Node connecting structure of assembly type steel structure

Abstract

The utility model discloses a node connecting structure of an assembly type steel structure, which relates to the technical field of assembly type steel structures and comprises a main body structural member, and a first sleeve member, a second sleeve member, a third sleeve member and a fourth sleeve member which are fixedly connected to the main body structural member, the second sleeve piece is fixedly connected with the first sleeve piece, the outer width of the second sleeve piece is smaller than or equal to the inner width of the first sleeve piece, and the second sleeve piece and the fourth sleeve piece are both fixedly connected with the third sleeve piece. After being connected, the second suite, the fourth suite and the third suite are sequentially arranged along the geometric center of the second suite from inside to outside in an attached mode; according to the node connecting structure of the assembly type steel structure, the second suite and the fourth suite serve as fixing pieces for connecting nodes, loads borne by the first suite and the fourth suite which serve as main supporting pieces of a steel structure beam column and used for connecting and fixing are reduced, and therefore the overall strength of the structure is enhanced, and the construction cost is reduced. And the durability and safety of the connection node are improved.

Description

Technical Field

[0001] The utility model relates to the field of assembled steel structures, in particular to a node connection structure of an assembled steel structure. Background Art

[0002] Conventional prefabricated steel structure beams and columns are usually connected in a socket form. The connection nodes and the connected parts are directly fixed together by bolting or welding. The connected objects usually serve as both the main supporting components of the steel structure beams and columns and as fixing components for connection. As a result, a part of the bearing capacity of the connected beams and columns needs to be allocated for connection and fixing, which reduces the overall supporting performance of the steel structure. Utility Model Content

[0003] The utility model aims to provide a node connection structure of a prefabricated steel structure, so as to solve the problem that when a conventional prefabricated steel structure is sleeved, the connected beams and columns usually serve as both main supporting components and fixing components for connection, and a part of the bearing capacity of the connected beams and columns needs to be allocated for connection and fixing, thereby reducing the overall supporting performance of the steel structure.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A node connection structure of an assembled steel structure comprises: a main structural member, a first set fixedly connected to the main structural member, a second set, a third set and a fourth set, wherein the second set is fixedly connected to the first set and the outer width of the second set is less than or equal to the inner width of the first set, the second set and the fourth set are both fixedly connected to the third set, and after connection, the second set, the fourth set and the third set are sequentially arranged from inside to outside along the geometric center of the second set.

[0006] When conventional prefabricated steel structures are socketed, the connected beams and columns usually serve as both the main supporting components and the fixing components for connection. A portion of the bearing capacity of the connected beams and columns needs to be allocated for connection and fixing, which leads to a reduction in the overall supporting performance of the steel structure. The utility model provides a node connection structure of a prefabricated steel structure, in which the second and fourth kits are respectively used as auxiliary fixing parts of the main supporting parts of the steel structure for socketing, thereby reducing the load borne by the first and fourth kits as the main supporting parts of the steel structure beams and columns for connection and fixing, improving the overall supporting performance of the steel structure, enhancing the overall strength of the structure, and making the connection more durable and safe. At the same time, the second and third kits respectively realize the fixation of the first and fourth kits in both internal and external directions, further improving the stability of the connection.

[0007] Furthermore, the main structural member is fixedly connected with a first crossbeam and a second crossbeam, the first crossbeam and the second crossbeam are centrally symmetrical and the symmetry point is the geometric center of the first kit, the first crossbeam and the second crossbeam are respectively fixedly connected with a first connecting plate, a second connecting plate and a third connecting plate, the third connecting plate includes a first side and a second side, the first connecting plate and the second connecting plate are respectively fixedly connected to the first side and the second side and are in an I-shape after being connected, and the lengths of the first connecting plate, the second connecting plate and the third connecting plate increase sequentially.

[0008] When connecting the crossbeams in the steel structure beams and columns, the conventional method is to directly fix the two crossbeams together by welding or bolting. When the crossbeams connected in this way are subjected to vertical loads, the structural strength of the bolts and welds at the connection is much lower than that of other parts of the beams and columns, and are prone to breakage. By adopting I-beam structural members of different lengths above and below and arranging them in a centrally symmetrical form with the center of the first set of components, each node connection structural member is connected based on the I-beam structural member, and the force at the connection is dispersed to multiple components such as the first connection plate, the second connection plate and the third connection plate, thereby improving the bearing capacity of the connection and making the structure more stable.

[0009] Furthermore, the node connection structure of the prefabricated steel structure also includes a fourth connection plate. There are a plurality of node connection structures of the prefabricated steel structure and the node connection structures of the prefabricated steel structure are fixedly connected via the fourth connection plate.

[0010] The connection of metal parts, including welding, bolt connection and threaded connection, is not formed in one piece, so corresponding measures need to be taken to strengthen the structural strength of the connection. By using the fourth connecting plate as an intermediate member to connect the two beams together, it can help disperse the stress at the connection point, reduce stress concentration, and thus improve the stability and strength of the connection.

[0011] Furthermore, a stiffener is rotatably connected to the side of the third set, and the stiffener is detachably connected to the inner wall of the third set.

[0012] In the process of connecting steel structure beams and columns, by adding stiffening ribs or stiffening columns, the structure can be helped to bear greater loads while reducing the deflection and deformation of the structure. The conventional method of connecting stiffeners usually requires the stiffeners to be placed in the designated position by manual or hoisting methods. Then the connection is made. The above method has the problems of inconvenient manual transportation and low safety. At the same time, the placement and positioning of the stiffeners also requires manual judgment, which will cause the problem of reduced stiffener effect due to inaccurate positioning. By using the stiffeners with preset rotational connections on the third kit, when not in use, the stiffeners are located inside the kit, which is convenient for storage and transportation. When sleeved, the stiffeners are rotated to the connection state, and bolts or welding only need to be connected, so that the stiffeners do not need to be manually carried or additionally hoisted, which is convenient and safe while also improving the positioning accuracy of the stiffeners during installation.

[0013] Furthermore, the node connection structure of the prefabricated steel structure also includes a guiding member, which includes a guiding bar and a slide groove fixedly connected to the third kit, and the guiding bar is slidably connected to the slide groove.

[0014] When hoisting and connecting steel structure beams and columns, the connection nodes need to be inserted into the steel structure beams and columns. However, the hoisting process is usually accompanied by the shaking of the structural parts, making it difficult to align the structural parts to be sleeved. The guide strips are used to provide auxiliary guidance and positioning for the connection of the components.

[0015] Furthermore, the guide member also includes a limiting member fixedly connected to the slide groove, and the limiting member is used to limit the sliding of the guide bar in the slide groove.

[0016] The guide frame is slidably connected to the slide groove. When they are socketed, there is a situation where the guide component slides into the second kit before the structural member approaches the guide component. By setting a limiter, it is avoided that the guide component slides into the kit before providing a guiding function, resulting in the failure of the auxiliary guiding function.

[0017] Furthermore, there are a plurality of guide components.

[0018] By providing a plurality of guiding components, it is possible to provide guiding functions in multiple directions for the structural members to be connected, thereby improving the guiding effect.

[0019] Furthermore, the length of the guide bar is less than or equal to the length of the slide groove.

[0020] To ensure that the guiding function can take effect normally, the guide bar has a certain thickness. By setting the length of the guide bar to be less than or equal to the length of the slide groove, the guide bar can be stored in the slide groove after completing the guiding function, avoiding the guide bar being stuck at the end faces of the two connecting parts during connection, affecting the connection effect.

[0021] Furthermore, the inner width and thickness of the fourth set are respectively the same as the inner width and thickness of the first set.

[0022] The fourth kit and the first kit are the main supporting parts in the steel structure and are also the main functional bodies of the connection structure. The first kit needs to provide support for the fourth kit in the vertical direction and the fourth kit also provides support for other kits in the vertical direction. If the shapes and sizes of the end faces of the first kit and the fourth kit are inconsistent, it will cause uneven force at the connection, and some column ends will be subject to greater force, which may cause uneven deformation and insufficient bearing capacity. By setting the end faces of the first kit and the fourth kit to be consistent, deformation of the two due to uneven force can be avoided.

[0023] Furthermore, the fixed connection is a bolt connection, and the bolts of the bolt connection are one-way bolts.

[0024] By using one-way bolts for fixed connection, it is possible to make the node connection structure not require too much space for twisting the bolts when installing, which makes it suitable for occasions where the space is small or special angle installation is required; at the same time, the one-way bolt only needs to be tightened on one side during installation, and the other side can be supported by the already fixed structural parts, making the operation simpler and more efficient; the bolt connection is also easy to disassemble, providing conditions for the reusability of the node connection structure.

[0025] One or more technical solutions provided by the utility model have at least the following technical effects or advantages:

[0026] (1) The utility model provides a node connection structure of an assembled steel structure, in which the second set and the fourth set are respectively used as auxiliary fixing members of the main support members of the steel structure to be connected, thereby reducing the load borne by the first set and the fourth set as the main support members of the steel structure beams and columns for connection and fixing, improving the overall support performance of the steel structure, enhancing the overall strength of the structure, and thus making the connection more durable and safe. At the same time, the second and third sets respectively fix the first and fourth sets in two positions, inside and outside, further improving the stability of the connection;

[0027] (2) The node connection structure of the assembled steel structure provided by the utility model adopts a stiffener with a preset rotation connection on the third kit. When not in use, the stiffener is built into the kit for easy storage and transportation. When sleeved, the stiffener is rotated to a connected state, and bolts or welding only need to be connected, so that the stiffener does not need to be manually carried or additionally hoisted, which is convenient and safe, and also improves the positioning accuracy of the stiffener during installation;

[0028] (3) The utility model provides a node connection structure of a prefabricated steel structure, which uses guide bars to provide auxiliary guidance and positioning for the connection of various components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of the present utility model, and do not constitute a limitation on the embodiments of the present utility model;

[0030] Figure 1 It is a schematic diagram of the node connection structure of the assembled steel structure in the utility model;

[0031] Figure 2 It is a structural schematic diagram of the third set of components including the guide member of the utility model;

[0032] Figure 3 This utility model Figure 2 A partial enlarged view of the middle A;

[0033] Figure 4 It is a structural schematic diagram of the third set of the present invention in which the stiffener is in a stored state;

[0034] Figure 5 It is a structural schematic diagram of the third set of stiffeners in the utility model in a use state;

[0035] Among them, 1-main structural member, 2-first kit, 3-second kit, 4-third kit, 5-fourth kit, 6-first crossbeam, 601-first connecting plate, 602-second connecting plate, 603-third connecting plate, 604-fourth connecting plate, 630-first side, 631-second side, 7-second crossbeam, 8-stiffener, 9-guide member, 901-guide strip, 902-slide groove, 903-limiting member. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those within the scope of this description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0038] Embodiment 1

[0039] Please refer to Figure 1, a node connection structure of an assembled steel structure provided by an embodiment of the utility model comprises: a main structure member 1, a first set 2, a second set 3, a third set 4 and a fourth set 5 fixedly connected to the main structure member 1, the first set 2, the second set 3, the third set 4 and the fourth set 5 can be rectangular tubes or round tubes and the materials are not limited to stainless steel, alloy steel and carbon steel. The node connection structure of the assembled steel structure described in the utility model is also applicable to the frame structure connection node of non-metallic materials such as plastics or synthetic resins. The second set 3 is fixedly connected to the first set 2 and the outer width of the second set 3 is less than or equal to the inner width of the first set 2 to ensure that the second set 3 can be embedded in the first set 2. The second set 3 and the fourth set 5 can be fixed in the first set 2. The kits 5 are all fixedly connected to the third kit 4. After the connection, the second kit 3, the fourth kit 5 and the third kit 4 are sequentially arranged along the geometric center of the second kit 3 from the inside to the position and fit. The fourth kit can be a kit connected in the node connection structure described in the utility model, or it can be a separate rectangular steel pipe or circular steel pipe. By using the second kit 3 and the third kit 4 as auxiliary fixing parts of the main support parts of the steel structure for socketing, the loads borne by the first kit 2 and the fourth kit 5 as the main support parts of the steel structure beams and columns for connection and fixing are reduced, the overall supporting performance of the steel structure is improved, and the overall strength of the structure is enhanced. The kits in the node connection structure of the assembled steel structure described in the utility model include two groups and are symmetrically distributed, as shown in the following example. Figure 1 Each set of kits includes a second kit 3, a third kit 4 and a fourth kit 5, and the two sets of kits are symmetrically distributed on the horizontal plane where the geometric center of the first kit 2 is located, wherein the inner width and thickness of the fourth kit 5 are respectively the same as the inner width and thickness of the first kit 2, that is, the fourth kit 5 and the first kit 2 are circular or rectangular steel structure tubes with the same cross-section, and the fourth kit and the first kit are the main supporting parts in the steel structure and the main functional bodies of the connection structure. By setting the end faces of the first kit and the second kit to be consistent, deformation of the two due to uneven force is avoided; after the connection is completed, the kits are arranged in a nested structure, and the two adjacent kits in the nested structure fit together. To ensure that there is no gap between the kits after connection and enhance the stability of the node after connection, the fixed connection can be welding or bolt connection. Preferably, the fixed connection is a bolt connection, and the bolt of the bolt connection is a one-way bolt. By using a one-way bolt for fixed connection, it is possible to make the node connection structure not require too much space for twisting the bolt when installing, so that it is suitable for some occasions where the space is small or special angle installation is required; at the same time, the one-way bolt only needs to be tightened on one side during installation, and the other side can provide support through the already fixed structural parts, making the operation simpler and more efficient; the bolt connection is also easy to disassemble, providing conditions for the reusable node connection structure.

[0040] The assembled steel structure described in the utility model has a number of node connection structures, the main structure 1 is fixedly connected with a first beam 6 and a second beam 7, the first beam 6 and the second beam 7 are centrally symmetrical and the symmetry point is the geometric center of the first set 2, the materials of the first beam 6 and the second beam 7 include but are not limited to stainless steel, alloy steel, carbon steel and plastic, when two adjacent nodes are connected, the first beam 6 of the first node connection structure is connected to the second beam 7 of the second node connection structure, or the second beam 7 of the first node connection structure is connected to the first beam 6 of the second node connection structure, the first beam 6 and the second beam 7 are each fixedly connected with a first connecting plate 601, a second connecting plate 602 and a third connecting plate 603, the third connecting plate 603 includes a first side 630 and a second side 631, the first connecting plate 601 and the second connecting plate 602 are respectively fixedly connected to the first side 630 and the second side 631 and after connection are as follows Figure 1 In the I-shaped structure shown in the figure, the length of the first connecting plate 601, the length of the second connecting plate 602 and the length of the third connecting plate 603 are increased in sequence, forming a cross beam connection structure as a whole, and the I-shaped steel structure members of different lengths are used for connection, so that the force at the connection is dispersed to multiple components such as the first connecting plate 601, the second connecting plate 602 and the third connecting plate 603, thereby improving the bearing capacity of the connection and making the structure more stable; as a preferred embodiment, the node connection structure of the assembled steel structure further includes a fourth connecting plate 604 and the node connection structure of each assembled steel structure The structures are fixedly connected by the fourth connecting plate 604. The fourth connecting plates 604 are in a plurality. When connected, exemplarily, the first connecting plate 601, the second connecting plate 602 and the third connecting plate (603) of the first node connection structure are connected to the second connecting plate 602, the first connecting plate 601 and the third connecting plate 603 of the second node connection structure by bolts based on the fourth connecting plate 604, respectively. The fourth connecting plate is used as an intermediate member to connect the two beams together, which can help disperse the stress at the connection part and reduce stress concentration, thereby improving the stability and strength of the connection.

[0041] Embodiment 2

[0042] Please refer to Figure 2-Figure 5 The utility model provides a node connection structure of a prefabricated steel structure based on the first embodiment. The node connection structure of the prefabricated steel structure also includes a stiffener 8 and a guide member 9.

[0043] The third set 4 is rotatably connected to the side with a stiffener 8, and the rotatable connection can be a hinge connection or a pin connection. The stiffener 8 is detachably connected to the inner wall of the third set 4, and the detachable connection can be a snap connection or a ring connection; the stiffener 8 can be a stiffening column or a stiffening rib plate, for example, Figure 4 and Figure 5 The stiffener 8 is an equilateral triangular prism structure, and one edge of the stiffener 8 is connected to a bottom side of the third set 4 by a hinge. When the stiffener is in the storage state, Figure 4 As shown, the stiffener 8 is built into the third set 4 and the side of the stiffener 8 is attached to the inner wall of the third set 4. The stiffener 8 is connected to the third set 4 by a buckle or a hanging ring, which is convenient for storage and transportation. When the stiffener 8 is in use, as shown in FIG. Figure 5 As shown, after the stiffener 8 is rotated, the side surface is fitted with the outer surface of the third kit 4, and while the steel structure beams and columns are connected, the third kit 4, the stiffener and the steel structure beam are fixed together by welding or bolting to achieve a stiffening effect. Stiffeners 8 can be installed on each side of the third kit 4 so that the connection nodes and beams in multiple extension directions can be stiffened according to actual installation and connection requirements. Through the above design, the stiffener 8 does not need to be manually carried or additionally hoisted during installation, which is convenient and safe while also improving the positioning accuracy of the stiffener during installation.

[0044] The guide member 9 includes a guide bar 901 and a slide groove 902 fixedly connected to the third set 4, the fixed connection can be welding or bonding, the guide bar 901 is slidably connected to the slide groove 902, the sliding connection can be a sliding pair connection or a slide rail slider connection, and the guide bar can be a metal or plastic strip with a certain thickness and the thickness does not exceed the depth of the slide groove; when installing, the fourth set 5 is hoisted above the third set 4, and the fourth set 5 contacts with the guide bar 9 during the lowering process and the contact portion slides downward along the guide bar 9. Preferably, there are several guide members 9, and a plurality of guide strips are combined to form a trumpet shape, which guides the fourth kit to be lowered from multiple directions and finally enters the interior of the third kit to achieve a guiding alignment effect. By setting up a plurality of guide members 9, a guiding effect in multiple directions can be provided for the connected structural parts, thereby improving the guiding effect. The guide member 9 can be set on the first kit 2 to guide the second kit 3. At the same time, the guide member 9 can also be set below the third kit 4 to guide the third kit 4 to be inserted into the second kit 3.

[0045] Preferably, a limiting member 903 is fixedly installed in the slide groove 902 of the guide member 9, and the limiting member 903 is used to limit the sliding of the guide bar 901 in the slide groove 902. The limiting member 903 can be a pin or a baffle. By setting the limiting member 903, it is possible to avoid the guide member 9 sliding into the inside of the kit before providing a guiding function, resulting in the failure of the auxiliary guiding function. The length of the limiting member 903 is slightly longer than the groove depth of the slide groove 903, and the length of the guide bar 9 is less than or equal to the length of the slide groove 902. After the fourth kit 5 to be installed enters the third kit 4, the fourth kit 5 cuts off the pin or baffle under the action of gravity acceleration, and the guide bar 9 falls along the slide groove to the inside of the kit. While completing the guiding function, it avoids the guide bar 9 from being stuck at the end faces of the two connecting parts, affecting the connection effect between the kits.

[0046] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A node connection structure of an assembled steel structure, characterized in that: include: A main structure (1), a first set (2) fixedly connected to the main structure (1), a second set (3), a third set (4) and a fourth set (5), wherein the second set (3) is fixedly connected to the first set (2) and the outer width of the second set (3) is less than or equal to the inner width of the first set (2), and the second set (3) and the fourth set (5) are both fixedly connected to the third set (4); after connection, the second set (3), the fourth set (5) and the third set (4) are sequentially arranged along the geometric center of the second set (3) from the inside to the outside.

2. The node connection structure of a prefabricated steel structure according to claim 1, characterized in that: The main structure (1) is fixedly connected with a first crossbeam (6) and a second crossbeam (7), the first crossbeam (6) and the second crossbeam (7) are centrally symmetrical and the symmetry point is the geometric center of the first set (2), the first crossbeam (6) and the second crossbeam (7) are respectively fixedly connected with a first connecting plate (601), a second connecting plate (602) and a third connecting plate (603), the third connecting plate (603) comprises a first side edge (630) and a second side edge (631), the first connecting plate (601) and the second connecting plate (602) are respectively fixedly connected with the first side edge (630) and the second side edge (631) and are in an I-shape after being connected, and the length of the first connecting plate (601), the length of the second connecting plate (602) and the length of the third connecting plate (603) increase in sequence.

3. The node connection structure of a prefabricated steel structure according to claim 2, characterized in that: The node connection structure of the prefabricated steel structure further includes a fourth connection plate (604). There are a plurality of node connection structures of the prefabricated steel structure and the node connection structures of the prefabricated steel structure are fixedly connected via the fourth connection plate (604).

4. The node connection structure of a prefabricated steel structure according to claim 1, characterized in that: The third set (4) is rotatably connected to a side edge with a stiffening member (8), and the stiffening member (8) is detachably connected to the inner wall of the third set (4).

5. The node connection structure of a prefabricated steel structure according to claim 1, characterized in that: The node connection structure of the assembled steel structure also includes a guide member (9), the guide member (9) includes a guide bar (901) and a slide groove (902) fixedly connected to the third kit (4), and the guide bar (901) is slidably connected to the slide groove (902).

6. The node connection structure of a prefabricated steel structure according to claim 5, characterized in that: The guiding member (9) further comprises a limiting member (903) fixedly connected to the sliding groove (902), wherein the limiting member (903) is used to limit the sliding of the guiding strip (901) in the sliding groove (902).

7. The node connection structure of a prefabricated steel structure according to claim 5, characterized in that: The guiding components (9) are provided in a plurality of numbers.

8. The node connection structure of a prefabricated steel structure according to claim 5, characterized in that: The length of the guide bar (901) is less than or equal to the length of the slide groove (902).

9. The node connection structure of a prefabricated steel structure according to claim 1, characterized in that: The inner width and thickness of the fourth set (5) are respectively the same as the inner width and thickness of the first set (2).

10. The node connection structure of a prefabricated steel structure according to claim 1, characterized in that: The fixed connection is a bolt connection, and the bolts of the bolt connection are one-way bolts.

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