 to complete the welding-free connection of the beam and column.

[0030] The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined by the claims.

[0031] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A modular assembled beam-column connection node, comprising a steel column (1.1) and a steel beam (2), characterized in that: The steel column (1.1) is prefabricated with a column end cover plate (1.2) at the end connected to the steel beam (2); a lower ring plate (1.3) is prefabricated with a side of the column end cover plate (1.2) close to the steel column (1.1); a reserved socket (1.5) is provided on the outer periphery of the column end cover plate (1.2) at the steel beam (2) to be connected; a plurality of reserved bolt holes (1.6) are respectively provided on both sides of the reserved socket (1.5); steel beam reserved bolt holes (2.1) are provided at corresponding positions of the flange plate of the steel beam (2); the lower ring plate (1.3) is in contact with the flange plate of the steel beam (2) on the side away from the column end cover plate (1.2); and the two are prefabricated with a plurality of corresponding reserved bolt holes (1.6) and steel beam reserved bolt holes (2.1); the steel beam (2) is fixedly connected to the column end cover plate (1.2) and the lower ring plate (1.3) only by a plurality of bolts (4).

2. A modular assembled beam-column connection node according to claim 1, characterized in that: A stiffening web (1.4) is prefabricated and fixedly arranged between the column end cover plate (1.2) and the lower ring plate (1.3), the number and position of which correspond to the reserved socket (1.5), and one end of which is fixedly connected to the steel column (1.1); connecting plates (3) are arranged on both sides between each stiffening web (1.4) and the steel beam (2); a plurality of web reserved bolt holes (3.1) are pre-opened at the waist plate ends of the stiffening web (1.4), the connecting plate (3) and the steel beam (2); one side of the connecting plate (3) is fixedly connected to the steel beam (2) by a plurality of bolts (4), and the other side of the connecting plate (3) is fixedly connected to the stiffening web (1.4) by a plurality of bolts (4).

3. A modular assembled beam-column connection node according to claim 2, characterized in that: The stiffening web (1.4) and the connecting plate (3) are both parallel to the reserved socket (1.5), and the distance from one end of the stiffening web (1.4) away from the steel column (1.1) to the surface of the steel column (1.1) is equal to the distance from the bottom of the opening of the reserved socket (1.5) to the surface of the steel column (1.1).

4. A modular assembled beam-column connection node according to claim 1, characterized in that: The distance between the column end cover plate (1.2) and the lower ring plate (1.3) is equal to the height of the steel beam (2) minus 1 or 2 times the flange thickness, and when the distance is the height of the steel beam (2) minus 2 times the flange thickness, a reserved socket (1.5) is also prefabricated at the corresponding position on the lower ring plate (1.3) to be connected to the steel beam (2).

5. A modular assembled beam-column connection node according to any one of claims 1 to 4, characterized in that: The opening width of the reserved socket (1.5) is equal to the thickness of the waist plate of the steel beam (2).

6. A method for installing a modular assembled beam-column connection node according to any one of claims 1 to 5, characterized in that: The invention comprises the following specific steps: firstly, prefabricating a column end cover plate (1.2) and a lower ring plate (1.3) according to the designed beam-column connection orientation, opening a reserved socket (1.5) and a reserved bolt hole (1.6) at corresponding positions on the two, welding the column end cover plate (1.2) and the lower ring plate (1.3) to a steel column (1.1), and then, prefabricating a stiffening web plate (1.4) and a connecting plate (3) with a web reserved bolt hole (3.1) according to the designed beam-column connection orientation, welding the stiffening web plate (1.4) to the end surface of the steel column (1.1) between the column end cover plate (1.2) and the lower ring plate (1.3) to form a steel column (1) with a ring plate, and opening a flange plate on the steel beam (2) to be connected to connect the column end cover plate (1.2) and the lower ring plate (1.6) to form a steel column (1) with a ring plate. .3) reserved bolt holes (2.1) on the steel beam corresponding to the upper position, and reserved bolt holes (3.1) on the web corresponding to the upper position of the connecting plate (3) are opened on the waist plate to complete the production of prefabricated parts; all prefabricated parts are transported to the construction site, and after the positioning and installation of the steel column with ring plate (1) is completed, the steel beam (2) is hoisted and moved to insert the end of its waist plate into the reserved socket (1.5), and it is ensured that the two flange plates are in contact with the column end cover plate (1.2) and the lower ring plate (1.3) respectively, firstly, the steel beam (2) is loosely connected with the column end cover plate (1.2) and the lower ring plate (1.3) by bolts (4), and then the waist plate is loosely connected with the stiffening web (1.4) by the connecting plate (3) and bolts (4), and finally, all bolts (4) are tightened to complete the non-welding connection of the beam and column.

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