Welding-free prefabricated beam column connecting joint

Abstract

The utility model discloses a welding-free prefabricated beam column connecting joint, 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 respectively. 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, through modular construction, the construction efficiency is improved, and accurate positioning of the steel beam and the stand column is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of beam-column nodes in steel structure workshops, in particular to a non-welding prefabricated beam-column connection node. Background Art

[0002] Nowadays, steel structures are widely used in industrial production buildings and civil living 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 improve construction efficiency.

[0003] The beam-column joint is one of the key nodes in a steel structure factory. The construction quality of the joint affects the strength of the joint and thus the strength performance of the entire factory. In the existing beam-column joint method, the beams, columns and supporting components are usually welded into a whole through connecting plates, or the beams are directly welded to the columns. The quality of the nodes connected by this welding 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 amount of deviation after welding, which leads to subsequent internal stress in the steel structure, thereby affecting the construction quality and speed of the factory. In addition, on-site welding also has problems such as numerous equipment, complex construction, and high personnel requirements. Therefore, there is an urgent need for a non-welded prefabricated beam-column connection node to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a non-welding prefabricated beam-column connection node to solve the problems caused by beam-column welding.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a non-welded prefabricated 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, the opening width is equal to the thickness of the steel beam waist plate, a plurality of reserved bolt holes are respectively provided on both sides of the reserved socket, the steel beam flange plate is provided with steel beam reserved bolt holes at corresponding positions, 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 a plurality of reserved bolt holes corresponding to the positions and the steel beam reserved bolt holes, the steel beam is fixed 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 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, 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 the 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 distance 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 distance 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] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The weld-free prefabricated beam-column connection node has a simple and reasonable structure, is easy to prefabricate and shape, is convenient to transport, and is easy to operate during on-site construction. It only requires the steel beam to be plugged into the pre-opened reserved socket and then connected with the bolts. The positioning is precise and completely consistent with the design, with almost no error caused by on-site construction. The flanges and waist plates of the steel beam can be bolted to the steel columns with ring plates, eliminating the need for welding, which not only ensures the strength of the node, but also improves construction efficiency, reduces construction difficulty, and avoids quality problems caused by welding connections. After processing, the steel components only have four components: columns, steel beams, connecting plates, and bolts, which effectively reduces the complexity of the components during construction and forms a modular assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall fixed connection effect structure of an embodiment of the utility model;

[0012] Figure 2 yes Figure 1 A schematic diagram of the exploded state of the embodiment shown;

[0013] Figure 3 This is a schematic diagram of the enlarged structure of the steel column module of the present utility model;

[0014] Figure 4 This is a schematic diagram of the enlarged structure of the steel beam module of the utility model;

[0015] Figure 5 This is an enlarged structural diagram of the connection plate module of the utility model;

[0016] Figure 6This is a schematic diagram of the overall fixed connection effect structure of another embodiment of the present utility model;

[0017] Figure 7 yes Figure 6 Schematic diagram of the exploded state of the embodiment shown.

[0018] 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

[0019] See Figures 1 to 5 A non-welded prefabricated beam-column connection node includes a steel column 1.1 and a steel beam 2, wherein the steel column 1.1 can be cylindrical, or can be a square tube or I-beam, etc. The steel beam 2 is usually an I-beam, but can also be an H-beam. The steel column 1.1 is prefabricated with a column end cover 1.2 at the end connected to the steel beam 2. A lower ring plate 1.3 is prefabricated and fixed on the side of the column end cover 1.2 close to the steel column 1.1. The outer periphery of the column end cover 1.2 is provided with a reserved socket 1.5 at the steel beam 2 to be connected. 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, and 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 respectively pre-opened 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.

[0020] 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.

[0021] 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 bottom of the opening 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.

[0022] See Figure 1 and 2 ,as well as Figure 6 and 7 The two pairs of figures correspond to two embodiments of the present invention, namely, 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, as shown in FIG. Figure 6 As 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, which sometimes makes positioning more accurate.

[0023] The installation method of the present invention comprises the following specific steps:

[0024] Prefabricated parts production:

[0025] 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 the 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;

[0026] Construction connection:

[0027] Transport all prefabricated parts to the construction site. After the positioning and installation of the steel column 1 with ring plate is completed, lift the steel beam 2 and move it so that 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, use bolts 4 to loosely connect the steel beam 2 with the column end cover plate 1.2 and the lower ring plate 1.3, then use the connecting plate 3 and bolts 4 to loosely connect the waist plate and the stiffening web 1.4, and finally tighten all bolts 4 to complete the welding-free connection between the beam and the column.

[0028] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined by the claims.

[0029] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. A weld-free prefabricated 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 and fixed on the 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. The opening width is equal to the thickness of the waist plate of the steel beam (2). A plurality of reserved bolt holes are respectively provided on both sides of the reserved socket (1.5). (1.6), steel beam reserved bolt holes (2.1) are opened 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 respectively pre-opened with a plurality of corresponding reserved bolt holes (1.6) and steel beam reserved bolt holes (2.1), and 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. The weld-free prefabricated beam-column connection node according to claim 1, characterized in that: 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 sockets (1.5), and one end of which 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); a plurality of web reserved bolt holes (3.1) are pre-opened on the stiffening web (1.4), the connecting plate (3) and the waist plate end of 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. The weld-free prefabricated 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. The weld-free prefabricated beam-column connection node according to claim 1, characterized in that: The distance between the column end sealing 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 equal to the height of the steel beam (2) minus 2 times the flange thickness, a reserved socket (1.5) is also prefabricated at a corresponding position on the lower ring plate (1.3) to be connected to the steel beam (2).

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