Steel and concrete composite beam structure

Abstract

The utility model relates to the technical field of building structures, in particular to a steel and concrete combined beam structure which comprises a column body, a connecting frame arranged in the column body, a steel beam arranged in the connecting frame and a concrete layer arranged on the steel beam, an inclined block is arranged on the side face of the steel beam and movably arranged on the inner wall of a straight groove, and a wedge block is movably arranged in the straight groove. According to the steel and concrete combined beam structure, the steel beam deforms through the arranged concrete layer, so that the steel beam moves in the connecting frame, and therefore the inclined block is driven to slide in the straight groove; the inclined surface arranged in the straight groove corresponds to the wedge block, when the wedge block is extruded by the inclined block, the wedge block can be moved through the limiting assembly, the arranged reinforcing rib is arranged in the connecting groove, the other end of the reinforcing rib is connected with the end face of the steel beam, connection between the column body and the steel beam is enhanced, the tensile resistance between the steel beam and the column body can be improved, and therefore certain bearing capacity is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a steel and concrete composite beam structure. Background Art

[0002] Steel-concrete composite beam is a structural form that combines the advantages of both steel and concrete. It makes full use of the high strength and good ductility of steel and the high compressive resistance of concrete.

[0003] However, in actual use, the steel and concrete composite beam structure is achieved by connecting the steel beam to the column with bolts and pouring concrete on the top of the steel beam. In order to avoid the steel beam bending downward after pouring concrete, a certain amount of prestressing is usually applied to the steel beam when it is made, so that the steel beam and the concrete layer can be placed horizontally after pouring concrete. However, the two ends of the existing steel and concrete composite beam are connected to the side of the column, and the steel beam and the column are connected by bolts. Therefore, when the concrete presses the steel beam prestressing downward, it will be converted into shear force directly acting on the bolts and the column. If this continues for a long time and heavy objects are added, the bolts and the column may experience fatigue problems under high-intensity cyclic loads, affecting the overall service life. For this reason, we propose a steel and concrete composite beam structure. Utility Model Content

[0004] A technical problem to be solved by this application is: how to design a steel and concrete composite beam structure that can reduce the load on bolts and columns caused by the prestressing of the steel beam.

[0005] To solve the above technical problems, an embodiment of the present application provides a steel and concrete composite beam structure, comprising a column, a connection frame disposed within the column, a steel beam disposed within the connection frame, and a concrete layer disposed on the steel beam, and further comprising:

[0006] A straight groove, the straight groove is opened on the side of the connecting frame, and one side of the inner wall thereof is inclined;

[0007] An inclined block is provided on the side of the steel beam and is movably provided on the inner wall of the straight groove;

[0008] A wedge block, wherein the wedge block is movably arranged inside the straight groove, and the inclined surfaces on both sides of the wedge block are movably arranged on the inclined surfaces inside the inclined block and the straight groove respectively;

[0009] The limiting component is arranged on the connecting frame and is used to limit the steel beam inside the connecting frame when the wedge block clamps the oblique block inside the straight groove, thereby performing free adjustment.

[0010] In some embodiments, the limiting assembly includes a tension bolt movably disposed inside the wedge block, the outer surface of the tension bolt is threadedly connected to a first nut, and the end face of the first nut is tightly fitted to the side surface of the wedge block.

[0011] In some embodiments, a connecting groove is opened on the side of the column, the outer surface of the connecting frame is movably set on the inner wall of the connecting groove, and the connecting frame is box-type, and a connecting piece is set inside the connecting frame to fix the inclined block on the steel beam.

[0012] In some embodiments, the connecting member includes a first bolt movably arranged inside the steel beam, the end face of the first bolt passes through the side of the steel beam and the inclined block in sequence, the outer surface of the first bolt is threadedly connected to a second nut, and the end face of the second nut is tightly fitted to the side of the inclined block.

[0013] In some embodiments, the inner wall of the connecting frame is provided with a plurality of thread grooves, the inner wall of the connecting groove is provided with circular grooves corresponding to the plurality of thread grooves, and second bolts are movably provided inside the plurality of thread grooves and the corresponding circular grooves.

[0014] In some embodiments, the inner wall of the connecting groove is provided with a plurality of reinforcing ribs, and the ends of the plurality of reinforcing ribs away from the column are all provided on the end surface of the steel beam.

[0015] In some embodiments, a protective sleeve is movably provided on the outer surface of the reinforcing rib, and the end surface of the protective sleeve is in contact with the inner wall of the connecting groove.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. The steel beam is deformed by setting a concrete layer, so that the steel beam moves inside the connection frame, thereby driving the inclined block to slide inside the straight groove. The inclined surface opened inside the straight groove corresponds to the wedge block. When the inclined block squeezes the wedge block, the wedge block can be moved by the limit assembly. Therefore, the distance between the prestressed end faces of the steel beam can be adjusted, reducing the load on the bolts and columns and increasing the service life.

[0018] 2. The reinforcing ribs are set inside the connecting groove, and the other end is connected to the end face of the steel beam to strengthen the connection between the column and the steel beam, which can increase the tensile force between the steel beam and the column, thereby ensuring the bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility;

[0020] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A;

[0021] Figure 3This is a partial structural diagram of the practical column, connecting frame and inclined block;

[0022] Figure 4 This is a schematic diagram of the structure of the practical steel beam, limit assembly and inclined block;

[0023] Figure 5 Schematic diagram of the exploded structure of the wedge block, limit assembly and inclined block of this utility model;

[0024] Figure 6 Schematic diagram of the exploded structure of the practical limit assembly, connector, wedge and inclined block;

[0025] Figure 7 Schematic diagram of the exploded structure of the practical protective cover and reinforcement ribs.

[0026] In the figure: 1. Column; 2. Concrete layer; 3. Steel beam; 4. Connecting frame; 5. Wedge; 6. Limiting assembly; 61. Tension bolt; 62. First nut; 7. Bevel block; 8. Connecting piece; 81. First bolt; 82. Second nut; 9. Connecting groove; 10. Circular groove; 11. Second bolt; 12. Threaded groove; 13. Straight groove; 14. Protective cover; 15. Reinforcement rib. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solutions in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of this utility, not all of the embodiments. Based on the embodiment of this utility, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility.

[0028] Example 1

[0029] See also Figure 1-6 , this utility provides a technical solution:

[0030] A steel and concrete composite beam structure, comprising a column 1, a connecting frame 4 disposed in the column 1, a steel beam 3 disposed in the connecting frame 4, and a concrete layer 2 disposed on the steel beam 3, and further comprising:

[0031] A straight groove 13 is provided on the side of the connecting frame 4, and one side of the inner wall of the straight groove 13 is provided with an inclined surface;

[0032] The oblique block 7 is arranged on the side of the steel beam 3 and is movably arranged on the inner wall of the straight groove 13. The oblique block 7 is arranged with an inclined surface on one side;

[0033] Wedge block 5 is movably arranged inside the straight groove 13, and its two side inclined surfaces are movably arranged on the inclined surfaces inside the inclined block 7 and the straight groove 13 respectively. The wedge block 5 is set with inclined surfaces on both sides;

[0034] The limiting component 6 is arranged on the connecting frame 4 and is used to limit the steel beam 3 inside the connecting frame 4 when the wedge block 5 clamps the inclined block 7 inside the straight groove 13, thereby performing free adjustment.

[0035] The limiting assembly 6 includes a tension bolt 61 movably arranged inside the wedge block 5. The outer surface of the tension bolt 61 is threadedly connected to a first nut 62. The end face of the first nut 62 fits tightly against the side of the wedge block 5. The tension bolt 61 can pass through the interior of the wedge block 5. The first nut 62 set on the tension bolt 61 fits against the side of the wedge block 5, thereby limiting the wedge block 5.

[0036] A connecting groove 9 is provided on the side of the column 1, and the outer surface of the connecting frame 4 is movably set on the inner wall of the connecting groove 9, and the connecting frame 4 is a box-type setting. A connecting piece 8 is provided inside the connecting frame 4 to fix the inclined block 7 on the steel beam 3. The box-type setting can protect the connection between the steel beam 3 and the column 1.

[0037] The connecting member 8 includes a first bolt 81 movably arranged inside the steel beam 3. The end face of the first bolt 81 passes through the side faces of the steel beam 3 and the inclined block 7 in sequence. The outer surface of the first bolt 81 is threadedly connected with a second nut 82. The end face of the second nut 82 fits tightly against the side face of the inclined block 7. The first bolt 81 and the second nut 82 connect the inclined block 7 to the steel beam 3.

[0038] The inner wall of the connecting frame 4 is provided with a plurality of thread grooves 12, and the inner wall of the connecting groove 9 is provided with circular grooves 10 corresponding to the plurality of thread grooves 12. Second bolts 11 are movably provided inside the plurality of thread grooves 12 and the corresponding circular grooves 10. By inserting the second bolts 11 into the inner wall of the thread groove 12 on the connecting frame 4, it can be connected to the corresponding circular groove 10, thereby fixing the connecting frame 4 on the column 1.

[0039] When using this device, first place the prestressed steel beam 3 into the interior of the connecting frame 4, and threadably connect it to the interior of the threaded groove 12 through the second bolt 11, so that it enters the corresponding circular groove 10. After being placed in the concrete layer 2, the end face of the steel beam 3 will slide inside the connecting frame 4, thereby driving the inclined block 7 to move inside the straight groove 13. The inclined surface of the inclined block 7 squeezes the inclined surface of the wedge block 5, and at the same time, the inclined surface of the wedge block 5 squeezes the inclined surface of the large straight groove 13. When adjustment is needed, the first nut 62 can be rotated to move on the outer surface of the tension bolt 61, and the first nut 62 can be moved away from the wedge block 5 so that the inclined block 7 can squeeze the wedge block 5, so that the wedge block 5 slides on the outer surface of the tension bolt 61. After completion, tighten the first nut 62 to stick to the wedge block 5.

[0040] Example 2

[0041] See also Figure 7, this utility provides a technical solution:

[0042] Different from Example 1, the inner wall of the connecting groove 9 is provided with multiple reinforcing ribs 15, and the end of the multiple reinforcing ribs 15 away from the column 1 is arranged on the end face of the steel beam 3. The provided reinforcing ribs 15 can connect the column 1 and the steel beam 3, thereby increasing the connection between the two.

[0043] The outer surface of the reinforcing rib 15 is provided with a protective cover 14, and the end face of the protective cover 14 is fitted to the inner wall of the connecting groove 9. When the steel beam 3 shakes, the protective cover 14 is connected to the reinforcing rib 15 through the protective cover 14, thereby reducing the damage of the reinforcing rib 15 to the column 1.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may 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. A steel and concrete composite beam structure, comprising a column (1), a connecting frame (4) disposed in the column (1), a steel beam (3) disposed in the connecting frame (4), and a concrete layer (2) disposed on the steel beam (3), characterized in that: Also included are: A straight groove (13), wherein the straight groove (13) is provided on the side of the connecting frame (4), and one side of the inner wall thereof is provided with an inclined surface; An inclined block (7), the inclined block (7) is arranged on the side of the steel beam (3) and is movably arranged on the inner wall of the straight groove (13); A wedge block (5), wherein the wedge block (5) is movably arranged inside the straight groove (13), and the inclined surfaces on both sides thereof are movably arranged on the inclined surfaces inside the inclined block (7) and the straight groove (13); A limiting assembly (6) is provided on the connecting frame (4) and is used for limiting the steel beam (3) inside the connecting frame (4) when the wedge block (5) clamps the inclined block (7) inside the straight groove (13), thereby enabling free adjustment.

2. The steel and concrete composite beam structure according to claim 1, characterized in that: The limiting assembly (6) includes a tension bolt (61) movably arranged inside the wedge block (5), the outer surface of the tension bolt (61) is threadedly connected to a first nut (62), and the end surface of the first nut (62) is tightly fitted to the side surface of the wedge block (5).

3. The steel and concrete composite beam structure according to claim 2, characterized in that: A connecting groove (9) is provided on the side of the column (1); the outer surface of the connecting frame (4) is movably arranged on the inner wall of the connecting groove (9); and the connecting frame (4) is a box-type arrangement; a connecting piece (8) for fixing the inclined block (7) to the steel beam (3) is provided inside the connecting frame (4).

4. The steel and concrete composite beam structure according to claim 3, characterized in that: The connecting member (8) includes a first bolt (81) movably arranged inside the steel beam (3), the end face of the first bolt (81) sequentially passes through the side faces of the steel beam (3) and the inclined block (7), the outer surface of the first bolt (81) is threadedly connected to a second nut (82), and the end face of the second nut (82) is tightly fitted to the side face of the inclined block (7).

5. The steel and concrete composite beam structure according to claim 4, characterized in that: The inner wall of the connecting frame (4) is provided with a plurality of thread grooves (12), the inner wall of the connecting groove (9) is provided with circular grooves (10) corresponding to the plurality of thread grooves (12), and second bolts (11) are movably provided inside the plurality of thread grooves (12) and the corresponding circular grooves (10).

6. The steel and concrete composite beam structure according to claim 5, characterized in that: The inner wall of the connection groove (9) is provided with a plurality of reinforcing ribs (15), and the ends of the plurality of reinforcing ribs (15) away from the column (1) are all provided on the end surface of the steel beam (3).

7. The steel and concrete composite beam structure according to claim 6, characterized in that: The outer surface of the reinforcing rib (15) is movably covered with a protective sleeve (14), and the end surface of the protective sleeve (14) is fitted to the inner wall of the connecting groove (9).

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