Connecting device of steel structure web

Abstract

The utility model discloses a steel structure web connecting device in the technical field of steel structures, which comprises a locking box, a limit sleeve, locking rods and a connecting plate, the limit sleeve is sleeved outside the locking rods in a sliding manner, the locking rods penetrate through the connecting plate and are locked in locking holes of the locking box, each locking rod is locked in each locking hole through threads, and the locking rods are connected with the connecting plate through threads. The locking box, the limiting sleeve and the connecting plate are locked on the two sides of the H-shaped steel web through the locking rods, the multiple locking rods are locked through the whole locking box, the locking rods are clamped through the limiting sleeve, rotation of the locking rods is avoided, and therefore the whole locking rods are locked and clamped in the locking box; and the locking box is filled with concrete, rotation of the limiting rib of the T-shaped structure is limited after the concrete is solidified, and even if large vibration is encountered in the long-term use process, the locking rod can be effectively prevented from rotating and loosening, so that the connection firmness of the steel structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structures, in particular to a connecting device for steel structure webs. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. Steel is characterized by high strength, light weight, good overall rigidity, and strong resistance to deformation, so it is particularly suitable for building large-span, super-high, and super-heavy buildings.

[0003] The conventional connection method for steel structure construction is generally to divide the entire building structure into several small pieces for prefabrication, and then connect the several small prefabricated pieces through connectors. For example, the existing H-shaped steel structure includes a main body with an "I"-shaped cross section, two H-shaped steels distributed along the length of the main body, and the two H-shaped steels are butt-jointed together. The H-shaped steel consists of two wing plates and a web located between the two wing plates. The webs of the two spliced ​​H-shaped steels are aligned and spliced, and one side of the H-shaped steel web is abutted and connected and locked through the same flat connecting plate, so that the connecting plate connects the splicing seams of the two H-shaped steels into an integral structure, and the connecting plate is fixed to the two webs by multiple high-strength bolts.

[0004] H-shaped steel structures are usually clamped on both sides of the H-shaped steel web by connecting steel plates. Some are connected on only one side, and then bolts are passed through the web and connecting steel plates of the H-shaped steel to lock the two spliced ​​H-shaped steels.

[0005] Although the connection method of H-steel connecting plate plus bolts is simple and quick, the connecting plate connects the two webs by the pre-tightening force generated by tightening the bolts. However, after a period of time, when encountering stronger vibrations, the connecting bolts are prone to loosening, resulting in a decrease in the above-mentioned pre-tightening force, threatening the stability of the entire steel structure and posing a major safety hazard.

[0006] Based on this, the utility model designs a connection device for the web of a steel structure to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a connection device for the web of a steel structure, which locks a plurality of locking rods through an integral locking box, and clamps the locking rods through a limiting sleeve to prevent the locking rods from rotating, thereby locking and clamping the entire locking rods in the locking box, and filling the locking box with concrete, and after the concrete is solidified, limiting the rotation of the limiting ribs of the T-shaped structure, thereby preventing the limiting sleeve from rotating, and further maintaining a locking state between the locking rod and the locking box that cannot rotate, even if encountering large vibrations during long-term use, the locking rods can be effectively prevented from rotating and loosening, thereby ensuring the firmness of the connection of the steel structure.

[0008] The utility model is implemented as follows: a connecting device for a steel structure web, comprising:

[0009] Lock box, limit sleeve, lock rod and connecting plate;

[0010] The lock box is a box with an inner opening, and a plurality of lock holes are provided on the outer plate of the lock box, and the plurality of lock holes are distributed in a rectangular array, and each of the lock holes penetrates both the inner and outer sides of the lock box, and a grouting port and an exhaust port are also provided on the lock box, and the grouting port and the exhaust port are connected to both the inner and outer sides of the lock box;

[0011] The locking rod is a screw rod, and a limiting groove is provided on the outer wall of the locking rod, which is recessed inwards and parallel to the axis of the locking rod;

[0012] The limiting sleeve is a circular ring structure, and a plurality of limiting ribs are evenly arranged on the outside of the limiting sleeve. The limiting ribs are T-shaped bars, and each of the limiting ribs is vertically connected to the outer wall of the limiting sleeve, and the cross bar of each limiting rib is parallel to the axis of the limiting sleeve;

[0013] A guide protrusion is also provided inwardly inside the limiting sleeve, and the guide protrusion is slidably nested in the limiting groove without rotation, and the limiting sleeve is slidably sleeved on the outside of the locking rod;

[0014] The connecting plate is a flat plate, and a plurality of positioning holes are provided on the connecting plate in a rectangular array, and each positioning hole corresponds to a locking hole position one by one;

[0015] The locking rod passes through the connecting plate and is locked in the locking hole of the locking box, and a locking rod is screwed in each of the locking holes.

[0016] Furthermore, the grouting port is transversely opened on the outer side wall of the lock box, and the exhaust port is opened on the top of the lock box;

[0017] The vertical height of the lock box is less than the height d of the steel structure web.

[0018] Furthermore, the groove depth of the limiting groove does not exceed one quarter of the diameter of the locking rod.

[0019] Furthermore, the spacing angles between adjacent limiting ribs on the limiting sleeve are the same, the vertical rods of each limiting rib on the limiting sleeve are on the same plane, the vertical rod lengths s of each limiting rib are the same, and the horizontal rods of the limiting ribs are circularly surrounded by the periphery of the limiting sleeve;

[0020] The length of the cross bar of the limiting rib is less than the depth of the inner groove of the lock box, and the difference does not exceed 1mm.

[0021] The beneficial effects of the utility model are as follows: 1. The utility model forms a key locking structure by clamping the guide protrusion and the limit groove, so that the limit sleeve cannot rotate relative to the locking rod after being assembled with the locking rod, and can only slide along the locking rod, thereby avoiding twisting and loosening between the locking rod and the limit sleeve, and the limit sleeve is locked in the locking box by concrete, so that the locking rod cannot twist in the locking box, ensuring that the thread between the locking rod and the locking hole remains in a locked state, ensuring that the connecting plate and the locking box remain connected and locked with the H-shaped steel;

[0022] 2. This device has added grouting holes, which can fill the inner side of the lock box that is fitted and locked on the web of the steel structure with concrete slurry, and the cross bar of the limiting rib is clamped in the outer side of the limiting sleeve in a circular state. After the concrete and the limiting rib are solidified to form an integral structure, the limiting rib is stuck and cannot rotate around the limiting sleeve, and the left and right sides of the cross bar of the limiting rib are clamped with the inner side of the lock box and the web of the H-shaped steel, so that the entire limiting sleeve can neither slide left and right nor rotate in a circle through multiple limiting ribs, thereby effectively keeping the position of the limiting sleeve stable, thereby limiting the position of the locking rod;

[0023] 3. The multiple locking rods of the device are simultaneously locked on the same locking box through threads, and the multiple locking rods are locked in a locking hole one by one, and through thread locking, the locking rods are restricted in rotation and position by the limit sleeve, and the locking box is also locked by the multiple locking rods and cannot rotate, so that the locking box and the locking rods can remain stable on both sides of the H-shaped steel, and a connecting plate is also provided on the other side of the H-shaped steel web. The locking rod passes through the positioning hole of the connecting plate, which not only plays a locking role, but also plays a role in increasing the strength of the H-shaped steel web. The locking is stable and the structural strength is high, which can effectively avoid sliding and loosening, so that the connection between the two H-shaped steels is stable, and concrete is injected into the locking box to further increase the strength of the steel structure joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the side locking state of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the lock box structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the limit sleeve of the utility model;

[0028] Figure 4 This is a schematic diagram of the front structure of the limit sleeve of the utility model;

[0029] Figure 5This is a front structural diagram of one side of a connecting plate of two H-shaped steels spliced ​​together in the utility model;

[0030] Figure 6 This is a schematic diagram of the lock rod structure of the utility model.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1-locking box, 11-locking hole, 12-grouting port, 13-exhaust port, 2-limiting sleeve, 21-limiting rib, 22-guide protrusion, 3-locking rod, 31-limiting groove, 4-connecting plate, 41-positioning hole. DETAILED DESCRIPTION

[0033] See also Figures 1 to 6 As shown, the utility model provides a connection device for the web of a steel structure. In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings in the specification and specific implementation methods.

[0034] In a specific embodiment of the technical solution of the utility model:

[0035] It includes a lock box 1, a limit sleeve 2, a lock rod 3 and a connecting plate 4;

[0036] The lock box 1 is a box with an inner opening. A plurality of lock holes 11 are provided on the outer flat plate of the lock box 1. The plurality of lock holes 11 are distributed in a rectangular array, and each lock hole 11 penetrates both inner and outer sides of the lock box 1. A grouting port 12 and an exhaust port 13 are also provided on the lock box 1. The grouting port 12 and the exhaust port 13 are connected to both inner and outer sides of the lock box 1. The grouting port 12 is transversely provided on the outer side wall of the lock box 1, and the exhaust port 13 is provided on the top of the lock box 1.

[0037] The vertical height of the lock box 1 is less than the height d of the steel structure web, ensuring that the inner side of the entire lock box 1 can fit flatly with the steel structure web without being blocked, thereby making the integrity stronger and facilitating the pouring of concrete slurry into the lock box 1 without leakage.

[0038] The locking rod 3 is a screw rod, and a limiting groove 31 is recessed inwardly on the outer wall of the locking rod 3, and the limiting groove 31 is parallel to the axis of the locking rod 3; the groove depth of the limiting groove 31 does not exceed one-fourth of the diameter of the locking rod 3, which can limit the rotation of the locking rod 3 and ensure that the strength of the locking rod 3 is not affected, thereby ensuring the locking firmness of the bolt, and the limiting groove 31 is recessed inwardly and does not affect the external threaded connection of the locking rod 3.

[0039] The limiting sleeve 2 is a circular ring structure, and a plurality of limiting ribs 21 are evenly arranged on the outside of the limiting sleeve 2. The limiting ribs 21 are T-shaped rods, and the vertical straight rods of each limiting rib 21 are fixedly connected to the outer wall of the limiting sleeve 2, and the crossbar of each limiting rib 21 is parallel to the axis of the limiting sleeve 2; the interval angles between adjacent limiting ribs 21 on the limiting sleeve 2 are the same, and the vertical rods of each limiting rib 21 on the limiting sleeve 2 are on the same plane, and the vertical rod length s of each limiting rib 21 is the same. The crossbars of the limiting ribs 21 are circularly surrounded by the periphery of the limiting sleeve 2, and the angle intervals are the same, so that the limiting ribs 21 outside the entire limiting sleeve 2 can be evenly stressed, not prone to deflection, and have a stable structure;

[0040] The length of the cross bar of the limiting rib 21 is less than the depth of the inner groove of the lock box 1, and the difference does not exceed 1mm. In this way, the length of the cross bar of the limiting rib 21 limits the left and right sliding of the limiting rib 21, so that it can maintain a stable position in the lock box 1, and can neither rotate nor slide.

[0041] A guide protrusion 22 is also provided inside the limiting sleeve 2, and the guide protrusion 22 is nested and slidably arranged in the limiting groove 31 without rotation, and the limiting sleeve 2 is slidably arranged outside the locking rod 3;

[0042] The connecting plate 4 is a flat plate, and a plurality of positioning holes 41 are provided in a rectangular array on the connecting plate 4, and each positioning hole 41 corresponds to a locking hole 11 one by one;

[0043] The locking rod 3 passes through the connecting plate 4 and is locked in the locking hole 11 of the locking box 1. A locking rod 3 is screwed in each locking hole 11.

[0044] It should be noted that:

[0045] 1. The limiting groove 31 on the locking rod 3 is a long groove, and is recessed into the inside of the screw and is opened on the outer wall of the screw, while the inner hole of the limiting sleeve 2 protrudes a guide protrusion 22 inward, and the guide protrusion 22 cooperates with the limiting groove 31 to form a transmission key structure, thereby limiting the rotation between the locking rod 3 and the guide protrusion 22, so that the limiting sleeve 2 can only slide along the locking rod 3. Such a transmission limiting structure only needs to control the rotation of the limiting sleeve 2 to keep the locking rod 3 stably locked; 2. The device adds a limiting rib 21, and The limiting rib 21 has a horizontal bar and a vertical bar, the vertical bar is directly connected to the outer wall of the limiting sleeve 2, and the horizontal bar of the limiting rib 21 is parallel to the axis of the limiting sleeve 3 and the locking rod 3. As long as the axial rotation of the horizontal bar of the limiting rib 21 is limited, the rotation of the limiting sleeve 2 is limited, so that the limiting sleeve 2 remains stable and cannot rotate in the locking box 1. The horizontal bar of the limiting rib 21 can not only limit the axial rotation, but also the left and right sides of the horizontal bar of the limiting rib 21 are blocked by the locking box 1 and the steel structure web, so that the sliding of the limiting rib 21 in the left and right directions is also limited. Therefore, as long as When concrete is injected into the lock box 1, the position of the limiting rib 21 is completely locked, and the resistance is very large. The horizontal rod of the limiting rib 21 forms an anchoring effect, and the vertical rod of the limiting rib 21 plays the role of connecting the limiting sleeve 2, so that the limiting rib 21 forms a satellite around the outside of the limiting sleeve 2 to perform limiting and positioning functions; 3. The stability of the limiting sleeve 2 is that the locking rod 3 is stably locked, the locking rod 3 does not rotate in the lock box 1, and the multiple locking holes 11 on the lock box 1 are locked with the locking rod 3, and the locking rod 3 and the lock box 1 are both stable. , the entire connection structure remains stable. The lock box 1 is an integral steel box, which cannot rotate after being locked on the H-shaped steel. Therefore, the device maintains a stable connection between the two spliced ​​steel structures by stabilizing the lock box 1 and the lock rod 3, and stabilizing the lock rod 3 through a rigid mechanical key connection. The overall strength of the connection is also enhanced by the connecting plate 4 and the positioning holes 41 opened thereon, so that the steel structure connection relationship will not loosen, the bolts cannot be twisted loose, and vibration will no longer cause the steel structure to loosen.

[0046] When the utility model is in use, two H-shaped steels are spliced ​​together, and then a connecting plate 4 is arranged on one side of the web at the splicing of the H-shaped steel. The connecting plate 4 is a commonly used device for connecting steel structures, that is, a steel plate with a plurality of positioning holes 41 formed thereon. The positioning holes 41 are through holes, and are specified to have different thicknesses and sizes according to the size of the steel structure. The size of the positioning holes 41 is opened according to the specifications of the bolts used as needed, and the bolts used need to be selected according to the steel structure specifications.

[0047] The difference between the locking rod 3 of the present device and the commonly used screw is the limiting groove 31. The locking rod 3 of the present device is a groove formed on the screw of the selected bolt, and the limiting groove 31 is a long groove that penetrates the entire screw, and the limiting sleeve 2 needs to match the size of the locking rod 3. The inner hole of the limiting sleeve 2 needs to be the same size as the locking rod 3, and the best is a clearance match, and the clearance does not exceed 0.1mm. The inner hole of the limiting sleeve 2 is a smooth through hole, and the positioning hole 41 is also a smooth through hole. After the locking rod 3 penetrates the connecting plate 4 and passes through the steel structure web, the screw end of the locking rod 3 extends out of the other side of the web, that is, Figure 1 The left side of the locking rod 3 is then inserted into the limiting sleeve 2 at the left end of each locking rod 3, and then the locking box 1 is aligned on the locking rod 3, and the locking rod 3 is turned. The locking rod 3 is a hexagonal bolt. The locking rod 3 is rotated to lock the locking rod 3 with each locking hole 11 through threads. At this time, the inner side of the locking box 1 is tightly fitted with the web of the steel structure, and a closed cavity is formed between the web and the locking box 1.

[0048] All the limiting sleeves 2 are clamped between the locking box 1 and the web of the steel structure, and then concrete slurry is injected into the locking box 1 through the grouting port 12, and the gas in the locking box 1 is discharged from the exhaust port 13 until the concrete slurry overflows from the exhaust port 13. In this way, it can be determined that the locking box 1 is full of concrete. After the concrete solidifies, the limiting ribs 21 of the limiting sleeve 2 are clamped in the concrete, and the limiting sleeve 2 cannot rotate. Even if a cold joint is formed between the concrete and the limiting sleeve 2, the limiting ribs 21 will not allow the limiting sleeve 2 to rotate, and the locking rod 3 is limited to rotate by the guide protrusion 22. Similarly, the locking box 1 cannot rotate, and the locking rod 3 and the locking box 1 can only maintain a fixed shape. The concrete in the locking box 1 can also enhance the overall strength of the steel structure.

[0049] In addition, in the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A connection device for a steel structure web, characterized in that: include: A locking box (1), a limiting sleeve (2), a locking rod (3) and a connecting plate (4); The lock box (1) is a box with an inner opening, and a plurality of lock holes (11) are provided on the outer plate of the lock box (1), the plurality of lock holes (11) are distributed in a rectangular array, and each of the lock holes (11) penetrates both the inner and outer sides of the lock box (1), and a grouting port (12) and an exhaust port (13) are also provided on the lock box (1), and the grouting port (12) and the exhaust port (13) are connected to both the inner and outer sides of the lock box (1); The locking rod (3) is a screw rod, and a limiting groove (31) is provided on the outer wall of the locking rod (3) inwardly concavely, and the limiting groove (31) is parallel to the axis of the locking rod (3); The limiting sleeve (2) is a circular ring structure, and a plurality of limiting ribs (21) are evenly arranged on the outside of the limiting sleeve (2), and the limiting ribs (21) are T-shaped rods. The vertical straight rod of each limiting rib (21) is fixedly connected to the outer wall of the limiting sleeve (2), and the cross bar of each limiting rib (21) is parallel to the axis of the limiting sleeve (2); A guide protrusion (22) is also provided inwardly inside the limiting sleeve (2), and the guide protrusion (22) is slidably nested in the limiting groove (31) without rotation, and the limiting sleeve (2) is slidably sleeved on the outside of the locking rod (3); The connecting plate (4) is a flat plate, and a plurality of positioning holes (41) are provided on the connecting plate (4) in a rectangular array, and each positioning hole (41) corresponds to a locking hole (11) in a one-to-one manner; The locking rod (3) passes through the connecting plate (4) and is locked in the locking hole (11) of the locking box (1), and a locking rod (3) is screw-locked in each of the locking holes (11).

2. A connection device for a steel structure web according to claim 1, characterized in that: The grouting port (12) is transversely opened on the outer side wall of the lock box (1), and the exhaust port (13) is opened on the top of the lock box (1); The vertical height of the lock box (1) is less than the height d of the steel structure web.

3. A connection device for a steel structure web according to claim 1, characterized in that: The groove depth of the limiting groove (31) does not exceed one quarter of the diameter of the locking rod (3).

4. A connection device for steel structure webs according to claim 1, characterized in that: The spacing angles between adjacent limiting ribs (21) on the limiting sleeve (2) are the same, the vertical rods of each limiting rib (21) on the limiting sleeve (2) are on the same plane, the vertical rod lengths s of each limiting rib (21) are the same, and the horizontal rods of the limiting ribs (21) are circular and surround the periphery of the limiting sleeve (2); The length of the crossbar of the limiting rib (21) is less than the depth of the inner groove of the lock box (1), and the difference does not exceed 1 mm.

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