Anti-shearing key and steel structure support anti-shearing device

Abstract

The utility model relates to the technical field of building steel structures, in particular to an anti-shearing key and a steel structure support anti-shearing device, the anti-shearing key comprises an anti-shearing bottom plate, an anti-shearing check block and an anti-shearing embedded part, and a through hole is formed in the anti-shearing bottom plate and used for penetrating a foundation bolt; the anti-shearing baffle block is arranged on the anti-shearing bottom plate and is used for bearing transverse shearing force; the shear-resistant embedded part is arranged on the side, away from the shear-resistant check block, of the shear-resistant bottom plate. The anti-shearing embedded part of the anti-shearing key is embedded in the foundation, the bottom of the steel structure support is connected to the anti-shearing bottom plate through the foundation bolt, the end of the foundation bolt penetrates into the foundation, and then the steel structure support can be fixed to the foundation, when transverse shearing force occurs, the steel structure support can form transverse shearing force on the anti-shearing check block of the anti-shearing key, and therefore the steel structure support can be fixed to the foundation. Transverse shearing force at the bottom of the steel structure support is transmitted to the shear key, the foundation bolt is prevented from bearing the transverse shearing force, connection of the foundation and the steel structure support is more efficient, force transmission is clear, and the shear key is easy to install and operate, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of building steel structures, in particular to a shear-resistant key and a shear-resistant device for a steel structure support. Background Art

[0002] At present, in most steel structure construction, a lightweight and efficient stress form is achieved by reducing the amount of steel used. Due to the light weight of the steel structure, the shear force borne by the column base under the action of horizontal loads becomes larger and larger. The horizontal reaction force is borne by the friction between the base plate and the concrete foundation or by setting shear keys, so most column bases are equipped with shear keys.

[0003] In the prior art, the shear resistance of steel structure column bases is mostly achieved by vertically welding channel steel or I-beam shear keys on the bottom plate of the steel structure column and pre-embedded in a shear groove reserved in the concrete foundation. Generally, micro-expansive concrete is used for secondary pouring. The foundation construction is inconvenient, the installation requirements are high, and the installation process is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model provides a shear key and a shear device for a steel structure support, which are used to solve the defects in the prior art that the shear key easily leads to inconvenient foundation construction, high installation requirements, and time-consuming and labor-intensive installation process, so as to achieve more efficient connection between the foundation and the steel structure support, clear force transmission, simple installation operation, and time-saving and labor-saving.

[0005] The utility model provides a shear-resistant key, comprising:

[0006] A shear-resistant bottom plate, wherein the shear-resistant bottom plate is provided with holes for inserting anchor bolts;

[0007] A shear stopper, arranged on the shear bottom plate, for bearing lateral shear force;

[0008] The shear-resistant embedded part is arranged on a side of the shear-resistant base plate away from the shear-resistant stopper.

[0009] According to the shear key provided by the utility model, the shear embedded part is a steel structure.

[0010] According to a shear key provided by the utility model, the shear embedded part is an angle steel, a channel steel or an I-beam.

[0011] The utility model also provides a shear resistance device for a steel structure support, comprising the shear resistance key and a bottom plate flange as described in any one of the above, wherein the bottom plate flange is arranged at the bottom of the steel structure support, and there are a plurality of shear resistance keys, and the plurality of shear resistance keys are evenly distributed around the bottom plate flange;

[0012] The base plate flange is connected to the shear-resistant base plates of the multiple shear keys through the anchor bolts, the shear-resistant blocks of the multiple shear keys are evenly distributed circumferentially around the edge of the base plate flange, and the shear-resistant embedded parts of the multiple shear keys are embedded in the foundation.

[0013] According to the anti-shear device for a steel structure support provided by the utility model, the edge of the bottom plate flange corresponding to the anti-shear stopper is arranged as a plane structure.

[0014] According to the anti-shear device of a steel structure support provided by the utility model, a gap is left between the bottom plate flange and the anti-shear stopper, and a gasket is detachably arranged in the gap.

[0015] According to the anti-shear device of a steel structure support provided by the utility model, a pad is detachably arranged between the bottom plate flange and the anti-shear bottom plate.

[0016] According to the anti-shear device of a steel structure support provided by the utility model, the anti-shear stopper is provided with an installation channel along the radial direction of the bottom plate flange, which is suitable for taking and placing the pad through the installation channel.

[0017] According to the anti-shear device of a steel structure support provided by the utility model, there are four anti-shear keys, which are distributed in a cross shape and circumferentially connected to the bottom plate flange.

[0018] According to a shear-resistant device for a steel structure support provided by the utility model, a rib is provided on the side of the bottom plate flange facing the steel structure support, one end of the rib is fixed to the steel structure support, and the other end faces the shear-resistant stopper.

[0019] The utility model provides a shear key and a shear device for a steel structure support. The shear key can be suitable for shearing the base of a cableway steel structure column. The shear embedded parts of the shear key are embedded in the foundation. The bottom of the steel structure support is connected to the shear bottom plate by anchor bolts, and the ends of the anchor bolts are inserted into the foundation to fix the steel structure support on the foundation. The shear stopper of the shear key is located at the edge of the steel structure support. When a lateral shear force occurs, the steel structure support will form a lateral shear force on the shear stopper of the shear key, and transfer the lateral shear force at the bottom of the steel structure support to the shear key, so as to avoid the anchor bolts from bearing the lateral shear force, thereby making the connection between the foundation and the steel structure support more efficient and with clear force transmission. The shear key of this embodiment is easy to install and operate, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a front view structural schematic diagram of the shear key provided by the utility model;

[0022] Figure 2 It is a schematic diagram of the top view structure of the shear key provided by the utility model;

[0023] Figure 3 It is a front view structural cross-sectional schematic diagram of the steel structure support shear resistance device provided by the utility model;

[0024] Figure 4 It is a top view structural schematic diagram of the steel structure support shear resistance device provided by the utility model.

[0025] Reference numerals:

[0026] 1. Shear-resistant base plate; 11. Perforation; 2. Anchor bolts; 3. Shear-resistant stoppers; 4. Shear-resistant embedded parts; 5. Base plate flange; 6. Foundation; 7. Gasket; 8. Installation channel; 9. Rib plate. DETAILED DESCRIPTION

[0027] 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 conjunction with the drawings in 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 in 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.

[0028] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood in specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Combine the following Figure 1 to Figure 4 The utility model describes the structure of the shear key and the shear device of the steel structure support.

[0033] An embodiment of the present invention provides a shear key. Figure 1 and Figure 2 As shown, it includes a shear-resistant base plate 1, a shear stopper 3 and a shear-resistant embedded part 4, wherein the shear-resistant base plate 1 is provided with a through hole 11 for passing the anchor bolt 2, and the setting of the through hole 11 can avoid mutual interference between the anchor bolt 2 and the shear key; the shear stopper 3 is arranged on the shear-resistant base plate 1 to withstand lateral shear force; the shear-resistant embedded part 4 is arranged on the side of the shear-resistant base plate 1 away from the shear stopper 3.

[0034] It can be understood that the shear key of this embodiment can be suitable for the shear resistance of the cableway steel structure column foot. The shear embedded part 4 of the shear key is embedded in the foundation, and the bottom of the steel structure bracket is connected to the shear bottom plate 1 through the anchor bolt 2, and the end of the anchor bolt 2 is inserted into the foundation, so that the steel structure bracket can be fixed on the foundation. The shear stopper 3 of the shear key is located at the edge of the steel structure bracket. When lateral shear force occurs, the steel structure bracket will form lateral shear force on the shear stopper 3 of the shear key, and transfer the lateral shear force at the bottom of the steel structure bracket to the shear key, so as to prevent the anchor bolt 2 from bearing the lateral shear force, so as to make the connection between the foundation and the steel structure bracket more efficient, and the force transmission is clear. The shear key of this embodiment is simple to install and operate, saving time and effort.

[0035] In some embodiments, the shear embedded part 4 of the shear key is a steel structure, which is processed from steel, and can be angle steel, channel steel or I-beam, such as Figure 2 and Figure 4 The shear-resistant embedded part 4 shown is an angle steel. Using a steel structure can reduce the use of materials, and is easy to install and simple to construct.

[0036] Another embodiment of the present invention provides a steel structure support shearing device, including the shearing key described in any one of the above embodiments, and also including a bottom plate flange 5, see Figure 3 and Figure 4 As shown, the base plate flange 5 is arranged at the bottom of the steel structure support, and there are multiple shear keys, which are evenly distributed around the base plate flange 5 in the circumferential direction.

[0037] The base plate flange 5 is connected to the shear-resistant base plate 1 of the multiple shear keys through the anchor bolts 2, the shear-resistant blocks 3 of the multiple shear keys are evenly distributed around the edge of the base plate flange 5, and the shear-resistant embedded parts 4 of the multiple shear keys are embedded in the foundation 6.

[0038] The steel structure support is to be fixed on the foundation 6. During the fixing process, the steel structure support shearing device of this embodiment can be added. Specifically, see again Figure 3 As shown, a bottom plate flange 5 is provided at the bottom of the steel structure support, and a plurality of shear keys are embedded on the foundation 6 with reference to the shape of the bottom plate flange 5, and the shear embedded parts 4 of the shear keys are embedded inside the foundation 6, and the shear bottom plate 1 of the shear keys is exposed on the surface of the foundation 6, and the shear stoppers 3 of the plurality of shear keys are distributed in an annular manner, suitable for being evenly arranged circumferentially around the bottom plate flange 5. The steel structure support together with the bottom plate flange 5 is placed on the shear bottom plate 1 of the plurality of shear keys, and then connected and installed by the anchor bolts 2, and the anchor bolts 2 sequentially pass through the bolt holes on the bottom plate flange 5 and the through holes 11 on the shear bottom plate 1, and then extend into the reserved holes on the foundation 6, so that the steel structure support can be fixed on the foundation 6.

[0039] It can be understood that the steel structure support anti-shear device in the above embodiment, the connection and fixation between the steel structure support and the foundation 6 are mainly achieved through the anchor bolts 2, and the lateral movement trend of the steel structure support is transmitted to the shear stopper 3 through the bottom plate flange 5. The shear stopper 3 bears the lateral shear force of the steel structure support, which can avoid the anchor bolts 2 from bearing the lateral shear force and ensure the long-term stable operation of the overall structure. The steel structure support anti-shear device of this embodiment makes the connection between the foundation and the steel structure support more efficient, the force transmission is clear, the installation operation is simple, and it saves time and effort.

[0040] In some embodiments of the steel structure support anti-shear device, the bottom plate flange 5 is arranged as a plane structure at the edge corresponding to the anti-shear stopper 3. A gap is left between the bottom plate flange 5 and the anti-shear stopper 3, and a gasket 7 is detachably arranged in the gap.

[0041] In the above embodiment, the edge of the bottom plate flange 5 corresponding to the shear stopper 3 is processed into a plane structure, and the plane structure is the contact position between the bottom plate flange 5 and the shear stopper 3. Compared with the circular edge of the traditional flange, the plane structure is easier to ensure the relative contact between the bottom plate flange 5 and the shear stopper 3 and the transmission of the transverse shear force. During the installation process, there is a certain gap between the plane structure surface of the edge of the bottom plate flange 5 and the shear stopper 3. In this embodiment, a gasket 7 is filled in the gap between the edge of the bottom plate flange 5 and the shear stopper 3. The gasket 7 can be rectangular in shape, consistent with the edge of the bottom plate flange 5. Of course, the gasket 7 can also be other shapes as long as it can meet the gap filling function. The gasket 7 can be multiple pieces. Specifically, the number of gaskets 7 filled in can be determined according to the size of the gap between the edge of the bottom plate flange 5 and the shear stopper 3, so that the edge of the bottom plate flange 5 is tightly fitted with the shear stopper 3 through the gasket 7 to ensure the transmission of the transverse shear force.

[0042] For some examples, see Figure 4 As shown, the shear bottom plate 1 of the shear key includes a connected rectangular portion and a trapezoidal portion, the shear stopper 3 is fixed to the rectangular portion, the height of the trapezoidal portion is consistent with the ring diameter of the bottom plate flange 5, the through hole 11 is set in the trapezoidal portion, and the shear embedded part 4 is fixed to the trapezoidal portion. When installed, the trapezoidal portion of the shear bottom plate 1 is connected and arranged in a close fit with the bottom plate flange 5, and the shear stopper 3 on the rectangular portion is located at the edge plane of the bottom plate flange 5.

[0043] In other embodiments of the steel structure support shear resistance device, a backing plate is detachably provided between the bottom plate flange 5 and the shear resistance bottom plate 1. The shear resistance stopper 3 is provided with an installation channel 8 along the radial direction of the bottom plate flange 5, suitable for taking and placing the backing plate through the installation channel 8.

[0044] It is understandable that the presence of the pad can adjust the height of the steel structure bracket on the foundation. If the height of the steel structure bracket needs to be increased, the pad is inserted from the installation channel 8 of the bottom plate flange 5, and the pad moves toward the bottom plate flange 5 through the installation channel 8, raising the bottom plate flange 5 so that the pad is located below the bottom plate flange 5. The height of the bottom plate flange 5 is raised as needed, and the number of pads to be inserted is selected, and after the height is adjusted, it is connected and fixed by the anchor bolts 2. On the contrary, if the height of the steel structure bracket needs to be lowered, the above process is reversed, and the corresponding pad is taken out.

[0045] In the anti-shear device of the steel structure support, there are multiple shear keys, which are evenly distributed and connected along the axial direction of the base plate flange 5. Generally, the number and position of the shear keys can be selected according to the direction of the shear force that the steel structure support is expected to withstand in the environment of the installation site. In the present embodiment, there are four shear keys, which are distributed in a cross shape and circumferentially connected to the base plate flange 5. The four shear keys arranged in a cross shape can withstand lateral shear forces in different directions.

[0046] In some other embodiments of the anti-shear device for the steel structure support, a rib plate 9 is provided on the side of the bottom plate flange 5 facing the steel structure support, one end of the rib plate 9 is fixed to the steel structure support, and the other end faces the anti-shear block 3. Figure 3 As shown, the rib plate 9 and the bottom plate flange 5 cooperate to change the lateral movement trend of the steel structure support in one direction from the point movement trend at the bottom plate flange 5 to the line movement trend formed by the rib plate 9 and the bottom plate flange 5, that is, the lateral movement trend of the steel structure support is borne by the connection between the rib plate 9 and the steel structure support and the connection between the bottom plate flange 5 and the steel structure support. The rib plate 9 is a right-angled trapezoidal structure as a whole. The upper bottom surface of the right-angled trapezoid and the edge plane of the bottom plate flange 5 act together on the gasket 7 and the shear stopper 3 to ensure the stability of the steel structure support.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A shear key, characterized in that: include: A shear-resistant base plate (1), wherein the shear-resistant base plate (1) is provided with a through hole (11) for passing an anchor bolt (2); A shear stopper (3) is arranged on the shear bottom plate (1) and is used to withstand transverse shear force; The shear-resistant embedded part (4) is arranged on a side of the shear-resistant base plate (1) away from the shear-resistant stopper (3).

2. The shear key according to claim 1, characterized in that: The shear-resistant embedded part (4) is a steel structure.

3. The shear key according to claim 1, characterized in that: The shear-resistant embedded part (4) is an angle steel, a channel steel or an I-beam.

4. A steel structure support shear resistance device, characterized in that: It comprises the shear key and the bottom plate flange (5) as claimed in any one of claims 1 to 3, wherein the bottom plate flange (5) is arranged at the bottom of the steel structure support, and there are a plurality of shear keys, which are evenly distributed around the bottom plate flange (5); The base plate flange (5) is connected to the shear-resistant base plates (1) of the plurality of shear-resistant keys via the anchor bolts (2); the shear-resistant stoppers (3) of the plurality of shear-resistant keys are evenly distributed circumferentially around the edge of the base plate flange (5); and the shear-resistant embedded parts (4) of the plurality of shear keys are embedded in the foundation (6).

5. The anti-shear device for a steel structure support according to claim 4, characterized in that: The bottom plate flange (5) is arranged as a plane structure at an edge corresponding to the anti-shear stopper (3).

6. The anti-shear device for the steel structure support according to claim 5, characterized in that: A gap is left between the bottom plate flange (5) and the anti-shear stopper (3), and a gasket (7) is detachably arranged in the gap.

7. The anti-shear device for a steel structure support according to claim 4, characterized in that: A pad is detachably arranged between the base plate flange (5) and the shear-resistant base plate (1).

8. The anti-shear device for a steel structure support according to claim 7, characterized in that: The anti-shear stopper (3) is provided with a mounting channel (8) along the radial direction of the bottom plate flange (5), which is suitable for taking and placing the pad through the mounting channel (8).

9. The anti-shear device for a steel structure support according to any one of claims 4 to 8, characterized in that: There are four anti-shear keys, which are distributed in a cross shape and are circumferentially connected to the bottom plate flange (5).

10. The anti-shear device for a steel structure support according to any one of claims 4 to 8, characterized in that: A rib plate (9) is provided on the side of the bottom plate flange (5) facing the steel structure support, one end of the rib plate (9) is fixed to the steel structure support, and the other end faces the shear stopper (3).

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