Stress structure above square culvert

Abstract

The utility model discloses a square culvert upper stress structure which comprises a square culvert, and an inner edge sealing plate is arranged on the connecting face of the square culvert. The traction rib is fixedly arranged at the top of the square culvert; the fixing ribs are linearly arrayed and fixedly arranged on the square culvert connecting surface, each fixing rib comprises an n-shaped part, and a connecting channel is defined by every two adjacent n-shaped parts; and the transverse plate is assembled in the connecting channel in the horizontal direction. The fixing ribs and the traction ribs are connected into a whole through the transverse plates of the stress structure above the square culvert, the position of the transverse plates is limited, due to the structural design of the traction ribs, the inclined outwards-protruding structures on the two sides can relieve the tensile stress of the right-angle edges of the square culvert, the square culvert is connected with the two sides of a foundation pit through the pull rods through embedded parts or cast-in-place concrete, and therefore the square culvert is prevented from being damaged. And meanwhile, the bearing pressure above the square culvert is relieved through the traction force in the horizontal direction, and the flexible plate provides elastic force for connection of the square culvert so as to reduce sedimentation or deformation caused by thermal expansion and cold contraction.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more specifically to a stress-bearing structure above a square culvert. Background Art

[0002] A square culvert is a form of culvert, mainly composed of a culvert body, a foundation, end walls and wing walls. It is called a square culvert because its cross-section is rectangular. In current underground utility tunnel construction, precast square culverts are usually used for construction. By对接 multiple precast square culverts, the construction period is greatly saved compared with traditional casting construction.

[0003] Combined with the publication number CN209428979U, the publication date is September 24, 2019, which discloses a square culvert assembly.

[0004] In the prior art including the above patent, the central through holes of the steel bar parts of the first square culvert and the central through holes of the steel bar parts of the second square culvert form an overlapping part, the rigid member is arranged through the overlapping part, and the sealing strip is arranged perpendicular to the connection surface along the outer edge and the inner edge of the connection surface. The above technology splices the square culverts through rigid members, but there is a lack of connection between two rigid members in a vertical relationship, so that there may be a problem of insufficient structural support at the right angle of the square culvert connection. As the top of the square culvert is the main load-bearing structure, the two right-angle edges on both sides are areas where stress is relatively concentrated, which may cause the rigid members to shift. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a stress-bearing structure above a square culvert to solve the above problems.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A stress-bearing structure above a square culvert, including a square culvert, on whose connection surface an inner edge sealing plate is arranged;

[0007] Tension bars, which are fixedly arranged on the top of the square culvert, and both ends are obliquely outwardly convex structures extending out of the square culvert;

[0008] Fixed bars, which are linearly arrayed and fixedly arranged on the connection surface of the square culvert, and include a several-character part. Adjacent several-character parts enclose a connection channel;

[0009] A horizontal plate, which is assembled in the connection channel in the horizontal direction. The horizontal plate includes tie rods welded at both ends and a flexible plate embedded in the middle, and the tie rods are provided with bending parts. The horizontal plate is driven to bend so that the bending parts abut against the tension bars. In the abutting state, the side surface of the horizontal plate is engaged with the fixed bars.

[0010] Preferably, a receiving groove is formed on the side surface of the horizontal plate.

[0011] Preferably, inserting rods that are engaged with the receiving groove in a clamping manner are fixedly arranged on the inner side of the several-character part.

[0012] Preferably, the curved portion comprises a narrow portion and a wide portion, and the narrow portion is deformed by being pushed and squeezed by the tensioning rod, so that the wide portion clamps the tensioning rod.

[0013] Preferably, it also includes a vertical plate, which is assembled in the vertical connecting channel and is used to support the horizontal plate.

[0014] Preferably, both ends of the vertical plate are provided with plug-in slots for accommodating the pull rod, and the bottom axis of the plug-in slot is consistent with the deflection axis of the horizontal plate.

[0015] In the above technical scheme, the utility model provides a force-bearing structure above the square culvert, which has the following beneficial effects: the horizontal plate connects the fixed reinforcement and the tension reinforcement into one, and limits the position of the horizontal plate. Due to the structural design of the tension reinforcement, the oblique outward convex structures on both sides can relieve the tensile stress of the right-angle edges of the square culvert. The square culvert is connected to both sides of the foundation pit through embedded parts or cast-in-place concrete through pull rods to avoid displacement of the horizontal plate. At the same time, the load-bearing pressure above the square culvert is relieved through the traction force in the horizontal direction, and the flexible plate provides elastic force for the connection of the square culvert to reduce settlement or deformation caused by thermal expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the positions of the vertical plates, fixed ribs and tension ribs provided in the embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the horizontal plate and the tensioning reinforcement in a bent state provided by an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of a horizontal plate provided in an embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the initial position of the horizontal plate provided in an embodiment of the utility model;

[0022] Figure 6 A schematic diagram of the end position of the horizontal plate provided in an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Square culvert; 2. Inner edge sealing plate; 3. Pulling ribs; 4. Fixing ribs; 41. "J"-shaped portion; 42. Insertion rod; 5. Horizontal plate; 51. Flexible plate; 52. Pull rod; 53. Connection groove; 54. Bending portion; 6. Vertical plate; 61. Connection groove. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-6 As shown, a force-bearing structure above a square culvert comprises a square culvert 1, and an inner edge sealing plate 2 is provided on its connecting surface;

[0027] The pulling rod 3 is fixedly arranged on the top of the square culvert 1, and both ends of the pulling rod are oblique outward convex structures extending out of the square culvert 1;

[0028] The fixed ribs 4 are arranged in a linear array and fixedly disposed on the connecting surface of the square culvert 1, and include a "J"-shaped portion 41, and adjacent "J"-shaped portions 41 enclose a connecting channel;

[0029] The transverse plate 5 is assembled in the connecting channel in the horizontal direction. The transverse plate 5 includes a tie rod 52 welded at both ends and a flexible plate 51 embedded in the middle. The tie rod 52 is provided with a bending portion 54. The transverse plate 5 is driven to bend so that the bending portion 54 abuts against the pulling rib 3. In the abutting state, the side surface of the transverse plate 5 is engaged with the fixed rib 4.

[0030] The grouting channel is formed between the connecting surfaces of the two square culverts 1, and the connecting surfaces of the two square culverts 1 are opposite to each other. The cross plate 5 is passed through the grouting channel and then moved from bottom to top, and the cross plate 5 is located in the connecting channel. The cross plate 5 is bent outward from both sides by a wrench or manpower, and the flexible plate 51 is deformed to adapt to the bending angle of the cross plate 5. The pull rod 52 rotates with the cross plate 5 and gradually abuts against the tensioning bar 3. At the same time, the side surface of the cross plate 5 is close to the inner wall of the ""-shaped portion 41 of the fixed rib 4 and gradually engages, so that the cross plate 5 connects the fixed rib 4 and the tensioning bar 3 into one. Due to the structural design of the tensioning bar 3, the oblique outward convex structures on both sides can relieve the tensile stress of the right-angled edge of the square culvert 1. The square culvert 1 is connected to both sides of the foundation pit through embedded parts or cast-in-place concrete through the pull rod 52 to avoid displacement of the cross plate 5. At the same time, the load-bearing pressure above the square culvert 1 is relieved through the traction force in the horizontal direction.

[0031] In the above technology, the transverse plate 5 connects the fixed ribs 4 and the tension ribs 3 into one body to limit the position of the transverse plate 5. Due to the structural design of the tension ribs 3, the oblique outward convex structures on both sides can relieve the tensile stress of the right-angled edges of the square culvert 1. The square culvert 1 is connected to both sides of the foundation pit through embedded parts or cast-in-place concrete through the pull rod 52 to avoid displacement of the transverse plate 5. At the same time, the load-bearing pressure above the square culvert 1 is relieved through the traction force in the horizontal direction. The flexible plate 51 provides elastic force for the connection of the square culvert 1 to reduce settlement or deformation caused by thermal expansion and contraction.

[0032] As an embodiment further provided by the present invention, a connecting groove 53 is provided on the side of the horizontal plate 5 .

[0033] Specifically, the side groove 53 of the horizontal plate 5 deflects during the bending process, and the tensioning bar 3 is located at the end position of the deflection. The position of the end position is as follows: Figure 6 As shown, when the transverse plate 5 rotates to the end position, the transverse plate 5 is engaged with the pulling rod 3 through the connecting groove 53 .

[0034] As another embodiment further provided by the present invention, an insert rod 42 which is engaged with the connecting groove 53 is fixedly provided on the inner side of the ""-shaped portion 41 .

[0035] Specifically, in the process of moving the horizontal plate 5 from bottom to top, it is necessary to first bend the horizontal plate 5 slightly inward, and the flexible plate 51 is compressed to allow the horizontal plate 5 to pass through the insertion rod 42. Then the horizontal plate 5 is overlapped on the insertion rod 42, and the horizontal plate 5 is bent outward from both sides again, with the insertion rod 42 as a fulcrum, so that the connecting groove 53 and the insertion rod 42 slide relative to each other and finally engage with each other.

[0036] As another embodiment further provided by the present invention, the curved portion 54 includes a narrow portion and a wide portion, and the narrow portion is pushed and deformed by the tensioning rod 3 so that the wide portion clamps the tensioning rod 3 .

[0037] Specifically, the bending portion 54 can be deformed and bent. When the bending portion 54 abuts against the tension muscle 3, the narrow portion first contacts the tension muscle 3 and is pushed by the tension muscle 3 to be deformed. The narrow portion opens to allow the tension muscle 3 to pass through. After the tension muscle 3 completely passes through the narrow portion, the narrow portion pushes the tension muscle 3 under the recovery of its own deformation potential energy, so that the tension muscle 3 abuts against the wide portion and is clamped by the inner wall of the wide portion.

[0038] As another embodiment further provided by the present invention, it also includes a vertical plate 6 , which is assembled in the connecting channel in the vertical direction and is used to support the horizontal plate 5 .

[0039] Specifically, after the horizontal plate 5 is overlapped in the connecting channel, the vertical plate 6 is slid and assembled from both sides, so that the plug-in groove 61 slides along the pull rod 52, and finally the two ends of the vertical plate 6 are abutted against the horizontal plate 5, thereby providing support for the horizontal plate 5, and then the horizontal plate 5 is bent, with the bottom surface of the plug-in groove 61 as the support point, so that the horizontal plates 5 on both sides rotate back to back, and the flexible plate 51 is stretched, and finally the vertical plate 6 can be connected to the horizontal plate 5 by bolts.

[0040] Working principle: Make the connecting surfaces of the two square culverts 1 face each other, pass the horizontal plate 5 through the grouting channel and move from bottom to top. In the process of moving the horizontal plate 5 from bottom to top, it is necessary to first bend the horizontal plate 5 slightly inward, and the flexible plate 51 is compressed to allow the horizontal plate 5 to pass through the plug rod 42. Then the horizontal plate 5 is overlapped on the plug rod 42, and the horizontal plate 5 is located in the connecting channel. Slide and assemble the vertical plates 6 from both sides, so that the plug groove 61 slides along the pull rod 52, and finally the vertical plates 6 and the two ends of the horizontal plate 5 are abutted, thereby providing support for the horizontal plate 5. Then, the horizontal plate 5 is bent outward on both sides by a wrench or manpower, and the bottom surface of the plug groove 61 is used as the support point, so that the horizontal plates 5 on both sides rotate back to back, and the flexible plates 51 are shaped. The cross plate 5 changes to adapt to the bending angle of the cross plate 5, the pull rod 52 rotates with the cross plate 5 and gradually abuts against the tensioning bar 3, and the bent portion 54 can be deformed and bent. When the bent portion 54 abuts against the tensioning bar 3, the narrow portion is first made to contact the tensioning bar 3 and is pushed and deformed by the tensioning bar 3, and the narrow portion opens to allow the tensioning bar 3 to pass through. After the tensioning bar 3 completely passes through the narrow portion, the narrow portion pushes the tensioning bar 3 under the recovery of its own deformation potential energy, so that the tensioning bar 3 abuts against the wide portion and is clamped by the inner wall of the wide portion. At the same time, the side surface of the cross plate 5 is close to the inner wall of the "J" portion 41 of the fixed bar 4, and the insertion rod 42 is used as a fulcrum to make the connecting groove 53 and the insertion rod 42 slide relative to each other, and finally engage with each other. The cross plate 5 is located as shown in the figure. Figure 6 After reaching the end position shown, the square culvert 1 is connected to both sides of the foundation pit through the tie rod 52 through embedded parts or cast-in-place concrete, and then the vertical plate 6 and the horizontal plate 5 are connected by bolts, and the connection between the two square culverts 1 is closed by an external formwork and grouted.

[0041] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A force-bearing structure above a square culvert, characterized in that: It comprises a square culvert (1), the connection surface of which is provided with an inner edge sealing plate (2); A pulling rod (3) is fixedly arranged on the top of the square culvert (1), and both ends of the pulling rod are oblique outward convex structures extending out of the square culvert (1); The fixed ribs (4) are arranged in a linear array and fixedly disposed on the connecting surface of the square culvert (1), and include a "J"-shaped portion (41), wherein adjacent "J"-shaped portions (41) enclose a connecting channel; A transverse plate (5) is installed in a horizontal connection channel. The transverse plate (5) includes a pull rod (52) welded at both ends and a flexible plate (51) embedded in the middle. The pull rod (52) is provided with a bending portion (54). The transverse plate (5) is driven to bend so that the bending portion (54) abuts against the pulling rib (3). In the abutting state, the side surface of the transverse plate (5) is engaged with the fixing rib (4).

2. A force-bearing structure above a square culvert according to claim 1, characterized in that: A connecting groove (53) is formed on the side surface of the transverse plate (5).

3. A force-bearing structure above a square culvert according to claim 2, characterized in that: An insert rod (42) that is snap-fitted with the connection groove (53) is fixedly arranged on the inner side of the ""-shaped" portion (41).

4. The force-bearing structure above the square culvert according to claim 1, characterized in that: The curved portion (54) comprises a narrow portion and a wide portion, and the narrow portion is pushed and deformed by the tensioning rod (3) so that the wide portion clamps the tensioning rod (3).

5. The force-bearing structure above the square culvert according to claim 1, characterized in that: It also comprises a vertical plate (6), wherein the vertical plate (6) is assembled in the connecting channel in the vertical direction and is used to support the horizontal plate (5).

6. The force-bearing structure above the square culvert according to claim 5, characterized in that: Both ends of the vertical plate (6) are provided with insertion grooves (61) for accommodating the pull rod (52), and the bottom axis of the insertion groove (61) is consistent with the deflection axis of the horizontal plate (5).

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