Steel beam assembling pre-camber adjusting device

Abstract

A pre-camber adjustment device for steel beam assembly, belonging to the field of steel beam assembly technology, includes: a steel beam, a base, a first slot, and a positioning component. The steel beam includes two steel frames symmetrically arranged left and right, two crossbeams symmetrically arranged top and bottom, several positioning holes opened on the side walls of the steel frames, and positioning bolts threaded to the positioning holes and the free ends of the crossbeams; the base is located below the steel beam. This invention incorporates a supporting enclosure unit at the connection between the steel frames and the base, which effectively disperses the stress at the connection point, changes the stress distribution, and prevents excessive stress concentration in a localized area. Simultaneously, the supporting enclosure unit also provides auxiliary reinforcement, enhancing the structural strength of the connection. This not only improves the overall structural stability after steel beam assembly but also reduces the risk of deformation and loosening at the connection under external loads, providing a solid guarantee for the safety and stability of the steel beam assembly structure.

Description

Technical Field

[0001] This utility model belongs to the field of steel beam assembly technology, specifically relating to a steel beam assembly pre-camber adjustment device. Background Technology

[0002] Steel beam assembly is a crucial step in steel structure construction, involving the assembly of prefabricated steel beam components into a complete structure according to design requirements. This process typically takes place on the construction site or prefabrication yard, utilizing cranes and other equipment to transport components and securing them through welding, bolting, or other methods. Strict control over dimensional accuracy and connection quality is essential during assembly to ensure the overall performance of the steel beams and lay the foundation for subsequent engineering work.

[0003] The core purpose of setting the pre-camber of steel beams is to counteract the downward deflection caused by factors such as load, temperature changes, or material creep during the service phase, and to ensure that the structure maintains its design alignment and functional stability during long-term use.

[0004] A Chinese utility model patent (publication number CN215291576U) discloses a pre-camber adjustment device for steel beam assembly. The device includes a base, two height-adjusting screws threaded onto the base, and a support plate fixedly connected to the tops of the two height-adjusting screws. The base has a row of through holes running vertically through it. A corresponding connecting nut is supported on the top of the base and around the periphery of each through hole. The two height-adjusting screws are inserted into any two through holes and threadedly connected to the corresponding connecting nuts. This device is less restricted by terrain conditions, easy to operate, and detachable, significantly improving the construction efficiency of steel beam assembly.

[0005] In the above scheme, screws are used to connect the steel beam and the base to adjust the pre-camber of the steel beam assembly. In this method, the connection stress between the steel beam and the base is completely concentrated on the screws. Under external loads, the stress on the screws is too great, which makes the steel beam and the base very prone to breakage or twisting at the screw connection. This seriously affects the overall stability and support performance of the assembled steel beam and poses a potential threat to structural safety. Utility Model Content

[0006] To address the problem of existing technologies that use screws to connect steel beams and bases to adjust the pre-camber of steel beam assembly, which concentrates the stress between the steel beam and base entirely on the screws, causing excessive stress on the screws under external loads. This leads to a high risk of breakage or twisting at the screw connection point, severely impacting the overall stability and support performance of the assembled steel beam and posing a potential threat to structural safety. This invention provides a steel beam assembly pre-camber adjustment device. A support enclosure unit is installed at the connection point between the steel frame and base, effectively dispersing the stress at the connection point, changing the stress distribution, and preventing excessive stress concentration in a localized area. Simultaneously, the support enclosure unit also provides auxiliary reinforcement, enhancing the structural strength of the connection point. This not only improves the overall structural stability after steel beam assembly and reduces the risk of deformation and loosening at the connection point under external loads, but also significantly enhances the support performance of the steel beam, ensuring its reliable function under various loads and providing a solid guarantee for the safety and stability of steel beam assembly structures. The specific technical solution is as follows:

[0007] A pre-camber adjustment device for steel beam assembly includes: a steel beam, a base, a first slot, and a positioning component. The steel beam includes two steel frames symmetrically arranged horizontally, two crossbeams symmetrically arranged vertically, a plurality of positioning holes formed in the sidewalls of the steel frames, and positioning bolts threaded to the positioning holes and the free ends of the crossbeams. The base is located below the steel beam and is detachably connected to the steel beam. Two sets of the first slot are provided, and the two sets of the first slots are symmetrically formed on the base. The bottom end of the steel frame is insertably embedded in the first slot. The positioning component is located in the sidewall of the base and is used for locking and positioning after the positioning holes are inserted into the first slot.

[0008] In the above technical solution, the positioning component includes: a first through hole, a second through hole, a first insert rod, and a second insert rod. The first through hole is opened horizontally on the side wall of the base and is connected to the inner cavity of the first slot. The second through hole is opened horizontally on the side wall of the base and is connected to the inner cavity of the first slot. The second through hole is parallel to the first through hole and is located below the first through hole. The first insert rod is insertably and removably embedded in the inner cavity of the first through hole. The second insert rod is insertably and removably embedded in the inner cavity of the second through hole.

[0009] In the above technical solution, the positioning component further includes: a push plate and a screw. The push plate is installed on the right end of the first insertion rod and the second insertion rod. The end of the screw near the side wall of the base is rotatably connected to the base, and the screw thread passes through the outer wall of the push plate.

[0010] In the above technical solution, a drive block is installed at the end of the screw that is away from the side wall of the base.

[0011] In the above technical solution, the straight-line distance between the second through hole and the first through hole is N, the vertical distance between two adjacent positioning holes is M, and N is an integer multiple of M.

[0012] In the above technical solution, an auxiliary enclosure component is provided between the base and the steel frame. The auxiliary enclosure component includes a reinforcing base and a second slot. The reinforcing base is installed on the base. There are two second slots, and the two second slots are symmetrically opened on the reinforcing base. The second slots are opened through the reinforcing base from top to bottom.

[0013] In the above technical solution, the second slot is arranged vertically corresponding to the first slot.

[0014] In the above technical solution, a diagonal brace is installed at an angle between the upper and lower crossbeams.

[0015] In the above technical solution, the steel frame has a rectangular inner cavity extending from top to bottom, and the crossbeam is slidably embedded in the rectangular inner cavity of the steel frame.

[0016] In the above technical solution, the positioning bolt is threaded from the outside to the inside into one of the positioning holes, and the free end of the positioning bolt is threaded into the free end of the crossbeam.

[0017] The pre-camber adjustment device for steel beam assembly of this utility model has the following advantages compared with the prior art:

[0018] I. Regarding the existing method of using screws to connect steel beams and bases to adjust the pre-camber of steel beam assembly, the stress between the steel beam and base is completely concentrated in the screws. Under external loads, the excessive stress on the screws makes the steel beam and base prone to breakage or twisting at the screw connection, seriously affecting the overall stability and support performance of the assembled steel beam and posing a potential threat to structural safety. In this invention, a support enclosure unit is set at the connection between the steel frame and the base. This effectively disperses the stress at the connection, changes the stress distribution, and avoids excessive stress concentration in a localized area. Simultaneously, the support enclosure unit also has an auxiliary reinforcement function, enhancing the structural strength of the connection. This not only improves the overall structural stability after steel beam assembly and reduces the risk of deformation and loosening at the connection under external loads, but also significantly improves the support performance of the steel beam, ensuring that the steel beam can reliably function under various loads, providing a solid guarantee for the safety and stability of the steel beam splicing engineering structure.

[0019] Second, in this utility model, after adjusting the pre-camber of two adjacent sets of steel beams, the steel frame can be positioned by the double connection of the first and second insert rods in the base, ensuring the verticality of the connection of the steel frame in the base, and also ensuring that the steel frame is connected stably in the base.

[0020] Third, by setting up a first insert rod, a second insert rod, a push plate, and a screw, the first insert rod and the second insert rod can be simultaneously disengaged from or embedded into the inner cavity of the corresponding positioning hole in one go. This eliminates the need to position and connect the first insert rod and the second insert rod separately, making the connection between the steel frame and the base more efficient and convenient.

[0021] Fourth, this utility model is also provided with a reinforcing base and a second slot, which can further support and enclose the connection between the steel frame and the base and distribute the load, which helps to extend the service life of the connection between the steel frame and the base, reduce the risk of fatigue damage and structural failure caused by stress concentration, and improve the reliability and safety of the entire structural system.

[0022] In summary, this utility model incorporates a supporting enclosure unit at the connection between the steel frame and the base. This effectively disperses the stress at the connection point, alters the stress distribution, and prevents excessive stress concentration in a localized area. Furthermore, the supporting enclosure unit provides auxiliary reinforcement, enhancing the structural strength of the connection. This not only improves the overall stability of the assembled steel beam structure and reduces the risk of deformation or loosening at the connection under external loads, but also significantly enhances the supporting performance of the steel beam. This ensures the steel beam can reliably function under various loads, providing a solid guarantee for the safety and stability of the steel beam splicing engineering structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the steel beam assembly pre-camber adjustment device of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the steel frame of this utility model when it is detached from the base;

[0025] Figure 3 This is a schematic diagram of the main structure of the steel beam assembly pre-camber adjustment device of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the base of this utility model;

[0027] Figure 5 This is a top view of the reinforcing base of this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of the reinforcing base of this utility model when it is detached from the base.

[0029] Figure 7 This is a schematic diagram of the structure of the first insertion rod of this utility model when it is disengaged from the first through hole;

[0030] Figures 1 to 7 In the middle, 1. steel frame, 2. positioning hole, 3. crossbeam, 4. positioning bolt, 5. base, 6. first slot, 7. first through hole, 8. second through hole, 9. first insert rod, 10. second insert rod, 11. push plate, 12. screw rod, 13. drive block, 14. reinforcing base, 15. second slot, 16. diagonal bar. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0033] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0035] Unless otherwise stated, the term "multiple" means two or more.

[0036] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0037] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0038] The following are specific implementation cases and appendices. Figures 1 to 7 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0039] A pre-camber adjustment device for steel beam assembly includes: a steel beam, a base 5, a first slot 6, and a positioning component. The steel beam includes two steel frames 1 arranged symmetrically on the left and right, two crossbeams 3 arranged symmetrically on the top and bottom, a plurality of positioning holes 2 opened on the side wall of the steel frame 1, and positioning bolts 4 threadedly connected to the positioning holes 2 and the free ends of the crossbeams 3. The base 5 is located below the steel beam and is detachably connected to the steel beam. Two sets of first slots 6 are provided, and the two sets of first slots 6 are symmetrically opened on the base 5. The bottom end of the steel frame 1 is insertably embedded in the first slot 6. The positioning component is located on the side wall of the base 5 and is used for locking and positioning after the positioning holes 2 are inserted into the first slot 6.

[0040] In this utility model, a supporting enclosure unit is provided at the connection between the steel frame 1 and the base 5. This unit can effectively disperse the stress at the connection, change the stress distribution, and prevent excessive stress concentration in a local area. At the same time, the supporting enclosure unit also has the function of auxiliary reinforcement, which enhances the structural strength of the connection. This not only improves the overall stability of the steel beam after assembly and reduces the risk of deformation and loosening at the connection under external loads, but also significantly improves the supporting performance of the steel beam. This ensures that the steel beam can reliably function when bearing various loads, providing a solid guarantee for the safety and stability of the steel beam splicing engineering structure.

[0041] Main references Figure 6 and Figure 7As shown, the positioning assembly includes: a first through hole 7, a second through hole 8, a first insert rod 9, and a second insert rod 10. The first through hole 7 is horizontally opened on the side wall of the base 5 and communicates with the inner cavity of the first slot 6. The second through hole 8 is horizontally opened on the side wall of the base 5 and communicates with the inner cavity of the first slot 6. The second through hole 8 is parallel to the first through hole 7 and is located below the first through hole 7. The first insert rod 9 is insertably and removably embedded in the inner cavity of the first through hole 7. The second insert rod 10 is insertably and removably embedded in the inner cavity of the second through hole 8. After adjusting the pre-camber of two adjacent sets of steel beams, the steel frame 1 can be positioned by a double connection of the first insert rod 9 and the second insert rod 10 within the base 5, ensuring the steel frame 1 is positioned. The verticality of the frame 1 connected within the base 5 ensures a sufficiently stable connection for the steel frame 1 within the base 5. The positioning assembly also includes a push plate 11 and a screw 12. The push plate 11 is installed at the right end of the first insert rod 9 and the second insert rod 10. The end of the screw 12 near the side wall of the base 5 is rotatably connected to the base 5, and the screw 12 is threaded through the outer wall of the push plate 11. By setting the first insert rod 9, the second insert rod 10, the push plate 11, and the screw 12, the first insert rod 9 and the second insert rod 10 can be simultaneously disengaged from or embedded into the inner cavity of the corresponding positioning hole 2 in one go. This eliminates the need to position and connect the first insert rod 9 and the second insert rod 10 separately, making the connection between the steel frame 1 and the base 5 more efficient and convenient.

[0042] Specifically, the straight-line distance between the second through hole 8 and the first through hole 7 is N, and the vertical distance between two adjacent positioning holes 2 is M, and N is an integer multiple of M. That is, after the first insert rod 9 and the second insert rod 10 are inserted into the first through hole 7 and the second through hole 8 respectively, the first insert rod 9 and the second insert rod 10 can accurately correspond to the position of the positioning hole 2, and there will be no situation where the distance between the first insert rod 9 and the second insert rod 10 is misaligned with the positioning hole 2 at the upper and lower positions, resulting in inaccurate positioning.

[0043] In addition, a drive block 13 is installed at the end of the screw 12 away from the side wall of the base 5. With the help of a wrench that corresponds to the shape of the drive block 13, the rotation of the screw 12 can be driven more easily by visual observation, so as to more easily drive the first insert 9 and the second insert 10 of the push plate 11 to move in the horizontal direction.

[0044] Main references Figure 2 and Figure 6As shown, an auxiliary enclosure assembly is provided between the base 5 and the steel frame 1. This assembly includes a reinforcing base 14 and a second slot 15. The reinforcing base 14 is mounted on the base 5. Two second slots 15 are provided, symmetrically positioned on the reinforcing base 14, extending from top to bottom. The resulting positioning holes 2 at the base 5 form a supporting enclosure structure. Compared to the traditional screw connection method, this better ensures the stability of the connection between the positioning holes 2 in the steel beam and the base 5. From the perspective of the overall structural system, the presence of the reinforcing base 14 and the second slot 15 enhances the reliability of the entire structure. When facing complex and variable external forces, the structure can more stably bear the load, reducing the probability of unexpected deformation or damage, effectively ensuring the safety of the structure and laying a solid foundation for the long-term stable operation of related projects.

[0045] In order to ensure that the steel frame 1 can pass through the inner cavity of the second slot 15 and the first slot 6 from top to bottom, the second slot 15 and the first slot 6 are arranged vertically to avoid misalignment of the second slot 15 and the first slot 6 from affecting the normal connection between the steel frame 1 and the base 5.

[0046] To ensure the stability of the connection between the crossbeams 3 in the steel beam, diagonal braces 16 are installed at an angle between the upper and lower crossbeams 3. The diagonal braces 16, together with the crossbeams 3 and the steel frame 1, form a triangular structure, which helps to maintain the overall stability of the steel beam.

[0047] The steel frame 1 has a rectangular inner cavity running through it from top to bottom, and the crossbeam 3 is slidably embedded in the rectangular inner cavity of the steel frame 1.

[0048] The positioning bolt 4 is threaded from the outside to the inside into one of the positioning holes 2, and the free end of the positioning bolt 4 is threaded into the free end of the crossbeam 3.

[0049] It is worth noting that in this application, the screw 12 is a self-locking screw 12 available on the market. It can self-lock when it stops rotating and will not rotate due to external forces. The model of the aforementioned existing component will not be limited or described in detail here. In this application, when adjusting the pre-camber of two adjacent sets of steel beams, the height of the two sets of steel beams is adjusted accordingly to form a staggered arrangement of steel beams with a counteracting structure. This avoids downward deformation caused by factors such as load, temperature changes, or material creep during use. The principle used is the same as the principle of steel beam pre-camber setting in the prior art [Utility Model Patent No. CN215291576U]. It will not be described or limited here.

[0050] The working principle of the pre-camber adjustment device for steel beam assembly in this embodiment is as follows:

[0051] When assembling the pre-camber of the steel beam, the height of the steel frame 1 and the overall height of the steel beam are adjusted by adjusting the height of the steel frame 1 inserted into the first slot 6: the positioning holes 2 at different positions are inserted into the corresponding cavities of the second slot 15 and the first slot 6, the drive block 13 is rotated to drive the screw 12 to rotate, causing the push plate 11 to move closer to the cavity of the first slot 6, causing the first insertion rod 9 and the second insertion rod 10 to gradually insert into the cavities of the corresponding first through hole 7 and the second through hole 8, until the free ends of the first insertion rod 9 and the second insertion rod 10 are inserted into the cavities of the corresponding positioning holes 2 on the steel frame 1, thereby realizing the connection of the positioning holes 2 in the cavities of the second slot 15 and the first slot 6, that is, realizing the stable connection between the overall steel beam and the base 5;

[0052] After the positioning hole 2 is connected, it forms a supporting enclosure structure at the reinforcing seat 14 and the base 5. Compared with the traditional screw connection method, it can better ensure the stability of the connection between the positioning hole 2 in the steel beam and the base 5.

[0053] This invention incorporates a support enclosure unit at the connection between the steel frame 1 and the base 5. This unit effectively disperses the stress at the connection, alters the stress distribution, and prevents excessive stress concentration in a localized area. Furthermore, the support enclosure unit provides auxiliary reinforcement, enhancing the structural strength of the connection. This not only improves the overall stability of the assembled steel beam structure and reduces the risk of deformation or loosening at the connection under external loads, but also significantly enhances the support performance of the steel beam. This ensures the steel beam can reliably function under various loads, providing a solid guarantee for the safety and stability of the steel beam splicing engineering structure.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pre-camber adjustment device for steel beam assembly, characterized in that: include: The steel beam includes two steel frames (1) arranged symmetrically on the left and right, two crossbeams (3) arranged symmetrically on the top and bottom, a number of positioning holes (2) opened on the side wall of the steel frame (1), and positioning bolts (4) threadedly connected to the positioning holes (2) and the free end of the crossbeam (3). The base (5) is disposed below the steel beam and is detachably connected to the steel beam; The first slot (6) is provided in two sets, and the two sets of the first slot (6) are symmetrically opened on the base (5). The bottom end of the steel frame (1) is inserted into the first slot (6). A positioning component is disposed on the side wall of the base (5) for locking and positioning after the positioning hole (2) is inserted into the first slot (6).

2. The pre-camber adjustment device for steel beam assembly according to claim 1, characterized in that: The positioning component includes: The first through hole (7) is opened horizontally on the side wall of the base (5) and is connected to the inner cavity of the first slot (6); The second through hole (8) is opened horizontally on the side wall of the base (5), and the first through hole (7) is connected to the inner cavity of the first slot (6), and the second through hole (8) is arranged parallel to the first through hole (7), and the second through hole (8) is located below the first through hole (7); The first insertion rod (9) is insertably embedded in the cavity of the first through hole (7); The second insert (10) is insertably embedded in the cavity of the second through hole (8).

3. The pre-camber adjustment device for steel beam assembly according to claim 2, characterized in that: The positioning component also includes: Push plate (11), the push plate (11) is installed at the right end of the first insertion rod (9) and the second insertion rod (10); The screw (12) is rotatably connected to the base (5) at one end near the side wall of the base (5), and the screw (12) is threaded through the outer wall of the push plate (11).

4. The pre-camber adjustment device for steel beam assembly according to claim 3, characterized in that: A drive block (13) is installed at the end of the screw (12) away from the side wall of the base (5).

5. The pre-camber adjustment device for steel beam assembly according to claim 2, characterized in that: The straight-line distance between the second through hole (8) and the first through hole (7) is N, the vertical distance between two adjacent positioning holes (2) is M, and N is an integer multiple of M.

6. The pre-camber adjustment device for steel beam assembly according to claim 1, characterized in that: An auxiliary enclosure assembly is provided between the base (5) and the steel frame (1), the auxiliary enclosure assembly comprising: A reinforcing base (14) is mounted on the base (5); The second slot (15) is provided in two parts, and the two second slots (15) are symmetrically opened on the reinforcing base (14). The second slots (15) are opened through the reinforcing base (14) from top to bottom.

7. The pre-camber adjustment device for steel beam assembly according to claim 6, characterized in that: The second slot (15) is arranged vertically to correspond with the first slot (6).

8. The pre-camber adjustment device for steel beam assembly according to claim 1, characterized in that: An inclined rod (16) is installed between the upper and lower crossbeams (3).

9. The pre-camber adjustment device for steel beam assembly according to claim 1, characterized in that: The steel frame (1) has a rectangular inner cavity extending from top to bottom, and the crossbeam (3) is slidably embedded in the rectangular inner cavity of the steel frame (1).

10. A steel beam assembly pre-camber adjustment device according to claim 1, characterized in that: The positioning bolt (4) is threaded from the outside to the inside into one of the positioning holes (2), and the free end of the positioning bolt (4) is threaded into the free end of the crossbeam (3).

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