Combined beam hoisting bracket support device

Abstract

The utility model provides a kind of combined beam hoisting bracket support device, it is related to combined beam construction technology field, including multiple bracket pieces being set in the end of adjacent to be butt-jointed combined beam, bracket piece is laid along the width direction of combined beam, each bracket piece includes support cross bar, multiple support plates are fixedly arranged in the side of support cross bar close to rear end, the bottom of combined beam is fixed with fixed seat by high-strength bolt, support cross bar and fixed seat are also detachably connected by high-strength bolt, the rear end of support cross bar is provided with lock slot, lock slot includes inclined slot and horizontal slot, inclined slot and horizontal slot are mutually communicated and arranged;Lock bar is fixedly connected at the bottom of combined beam, lock bar is U-shaped and is used to be from inclined slot to horizontal slot and form locking to slide;Support plate is fixedly arranged at the front end position of support cross bar.The utility model can be under the premise of not relying on traditional temporary support system, realize steel and concrete superimposed beam section efficient, stable hoisting butt joint, to improve construction efficiency, reduce safety risk.

Description

Technical Field

[0001] This utility model relates to the field of composite beam construction technology, and more specifically, to a composite beam hoisting bracket support device. Background Technology

[0002] Steel-concrete composite beams (or simply steel-concrete composite beams or composite beams) are a type of composite load-bearing component in bridge structures, combining the high strength of steel structures with the integrity of concrete structures. They are widely used in bridge construction projects spanning existing roads, railways, and other important passages. In the construction of steel-concrete composite beams, the traditional construction method typically involves first erecting a temporary support system and then hoisting the segments. While this method possesses a certain degree of structural stability, it suffers from the following technical problems:

[0003] First, temporary support systems require high foundation bearing capacity, especially in areas with weak foundations or complex geological conditions, often necessitating foundation reinforcement, which prolongs the construction preparation period and increases construction costs. Second, temporary support systems consume large quantities of materials, have complex structures, and involve cumbersome installation and dismantling procedures, occupying significant construction resources and further increasing the construction period and economic costs.

[0004] Furthermore, when steel-concrete composite beams cross existing national highways and other busy road sections, traditional support systems are susceptible to collisions with passing vehicles, posing significant safety hazards. An impact could lead to structural instability or collapse, seriously threatening the safety of construction workers and drivers. Therefore, in such sensitive sections, to mitigate safety risks, a construction method has gradually emerged that does not rely on temporary support systems and directly uses cranes to lift and connect the composite beams segment by segment.

[0005] However, without the constraints of supports, directly hoisting and connecting segments of steel-concrete composite beams presents the challenge of ensuring the accuracy of beam segment connections. The lack of effective temporary stabilizing support measures can lead to misalignment between adjacent beam segments during splicing, affecting the overall structural alignment and safety performance, and even inducing displacement instability or connection failure during hoisting, posing significant construction risks and structural hazards. Utility Model Content

[0006] The purpose of this utility model is to provide a composite beam hoisting bracket support device, which can achieve efficient and stable hoisting and docking of steel-concrete composite beam segments without relying on traditional temporary support systems, thereby improving construction efficiency and reducing safety risks.

[0007] This utility model is achieved through the following technical solution:

[0008] A composite beam hoisting bracket support device includes multiple bracket members disposed at the ends of adjacent composite beams to be connected. The bracket members are arranged along the width direction of the composite beam, and each bracket member includes:

[0009] A support crossbar is provided, and multiple support plates are fixedly installed on the side of the support crossbar near the rear end. The bottom of the composite beam is fixed with a fixing seat by high-strength bolts. The support crossbar and the fixing seat are also detachably connected by high-strength bolts. A locking groove is provided at the rear end of the support crossbar. The locking groove includes an inclined groove and a horizontal groove, and the inclined groove and the horizontal groove are interconnected.

[0010] A locking rod, which is fixedly connected to the bottom of the composite beam, is U-shaped and is used to slide from the inclined groove into the transverse groove to form a lock;

[0011] The support plate is fixedly installed at the front end of the support crossbar.

[0012] Furthermore, the rear end of the support crossbar near the top is provided with a chamfer to avoid obstruction.

[0013] Furthermore, a reinforcing rib is provided between the support plate and the supporting crossbar;

[0014] And / or, a reinforcing rib is also provided between the support plate and the support crossbar.

[0015] Furthermore, the fixing base includes a base and side plates fixedly disposed on both sides of the base. The space between the two side plates is used for the support crossbar to be inserted. High-strength bolts on the fixing base pass through the two side plates to lock the support crossbar.

[0016] Furthermore, the locking rod is fixedly connected to the base plate, and the base plate is also fixedly connected to the bottom wall of the composite beam by high-strength bolts.

[0017] Furthermore, a locking hook is fixedly welded to the top wall of the supporting crossbar, and the locking hook is used to hook onto the end wall of the composite beam.

[0018] Furthermore, the bottom wall of the supporting crossbar is provided with a vertical bar and a diagonal bar, and the vertical bar, the diagonal bar and the supporting crossbar together form a right-angled triangle structure.

[0019] Furthermore, the vertical rod and the supporting horizontal rod are detachably and slidably connected at the rear end of the bottom wall by a locking block. The bottom of the vertical rod is provided with a notch, and the front end of the supporting horizontal rod is fixedly provided with a sleeve. One end of the diagonal rod is inserted into the sleeve, and the other end is locked into the notch. The diagonal rod and the vertical rod are fixedly connected by high-strength bolts.

[0020] Furthermore, a plug rod is fixedly arranged horizontally inside the sleeve, and a corresponding insertion groove is opened on the inclined rod, the insertion groove and the plug rod being inserted into each other.

[0021] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0022] 1. This utility model utilizes multiple brackets installed at the ends of adjacent composite beams to be joined. These brackets are detachably connected to the supporting crossbars and pre-installed fixed seats at the bottom of the composite beams via high-strength bolts, achieving efficient temporary support and stable positioning of beam segments during hoisting. Because this structure can independently form a load-bearing support system at the ends of the composite beams, it eliminates the need for traditional large-scale temporary support systems during hoisting, significantly simplifying the on-site support erection process and improving overall construction efficiency.

[0023] The bracket assembly structure boasts excellent adaptability and reusability, reducing the risks of high-altitude operations during construction and effectively improving operational safety during the hoisting phase. Especially in bridge construction with high piers and long spans where temporary supports are inconvenient to install, this device enables rapid connection and positioning of composite beam segments, ensuring accurate segment positioning and reliable connection. The locking groove structure at the rear end of the support crossbar, combined with the locking rod at the bottom of the composite beam, forms a mechanical locking mechanism, effectively restricting movement both horizontally and vertically to prevent instability caused by swaying or misalignment during beam segment hoisting. The overall structure is easy to assemble and disassemble, provides stable load-bearing capacity, and facilitates both installation and subsequent adjustments. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of a combined beam hoisting bracket support device provided by this utility model;

[0025] Figure 2 This utility model aims to show a partial structural schematic diagram of the composite beam hoisting bracket support device installed on the beam end;

[0026] Figure 3 This utility model is intended to separately demonstrate the structural schematic diagram of the composite beam hoisting bracket support device;

[0027] Figure 4 This utility model is intended to show the structural diagram of the insertion rod and the locking block;

[0028] Attached reference numerals: 1-Coupling, 11-Support crossbar, 111-Locking groove, 1111-Angled groove, 1112-Horizontal groove, 112-Beveling chamfer, 113-Collector, 1131-Insertion rod, 114-Locking block, 2-Support plate, 3-Fixing seat, 31-Base, 32-Side plate, 4-Locking rod, 41-Bottom plate, 5-Support plate, 6-Reinforcing rib, 7-Locking hook, 8-Vertical rod, 80-Notch groove, 801-Slot, 81-Angled rod, 811-Insertion groove, 9-High-strength bolt, D-Existing road. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] The following is for reference Figures 1-4 As shown in the illustration, and further explained with reference to specific embodiments, this embodiment provides a composite beam hoisting bracket support device, including multiple bracket components 1 arranged along the width direction of the composite beam. Each bracket component 1 has an independent structure and can be flexibly arranged according to hoisting requirements. It should be emphasized that, in order to avoid structural interference between bracket components 1 on adjacent composite beam segments during the approach process, each group of bracket components 1 needs to be staggered during installation, that is, staggered from each other, thereby ensuring spatial compatibility and overall operational stability during the hoisting process.

[0032] Each bracket 1 comprises three core components: a support crossbar 11, a locking rod 4, and a support plate 5. The support crossbar 11 serves as the main load-bearing structure, with multiple support plates 2 welded to its rear end. The support plates 2 establish a vertical force-bearing channel between the support crossbar 11 and the beam. A fixing seat 3 matching the support crossbar 11 is pre-installed at the bottom of the composite beam. The fixing seat 3 is connected to the beam body via high-strength bolts 9 and is detachably connected to the support crossbar 11, facilitating rapid assembly and disassembly and reuse of the device on the construction site.

[0033] The rear end of the supporting crossbar 11 is provided with a locking groove 111 structure, which is composed of an inclined groove 1111 and a horizontal groove 1112 that are interconnected, and is used to cooperate with the locking rod 4 to achieve quick locking. The locking rod 4 is a U-shaped component, fixed to the bottom of the composite beam. Its free end can slide into the inclined groove 1111 of the supporting crossbar 11 and lock into the horizontal groove 1112, so as to realize the rapid insertion and stable locking of the supporting crossbar 11 in the hoisting state, effectively preventing the beam segment from shifting or swaying during the stress process.

[0034] Furthermore, to facilitate the smooth completion of the locking action, a chamfer 112 is provided on the rear end of the support crossbar 11 near the top. By optimizing the geometry of this part, the locking rod 4 does not get stuck during its oblique sliding into the locking groove 111, improving the smoothness and reliability of the locking process. To further enhance the load-bearing capacity and deformation resistance, reinforcing ribs 6 are welded between the support crossbar 11 and the support plate 5, and between the support crossbar 11 and the support plate 2. The reinforcing ribs 6 adopt a welded steel plate structure, which enhances the local strength of the nodes and the stability of the overall structure by constructing a triangular rigid support system.

[0035] The support plate 5 is flat and located at the front end of the support crossbar 11. It is used to support the bottom structure of the composite beam, so that the hoisting load can be transmitted to the support system more evenly and improve the overall stress coordination of the device.

[0036] Reference Figure 2 and Figure 3 As shown, to achieve rapid positioning, stable support, and structural self-locking of the composite beam segments during hoisting, the structural details of the composite beam hoisting bracket support device have been further optimized. The fixed seat 3 is used to establish a stable connection with the bottom of the composite beam. Its structure includes a base 31 and side plates 32 welded to both sides of the base 31. A limiting cavity is formed between the two side plates 32 to accommodate the support crossbar 11. After the support crossbar 11 is inserted into the limiting cavity, it can be reliably locked by high-strength bolts 9 inserted from both side plates 32, effectively preventing the crossbar from slipping or loosening due to lateral forces during hoisting, further enhancing the connection stability and load-bearing safety during the hoisting stage.

[0037] To facilitate a simpler and more reliable operation of the locking rod 4 and the locking groove 111, the locking rod 4 is fixedly connected to an independently installed base plate 41. The base plate 41 is then fastened to the bottom wall of the composite beam using high-strength bolts 9. This structural layout not only facilitates the independent adjustment of the locking rod 4's position but also helps control the assembly tolerance between the locking rod 4 and the supporting crossbar 11, ensuring the accuracy of the locking action. The supporting crossbar 11 is equipped with a locking hook 7 structure, which is welded to the top wall of the crossbar and extends towards the end of the composite beam. During hoisting, it can engage or hook with the end wall of the composite beam, thereby providing an additional set of longitudinal constraint channels and enhancing the shear stability and overall support effect of the supporting crossbar 11 on the beam.

[0038] Furthermore, to enhance the structural support capacity and create a reasonable force transmission path, vertical rods 8 and diagonal rods 81 are detachably installed on the bottom wall of the supporting horizontal rod 11. These two rods, together with the supporting horizontal rod 11, form a triangular support structure, effectively increasing the overall rigidity and deformation resistance of the support device. The vertical rod 8 is detachably engaged with the bottom wall of the rear end of the supporting horizontal rod 11 via a locking block 114 structure, facilitating rapid assembly and disassembly during transportation, installation, and maintenance.

[0039] Specifically, a slot 801 is provided on the top side of the vertical rod 8 away from the diagonal rod 81. The slot 801 adopts a dovetail shape or other anti-disengagement cross-section structure, and is not continuous on the side near the diagonal rod 81 to enhance the locking force after assembly. A notch 80 is provided at the bottom of the vertical rod 8 to form a plug-in fit with the diagonal rod 81. To achieve rapid assembly, a retaining sleeve 113 is welded to the bottom wall of the front end of the supporting crossbar 11. One end of the diagonal rod 81 is inserted into the retaining sleeve 113, and the other end is locked into the notch 80 at the bottom of the vertical rod 8. At the same time, a rigid fixed connection between the diagonal rod 81 and the vertical rod 8 is achieved by high-strength bolts 9. This design not only improves the connection strength, but also ensures that the diagonal rod 81 will not slip or loosen under stress.

[0040] Furthermore, to enhance the reliability of the connection between the diagonal brace 81 and the sleeve 113, a transversely welded insertion rod 1131 is fixed inside the sleeve 113, and a corresponding insertion slot 811 is provided on the diagonal brace 81. The two are connected by insertion, which significantly improves the local connection strength and tensile stability while ensuring convenient insertion. Overall, this design structurally achieves a continuous force transmission chain from the composite beam to the base 31 and then to the support system, ensuring that the composite beam segments have good anti-overturning capacity, positioning accuracy, and connection safety during hoisting.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A composite beam hoisting bracket support device, characterized in that, The system includes multiple bracket members (1) disposed at the ends of adjacent composite beams to be joined. The bracket members (1) are arranged along the width direction of the composite beams, and each bracket member (1) includes: A support crossbar (11) is provided with multiple support plates (2) fixed on one side near the rear end of the support crossbar (11). The bottom of the composite beam is fixed with a fixing seat (3) by high-strength bolts (9). The support crossbar (11) and the fixing seat (3) are also detachably connected by high-strength bolts (9). A locking groove (111) is provided at the rear end of the support crossbar (11). The locking groove (111) includes an inclined groove (1111) and a horizontal groove (1112). The inclined groove (1111) and the horizontal groove (1112) are interconnected. Locking rod (4), which is fixedly connected to the bottom of the composite beam, is U-shaped and is used to slide from the inclined groove (1111) into the transverse groove (1112) to form a lock; The support plate (5) is fixedly installed at the front end of the support crossbar (11).

2. The composite beam hoisting bracket support device according to claim 1, characterized in that, The rear end of the support crossbar (11) near the top is provided with a chamfer (112).

3. The composite beam hoisting bracket support device according to claim 1, characterized in that, A reinforcing rib (6) is provided between the pallet (5) and the supporting crossbar (11); And / or, a reinforcing rib (6) is also provided between the support plate (2) and the support crossbar (11).

4. The composite beam hoisting bracket support device according to claim 1, characterized in that, The fixing seat (3) includes a base (31) and side plates (32) fixedly disposed on both sides of the base (31). The space between the two side plates (32) is used for the support crossbar (11) to be inserted. The high-strength bolts (9) on the fixing seat (3) pass through the two side plates (32) to lock the support crossbar (11).

5. The composite beam hoisting bracket support device according to claim 1, characterized in that, The locking rod (4) is fixedly connected to the base plate (41), which is also fixedly connected to the bottom wall of the composite beam by high-strength bolts (9).

6. The composite beam hoisting bracket support device according to claim 1, characterized in that, The top wall of the supporting crossbar (11) is fixedly welded with a locking hook (7), which is used to hook onto the end wall of the composite beam.

7. The composite beam hoisting bracket support device according to claim 1, characterized in that, The bottom wall of the supporting crossbar (11) is provided with a vertical bar (8) and a diagonal bar (81), and the vertical bar (8), the diagonal bar (81) and the supporting crossbar (11) together form a right-angled triangle structure.

8. The composite beam hoisting bracket support device according to claim 7, characterized in that, The vertical rod (8) and the supporting horizontal rod (11) are detachably and slidably connected at the rear bottom wall position by a locking block (114). The bottom of the vertical rod (8) is provided with a notch (80). The front end of the supporting horizontal rod (11) is fixedly provided with a sleeve (113). One end of the inclined rod (81) is inserted into the sleeve (113) and the other end is inserted into the notch (80). The inclined rod (81) and the vertical rod (8) are fixedly connected by a high-strength bolt (9).

9. The composite beam hoisting bracket support device according to claim 8, characterized in that, A plug rod (1131) is fixedly arranged horizontally inside the sleeve (113), and a plug groove (811) is opened on the inclined rod (81) corresponding to the plug rod (1131). The plug groove (811) and the plug rod (1131) are plugged into each other.

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