Steel tie rod connecting node

Abstract

The utility model relates to the field of multi-story and high-rise suspension structure buildings, in particular to a steel tie rod connecting node. The internal threads of the connecting sleeve are connected with the two steel pull rods, the connecting sleeve only bears tension, force transmission between the connecting sleeve and the steel pull rods is uniform, and the connecting sleeve is not prone to damage. The connecting joint is further provided with the bearing sleeve connected to the outer side of the connecting sleeve in a threaded mode, compared with a traditional connecting joint, threaded connection enables construction operation to be simpler and more convenient when the bearing sleeve adjusts the elevation, stress of the upper pull rod and the lower pull rod is more uniform during adjustment, and the situation that the steel pull rods and the bearing sleeve are damaged due to stress concentration is avoided. And the annular plate is used for increasing the contact area between the connecting joint and the floor steel beam, so that the bearing reliability is higher.

Description

Technical Field

[0001] The utility model relates to the field of multi-story suspended structure buildings, in particular to a steel tie rod connection node. Background Art

[0002] Steel tie rods have the advantages of strong bearing capacity, high safety, and convenient and quick use, which makes them widely used in some large-span cantilever and complex structure construction projects. Traditional steel tie rods are installed by connecting ear plates. If the diameter of the steel tie rod is large, the thickness of the connecting ear plate is also large, which brings great difficulties to node design, material procurement, processing and installation. In addition, when the steel tie rod is connected to the steel beam, the ear plate is exposed, and the exposed ear plate will be hit or corroded, affecting the safety and aesthetics of the structure.

[0003] The Chinese patent with application number 202222778363.0 discloses a steel tie rod connection node, which connects the steel beam and the tie rod through a steel casing, a locking device and a steel pad to avoid the appearance of thick plates. At the same time, the connection node is hidden at the floor level, and the safety and aesthetics of the structure are improved. The locking device disclosed in the node for the middle floor is used to connect the two tie rods and support the steel beam at the same time. First, the steel beam is supported only by the end face of the locking device in conjunction with the two gaskets 4, which easily leads to stress concentration, and the locking device and the tie rod are unevenly stressed. Second, the locking device is directly connected to the two tie rods through an internal thread, which is difficult to install and adjust the elevation.

[0004] Therefore, in order to meet the needs of practical applications, there is an urgent need in the art for a connection node with a more reasonable design, uniform force, and easy installation. Utility Model Content

[0005] In view of the existing phenomenon, the utility model provides a steel tie rod connection node for a multi-story suspended structure, which at least solves one of the above-mentioned technical problems.

[0006] The first technical solution of the present application is: a steel tie rod connection node, used to connect two steel tie rods in a multi-story suspension structure and support floor steel beams, including: a connecting sleeve with a first internal thread and an external thread, a supporting sleeve with a second internal thread for threaded connection with the external thread, and a ring plate fixedly arranged on the outside of the supporting sleeve and supporting the floor steel beams; the two steel tie rods are threadedly connected to the two ends of the first internal thread.

[0007] Furthermore, a gasket is provided between the ring plate and the floor steel beam.

[0008] Furthermore, a supporting rib for supporting the ring plate is provided between the ring plate and the supporting sleeve.

[0009] Furthermore, the supporting sleeve is connected to the ring plate by welding.

[0010] Furthermore, the outer diameter of the ring plate is at least 200 mm greater than the outer diameter of the connecting sleeve.

[0011] Furthermore, the thickness of the ring plate is 20-60 mm.

[0012] Furthermore, locking pieces for locking and fixing the steel pull rod are provided at both ends of the connecting sleeve.

[0013] Furthermore, the floor steel beam is I-shaped, including an upper plate, a web plate and a lower plate, and the upper end of the connecting sleeve is located between the upper plate and the lower plate.

[0014] Furthermore, a floor slab is cast above the floor steel beam, and a seal is provided between the floor slab and the steel tie rod.

[0015] The installation method of this application includes the following steps:

[0016] S1. Connect the two steel tie rods through a connecting sleeve;

[0017] S2. Assemble the supporting sleeve and the ring plate by welding and put them on the steel tie rod at the lower side;

[0018] S3. Connect the supporting sleeve to the connecting sleeve and adjust until the floor steel beam is at the design elevation.

[0019] The beneficial effects of this application are:

[0020] 1. The internal thread of the connecting sleeve of the present application connects the two steel tie rods. The connecting sleeve only bears tension, and the force transmission between it and the steel tie rod is uniform and not easy to be damaged. The present application is also provided with a supporting sleeve threadedly connected to the outside of the connecting sleeve. Compared with the traditional connection node, the threaded connection can make the construction operation of the supporting sleeve 2 easier when adjusting the elevation, and the force on the upper and lower tie rods is more uniform during adjustment, which will not cause stress concentration and damage to the steel tie rod and the supporting sleeve. The ring plate is used to increase the contact area between the connection node and the floor steel beam, so that the support is more reliable.

[0021] 2. This application also provides preferred implementation schemes of the above scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. The accompanying drawings described below are some embodiments of the utility model, but not all embodiments. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0023] Figure 1 A three-dimensional schematic diagram of an embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the connection of an upper steel tie rod 101, a lower steel tie rod 102, a connecting sleeve 1, a supporting sleeve 2, a ring plate 3, a gasket 4, and a supporting rib 5 according to an embodiment of the present application;

[0025] Figure 3 for Figure 1 A vertical cross-sectional diagram of ;

[0026] Figure 4 for Figure 3 Schematic diagram of the middle section a;

[0027] Figure 5 for Figure 2 Schematic diagram of vertical section.

[0028] Figure numerals: upper steel tie rod 101, lower steel tie rod 102, floor steel beam 200, floor slab 300, connecting sleeve 1, locking piece 11, supporting sleeve 2, second internal thread 21, ring plate 3, gasket 4, supporting rib 5, sealing piece 6. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Some embodiments of the present application provide a steel tie rod connection node for connecting two steel tie rods in a multi-story suspension structure and supporting a floor steel beam 200, comprising: a connecting sleeve 1 provided with a first internal thread and an external thread, a supporting sleeve 2 provided with a second internal thread 21 threadedly connected to the external thread, and a ring plate 3 fixedly arranged on the outside of the supporting sleeve 2 for supporting the floor steel beam 200; two steel tie rods are threadedly connected to both ends of the first internal thread.

[0031] The internal thread of the connecting sleeve 1 connects the two steel tie rods. The connecting sleeve 1 only bears tension, and the force transmission between it and the steel tie rod is uniform and not easy to be damaged. The present application is also provided with a supporting sleeve 2 threadedly connected to the outside of the connecting sleeve 1. Compared with the traditional connection node, the threaded connection can make the construction operation of the supporting sleeve 2 easier when adjusting the elevation, and the force on the upper and lower tie rods is more uniform during adjustment, which will not cause stress concentration and damage to the steel tie rod and the supporting sleeve 2. The ring plate 3 is used to increase the contact area between the connection node and the floor steel beam 200, so that the support is more reliable.

[0032] In some embodiments, a gasket 4 is provided between the ring plate 3 and the floor steel beam 200 to make the force transmitted from the floor steel chain to the steel tie rod more uniform. Usually, the gasket 4 is a rubber pad.

[0033] In some embodiments, a supporting rib 5 for supporting the ring plate 3 is provided between the ring plate 3 and the supporting sleeve 2, so that the force of the ring plate 3 supporting the floor steel beam 200 can be more evenly transmitted to the supporting sleeve 2. Preferably, the supporting rib 5 is welded to the supporting sleeve 2 and the ring plate 3. Preferably, 4-8 supporting ribs 5 are evenly arranged along the circumference of the ring plate 3. The thickness of the supporting rib 5 is calculated and designed based on factors such as the diameter of the steel tie rod and the load of the floor steel beam 200. Empirically, its thickness is 40-80 mm.

[0034] In some embodiments, the supporting sleeve 2 and the ring plate 3 are connected by welding. The connection between the supporting sleeve 2 and the ring plate 3 needs to withstand greater stress. Welding has higher connection strength and is more convenient to construct, which can meet the implementation requirements of this application.

[0035] The design parameters of the ring plate 3 are calculated and designed based on factors such as the diameter of the steel tie rod and the load of the floor steel beam 200. Empirically, the outer diameter of the ring plate 3 is at least 200mm larger than the outer diameter of the connecting sleeve 1, and the thickness of the ring plate 3 is 20-60mm.

[0036] In some embodiments, locking members 11 for locking and fixing the steel tie rods are provided at both ends of the connecting sleeve 1, and the locking members 11 are used to further lock and fix the relative positions of the two steel tie rods in combination with the threaded connection. The locking members 11 can be set as locking nuts.

[0037] In some embodiments, the floor steel beam 200 is an I-shaped structure, including an upper plate, a web plate, and a lower plate 201, and the upper end of the connecting sleeve 1 is higher than the lower plate 201. The connecting sleeve 1 used for threaded connection of two steel tie rods usually has a relatively long length because it must have a threaded section of a certain length. Setting the upper end of the connecting sleeve 1 higher than the lower plate 201 allows the connecting sleeve 1 to be partially accommodated in the floor steel beam 200, thereby increasing the aesthetics and sealing performance.

[0038] In some embodiments, a floor slab 300 is cast above the floor steel beam 200, and a seal 6 is provided between the floor slab 300 and the steel tie rod to prevent the steel tie rod from being corroded or damaged. The seal 6 is usually a rubber cover.

[0039] The present invention provides a method for installing a steel tie rod connection node, comprising the following steps:

[0040] S1, connecting two steel tie rods through a connecting sleeve 1; preferably, S1 also includes using a locking member 11 to lock and fix the steel tie rods;

[0041] S2, welding and assembling the supporting sleeve 2 and the ring plate 3, and passing them on the steel tie rod located at the lower side; preferably, S2 also includes welding and assembling the supporting rib 5; preferably, S2 also includes passing the gasket 4 on the upper side of the ring plate 3;

[0042] S3. Connect the supporting sleeve 2 to the connecting sleeve 1 and adjust until the steel beam of the floor slab 300 is at the designed elevation.

[0043] Specific embodiments of the present application are listed below to further illustrate the technical solution of the present application.

[0044] The specific embodiment of the present application provides a steel tie rod connection node, which is arranged at the floor steel beam 200 of the multi-story suspension structure, and is used to connect two upper steel tie rods 101 and lower steel tie rods 102, and support the floor steel beam 200. The ends of the two steel tie rods are provided with threads.

[0045] This specific embodiment includes a connecting sleeve 1 , a supporting sleeve 2 , a ring plate 3 , a supporting rib 5 , a gasket 4 , a locking member 11 , and a sealing member 6 .

[0046] The connecting sleeve 1 is provided with a first internal thread and an external thread.

[0047] The supporting sleeve 2 is provided with a second internal thread 21, and the supporting sleeve 2, the ring plate 3, and the supporting rib 5 are welded and connected. The outer diameter of the ring plate 3 is 300 mm larger than the outer diameter of the connecting sleeve 1. There are 8 supporting ribs 5 evenly arranged along the circumference of the ring plate 3, and the thickness of the supporting rib 5 is 60 mm.

[0048] The gasket 4 is a rubber gasket 4 and the sealing member 6 is a rubber cover.

[0049] Before installing this embodiment, first install the floor steel beam 200, the floor steel beam 200 is provided with a through hole, a steel beam sleeve is provided in the hole, and the outer diameter of the connecting sleeve 1 is 2mm smaller than the inner diameter of the steel beam sleeve. The floor steel beam 200 is an I-shaped structure, including an upper plate, a web plate and a lower plate 201.

[0050] Installation of this embodiment includes the following steps:

[0051] S1. Using a tower crane to assist, the upper steel tie rod 101 and the lower steel tie rod 102 are threadedly connected to the first internal thread, and locked with a locking member 11, and then the two steel tie rods and the connecting sleeve 1 are inserted into the steel beam sleeve 201; the locking member 11 is specifically a locking nut provided at both ends of the connecting sleeve 1;

[0052] S2, assemble and weld the supporting sleeve 2, the ring plate 3, and the supporting rib 5, and place the gasket 4 on the ring plate 3, and sleeve the welded supporting sleeve 2, the ring plate 3, and the supporting rib 5 on the lower steel tie rod 102;

[0053] S3. Thread the second internal thread 21 into the external thread of the connecting sleeve 1 and rotate and adjust until the steel beam of the floor 300 is at the designed elevation and the upper end of the connecting sleeve 1 is higher than the lower plate 201.

[0054] The contents described above can be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present utility model.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0056] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A steel tie rod connection node, used to connect two steel tie rods in a multi-story suspended structure and support floor steel beams (200), characterized in that: include: A connecting sleeve (1) having a first internal thread and an external thread, a supporting sleeve (2) having a second internal thread (21) for threaded connection with the external thread, and a ring plate (3) fixedly arranged on the outside of the supporting sleeve (2) for supporting the floor steel beam (200); the two steel tie rods are threadedly connected to the two ends of the first internal thread.

2. The steel tie rod connection node according to claim 1, characterized in that: A gasket (4) is provided between the ring plate (3) and the floor steel beam (200).

3. The steel tie rod connection node according to claim 1, characterized in that: A supporting rib (5) for supporting the ring plate (3) is provided between the ring plate (3) and the supporting sleeve (2).

4. The steel tie rod connection node according to claim 3, characterized in that: The thickness of the supporting rib (5) is 40-80 mm.

5. The steel tie rod connection node according to claim 1, characterized in that: The supporting sleeve (2) is connected to the ring plate (3) by welding.

6. The steel tie rod connection node according to claim 1, characterized in that: The outer diameter of the ring plate (3) is at least 200 mm greater than the outer diameter of the connecting sleeve (1).

7. The steel tie rod connection node according to claim 1, characterized in that: The thickness of the ring plate (3) is 20-60 mm.

8. The steel tie rod connection node according to claim 1, characterized in that: Locking pieces (11) for locking and fixing the steel pull rod are provided at both ends of the connecting sleeve (1).

9. The steel tie rod connection node according to claim 1, characterized in that: The floor steel beam (200) is I-shaped and comprises an upper plate, a web plate and a lower plate, and the upper end of the connecting sleeve (1) is located between the upper plate and the lower plate.

10. The steel tie rod connection node according to claim 1, characterized in that: A floor slab (300) is cast above the floor steel beam (200), and a sealing member (6) is provided between the floor slab (300) and the steel tie rod.

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