Full-bolt connection joint of steel column and steel beam or steel connecting piece

Abstract

The utility model discloses a full-bolt connection node of a steel column and a steel beam or a steel connecting piece, which is arranged between the steel column and an inter-column piece connected with the steel column, the inter-column piece is the steel beam or the steel connecting piece, and the full-bolt connection node of the steel column and the steel beam or the steel connecting piece comprises penetrating connection fixing ports correspondingly arranged on two opposite side walls of the steel column. A penetrating connecting piece penetrating through the steel column is fixedly welded to the penetrating fixing opening, and a steel column connecting structure is fixedly arranged at the outer end of the penetrating connecting piece; a flange connecting block is fixedly arranged on the inter-column piece, and a flange connecting bolt which can be in threaded connection with the steel column connecting structure is mounted on the flange connecting block in a penetrating manner. According to the utility model, the processing difficulty is reduced, the processing welding amount is reduced, the integrity of the steel column is ensured, the comprehensive pouring of concrete in the steel column is facilitated, the on-site construction welding operation is avoided, the on-site connection difficulty is reduced, and the connection strength is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled steel structure buildings, in particular to a fully bolted connection node between a steel column and a steel beam or a steel connecting piece. Background Art

[0002] Prefabricated steel structure buildings are made of steel or steel plates as basic components. They have the advantages of high strength, light weight, good earthquake resistance, high degree of industrialization, short construction period, and less environmental pollution. They are energy-saving, environmentally friendly, and recyclable green buildings. Prefabricated steel structure buildings are constructed in the following order: steel column → column parts (steel beams or steel connectors) → floor slabs → walls. The column parts are connected to the steel columns to form the building skeleton. Therefore, the strength of the connection nodes between the steel columns and the column parts is an important factor affecting the strength of the entire building structure.

[0003] Under existing technical conditions, the connection nodes between steel columns and column members mainly adopt a bolt-welding combination connection method. In this connection method, the upper flange and lower flange of the column member are welded to the steel column, and the web of the column member and the connecting plate on the steel column are connected with high-strength bolts. Strengthening measures are adopted in the steel column to avoid deformation of the steel column structure at the connection node.

[0004] At present, the reinforcement measures mainly include two methods: embedded steel connecting plate and cross-cutting steel connecting plate. Fig.10 As shown in the figure, the steel connecting plate is welded inside the steel column. This method is difficult to weld and complicated to process, especially for finished steel columns with small cross-sectional dimensions. This method is very difficult to process. Fig.11 As shown, the steel column is disconnected and the steel connecting plate passes through the steel column. Although this method is less difficult to process, the disconnection must be fully welded, the welding amount is large, and the alignment of the upper and lower steel columns is prone to deviation.

[0005] In addition, the above two strengthening measures will block the inner cavity of the steel column, which is not conducive to the full pouring of concrete in the steel column. Moreover, the bolt-welding connection between the column parts and the steel column is affected by the welding conditions and manual welding level of the construction site. The on-site connection is difficult, the welding quality is difficult to guarantee, and the strength of the connection node has hidden dangers. Therefore, the connection nodes between the steel column and the column parts, that is, the steel column and the steel beam or steel connector, should be further improved to improve the above situation. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a fully bolted connection node between a steel column and a steel beam or a steel connecting piece which reduces the processing difficulty, reduces the processing welding amount, ensures the integrity of the steel column, is conducive to the comprehensive pouring of concrete in the steel column, eliminates on-site construction welding operations, reduces the difficulty of on-site connection, and is conducive to ensuring the connection strength.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a fully bolted connection node between a steel column and a steel beam or a steel connecting piece, which is arranged between a steel column and a column inter-piece connected to the steel column, the column inter-piece is a steel beam or a steel connecting piece, including through-connection fixing openings correspondingly arranged on the two opposite side walls of the steel column, a through-connection connecting piece passing through the steel column is fixedly welded on the through-connection fixing opening, and a steel column connecting structure is fixedly arranged on the outer end of the through-connection connecting piece; a flange connecting block is fixedly arranged on the column inter-piece, and a flange connecting bolt that can be threadedly connected to the steel column connecting structure is installed on the flange connecting block.

[0008] As a preferred technical solution, the through-connection fixing port is a circular hole, and the through-connection connector is a through-connection rod passing through the through-connection fixing port; the steel column connection structure includes a through-connection thread arranged on the outer end of the through-connection rod, a threaded connection tube is threadedly installed on the through-connection thread, and the flange connection bolt is threadedly connected to the threaded connection tube.

[0009] As a preferred technical solution, the through-connection fixing opening is a rectangular opening, the through-connection connector is a through-connection steel plate passing through the through-connection fixing opening, the steel column connection structure includes a steel column connection block fixedly welded between the outer end of the through-connection steel plate and the steel column, the steel column connection block is provided with a steel column connection screw hole for connecting the flange connection bolts; a flange bolt fastening nut is installed on the flange connection bolt at the side of the flange connection block close to the steel column.

[0010] As a preferred technical solution, two of the through-connecting steel plates are respectively provided on the steel column corresponding to each of the flange connecting blocks, and the steel column connecting blocks are fixedly welded between the outer ends of the two through-connecting steel plates and the steel column.

[0011] As a preferred technical solution, the thickness of the steel column connection block is greater than the outer end height of the through-connecting steel plate, and the width of the steel column connection block is greater than the width of the through-connecting steel plate.

[0012] As a preferred technical solution, the penetration connectors are respectively arranged through each pair of opposite side walls of the steel column, and the penetration connectors in different directions are arranged at different heights.

[0013] As a preferred technical solution, the steel column connecting structure is respectively provided at the upper flange and lower flange of the steel column corresponding to the column spacer, and the flange connecting blocks are respectively fixed at the upper flange and lower flange of the column spacer, and each flange connecting block is respectively equipped with a flange connecting bolt that can be threadedly connected to the corresponding steel column connecting structure.

[0014] As a preferred technical solution, a protruding connecting steel plate extending to the web of the inter-column member is fixedly provided on the steel column, and the protruding connecting steel plate is fixedly connected to the web of the inter-column member with bolts.

[0015] Due to the adoption of the above technical solution, a fully bolted connection node between a steel column and a steel beam or a steel connector is provided between a steel column and a column member connected to the steel column. The column member is a steel beam or a steel connector, including corresponding through-connection fixing ports provided on opposite side walls of the steel column, a through-connection connector that penetrates the steel column is fixedly welded on the through-connection fixing port, and a steel column connection structure is fixedly provided on the outer end of the through-connection connector; a flange connection block is fixedly provided on the column member, and a flange connection bolt that can be threadedly connected to the steel column connection structure is installed on the flange connection block. The through-connection connector of the utility model is fixed by opening the through-connection fixing port on the steel column and then penetrating and welding. Compared with the existing embedded steel connection plate and transverse steel connection plate, the processing difficulty is reduced, the processing welding amount is reduced, the integrity of the steel column is guaranteed, and the through-connection connector will not completely block the inner cavity of the steel column, which is conducive to the full pouring of concrete in the steel column. During on-site construction, the fixed connection between the flange position of the column member and the steel column can be achieved by connecting the steel column connection structure at the outer end of the through-connector and the flange connection bolts, eliminating on-site construction welding operations, reducing the difficulty of on-site connection, and helping to ensure the connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0017] Figure 1 It is a cross-sectional structural schematic diagram of the first embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of AA structure;

[0019] Figure 3 yes Figure 1 Schematic diagram of BB structure;

[0020] Figure 4 It is a cross-sectional structural schematic diagram of the second embodiment of the utility model;

[0021] Figure 5 yes Figure 4 Schematic diagram of CC structure;

[0022] Figure 6 yes Figure 4 Schematic diagram of DD structure;

[0023] Figure 7 It is a cross-sectional structural schematic diagram of the third embodiment of the present utility model;

[0024] Figure 8 yes Figure 7 Schematic diagram of EE structure;

[0025] Fig. 9 yes Figure 7 Schematic diagram of FF structure;

[0026] Fig.10 It is a schematic diagram of the cross-sectional structure of the existing embedded steel connecting plate;

[0027] Fig.11 It is a schematic diagram of the cross-sectional structure of the existing cross-steel connecting plate.

[0028] In the figure: 1-steel column; 2-column member; 3-through-connecting member; 31-through-fixing port; 32-through-connecting rod; 33-through-connecting steel plate; 4-steel column connection structure; 41-through-connecting thread; 42-threaded connecting tube; 43-steel column connection block; 44-steel column connection screw hole; 45-flange bolt fastening nut; 5-flange connection block; 51-flange connection bolt; 6-extending connection steel plate; 91-embedded steel connection plate; 92-cross-connecting steel connection plate. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figures 1 to 9 As shown together, a fully bolted connection node between a steel column and a steel beam or a steel connector is arranged between a steel column 1 and a column member 2 connected to the steel column 1, wherein the column member 2 is a steel beam or a steel connector, and includes through-connection fixing openings 31 correspondingly arranged on two opposite side walls of the steel column 1, and a through-connection connector 3 penetrating the steel column 1 is fixedly welded to the through-connection fixing opening 31, and a steel column connection structure 4 is fixedly arranged on the outer end of the through-connection connector 3; a flange connection block 5 is fixedly arranged on the column member 2, and a flange connection bolt 51 which can be threadedly connected to the steel column connection structure 4 is installed on the flange connection block 5.

[0031] The through-connector 3 is both a structure for reinforcing the steel column 1 at the connection node position and a carrier structure connected to the inter-column member 2. It is fixed on the steel column 1 by opening the through-connection fixing port 31 on the steel column 1 and then penetrating and welding. The through-connection fixing port 31 is convenient for machining. The through-connector 3 is easy to penetrate and is easy to weld on the outer side of the steel column 1 after penetration. Compared with the existing embedded steel connecting plate 91 and transverse steel connecting plate 92, the processing difficulty is reduced, the processing welding amount is reduced, the integrity of the steel column 1 is guaranteed, and the through-connector 3 will not completely block the inner cavity of the steel column 1, which is conducive to the comprehensive pouring of concrete in the steel column 1.

[0032] During on-site construction, by means of the connection between the steel column connection structure 4 at the outer end of the through-connector 3 and the flange connection bolts 51, the flange position of the column member 2 and the steel column 1 can be fixedly connected, eliminating on-site construction welding operations, reducing the difficulty of on-site connection, and facilitating ensuring the connection strength.

[0033] In actual connection, the steel column connection structure 4 is respectively provided at the upper flange and lower flange of the steel column 1 corresponding to the column spacing member 2, and the flange connection blocks 5 are respectively fixed at the upper flange and lower flange of the column spacing member 2, and each flange connection block 5 is respectively provided with a flange connection bolt 51 which can be threadedly connected with the corresponding steel column connection structure 4, thereby forming respective connections between the upper flange and lower flange of the column spacing member 2 and the steel column 1.

[0034] Conventionally, the steel column 1 is fixed with a protruding connecting steel plate 6 extending to the web of the column member 2, and the protruding connecting steel plate 6 is fixedly connected with the web of the column member 2 by bolts. The bolt connection at the web position is well known to those skilled in the art and will not be described in detail here. Thus, the column member 2 and the steel column 1 are integrally connected by full bolts, and on-site welding construction is no longer required at the connection node, the connection difficulty is significantly reduced, and the connection strength is easier to ensure.

[0035] Among them, the through-and-through fixing opening 31 can be a circular hole, which can be directly drilled out by drilling, and the processing is convenient; the through-and-through connector 3 is a through-and-through connecting rod 32 that passes through the through-and-through fixing opening 31, and the through-and-through connecting rod 32 can be implemented by round steel, steel bars or bolts, etc., and there is no limitation here. After the through-and-through connecting rod 32 passes through the through-and-through fixing opening 31, it is welded on the outer side surface of the steel column 1. This welding can be either groove welding or fillet welding, and there is no limitation here. And whether the through-and-through connecting rod 32 passes through the steel column 1 at one end or both ends, and the length of the through-and-through connecting rod 32 passing through the steel column 1, can be flexibly set according to the strength and connection requirements, and there is no limitation here.

[0036] In the case where the through-connecting member 3 is the through-connecting rod 32, the steel column connection structure 4 includes a through-connecting thread 41 provided on the outer end of the through-connecting rod 32, a threaded connection tube 42 is threadedly mounted on the through-connecting thread 41, and the flange connection bolt 51 is threadedly connected with the threaded connection tube 42 to form an equal-strength bolt connection. The threaded connection tube 42 can be implemented by a long nut or a sleeve with an internal thread, etc., which is not limited here. At the end of the threaded connection, the threaded connection tube 42 should be tightened to the flange connection block 5 to tighten the flange connection bolt 51.

[0037] The through-and-through fixing opening 31 may also be a rectangular opening, which may be produced by cutting or milling, and this processing is also convenient. The through-and-through connector 3 is a through-and-through connecting steel plate 33 that passes through the through-and-through fixing opening 31. The through-and-through connecting steel plate 33 passes through the through-and-through fixing opening 31 and is welded to the outer side surface of the steel column 1. Whether the through-and-through connecting steel plate 33 passes through the steel column 1 at one end or at both ends, and the length of the through-and-through connecting steel plate 33 passing through the steel column 1 are also flexibly set according to the strength and connection requirements, and are not limited here.

[0038] In the case where the through-connecting member 3 is the through-connecting steel plate 33, the steel column connection structure 4 includes a steel column connection block 43 fixedly welded between the outer end of the through-connecting steel plate 33 and the steel column 1, and the steel column connection block 43 is provided with a steel column connection screw hole 44 for the flange connection bolt 51 to connect; and a flange bolt fastening nut 45 is installed on the flange connection bolt 51 at the side of the flange connection block 5 close to the steel column 1. The outer end of the through-connecting steel plate 33 forms a side reinforcement structure of the steel column connection block 43, which can form a stronger connection strength between the steel column connection block 43 and the steel column 1 after welding, and the flange connection bolt 51 is threadedly connected to the steel column connection block 43, so as to facilitate the realization of an overall stronger connection strength at the node. After the threaded connection, the flange bolt fastening nut 45 is tightened to the flange connection block 5 to tighten the flange connection bolt 51.

[0039] Preferably, two of the through-connecting steel plates 33 are respectively penetrated corresponding to each of the flange connecting blocks 5 on the steel column 1, and the steel column connecting block 43 is fixedly welded between the outer ends of the two through-connecting steel plates 33 and the steel column 1, so as to set two through-connecting steel plates 33, thereby further improving the deformation resistance of the steel column 1 and improving the connection strength between the steel column connecting block 43 and the steel column 1, which is further beneficial to improving the overall connection strength at the node.

[0040] Preferably, the thickness of the steel column connection block 43 is greater than the outer end height of the through-connection steel plate 33, and the width of the steel column connection block 43 is greater than the width of the through-connection steel plate 33. In this way, the steel column connection block 43 and the through-connection steel plate 33 can all be connected by fillet welding, which can further simplify the processing technology and reduce the processing difficulty.

[0041] In addition, when the inter-column parts 2 need to be connected in both directions of the steel column 1, the through-connecting parts 3 are respectively arranged through each pair of opposite side walls of the steel column 1, and the heights of the through-connecting parts 3 in different directions are set differently, so that the through-connecting parts 3 in different directions will not form interference in the steel column 1, and can respectively improve the deformation resistance of the steel column 1 in their respective directions, and still will not block the inner cavity of the steel column 1, and will not affect each other during on-site construction.

[0042] The specific implementation of the present utility model is further described below in conjunction with the embodiments.

[0043] Embodiment 1: Figure 1 , Figure 2 and Figure 3 As shown together, the steel column 1 in this embodiment needs to be connected with the column member 2 in both directions, and the through-connection member 3 in one direction adopts a through-connection rod 32, and the through-connection member 3 in the other direction adopts a through-connection steel plate 33, and the two through-connection steel plates 33 corresponding to the same flange connection block 5 are respectively above and below the through-connection rod 32 at corresponding positions, which forms different heights of the through-connection member 3 in different directions. Among them, the number and position arrangement of the through-connection rod 32 can be specifically designed according to the actual connection strength requirements, which is easily obtained by those skilled in the art based on the conventional technical knowledge in this field and will not be repeated here.

[0044] Embodiment 2: Figure 4 , Figure 5 and Figure 6 As shown together, in this embodiment, the steel columns 1 need to be connected with the column members 2 in both directions, and the through-connecting members 3 in both directions use through-connecting steel plates 33, wherein the through-connecting steel plates 33 in one direction are vertically arranged, and the through-connecting steel plates 33 in the other direction are horizontally arranged, and the two horizontally arranged through-connecting steel plates 33 are respectively located above and below the two vertical through-connecting steel plates 33, which also forms different heights of the through-connecting members 3 in different directions.

[0045] Embodiment 3: Figure 7 , Figure 8 and Fig. 9 As shown together, in this embodiment, the steel columns 1 need to be connected with the column members 2 in both directions, and the through-connecting members 3 in both directions use through-connecting steel plates 33. The through-connecting steel plates 33 in both directions are arranged horizontally, and one pair of the through-connecting steel plates 33 is respectively located above and below the other pair of the through-connecting steel plates 33, which also forms different heights of the through-connecting members 3 in different directions.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, such as the through-connecting member 3 adopting more different combinations of through-connecting rods 32 and through-connecting steel plates 33, and the selection of horizontal and vertical postures when adopting through-connecting steel plates 33. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fully bolted connection node between a steel column and a steel beam or a steel connector, arranged between a steel column and a column member connected to the steel column, the column member being a steel beam or a steel connector, characterized in that: It includes through-and-through fixing openings correspondingly arranged on the two side walls opposite to each other of the steel column, a through-and-through connector that passes through the steel column is fixedly welded on the through-and-through fixing opening, and a steel column connection structure is fixedly arranged on the outer end of the through-and-through connector; a flange connection block is fixedly arranged on the inter-column member, and a flange connection bolt that can be threadedly connected to the steel column connection structure is installed on the flange connection block.

2. A fully bolted connection node between a steel column and a steel beam or a steel connector as claimed in claim 1, characterized in that: The through-connecting fixing port is a circular hole, and the through-connecting connector is a through-connecting rod passing through the through-connecting fixing port; the steel column connection structure includes a through-connecting thread arranged on the outer end of the through-connecting rod, a threaded connecting tube is threadedly installed on the through-connecting thread, and the flange connecting bolt is threadedly connected to the threaded connecting tube.

3. A fully bolted connection node between a steel column and a steel beam or a steel connector as claimed in claim 1, characterized in that: The through-connecting fixing opening is a rectangular opening, the through-connecting connector is a through-connecting steel plate passing through the through-connecting fixing opening, the steel column connection structure includes a steel column connecting block fixedly welded between the outer end of the through-connecting steel plate and the steel column, the steel column connecting block is provided with a steel column connecting screw hole for connecting the flange connecting bolts; a flange bolt fastening nut is installed on the flange connecting bolt at a side of the flange connecting block close to the steel column.

4. A fully bolted connection node between a steel column and a steel beam or a steel connector as claimed in claim 3, characterized in that: Two of the penetration connecting steel plates are respectively provided through the steel columns corresponding to each of the flange connecting blocks, and the steel column connecting blocks are fixedly welded between the outer ends of the two penetration connecting steel plates and the steel columns.

5. A fully bolted connection node between a steel column and a steel beam or a steel connector as claimed in claim 3, characterized in that: The thickness of the steel column connection block is greater than the outer end height of the through-connecting steel plate, and the width of the steel column connection block is greater than the width of the through-connecting steel plate.

6. A fully bolted connection node between a steel column and a steel beam or a steel connector as claimed in claim 1, characterized in that: The penetration connectors are respectively arranged through each pair of opposite side walls of the steel column, and the penetration connectors in different directions are arranged at different heights.

7. A fully bolted connection node between a steel column and a steel beam or a steel connector as claimed in claim 1, characterized in that: The steel column connecting structure is respectively provided at the upper flange and lower flange of the steel column corresponding to the column spacer, and the flange connecting blocks are respectively fixedly provided at the upper flange and lower flange of the column spacer, and each flange connecting block is respectively provided with a flange connecting bolt which can be threadedly connected with the corresponding steel column connecting structure.

8. A fully bolted connection node between a steel column and a steel beam or a steel connector as claimed in claim 1, characterized in that: The steel column is fixed with a protruding connecting steel plate extending to the web of the inter-column member, and the protruding connecting steel plate is fixedly connected with the web bolts of the inter-column member.

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