Steel beam and concrete connecting component reinforcing structure

Abstract

The utility model relates to a steel beam and concrete connecting member reinforcing structure. At present, according to a concrete beam and steel beam fixing structure, high-strength bolts easily break steel bars at the bottom of a beam, the steel beam and a steel plate are in full-length welding rigid connection through fillet welds, bending moment transmitted by a steel column cannot be released, and the concrete beam is easily cracked. The reinforcing structure of the steel beam and concrete connecting component comprises a concrete beam (1) and an H-shaped steel beam davit (2) connected with the concrete beam, U-shaped steel plates (3) are inserted into the two sides of concrete, the U-shaped steel plates and the concrete beam are fixedly connected through a set of split bolts (4), the middle position of the bottom of each U-shaped plate is connected with a butt-joint steel plate (5), and the butt-joint steel plate (5) is fixedly connected with the H-shaped steel beam davit (2). An anti-disengaging inserting piece (6) is inserted into the butt-joint steel plate, an H-shaped steel beam davit is arranged below the anti-disengaging inserting piece, and a web plate (7) on the H-shaped steel beam davit is fixedly connected with the butt-joint steel plate through a set of high-strength bolt assemblies (8). The utility model is applied to the field of building steel structures.

Description

Technical Field

[0001] The utility model relates to a steel beam and concrete connecting member reinforcement structure. Background Art

[0002] In modern construction, we often encounter structures that connect concrete and steel beams. For example, a steel beam is fixed vertically under a concrete beam. The common construction process is to first fix the steel plate with chemical high-strength bolts at the bottom of the concrete beam, and then fully weld the H-shaped steel beam suspender column to the steel plate. However, high-strength bolts can easily break the steel bars at the bottom of the beam, and the steel beam and the steel plate are fully welded by fillet welds. The bending moment transmitted by the steel column cannot be released, which can easily crack the concrete beam. At the same time, the chemical of the bolts implanted from bottom to top will flow downward, and the end anchoring cannot meet the requirements. The overhead welding construction is also difficult. This structure can also cause the high-strength bolts that fix the steel plate to be missing or loose due to structural changes caused by vibration or environmental factors, which will make the connection between the beams and columns unstable, thus affecting the stability of the entire structure. Utility Model Content

[0003] The utility model aims to provide a steel beam and concrete connection member reinforcement structure.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A steel beam and concrete connection member reinforcement structure, which comprises a concrete beam and an H-shaped steel beam suspension column connected to the concrete beam, U-shaped steel plates are inserted on both sides of the concrete, and the U-shaped steel plate and the concrete beam are fixedly connected by a group of tension bolts, a butt steel plate is connected to the middle position of the bottom of the U-shaped steel plate, and an anti-detachment plug-in is inserted into the butt steel plate, an H-shaped steel beam suspension column is arranged below the anti-detachment plug-in, and the web on the H-shaped steel beam suspension column is fixedly connected to the butt steel plate by a group of high-strength bolt assemblies.

[0006] The steel beam and concrete connection member reinforcement structure, the anti-dropping plug-in is composed of a bottom plate, a slot vertical plate and two rectangular baffles, the bottoms of the rectangular baffle and the slot vertical plate are respectively vertically connected to the bottom plate, a strip socket is opened in the middle position of the bottom plate, and a docking steel plate is inserted into the strip socket.

[0007] The steel beam and concrete connection member reinforcement structure is provided, and a slot is longitudinally provided on the slot vertical plate, and the slot is inserted into the bolt rod on the tension bolt.

[0008] The steel beam and the concrete connecting member strengthen the structure, and one side plate surface of the rectangular baffle is in contact with the nut plane of the tension bolt.

[0009] The steel beam and the concrete connecting member strengthen the structure, and there is structural adhesive between the inner side of the U-shaped steel plate and the two sides of the concrete beam to form a structural adhesive layer.

[0010] The beneficial effects achieved by the utility model are:

[0011] 1. The utility model adjusts the bottom anchor bolts of the original structure to both sides of the concrete beam to make a tension bolt structure without damaging the stress-bearing steel bars at the bottom of the beam. A U-shaped steel plate is used as a docking piece with the H-shaped steel beam hanger column, and the steel plate and both sides of the concrete beam are bonded with structural adhesive. The H-shaped steel beam hanger column and the docking steel plate on the U-shaped connector are connected by high-strength bolts. The force is simple, the node is simplified to a hinged node, the bending moment transmitted by the steel column is released, and only axial force is generated on the beam, which minimizes the impact on the concrete beam. In addition, the use of the U-shaped steel plate is equivalent to bonding the beam with steel.

[0012] 2. After the butt-jointed steel plate of the utility model is inserted into the strip-shaped insertion hole of the anti-dropping plug, the slot structure on the slot vertical plate on the anti-dropping plug is respectively inserted into the bolt rod of the tension bolt, and the plate surface of the slot vertical plate is pressed against the plane of the nut to prevent the nut from falling off the bolt, and the plate surfaces of the two rectangular baffles on the other side of the anti-dropping plug are respectively pressed against the nut cap of the tension bolt, so that the bolt is limited by the rectangular baffle, and the slot vertical plate limits the nut, thereby preventing the nut and the bolt from loosening and ensuring the stability between the steel beam structure. Prevent the fasteners between the concrete beam and the U-shaped steel plate from loosening and missing, resulting in deformation of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0015] Attached Figure 2 It is a structural schematic diagram of an anti-dropping plug-in.

[0016] Attached Figure 3 Yes Figure 2 Top view of the .

[0017] Attached Figure 4 It is a schematic diagram of the installation structure of the utility model.

[0018] Attached Figure 5 It is a schematic diagram of the installation structure of the original concrete beam and steel beam.

[0019] In the figure: 1. concrete beam, 2. H-shaped steel beam hanging column, 3. U-shaped steel plate, 4. tension bolts, 5. butt steel plate, 6. anti-drop plug-in, 7. web plate, 8. high-strength bolt assembly, 9. structural adhesive layer, 10. steel plate, 11. high-strength bolts, 61. bottom plate, 62. slot vertical plate, 63. rectangular baffle, 64. strip socket. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Embodiment 1:

[0022] A steel beam and concrete connection member reinforcement structure, which comprises a concrete beam 1 and an H-shaped steel beam hanger 2 connected to the concrete beam, U-shaped steel plates 3 are inserted on both sides of the concrete; a group of plug holes are symmetrically opened on the two vertical plates of the U-shaped steel plate, and the hole diameters of the group of plug holes are the same, and plug holes with the same hole diameters are opened on the beam body of the concrete beam, and tension bolts 4 are respectively passed through the plug holes on the U-shaped steel plate and the concrete beam, so as to fix the concrete beam and the U-shaped steel plate. In the steel beam and concrete connection member reinforcement structure, there is structural adhesive between the inner side of the U-shaped steel plate and the two sides of the concrete beam to form a structural adhesive layer 9.

[0023] A butt-jointed steel plate 5 is connected to the middle position of the bottom of the U-shaped steel plate. The butt-jointed steel plate is a rectangular steel plate structure, and the ends of the butt-jointed steel plate are vertically connected to the horizontal plate surface of the U-shaped steel plate by welding. An anti-slip plug 6 is inserted into the butt-jointed steel plate, and an H-shaped steel beam sling is arranged below the anti-slip plug. A group of jack structures are provided on the web 7 of the H-shaped steel beam sling, and a group of jack structures are provided on the butt-jointed steel plate, and the jacks on the butt-jointed steel plate and the jacks on the web of the H-shaped steel beam sling correspond to each other. The high-strength bolt assembly 8 is respectively inserted into the jacks on the butt-jointed steel plate and the jacks on the web of the H-shaped steel beam sling, thereby connecting the H-shaped steel beam sling and the U-shaped steel plate. The bottom anchor bolts are installed on both sides of the concrete beam to serve as tension bolts without damaging the stress-bearing steel bars at the bottom of the beam. U-shaped steel plates are used as connectors and bonded to the concrete beams with structural adhesive. The H-shaped steel beam hanger column and the U-shaped connector are connected with high-strength bolts. The force is simple and the node is simplified to a hinged node. The bending moment transmitted by the steel column is released, and only axial force is generated on the beam, minimizing the impact on the concrete beam. The U-shaped connector is equivalent to bonding steel to reinforce the beam.

[0024] Embodiment 2:

[0025] The steel beam and concrete connection member reinforcement structure, the anti-drop plug-in is composed of a bottom plate 61, a slot vertical plate 62 and two rectangular baffles 63. The bottoms of the rectangular baffle and the slot vertical plate are respectively vertically connected to the bottom plate. A strip-shaped plug hole 64 is provided in the middle of the bottom plate, and a butt-jointed steel plate is inserted into the strip-shaped plug hole. The bottom plate and the rectangular baffle are rectangular steel plate structural members. The two rectangular baffles are on the same plane, and the bottoms of the two rectangular baffles and the bottom of the slot vertical plate are vertically fixedly connected to the bottom plate by welding.

[0026] The slot vertical plate is longitudinally provided with a slot, and the slot is inserted into the bolt rod on the tension bolt. One side of the rectangular baffle is fitted with the nut plane of the tension bolt. After the U-shaped steel plate and the concrete beam are fixed by the tension bolt, the strip-shaped jack on the bottom plate of the anti-slip plug-in is inserted into the docking steel plate. After the docking steel plate is inserted, a slot structure is longitudinally provided on the slot vertical plate on the anti-slip plug-in. The slot width of the slot is slightly larger than the diameter of the screw rod, and the slot width of the slot is smaller than the size of the nut. The slot structures on the slot vertical plate are respectively inserted into the bolt rod of the tension bolt, and the plate surface of the slot vertical plate is against the plane of the nut. The plate surfaces of the two rectangular baffles on the other side of the anti-slip plug-in are respectively against the nut of the tension bolt, so that the bolt is limited by the rectangular baffle, and the nut is limited by the slot vertical plate, so as to prevent the nut and the bolt from loosening and ensure the stability between the steel beam structure.

Claims

1. A steel beam and concrete connection member reinforcement structure, comprising a concrete beam and an H-shaped steel beam suspender connected to the concrete beam, characterized in that: U-shaped steel plates are inserted into both sides of the concrete, and the U-shaped steel plates and the concrete beam are fixedly connected by a group of tension bolts. A butt steel plate is connected to the middle position of the bottom of the U-shaped steel plate, and an anti-detachment plug-in is inserted into the butt steel plate. An H-shaped steel beam hanging column is arranged below the anti-detachment plug-in, and the web plate on the H-shaped steel beam hanging column is fixedly connected to the butt steel plate by a group of high-strength bolt assemblies.

2. The steel beam and concrete connection member reinforcement structure according to claim 1 is characterized in that: The anti-drop plug-in is composed of a bottom plate, a slot vertical plate and two rectangular baffles. The bottoms of the rectangular baffle and the slot vertical plate are respectively vertically connected to the bottom plate. A strip jack is opened in the middle of the bottom plate, and a docking steel plate is inserted into the strip jack.

3. The steel beam and concrete connection member reinforcement structure according to claim 2 is characterized in that: The slot vertical plate is longitudinally provided with a slot, and the slot is inserted into the bolt rod on the tension bolt.

4. The steel beam and concrete connection member reinforcement structure according to claim 2 is characterized in that: One side plate surface of the rectangular baffle is in contact with the nut plane of the tension bolt.

5. The steel beam and concrete connection member reinforcement structure according to claim 1 is characterized in that: There is structural adhesive between the inner side of the U-shaped steel plate and the two sides of the concrete beam to form a structural adhesive layer.

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