High-strength combined steel beam

Abstract

The utility model relates to the technical field of steel structures, in particular to a high-strength combined steel beam which comprises a main beam, a plurality of upper fixing holes are formed in the left side and the right side of the top end of the main beam, first fixing bolts are in threaded connection with the inner walls of the upper fixing holes, and lower fixing holes are formed in the left side and the right side of the bottom end of the main beam. Second fixing bolts are in threaded connection with the inner walls of the lower fixing holes, clamping grooves are formed in the left end and the right end of the main body beam, separable inner supporting blocks are arranged on the inner walls of the clamping grooves, a fixing frame is arranged on the upper side of the outer wall of the main body beam, two movable hook rings are fixedly connected to the front end and the rear end of the main body beam, and the movable hook rings are used for hooking and moving of lifting hooks. The inner supporting blocks can be fixed in the clamping grooves through the first fixing bolts and the second fixing bolts, support is provided for the joint of the two main body beams during combination, and the bearing capacity of the joint is improved; the fixing frame can provide a guiding effect for the two main body beams, it is ensured that the butt joint positions of the two main body beams can be accurately aligned, and the connection firmness is high.

Description

Technical Field

[0001] This utility model relates to the field of steel structure technology, and in particular to a high-strength composite steel beam. Background Technology

[0002] In modern construction engineering, steel beams are widely used as important load-bearing structural components. They can be used for crane beams and work platform beams in factories, floor beams in multi-story buildings, and purlins in roof structures. As building heights and spans continue to increase, higher requirements are placed on the strength, stability, and ease of installation of steel beams.

[0003] Most existing composite steel beam structures are fixedly connected by riveting or welding. Riveting is troublesome to install, and welding is a non-removable connection. Once a problem occurs in the composite steel beam structure during use and a part needs to be repaired or replaced, disassembling the welded parts will be very difficult, often requiring destructive methods such as cutting. This will cause further damage to the structure, increase the difficulty and cost of maintenance, and is not conducive to the modification and upgrading of the structure. In order to address this technical problem, this application proposes a high-strength composite steel beam. Utility Model Content

[0004] The purpose of this invention is to propose a high-strength composite steel beam. The inner support block can be fixed inside the slot by the first fixing bolt and the second fixing bolt. During assembly, it provides support and guidance for the connection between the two main beams, increases the load-bearing capacity at this point, ensures a firm connection, and effectively reduces the possibility of direct breakage at the joint.

[0005] To achieve the above objectives, the solution adopted by this utility model is as follows:

[0006] A high-strength composite steel beam includes a main beam. Multiple upper fixing holes are provided on both the left and right sides of the top of the main beam. The inner walls of the upper fixing holes are threaded with first fixing bolts. Lower fixing holes are provided on both the left and right sides of the bottom of the main beam. The inner walls of the lower fixing holes are threaded with second fixing bolts. Slots are provided at both the left and right ends of the main beam. Separable inner support blocks are provided on the inner walls of the slots. A fixing frame is provided on the upper side of the outer wall of the main beam.

[0007] Furthermore, two movable hooks are fixedly connected to both ends of the main beam, and the movable hooks are used for hooking and moving by the hook.

[0008] Furthermore, the vertical cross-section of both the main beam and the inner support block is I-shaped, and the inner support block has through holes at both the upper and lower ends. The through holes are used to fix the inner support block inside the slot by cooperating with the first fixing bolt and the second fixing bolt.

[0009] Furthermore, two mounting plates are fixedly connected to the top end of the fixing frame, and flexible pads are fixedly connected to the inner sides of the mounting plates.

[0010] Furthermore, mounting holes are formed in the outer walls of the mounting plates and the flexible pads, and the mounting holes are used to fix the fixing frame.

[0011] Furthermore, a plurality of reinforcing ribs are fixedly connected to the front and rear sides of the bottom end of the fixing frame, and the reinforcing ribs are used to strengthen the bent portion of the bottom end of the fixing frame.

[0012] Furthermore, through holes are formed in the front and rear sides of the top end of the fixing frame, and the through holes are used to cooperate with the first fixing bolts to fix the main beam inside the fixing frame.

[0013] Furthermore, reinforcing plates are provided at the bottom ends of the main beams, and the reinforcing plates are connected to the main beams through second fixing bolts.

[0014] Furthermore, a "丄"-shaped through mounting slot is provided in the fixing frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By means of the first fixing bolt and the second fixing bolt, the inner support block can be fixed inside the card slot in the present utility model, providing support at the joint of the two main beams during combination, increasing the bearing capacity here, and reducing the possibility of direct fracture from this joint.

[0017] 2. When the main beams are combined and installed in the present utility model, the fixing frame can provide a guiding function for the two main beams, ensuring that the docking parts of the two main beams can be accurately aligned without deviation, and at the same time, it can also cooperate with the reinforcing plates to improve the connection firmness of the main beams during combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of a high-strength combined steel beam of the present utility model;

[0019] Figure 2 is an exploded structural schematic diagram of a high-strength combined steel beam of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the fixing frame in a high-strength combined steel beam of the present utility model.

[0021] In the figure: 1, main beam; 2, movable hook ring; 3, fixing frame; 4, first fixing bolt; 5, second fixing bolt; 6, mounting plate; 7, card slot; 8, inner support block; 9, reinforcing plate; 10, reinforcing rib; 11, upper fixing hole; 12, lower fixing hole; 13, flexible pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Reference Figures 1-3 The present invention provides an embodiment of a high-strength composite steel beam, comprising a main beam 1, with two movable hooks 2 fixedly connected to both the front and rear ends of the main beam 1. The movable hooks 2 are used for hooking and moving by a hook. Multiple upper fixing holes 11 are provided on the left and right sides of the top of the main beam 1. The inner walls of the upper fixing holes 11 are threaded with first fixing bolts 4. Lower fixing holes 12 are provided on the left and right sides of the bottom of the main beam 1. The inner walls of the lower fixing holes 12 are threaded with second fixing bolts 5. The left and right ends of the main beam 1 are provided with slots 7. The inner walls of the slots 7 are provided with inner support blocks 8. The vertical sections of the main beam 1 and the inner support blocks 8 are both I-shaped. The upper and lower ends of the inner support blocks 8 are provided with through holes. The through holes are used to cooperate with the first fixing bolts 4 and the second fixing bolts 5 to fix the inner support blocks 8 inside the slots 7.

[0024] Specifically, the movable hooks 2 on both sides of the main beam 1 provide a gripping point for the transporter or a hooking position for the crane during the movement of the main beam 1, facilitating the movement of the main beam 1. The upper fixing holes 11 and lower fixing holes 12 at the upper and lower ends of the main beam 1 can be used with the first fixing bolt 4 and the second fixing bolt 5 respectively to fix the inner support block 8 inside the slot 7. During assembly, it provides support at the connection of the two main beams 1, increasing the load-bearing capacity at this point and ensuring high connection strength at the joint.

[0025] A fixing frame 3 is provided on the upper side of the outer wall of the main beam 1. Two mounting plates 6 are fixedly connected to the top of the fixing frame 3. Flexible pads 13 are fixedly connected to the inner side of each mounting plate 6. Mounting holes are opened on the outer walls of both the mounting plate 6 and the flexible pads 13. The mounting holes are used to fix the fixing frame 3. Multiple reinforcing ribs 10 are fixedly connected to the front and rear sides of the bottom end of the fixing frame 3. The reinforcing ribs 10 are used to reinforce the bent part at the bottom end of the fixing frame 3. Through holes are opened on the front and rear sides of the top of the fixing frame 3. The through holes are used to fix the main beam 1 inside the fixing frame 3 with the first fixing bolt 4. A reinforcing plate 9 is provided at the bottom end of the main beam 1. The reinforcing plate 9 is connected to the main beam 1 by the second fixing bolt 5.

[0026] On the other hand, specifically, when assembling and installing the main beam 1, the "T"-shaped mounting slot in the fixing frame 3 can provide guidance for the two main beams 1, ensuring that the connection of the two main beams 1 can be accurately aligned without deviation. At the same time, the reinforcement plate 9 improves the stability of the main beam 1 during assembly. The reinforcing rib 10 at the bottom of the fixing frame 3 can improve the strength of the bending point of the fixing frame 3, thereby supporting the upper bending point of the main beam 1 and improving the strength of the connection of the main beam 1. The flexible pad 13 installed on the mounting plate 6 can cause the fixing frame 3 to deform to a certain extent during installation and fit more closely to the installation point, ensuring the stability of the fixing frame 3 installation.

[0027] Working principle: First, the main beam 1 is inverted on the ground. Then, the inner support block 8 is inserted into the slot 7 on one side of the main beam 1. Next, the reinforcing plate 9 is placed at the top of the main beam 1 and aligned with the lower fixing hole 12. The reinforcing plate 9 is fixed to the main beam 1 with the second fixing bolt 5, and the inner support block 8 is fixed inside the slot 7. Then, the main beam 1 is righted and lifted by the moving hook 2 with the help of a crane, and inserted into the fixing frame 3. The upper fixing hole 11 at its top is aligned with the through hole on the fixing frame 3. It is then fixed inside the fixing frame 3 with the first fixing bolt 4. Then, another main beam 1 is lifted and inserted into the right side of the fixing frame 3. Guided by the fixing frame 3, the slot 7 on its left side can be accurately aligned with the slot 7 already installed on the inner wall of the fixing frame 3. The right side of the main beam 1 is joined to prevent misalignment during installation. Then, the remaining second fixing bolt 5 and the first fixing bolt 4 are inserted into the through holes at the top of the fixing frame 3 and the bottom of the reinforcing plate 9, respectively, to complete the combined installation of the two main beams 1. The inner support block 8 inside the slot 7 can increase the load-bearing capacity at the connection of the two main beams 1, while the reinforcing plate 9 can ensure the stability of the connection of the two main beams 1. The fixing frame 3 not only guides the main beam 1, but also protects the connection of the main beam 1. The reinforcing rib 10 strengthens the bend of the fixing frame 3 and the upper part of the main beam 1 is strengthened to reduce the possibility of breakage and further improve the stability and load-bearing capacity of the steel beam connection.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. It should be noted that for those skilled in the art, any changes, modifications or additions without departing from the concept of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A high-strength composite steel beam, characterized in that: It includes a main beam (1), and is characterized in that: on both the left and right sides of the top end of the main beam (1), a plurality of upper fixing holes (11) are provided. The inner walls of the upper fixing holes (11) are all threadedly connected with first fixing bolts (4). On both the left and right sides of the bottom end of the main beam (1), lower fixing holes (12) are provided. The inner walls of the lower fixing holes (12) are all threadedly connected with second fixing bolts (5). On both the left and right ends of the main beam (1), clamping grooves (7) are provided. Inner support blocks (8) are arranged on the inner walls of the clamping grooves (7). A fixing frame (3) is arranged on the upper side of the outer wall of the main beam (1).

2. The high-strength composite steel beam according to claim 1, characterized in that: On both the front and rear ends of the main beam (1), two moving hook rings (2) are fixedly connected. The moving hook rings (2) are used for the hook of a lifting hook to hook and move.

3. A high-strength composite steel beam according to claim 1, characterized in that: The vertical cross-sections of the main beam (1) and the inner support block (8) are both I-shaped. Through holes are provided at both the upper and lower ends of the inner support block (8). The through holes are used to cooperate with the first fixing bolt (4) and the second fixing bolt (5) to fix the inner support block (8) inside the clamping groove (7).

4. A high-strength composite steel beam according to claim 1, characterized in that: On the top end of the fixing frame (3), two mounting plates (6) are fixedly connected. Flexible pads (13) are fixedly connected to the inner sides of the mounting plates (6).

5. A high-strength composite steel beam according to claim 4, characterized in that: Mounting holes are provided on the outer walls of the mounting plates (6) and the flexible pads (13). The mounting holes are used to fix the fixing frame (3).

6. A high-strength composite steel beam according to claim 1, characterized in that: On both the front and rear sides of the bottom end of the fixing frame (3), a plurality of reinforcing ribs (10) are fixedly connected. The reinforcing ribs (10) are used to strengthen the bent part at the bottom end of the fixing frame (3).

7. A high-strength composite steel beam according to claim 1, characterized in that: Through holes are provided on both the front and rear sides of the top end of the fixing frame (3). The through holes are used to cooperate with the first fixing bolt (4) to fix the main beam (1) inside the fixing frame (3).

8. A high-strength composite steel beam according to claim 1, characterized in that: Reinforcement plates (9) are arranged at the bottom ends of the main beam (1). The reinforcement plates (9) are connected to the main beam (1) through the second fixing bolts (5).

9. A high-strength composite steel beam according to claim 1, characterized in that: An "丄"-shaped notch is provided in the fixing frame (3).

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