Steel corbel structure for supporting beam

Abstract

The invention belongs to the technical field of support beam steel corbel construction, and discloses a steel corbel structure for a support beam, the steel corbel structure comprises an upper column root, the side surface of the upper column root is parallelly provided with a widening assembly; the widening assembly comprises a side root with the same size as the upper column root, and a steel corbel replaceable assembly is arranged on the front side of the upper column root and the front side of the side root in parallel. The replaceable steel corbel structure in the steel corbel replaceable assembly is matched with a side-by-side structure to increase the contact area of the support, improve the stability effect of the positioning support and reduce dynamic load action cracks, the cracks can be rapidly replaced, potential safety hazards caused by the cracks are avoided, and meanwhile, the production efficiency is improved. The steel corbels are assembled into a whole through different connecting modes of welding and bolting, the structure is stable, the flexibility performance in the installation process is far better than that of a traditional welded steel corbel structure, and the steel corbels can be adjusted to achieve a better supporting effect when facing different complex environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of the construction technology of supporting beam steel brackets, and specifically relates to a steel bracket structure for a supporting beam. Background Art

[0002] A steel bracket is an important load-bearing member used to support components such as beams and slabs in a building structure. It is usually made of steel and gets its name because its shape resembles a "bracket". In a steel structure workshop, it supports heavy components such as crane beams and roof beams. In a concrete structure, it serves as the connection node between the steel structure and the concrete component. The steel bracket is fixed to the main structure by means of welding, bolt connection, etc., and bears and transmits vertical loads, horizontal forces or bending moments. It is a key node for structural force transfer.

[0003] A construction method for a supporting beam with the publication number of CN111827577A includes the following steps: tying a steel bar framework with a bracket structure, measuring and setting elevation reference points on both sides of the steel bar framework; installing a first steel formwork around the steel bar framework; wrapping the bracket structures on both sides with angle steel and connecting the angle steel to the first steel formwork; measuring the elevation of the top surface of the angle steel based on the elevation reference points; adjusting the first steel formwork according to the measured elevation of the top surface of the angle steel so that the angle steels installed on each bracket structure are parallel to each other; installing a second steel formwork above the bracket structure; pouring concrete, and removing the first steel formwork and the second steel formwork after the concrete solidifies;

[0004] A foundation pit inclined rod steel support system with the publication number of CN105908750A aims to provide a foundation pit inclined rod steel support system that can pre-pressurize the foundation pit and reliably bear the earth pressure from the outside of the foundation pit, thereby effectively controlling the displacement of the foundation pit. It includes a support bracket arranged on the building floor slab and a steel inclined support beam arranged between the side of the foundation pit and the support bracket. The lower end of the steel inclined support beam abuts against the support bracket, and a pair of strut stress reserve members are arranged between the upper end and the side of the foundation pit. The pair of strut stress reserve members include two support members that can be expanded relative to each other, and one of the support members is connected to the upper end of the steel inclined support beam, and the other support member abuts against the side of the foundation pit;

[0005] In the construction process of the above-mentioned construction method for a support beam, it can be seen that relatively traditional steel corbels are used. The connection part between the traditional steel corbel structure and the main structure is prone to fatigue failure due to stress concentration, especially under dynamic loads, and the problem is more significant. Cracks of different shapes appear, and the on-site welding workload is large. There are safety hazards in high-altitude operations, and the welding quality is greatly affected by human factors. All welding designs slow down the construction progress of the steel corbel structure installation of the support beam by construction workers. In an assembled building with a slant bar steel support system for a foundation pit, the positioning accuracy requirements for the steel corbels and precast components are high, and installation errors may lead to uneven stress. Traditional steel corbels lack an energy dissipation mechanism under earthquake action and are prone to brittle failure, making it difficult to meet the requirements of high-intensity seismic fortification. Steel corbels with fixed angles cannot adapt to complex structural shapes and lack flexibility.

[0006] Therefore, in view of the above problems, a steel corbel structure for a support beam is proposed. Summary of the Invention

[0007] To solve the problems raised in the above background technology, the present invention provides a steel corbel structure for a support beam, which has a structural assembly form of welding and bolting, can be assembled according to the usage requirements of the construction site, and the bolted structure can be replaced, so that it is convenient to replace in case of stress cracks in the steel corbel, and has the advantage of improving the support stability of stress by cooperating with the auxiliary support structure.

[0008] To achieve the above object, the present invention provides the following technical solution: A steel corbel structure for a support beam, including an upper column root, and a widening component is arranged in parallel on the side surface of the upper column root;

[0009] The widening component includes a side root having the same size as the upper column root, and a steel corbel replacement component is arranged in parallel on the front sides of the upper column root and the side root;

[0010] The steel corbel replacement component includes a short steel corbel, and a corbel support component connecting the upper column root and the side root respectively is arranged below the short steel corbel. Longitudinal bars and bent-up bars are cast in the short steel corbel, where: the clear distance between longitudinal bars should be 300mm < clear distance between longitudinal bars < 50mm, the upper longitudinal bars of the upper column root and the side root should not be less than 30mm and 1.5d, the spacing of the bundled skeletons of the longitudinal bars should not be greater than 15d, and in the welded skeleton, it should not be greater than 20d. When there are more than four bundled longitudinal bars, composite stirrups are set.

[0011] Preferably, an embedded reinforcement plate that fits the groove on the surface of the upper column root is attached to the rear side of the short steel corbel, and the embedded reinforcement plate on the surface of the side root is arranged in the same way.

[0012] Preferably, a first jack is formed on the surface of the embedded reinforcement plate located on the front side of the upper column root. An insertion arm welded to the short steel corbel is inserted into the first jack, and the insertion arm penetrates through the upper column root and extends 5 cm out at the end.

[0013] Preferably, a slot is formed inside the insertion arm, and a positioning plug plate that fits on the surface of the upper column root is inserted into the slot. A first long screw rod penetrates through the bottom end of the positioning plug plate in a spiral manner. The outer side of the first long screw rod penetrates through a positioning plate that fits on the positioning plug plate and is located at the included angle between the upper column root and the insertion arm. The triangular end of the positioning plug plate and the positioning plate are both made of materials convenient for welding, and are welded and fixed after installation.

[0014] Preferably, positioning grooves are formed around the protruding end of the insertion arm, and a limiting shaft is inserted into each positioning groove. A second long screw rod that spirals with the insertion arm penetrates through the limiting shaft, and a first gasket that abuts against the limiting shaft is sleeved on the outer side of the second long screw rod.

[0015] Preferably, mounting grooves are formed at the four corners of the embedded reinforcement plate. A first sleeve fixed to the upper column root is inserted into the mounting groove of the embedded reinforcement plate. A third long screw rod is spiraled inside the first sleeve, and a second gasket that fits on the surface of the first sleeve is sleeved on the outer side of the third long screw rod.

[0016] Preferably, a second jack is formed on the side surface of the side root, and a second sleeve fixed to the upper column root is inserted into the second jack. A fourth long screw rod is fixed inside the second sleeve, and a fastening nut that fits on the surface of the side root is spiraled on the outer side of the fourth long screw rod. A third gasket that fits on the second sleeve is sleeved on the outer side of the fastening nut.

[0017] Preferably, the corbel support assembly includes a fixing block fixed to the upper column root or the side root. A rotating arm is rotatably arranged inside the fixing block. A guiding cylinder is fixed to the top of the rotating arm. A telescopic shaft is arranged inside the guiding cylinder. A supporting block that slides with the guiding cylinder is fixed to the top end of the telescopic shaft. A spring that fits on the supporting block is sleeved on the outer side of the telescopic shaft. A supporting plate that fits on the short steel corbel is fixed to the top end of the supporting block.

[0018] Preferably, a first cross plate is fixed below the outer side of the supporting block. A fifth long screw rod penetrates through the first cross plate in a spiral manner. A second cross plate is rotatably arranged at the other end of the fifth long screw rod. An inclined plane frame that fits on the inclined plane of the short steel corbel is fixed to the top end of the second cross plate.

[0019] Preferably, the corbel longitudinal reinforcement and the bent-up bars are arranged separately. The diameter of the horizontal stirrups should be between 6 mm and 12 mm. The intersection of the connecting line between the load application point of the bent-up bars and the lower end point of the corbel hypotenuse is located in the upper part of the corbel, and there should be no less than two bars.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, the replaceable steel corbel structure in the steel corbel replacement component is used, and the support contact area is increased by the side-by-side structure, so as to improve the stable effect of positioning support, reduce the cracks caused by dynamic load, and the cracked corbel can be quickly replaced to avoid the potential safety hazards caused by cracks. At the same time, through different connection methods of welding and bolting, the steel corbels are assembled into an integral whole, which not only has a stable structure, but also has a much more flexible performance during the installation process than the traditional welded steel corbel structure. Moreover, it can be adjusted to achieve a better support effect in the face of different complex environments.

[0022] 2. By adding the embedded reinforcement plate structure, the present invention can be used as an intermediate node for connecting the upper column root and the short steel corbel structure inside the main structure, providing a support point during the replacement process. At the same time, it also avoids the problem that the upper column root is difficult to repair caused by stress damage, and forms a reinforced structure between the upper column root and the short steel corbel to avoid the stress concentration problem caused by direct bolting.

[0023] 3. By widening the side root structure in the component that matches the upper column root, when there is a risk of poor support and easy fracture between the steel corbel and the upper column root, the side root can be installed on one side of the upper column root to provide the same support structure as the short steel corbel structure for support, reducing the stress between the short steel corbel and the upper column root.

[0024] 4. By using the support block and support plate structures in the corbel support component, a support structure can be formed under the short steel corbel. When an earthquake strikes, it can provide a buffering effect, and in the case of relatively strong vibrations, it can improve the seismic resistance of the short steel corbel, so as to avoid brittle failure during an earthquake and meet the requirements of high-intensity seismic fortification. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the installation structure of the widening component of the present invention;

[0027] Figure 3 is a schematic diagram of the splicing and installation structure of the upper column root and the side root of the present invention;

[0028] Figure 4Schematic diagram of the rear view installation structure of the upper column root and side roots of the present invention;

[0029] Figure 5 Schematic diagram of the installation structure of Sleeve 1 of the present invention;

[0030] Figure 6 Enlarged schematic diagram of the installation structure of Long Screw 3 of the present invention;

[0031] Figure 7 Enlarged schematic diagram of the installation structure of the Limit Shaft of the present invention;

[0032] Figure 8 Exploded schematic diagram of the installation structure of the Positioning Insert Plate and Positioning Foot of the present invention;

[0033] Figure 9 Exploded schematic diagram of the installation structure of Sleeve 2 and Fastening Nut of the present invention;

[0034] Figure 10 Schematic diagram of the installation structure of the Bracket Support Assembly of the present invention;

[0035] Figure 11 Partial sectional view schematic diagram of the Guide Tube of the present invention.

[0036] In the figure: 1. Upper column root;

[0037] 2. Steel bracket replacement type assembly; 21. Embedded reinforcement plate; 22. Short steel bracket; 23. Insertion arm; 24. Jack 1; 25. Slot; 26. Positioning insert plate; 27. Positioning foot; 28. Long screw 1; 29. Positioning groove; 210. Limit shaft; 211. Long screw 2; 212. Washer 1; 213. Sleeve 1; 214. Long screw 3; 215. Washer 2;

[0038] 3. Widening assembly; 31. Side root; 32. Jack 2; 33. Sleeve 2; 34. Long screw 4; 35. Washer 3; 36. Fastening nut;

[0039] 4. Bracket support assembly; 41. Fixed block; 42. Rotating arm; 43. Guide tube; 44. Telescopic shaft; 45. Support block; 46. Spring; 47. Support plate; 48. Cross plate 1; 49. Long screw 5; 410. Cross plate 2; 411. Inclined plane frame.

[0040] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0042] It should be noted that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. Additionally, when combining an embodiment to describe a specific feature, structure or characteristic, implementing such a feature, structure or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge scope of those skilled in the relevant art.

[0043] As Figures 1 to 11 shown, the present invention provides a steel bracket structure for a supporting beam, including an upper column root 1, and a widening component 3 is arranged in parallel on the side of the upper column root 1;

[0044] The widening component 3 includes a side root 31 having the same size as the upper column root 1. The side root 31 and the upper column root 1 are arranged side by side to form an integral body, which can strengthen the size of the upper column root 1 to bear a large-weight structure. A steel bracket replacement component 2 is arranged in parallel on the front side of the upper column root 1 and the front side of the side root 31;

[0045] The steel bracket replacement component 2 includes a short steel bracket 22. Below the short steel bracket 22, there is a bracket support component 4 connected to the upper column root 1 and the side root 31 respectively. The interior of the short steel bracket 22 is cast with longitudinal bars and bent-up bars. The design of the longitudinal bars and the bent-up bars is formed by casting with the short steel bracket 22 to strengthen the structural strength. Among them: the clear distance between longitudinal bars should be 300mm < clear distance between longitudinal bars < 50mm, the upper longitudinal bars of the upper column root 1 and the side root 31 should not be < 30mm and 1.5d, the spacing of the bundled skeletons of the longitudinal bars should not be greater than 15d to strengthen the tightness of the connection, and in the welded skeleton, it should not be greater than 20d. And when there are more than four bundled longitudinal bars, they are set as composite stirrups. Fabricating and forming with steel bars of the above dimensions can meet the design standards for the support of the short steel bracket 22.

[0046] Specifically, an embedded reinforcement plate 21 that fits the surface groove of the upper column root 1 is attached to the rear side of the short steel bracket 22, and the embedded reinforcement plate 21 located on the surface of the side root 31 is arranged in the same way. Both ends of the embedded reinforcement plate 21 are set to be inclined, and are flush with the upper column root 1 at the end, so as to make the installation of the embedded reinforcement plate 21 more stable and reduce the problem of reduced structural stability caused by planar installation.

[0047] On the surface of the embedded reinforcement plate 21 located on the front side of the upper column root 1, there is a first jack 24. An insertion arm 23 welded to the short steel corbel 22 is inserted into the first jack 24. The insertion arm 23 penetrates through the upper column root 1 and extends 5 cm beyond the end. The structure of the short steel corbel 22 can enter and exit the first jack 24 through the insertion arm 23 and enter the inside of the upper column 1 for plugging and positioning. The installation is convenient, and the connection between the upper column root 1 and the short steel corbel 22 is stable.

[0048] A slot 25 is provided inside the insertion arm 23. A positioning plug plate 26 attached to the surface of the upper column root 1 is inserted into the slot 25 of the insertion arm 23. The positioning plug plate 26 is inserted into the slot 25 of the insertion arm 23 to position the insertion arm 23, fix the insertion arm 23 inside the upper column root 1, and tighten and restrain the short steel corbel 22 on the side of the upper column root 1. The bottom end of the positioning plug plate 26 is screwed with a first long screw 28. A positioning foot 27 that fits the positioning plug plate 26 penetrates through the outside of the first long screw 28. The first long screw 28 is inserted into the positioning foot 27, and the positioning foot 27 is tightened and fixed at the bottom of the positioning plug plate 26 to form a locking structure to limit the insertion arm 23. It is located at the included angle between the upper column root 1 and the insertion arm 23 for clamping and positioning. The triangular end of the positioning plug plate 26 and the positioning foot 27 are made of materials convenient for welding and are welded and fixed after installation. By welding, the structures of the positioning foot 27 and the positioning plug plate 26 are fixed at the included angle between the insertion arm 23 and the upper column root 1 for positioning.

[0049] Positioning grooves 29 are provided around the protruding end of the insertion arm 23. A limiting shaft 210 is inserted into the positioning grooves 29. The square structure design of the limiting shaft 210 can maintain stability when inserted into the positioning grooves 29, avoid rotation during the subsequent installation of the second long screw 211 structure, and at the same time, can closely adhere to the side of the upper column root 1 to maintain the stability of the connection and tightening, making the subsequent welding construction operation more convenient. A second long screw 211 screwed with the insertion arm 23 penetrates through the limiting shaft 210. A first gasket 212 that abuts against the limiting shaft 210 is sleeved on the outside of the second long screw 211. The installation of the second long screw 211 is positioned through the gasket 212.

[0050] Installation grooves are provided at the four corners of the embedded reinforcement plate 21. A first sleeve 213 fixed to the upper column root 1 is inserted into the installation grooves of the embedded reinforcement plate 21. A third long screw 214 is screwed inside the first sleeve 213. A second gasket 215 that fits the surface of the first sleeve 213 is sleeved on the outside of the third long screw 214. After the second gasket 215 is placed on the outside of the third long screw 214 for plugging and positioning, the third long screw 214 is installed into the first sleeve 213 for positioning.

[0051] There is a socket two 32 on the side of the lateral root 31. Inside the socket two 32, there is a socket and plug connection with a sleeve two 33 fixed to the upper column root 1. Inside the sleeve two 33, there is a long screw four 34 fixed. After inserting the long screw four 34 into the sleeve two 33 and positioning it, it can be clamped. On the outer side of the long screw four 34, there is a fastening nut 36 that fits the surface of the lateral root 31. The gasket three 35 is pressed against the side of the lateral root 31 using the fastening nut 36 to complete the limit. On the outer side of the fastening nut 36, there is a gasket three 35 that fits the sleeve two 33. The structure of the gasket three 35 can avoid damaging the structure of the lateral root 31.

[0052] The bracket support assembly 4 includes a fixing block 41 fixed to the upper column root 1 or the lateral root 31. Inside the fixing block 41, there is a rotating arm 42 rotatably arranged. At the top of the rotating arm 42, there is a guiding cylinder 43 fixed. The guiding cylinder 43 is rotated to the lower part of the short steel bracket 22 structure through the rotating arm 42 to support it. Inside the guiding cylinder 43, there is a telescopic shaft 44. And due to the structural design of the telescopic shaft 44, the supporting effect on the upper short steel bracket 22 can be maintained. At the top end of the telescopic shaft 44, there is a supporting block 45 that slides with the guiding cylinder 43. On the outer side of the telescopic shaft 44, there is a spring 46 that fits the supporting block 45. At the top end of the supporting block 45, there is a supporting plate 47 that fits the short steel bracket 22. The structure of the spring 46 can push the telescopic shaft 44 to expand, and the supporting block 45 and the supporting plate 47 are pressed against the lower part of the short steel bracket 22 to provide earthquake resistance effect during an earthquake and weaken the continuous vibration and damage to the short steel bracket 22.

[0053] Below the outer side of the supporting block 45, there is a horizontal plate one 48 fixed. Inside the horizontal plate one 48, there is a long screw five 49 spirally penetrating. At the other end of the long screw five 49, there is a horizontal plate two 410 rotatably arranged. At the top end of the horizontal plate two 410, there is an inclined plane frame 411 that fits the inclined plane of the short steel bracket 22. After inserting the long screw five 49 structure into the horizontal plate two 410 and rotating the long screw five 49 structure, the upper horizontal plate two 410 can be pushed to press the inclined plane frame 411 against the side of the short steel bracket 22 for quick positioning and increase the additional protection effect.

[0054] The bracket longitudinal bars and the bent-up bars are arranged separately. The selected horizontal stirrups should be between 6mm and 12mm. The intersection point of the connection line from the load application point of the bent-up bar to the lower end point of the inclined side of the bracket is located above the bracket, and there should be no less than two, ensuring that the structure of the produced short steel bracket 22 meets the usage standards.

[0055] The working principle of the technical solution provided by the present invention:

[0056] Quick installation and reinforcement of the replaceable component 2 of the steel corbel. The embedded reinforcement plate 21 is fixed to the upper column root 1 and the side root 31 through the sleeve 1 213 and the long screw 3 214. The embedded reinforcement plate 21 is installed on the outside of the sleeve 1 213, and the long screw 3 214 sleeved with the spacer 2 215 is inserted into the sleeve 1 213 and tightened to form a basic support surface. The insertion arm 23 welded to the short steel corbel 22 is inserted into the jack 1 24 of the upper column root 1. After the insertion arm 23 passes through the hole of the upper column root 1, the end part protrudes to achieve preliminary positioning. The positioning insertion plate 26 is inserted into the slot 25 of the insertion arm 23, and the short steel corbel 22 and the upper column root 1 are clamped and fixed through the long screw 1 28 and the positioning foot 27, and then the connection stiffness is further enhanced by welding. And the limit shaft 210 is inserted into the positioning groove 29 on the side of the insertion arm 23 and tightened for positioning, and the transverse displacement of the insertion arm 23 is restricted by the long screw 2 211 and the spacer 1 212 to ensure the stable horizontal force of the corbel. The connection in the way of welding and bolting can maintain the stability of positioning and can be assembled and used flexibly.

[0057] During the construction of the support beam with large weight, the side root 31 is sleeved on the outside of the sleeve 2 33 of the upper column root 1 through the jack 2 32 for primary positioning, and the long screw 4 34 and the fastening nut 36 are tightened for positioning to reinforce the side root 31 and stably install it on the surface of the upper column root 1 in a parallel setting. If no secondary construction is required subsequently, the upper column root 1 and the side root 31 can be directly welded and positioned together to maintain stability and achieve cross-section widening. This design can be used in the reinforcement scenario when the bearing capacity of the original structure is insufficient. By increasing the support width to disperse the load, local stress concentration of the upper column root 1 is avoided. The fixing block 41 is fixed to the upper column root 1 and the side root 31, and the rotating arm 42 can rotate around the fixing block 41 to adapt to the angle adjustment of the short steel corbel 22. The telescopic shaft 44 in the guide cylinder 43 provides elastic support through the spring 46. When the short steel corbel 22 bears the load, the spring 46 compresses to absorb the vibration energy and reduce the rigid impact. The inclined plane frame 411 adjusts the height through the long screw 5 49 to fit the inclined plane of the short steel corbel 22, and cooperates with the cross plate 1 48 and the cross plate 2 410 to form a triangular support structure to enhance the bearing capacity in the vertical direction.

[0058] Modular replacement and quick installation. The short steel corbel 22 realizes quick disassembly and replacement through the combination of "insertion arm + positioning insertion plate + bolt", without overall welding, shortening the construction period, and is suitable for the corbel maintenance or upgrade scenarios of structures such as bridges and factories. Adjustable widening and adaptive support. The widening component 3 adjusts the distance between the side roots 31 through bolts to flexibly adapt to different reinforcement requirements. The elastic support and angle adjustable design of the corbel support component 4 can dynamically adapt to the load change and structural deformation and improve the seismic performance.

[0059] Multi-limit and anti-drop design. The protruding end of the insertion arm 23 is restricted from lateral displacement by the limit shaft 210 and the positioning groove 29, and the positioning insertion plate 26 is combined with the welding process to prevent longitudinal dropping, forming a three-dimensional limit system to ensure connection reliability. The steel bar structure is optimized. The clear distance between longitudinal bars, the position of bent-up bars, and the stirrup configuration in the short steel corbel 22 comply with the specifications, such as the clear distance between longitudinal bars being 50 - 300 mm, and the bent-up bars covering the load application points, improving the shear and flexural resistance of the corbel and avoiding concrete cracking.

[0060] It can be used for the reinforcement of existing buildings: the disease repair of steel corbels in structures such as railway bridges and industrial factories, such as fatigue cracks and corrosion; flexible design for new projects: adapting to the support requirements of beam bodies with different spans, especially suitable for complex structures such as curved bridges and variable-section columns. The construction efficiency of the steel corbels supporting the beams is improved: modular installation reduces on-site welding work, and the construction efficiency is increased by more than 30%; the cost is reduced: the replaceable component design avoids the demolition of the main structure and saves the reinforcement cost; the safety is enhanced: the elastic support and multi-limit design improve the wind and earthquake resistance of the structure and extend the service life.

[0061] When welding the positioning insertion plate 26 and the positioning foot 27, the heat input needs to be controlled to avoid overheating and deformation of the short steel corbel 22; control of bolt pre-tightening force: long screws such as 28, 34, and 49 need to be tightened according to the design torque to ensure uniform connection stiffness; calculate the stiffness and compression amount of the spring 46 according to the expected load to avoid over-deformation and failure. Through the cooperation of the above components and structural innovation, this steel corbel solution has achieved a technical breakthrough of "quick replacement, adjustable support, and multiple protections", and has both engineering practicability and safety.

[0062] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Steel bracket structure for supporting beam, including upper column root (1), characterized in that: A widening component (3) is arranged in parallel on the side surface of the upper column root (1); The widening component (3) includes a side root (31) having the same size as the upper column root (1). A steel corbel replacement component (2) is arranged in parallel on the front side of the upper column root (1) and the front side of the side root (31); The steel corbel replacement component (2) includes a short steel corbel (22). A corbel support component (4) connected to the upper column root (1) and the side root (31) respectively is arranged below the short steel corbel (22). Longitudinal bars and bent-up bars are cast inside the short steel corbel (22). Among them: the clear distance between longitudinal bars should satisfy 300mm < clear distance between longitudinal bars < 50mm, the upper longitudinal bars of the upper column root (1) and the side root (31) should not be less than 30mm and 1.5d, the spacing of the bundled skeletons of the longitudinal bars should not be greater than 15d, and in the welded skeleton, it should not be greater than 20d. When there are more than four bundled longitudinal bars, composite stirrups are set.

2. The steel bracket structure for supporting a beam according to claim 1, wherein: An embedded reinforcement plate (21) that fits the surface groove of the upper column root (1) is attached to the rear side of the short steel corbel (22), and the embedded reinforcement plate (21) located on the surface of the side root (31) is arranged in the same way.

3. The steel bracket structure for supporting a beam according to claim 1, wherein: A jack one (24) is opened on the surface of the embedded reinforcement plate (21) located on the front side of the upper column root (1). An insertion arm (23) welded to the short steel corbel (22) is inserted into the jack one (24), and the insertion arm (23) penetrates through the upper column root (1) and extends out 5 cm at the end.

4. The steel bracket structure for supporting beams according to claim 3, characterized in that: A slot (25) is opened inside the insertion arm (23). A positioning plug plate (26) that fits the surface of the upper column root (1) is inserted into the slot (25). A long screw one (28) is screwed through the bottom end of the positioning plug plate (26). A positioning foot (27) that fits the positioning plug plate (26) penetrates through the outside of the long screw one (28) and is located at the included angle between the upper column root (1) and the insertion arm (23). The triangular end of the positioning plug plate (26) and the positioning foot (27) are both made of materials convenient for welding and are welded and fixed after installation.

5. The steel bracket structure for supporting a beam according to claim 3, wherein: Positioning grooves (29) are opened around the extending end of the insertion arm (23). A limiting shaft (210) is inserted into the positioning grooves (29). A long screw two (211) screwed to the insertion arm (23) penetrates through the inside of the limiting shaft (210). A gasket one (212) that abuts against the limiting shaft (210) is sleeved on the outside of the long screw two (211).

6. The steel bracket structure for supporting beam according to claim 2, wherein: Installation grooves are opened at the four corners of the embedded reinforcement plate (21). A sleeve one (213) fixed to the upper column root (1) is inserted into the installation grooves of the embedded reinforcement plate (21). A long screw three (214) is screwed into the sleeve one (213). A gasket two (215) that fits the surface of the sleeve one (213) is sleeved on the outside of the long screw three (214).

7. The steel bracket structure for supporting a beam according to claim 1, wherein: A socket two (32) is provided on the side surface of the lateral root (31). A sleeve two (33) fixed to the upper column root (1) is inserted into the socket two (32). A long screw four (34) is fixedly provided inside the sleeve two (33). A fastening nut (36) that fits the surface of the lateral root (31) is spirally provided on the outer side of the long screw four (34). A gasket three (35) that fits the sleeve two (33) is sleeved on the outer side of the fastening nut (36).

8. The steel corbel structure for supporting a beam according to claim 1, wherein: The bracket support assembly (4) includes a fixed block (41) fixed to the upper column root (1) or the lateral root (31). A rotating arm (42) is rotatably provided inside the fixed block (41). A guide cylinder (43) is fixedly provided at the top of the rotating arm (42). A telescopic shaft (44) is provided inside the guide cylinder (43). A support block (45) that slides with the guide cylinder (43) is fixedly provided at the top end of the telescopic shaft (44). A spring (46) that fits the support block (45) is sleeved on the outer side of the telescopic shaft (44). A support plate (47) that fits the short steel bracket (22) is fixedly provided at the top end of the support block (45).

9. The steel bracket structure for supporting beams according to claim 8, wherein: A horizontal plate one (48) is fixedly provided below the outer side of the support block (45). A long screw five (49) is spirally penetrated through the horizontal plate one (48). A horizontal plate two (410) is rotatably provided at the other end of the long screw five (49). An inclined plane frame (411) that fits the inclined plane of the short steel bracket (22) is fixedly provided at the top end of the horizontal plate two (410).

10. The steel bracket structure for supporting a beam according to claim 1, characterized in that: The bracket longitudinal bars and the bent-up bars are arranged separately. The selected horizontal stirrups should be between 6 mm and 12 mm. The intersection point of the line connecting the load application point of the bent-up bar to the lower end point of the inclined side of the bracket is located at the upper part of the bracket, and there should be no less than two bars.

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