CN222649571U - Adjustable steel beam return device - Google Patents
Adjustable steel beam return device Download PDFInfo
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- CN222649571U CN222649571U CN202420544457.8U CN202420544457U CN222649571U CN 222649571 U CN222649571 U CN 222649571U CN 202420544457 U CN202420544457 U CN 202420544457U CN 222649571 U CN222649571 U CN 222649571U
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Abstract
The utility model discloses an adjustable steel beam back-jacking device which comprises a top bracket, adjusting screws, balance screws, a supporting section and a bottom supporting seat, wherein the top bracket is of a U-shaped structure, a steel beam can be placed in the top bracket, the lower ends of the adjusting screws are respectively connected to a top plate of the supporting section through adjusting nuts in a rotatable and adjustable mode, the upper ends of the adjusting screws are respectively and vertically connected to a bottom plate of the top bracket, the balance screws are respectively connected between the bottom plate of the top bracket and the top plate of the supporting section through locking nuts, the bottom supporting seat is arranged at the bottom of the supporting section, and the bottom supporting seat is fixed on a supporting member. The utility model relates to the technical field of building construction equipment, and can solve the problem that a steel beam supporting structure in the prior art is poor in supporting stability and adaptability.
Description
Technical Field
The utility model relates to the technical field of building construction equipment, in particular to an adjustable steel beam roof returning device.
Background
In the construction process of high-rise steel structures, various complicated special-shaped space structures are also widely applied to various buildings. The large cantilever steel structure is the most widely applied, and the structure has long construction period and multiple influencing factors due to the complex structure system and construction difficulty, so that the construction difficulty is increased, and the stress condition in the construction process is different from that of the traditional structure system and cannot be constructed according to the traditional construction technology.
Because the height difference of the cantilever beams at the upper layer and the lower layer of the nonstandard layer in the high-rise structure is inconsistent, inconvenience is brought to the installation and construction of the cantilever beams. The Chinese patent CN213953101U discloses a temporary support for butt joint of steel beams, the support stability of the support structure is poor, the support structure can only be used for temporary support of the steel beams, the installation and use requirements of overhanging type steel beams cannot be met, the support structure cannot be stably arranged on members in different forms, and the adaptability is poor. Therefore, it is necessary to provide an adjustable steel girder jack-back device, which can solve the problem of poor supporting stability and adaptability of the steel girder supporting structure in the prior art.
Disclosure of Invention
The utility model aims to provide an adjustable steel beam back-jacking device which can solve the problem that a steel beam supporting structure in the prior art is poor in supporting stability and adaptability.
The utility model is realized in the following way:
The adjustable steel beam back-jacking device comprises a top bracket, adjusting screws, balance screws, a supporting section and a bottom supporting seat, wherein the top bracket is of a U-shaped structure, a steel beam can be placed in the top bracket, the lower ends of the adjusting screws are respectively connected to a top plate of the supporting section through adjusting nuts in a rotatable and adjustable mode, the upper ends of the adjusting screws are respectively and vertically connected to a bottom plate of the top bracket, the balance screws are respectively connected between the bottom plate of the top bracket and the top plate of the supporting section through locking nuts, the bottom supporting seat is arranged at the bottom of the supporting section, and the bottom supporting seat is fixed on a supporting member.
When the supporting member is a box-shaped steel beam, the bottom supporting seat comprises a first supporting plate and end plates, the first supporting plate is of an inverted U-shaped structure and covers the top and two sides of the box-shaped steel beam, and the end plates are symmetrically connected to the outer walls of the two sides of the first supporting plate respectively.
The end plate is of an inverted L-shaped structure, the horizontal section of the end plate is fixed on the horizontal section of the first support plate and is fixedly connected with the bottom of the support joint, and the vertical section of the end plate is fixed on the vertical section of the first support plate.
When the supporting member is an I-shaped steel beam, the bottom supporting seat comprises a second supporting plate and a connecting plate, an ear plate is formed on the upper wing plate of the I-shaped steel beam, the second supporting plate is of a planar plate-shaped structure and is arranged on the upper wing plate of the I-shaped steel beam in a fitting mode, one end of the connecting plate is fixedly connected with the second supporting plate and the supporting joint, and the other end of the connecting plate is fixedly connected with the ear plate.
The adjusting screws are symmetrically arranged about the center of the top plate of the supporting section, the balancing screws are symmetrically arranged about the center of the top plate of the supporting section, and the balancing screws are arranged on the outer sides of the adjusting screws.
A pair of reinforcing plates is formed between the top plate and the bottom supporting seat of the supporting joint, a plurality of balance screws are located right above the pair of reinforcing plates, and a plurality of adjusting screws are located between the pair of reinforcing plates and the web plate of the supporting joint.
The top bracket, the support joint and the bottom support seat are coaxially arranged.
Compared with the prior art, the utility model has the following beneficial effects:
1. The adjusting screw rod is arranged, so that the adjusting screw rod can be controlled to do linear lifting movement under the action of rotation of the adjusting nut, the top bracket is driven to lift, the supporting requirements of overhanging type steel beams with different heights in a non-standard layer can be met, the adjusting operation is convenient, the adjusting precision is high, and the steel beam jacking safety and the construction efficiency are improved.
2. The balance screw rod is arranged and can be fixed between the bottom plate of the top bracket and the top plate of the supporting joint through the double nuts, so that the bearing capacity and the jacking stability of the whole device are improved, the construction safety is improved, and the dismounting is more convenient and quicker due to the screwing mode of the threads.
3. The utility model is provided with the bottom supporting seat, can adapt to the box-shaped steel beam and the I-shaped steel beam through the first supporting plate with the inverted U-shaped structure and the second supporting plate with the flat plate-shaped structure, has good adaptability to different types of supporting members while ensuring reliable support, and has wide application range.
Drawings
FIG. 1 is a schematic view of the adjustable steel beam roof returning device (embodiment 1);
FIG. 2 is a schematic view of the structure of the support section, the bottom support base and the support member of the adjustable steel beam jack-back device of the present utility model (example 1);
FIG. 3 is a schematic structural view of an adjustable steel beam roof returning device (embodiment 2);
FIG. 4 is a schematic view of the structure of the support section, the bottom support base and the support member of the adjustable steel beam jack-back device of the present utility model (example 2);
FIG. 5 is a top plan view of the bottom plate of the top bracket of the adjustable steel beam topping device of the present utility model;
Fig. 6 is a front view of the balance screw in the adjustable steel girder topping device of the present utility model.
In the figure, 1 top bracket, 2 adjusting screw, 201 adjusting nut, 3 balancing screw, 301 locking nut, 4 support section, 401 reinforcing plate, 5 bottom support seat, 501 first backup pad, 502 end plate, 503 second backup pad, 504 connecting plate, 601 box girder, 602I-beam, 603 otic placode.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
Referring to fig. 1 to 4, an adjustable steel beam jack-back device comprises a top bracket 1, adjusting screws 2, balance screws 3, a supporting section 4 and a bottom supporting seat 5, wherein the top bracket 1 is of a U-shaped structure, a steel beam can be placed in the top bracket 1, the lower ends of the adjusting screws 2 are respectively and rotatably connected to the top plate of the supporting section 4 through adjusting nuts 201, the upper ends of the adjusting screws 2 are respectively and vertically connected to the bottom plate of the top bracket 1, the balance screws 3 are respectively connected between the bottom plate of the top bracket 1 and the top plate of the supporting section 4 through locking nuts 301, the bottom supporting seat 5 is installed at the bottom of the supporting section 4, and the bottom supporting seat 5 is fixed on a supporting member.
Preferably, the adjusting nut 201 is rotatably mounted on the bottom surface of the top plate of the support section 4 by a rotation bearing so as to be rotatable relative to the top plate of the support section 4. The top plate of the support section 4 is reserved with through holes for the lower ends of the adjusting screws 2 to penetrate, the adjusting screws 2 can be provided with four through holes, and the adjusting nuts 201 are correspondingly provided with four through holes aligned with the top plate of the support section 4. The upper ends of the four adjusting screws 2 are vertically welded on the bottom surface of the bottom plate of the top bracket 1.
The top bracket 1 can be manufactured by welding a horizontal steel plate and a vertical steel plate with corresponding sizes according to the size of the steel beam needing to be jacked back, so that reliable bearing and clamping limiting of the steel beam are ensured. When the adjusting nut 201 is rotated, the top bracket 1 and the supporting section 4 cannot rotate relatively under the connection and limitation of the four adjusting screws 2, so that the rotation of the adjusting nut 201 can be converted into the linear lifting motion of the adjusting screws 2 along the axial direction through the threaded transmission, the height adjustment of the top bracket 1 is further realized, the overhanging type steel beam jacking requirements of different heights in a non-standard layer are met, and the jacking height precision and the adjusting controllability are higher.
Preferably, four balance screws 3 may be provided, eight lock nuts 301 may be provided correspondingly, and through holes for the balance screws 3 to penetrate are reserved on the bottom plate of the top bracket 1 and the top plate of the support section 4. After the balance screw 3 is penetrated between the bottom plate of the top bracket 1 and the top plate of the support section 4, the two lock nuts 301 are tightly propped against the top surface and the bottom surface of the bottom plate of the top bracket 1, and the two lock nuts 301 are tightly propped against the top surface and the bottom surface of the top plate of the support section 4, so that the reliable connection between the balance screw 3 and the bottom plate of the top bracket 1 and the top plate of the support section 4 is ensured, and the stability of supporting the steel beam back to the top is ensured.
The supporting member can be selected to be the steel structural member that is located the girder steel below, and bottom support seat 5 is fixed on the supporting member, can pass through top bracket 1, adjusting screw 2, balance screw 3, support festival 4 and bottom support seat 5 in proper order with the weight of girder steel and transmit to the supporting member on, and then transmit to the steel structure on, further guaranteed the stability to girder steel support back-to-the-roof.
Preferably, the top bracket 1, the adjusting screw 2, the balancing screw 3, the support section 4 and the bottom support base 5 are all made of high-strength steel materials to ensure the stability and safety of the support.
Referring to fig. 1 and 2, when the supporting member is a box-shaped steel beam 601, the bottom supporting seat 5 includes a first supporting plate 501 and end plates 502, the first supporting plate 501 has an inverted U-shaped structure and covers the top and two sides of the box-shaped steel beam 601, and a plurality of end plates 502 are symmetrically connected to the outer walls of the two sides of the first supporting plate 501 respectively.
The first backup pad 501 of falling U-shaped structure can match the box structure of box girder 601, prevents lateral displacement, has guaranteed the installation reliability of bottom sprag seat 5 on box girder 601. The end plate 502 may be used to increase the force bearing capacity of the first support plate 501.
Referring to fig. 1 and 2, the end plate 502 has an inverted L-shaped structure, a horizontal section of the end plate 502 is fixed on a horizontal section of the first support plate 501 and is connected and fixed with a bottom of the support section 4, and a vertical section of the end plate 502 is fixed on a vertical section of the first support plate 501.
The end plate 502 can improve the connection integrity and reliability between the bottom of the support joint 4 and the first support plate 501 simultaneously, thereby further ensuring the stability of the whole device for supporting the steel beam back to the top.
Referring to fig. 3 and 4, when the support member is an i-beam 602, the bottom support seat 5 includes a second support plate 503 and a connecting plate 504, an ear plate 603 is formed on an upper wing plate of the i-beam 602, the second support plate 503 is in a planar plate structure and is attached to the upper wing plate of the i-beam 602, one end of the connecting plate 504 is fixedly connected with the second support plate 503 and the support section 4, and the other end of the connecting plate 504 is fixedly connected with the ear plate 603.
The second support plate 503 of the planar plate structure can be attached to the upper wing plate of the i-beam 602, the contact area is large, and meanwhile, the lug 603 welded on the upper wing plate of the i-beam 602 is connected with the second support plate 503 into a whole through the connecting plate 504, so that the stability and force transmission reliability of the whole device for supporting the back roof of the steel beam are ensured.
Preferably, the ear plate 603 and the connecting plate 504 can be connected by high-strength bolts, and the connecting plate 504 and the second supporting plate 503 can be connected by welding, so that structural integrity and stability are ensured, and the bottom supporting seat 5 and the supporting member are convenient to assemble and disassemble.
Referring to fig. 1 and 3, the adjusting screws 2 are symmetrically arranged about the center of the top plate of the supporting section 4, the balancing screws 3 are symmetrically arranged about the center of the top plate of the supporting section 4, and the balancing screws 3 are arranged outside the adjusting screws 2.
The adjusting screw 2 and the balancing screw 3 are symmetrically arranged, and the whole stress is uniform.
Referring to fig. 1 and 3, a pair of reinforcing plates 401 is formed between the top plate of the support section 4 and the first support plate 501/the second support plate 502 of the bottom support seat 5, a plurality of balance screws 3 are located directly above the pair of reinforcing plates 401, and a plurality of adjusting screws 2 are located between the pair of reinforcing plates 401 and the web plate of the support section 4.
Preferably, a pair of reinforcing plates 401 are vertically welded between the top plate of the support section 4 and the first support plate 501/second support plate 502 of the bottom support seat 5, and are symmetrically arranged with respect to the web plate of the support section 4, so that the structural stability and the stress capability of the support section 4 can be improved, and the safety and the stability of the steel beam back-jacking are further ensured.
Referring to fig. 1 and 3, the top bracket 1, the support section 4 and the bottom support seat 5 are coaxially arranged to ensure stable, reliable and safe force transmission.
Referring to fig. 1 and 2, embodiment 1:
When the supporting member is a box girder 601, the first supporting plate 501 of the inverted U-shaped structure is selected, and the size of the first supporting plate 501 may be adaptively selected according to the size of the box girder 601. The bottom of the pair of reinforcing plates 401 and the bottom of the web of the support section 4 are welded to the top surface of the first support plate 501, and the height of the support section 4 can be adaptively selected according to the jack-back height.
The horizontal section of the end plate 502 is welded to the bottom of the pair of reinforcing plates 401 and the horizontal section of the first support plate 501, and the vertical section of the end plate 502 is welded to the vertical section of the first support plate 501. The first supporting plate 501 is matched and buckled on the box steel beam 601, the end plate 502 can be fixedly connected with other steel members in the steel structure through bolts, and the supporting stability of the bottom is improved.
The adjusting nut 201 is rotated, the rotation of the adjusting nut 201 is converted into the axial linear motion of the adjusting screw rod 2 by utilizing the transmission of threads, so that the top bracket 1 is driven to do linear lifting motion, the jacking height of the top bracket 1 to the steel beam can be accurately adjusted, and the top bracket 1 can stably support the steel beam.
The balance screw 3 is penetrated between the bottom plate of the top bracket 1 and the top plate of the supporting joint 4, the upper end of the balance screw 3 is screwed and abutted against the top surface and the bottom surface of the bottom plate of the top bracket 1 through double nuts, the lower end of the balance screw 3 is screwed and abutted against the top surface and the bottom surface of the top plate of the supporting joint 4 through double nuts, and the balance screw 3 is fixedly supported between the bottom plate of the top bracket 1 and the top plate of the supporting joint 4.
The bottom plate of the top bracket 1 and four corners of the top plate of the support joint 4 are respectively provided with a balance screw 3 according to the same method, so that the bearing stability of the top bracket 1 to the steel beam is further improved. The length of the balancing screw 3 and the length of the adjusting screw 2 can be adaptively selected according to the requirements of the actual adjusting range.
Referring to fig. 3 and 4, example 2:
When the support member is a steel i-beam 602, the second support plate 503 with a planar plate structure is selected, and the size of the second support plate 503 may be adaptively selected according to the size of the upper wing plate of the steel i-beam 602. The bottom of the pair of reinforcing plates 401 and the bottom of the web of the support section 4 are welded to the top surface of the second support plate 503, and the height of the support section 4 can be adaptively selected according to the jack-back height.
One end of the connecting plate 504 is welded and fixed with the bottom of the pair of reinforcing plates 401 and the top surface of the second supporting plate 503, the lug 603 is welded on the top surface of the upper wing plate of the I-beam 602, and the other end of the connecting plate 504 is screwed and fixed with the lug 603. The connecting plate 504 can be connected and fixed with other steel members in the steel structure through bolts, so that the support stability of the bottom is improved.
The adjusting nut 201 is rotated, the rotation of the adjusting nut 201 is converted into the axial linear motion of the adjusting screw rod 2 by utilizing the transmission of threads, so that the top bracket 1 is driven to do linear lifting motion, the jacking height of the top bracket 1 to the steel beam can be accurately adjusted, and the top bracket 1 can stably support the steel beam.
The balance screw 3 is penetrated between the bottom plate of the top bracket 1 and the top plate of the supporting joint 4, the upper end of the balance screw 3 is screwed and abutted against the top surface and the bottom surface of the bottom plate of the top bracket 1 through double nuts, the lower end of the balance screw 3 is screwed and abutted against the top surface and the bottom surface of the top plate of the supporting joint 4 through double nuts, and the balance screw 3 is fixedly supported between the bottom plate of the top bracket 1 and the top plate of the supporting joint 4. The length of the balancing screw 3 and the length of the adjusting screw 2 can be adaptively selected according to the requirements of the actual adjusting range.
The bottom plate of the top bracket 1 and four corners of the top plate of the support joint 4 are respectively provided with a balance screw 3 according to the same method, so that the bearing stability of the top bracket 1 to the steel beam is further improved.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. The adjustable steel beam jacking device is characterized by comprising a top bracket (1), adjusting screws (2), balancing screws (3), supporting joints (4) and a bottom supporting seat (5), wherein the top bracket (1) is of a U-shaped structure, steel beams can be placed in the top bracket (1), the lower ends of the adjusting screws (2) are respectively connected to a top plate of the supporting joints (4) in a rotatable and adjustable mode through adjusting nuts (201), the upper ends of the adjusting screws (2) are respectively and vertically connected to a bottom plate of the top bracket (1), the balancing screws (3) are respectively connected between the bottom plate of the top bracket (1) and the top plate of the supporting joints (4) through locking nuts (301), the bottom supporting seat (5) is arranged at the bottom of the supporting joints (4), and the bottom supporting seat (5) is fixed on a supporting member.
2. The adjustable steel beam jacking device according to claim 1, wherein when the supporting member is a box-shaped steel beam (601), the bottom supporting seat (5) comprises a first supporting plate (501) and end plates (502), the first supporting plate (501) is of an inverted U-shaped structure and covers the top and two sides of the box-shaped steel beam (601), and the end plates (502) are symmetrically connected to the outer walls of the two sides of the first supporting plate (501) respectively.
3. The adjustable steel beam jacking device according to claim 2, wherein the end plate (502) is of an inverted L-shaped structure, a horizontal section of the end plate (502) is fixed on a horizontal section of the first support plate (501) and is fixedly connected with the bottom of the support joint (4), and a vertical section of the end plate (502) is fixed on a vertical section of the first support plate (501).
4. The adjustable steel girder jack-back device of claim 1, wherein when the supporting component is an I-shaped steel girder (602), the bottom supporting seat (5) comprises a second supporting plate (503) and a connecting plate (504), an ear plate (603) is formed on an upper wing plate of the I-shaped steel girder (602), the second supporting plate (503) is of a planar plate-shaped structure and is attached to the upper wing plate of the I-shaped steel girder (602), one end of the connecting plate (504) is fixedly connected with the second supporting plate (503) and the supporting joint (4), and the other end of the connecting plate (504) is fixedly connected with the ear plate (603).
5. The adjustable steel beam roof returning device according to claim 4, wherein the plurality of adjusting screws (2) are symmetrically arranged around the center of the top plate of the supporting section (4), the plurality of balance screws (3) are symmetrically arranged around the center of the top plate of the supporting section (4), and the plurality of balance screws (3) are arranged outside the plurality of adjusting screws (2).
6. The adjustable steel beam jacking device according to claim 1, wherein a pair of reinforcing plates (401) is formed between the top plate and the bottom supporting seat (5) of the supporting section (4), a plurality of balance screws (3) are positioned right above the pair of reinforcing plates (401), and a plurality of adjusting screws (2) are positioned between the pair of reinforcing plates (401) and the web plate of the supporting section (4).
7. An adjustable steel girder jack-back device according to claim 1, characterized in that the top bracket (1), the support section (4) and the bottom support seat (5) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420544457.8U CN222649571U (en) | 2024-03-20 | 2024-03-20 | Adjustable steel beam return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420544457.8U CN222649571U (en) | 2024-03-20 | 2024-03-20 | Adjustable steel beam return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222649571U true CN222649571U (en) | 2025-03-21 |
Family
ID=95005092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420544457.8U Active CN222649571U (en) | 2024-03-20 | 2024-03-20 | Adjustable steel beam return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222649571U (en) |
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- 2024-03-20 CN CN202420544457.8U patent/CN222649571U/en active Active
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