Support leveling structure adapting to spatial curved beam bottom

Abstract

The utility model relates to a support leveling structure adapting to spatial curved beam bottom, the structure includes bottom plate, high strength concrete, first lattice steel sheet, second lattice steel sheet, third lattice steel sheet, fourth lattice steel sheet, fifth lattice steel sheet and sixth lattice steel sheet, the first lattice steel sheet, second lattice steel sheet, third lattice steel sheet, fourth lattice steel sheet, fifth lattice steel sheet and sixth lattice steel sheet are staggered and installed on the bottom plate, the high strength concrete is installed in the space that first lattice steel sheet, second lattice steel sheet, third lattice steel sheet, fourth lattice steel sheet, fifth lattice steel sheet, sixth lattice steel sheet and bottom plate surround each other.

Description

Technical Field

[0001] This utility model relates to the field of support leveling technology, and in particular to a support leveling structure adapted to the bottom of a spatial curved beam. Background Technology

[0002] Existing bridge bearing leveling structures are formed by integrally cutting thick steel plates, which has limited adjustment range and is suitable for leveling under inclined plane structures, but cannot be used for leveling bearings under large-scale spatial curved surface structures. Therefore, this utility model proposes a spatial curved surface leveling structure for large-tonnage bridge bearings. By changing the shape of the vertical lattice steel plate, it adapts to the spatial curved surface effect of the bottom of the superstructure beam. The bottom plate between the lattice steel plate and the bearing is filled with UHPC, which solves the technical problem that double-sided fusion welding cannot be guaranteed between the outer ring lattice steel plate and the bottom steel plate of the superstructure beam and the bottom plate of the leveling structure. At the same time, it helps to improve the stability and durability of the lattice steel plate of the leveling structure.

[0003] Utility model patent CN116289508A discloses a leveling device using a lattice-structured steel plate to support polymer concrete. The device includes a bottom steel plate, polymer cement concrete, multiple transverse steel plates, and multiple longitudinal steel plates. The transverse steel plates are equidistantly arranged along the length of the bottom steel plate on its upper surface, and the longitudinal steel plates are equidistantly arranged along the width of the bottom steel plate on its upper surface. The transverse and longitudinal steel plates are arranged in a grid pattern, and the polymer cement concrete is poured into the grid structure formed by the transverse and longitudinal steel plates. This patent is not applicable to leveling supports for curved structures.

[0004] Therefore, providing a support leveling structure that can be applied to curved surfaces is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the existing technology and provide a support leveling structure that adapts to the bottom of a spatial curved beam.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the present invention, a support leveling structure adapted to the bottom of a spatial curved beam is provided. The structure includes a base plate, high-strength concrete, a first lattice steel plate, a second lattice steel plate, a third lattice steel plate, a fourth lattice steel plate, a fifth lattice steel plate, and a sixth lattice steel plate. The first lattice steel plate, the second lattice steel plate, the third lattice steel plate, the fourth lattice steel plate, the fifth lattice steel plate, and the sixth lattice steel plate are staggered on the base plate. The high-strength concrete is installed within the space enclosed by the first lattice steel plate, the second lattice steel plate, the third lattice steel plate, the fourth lattice steel plate, the fifth lattice steel plate, the sixth lattice steel plate, and the base plate.

[0008] As a preferred technical solution, the second, third, and fourth lattice steel plates are installed in parallel on the base plate in sequence, and the first, fifth, and sixth lattice steel plates are installed in parallel on the base plate in sequence.

[0009] As a preferred technical solution, the second, third, and fourth lattice steel plates are each connected to the first, fifth, and sixth lattice steel plates, respectively.

[0010] As a preferred technical solution, the second lattice steel plate is installed in the middle of the base plate.

[0011] As a preferred technical solution, the first lattice steel plate includes a first sub-plate and a second sub-plate, which are respectively installed on both sides of the second lattice steel plate and located on the bottom plate.

[0012] As a preferred technical solution, both the first sub-board and the second sub-board are tilted at a preset angle, and the tilt angle of the second sub-board is greater than that of the first sub-board.

[0013] As a preferred technical solution, the third lattice steel plate includes a third sub-plate and a fourth sub-plate, which are respectively installed on both sides of the first sub-plate.

[0014] As a preferred technical solution, the fourth lattice steel plate includes a fifth sub-plate and a sixth sub-plate, which are respectively installed on both sides of the second sub-plate.

[0015] As a preferred technical solution, the fifth lattice steel plate includes a seventh sub-plate, an eighth sub-plate, a ninth sub-plate, and a tenth sub-plate. The seventh and eighth sub-plates are respectively installed on both sides of the third sub-plate, the ninth and tenth sub-plates are respectively installed on both sides of the fifth sub-plate, and the eighth and ninth sub-plates are respectively installed on both sides of the second lattice steel plate.

[0016] As a preferred technical solution, the sixth lattice steel plate includes an eleventh sub-plate, a twelfth sub-plate, a thirteenth sub-plate and a fourteenth sub-plate. The eleventh sub-plate and the twelfth sub-plate are installed on both sides of the fourth sub-plate. The thirteenth sub-plate and the fourteenth sub-plate are installed on both sides of the sixth sub-plate. The twelfth sub-plate and the thirteenth sub-plate are installed on both sides of the second lattice steel plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The lattice steel plates of the utility model are alternately installed on the bottom plate. The lattice steel plates adopt a linear shape adapted to the spatial curved surface of the bottom of the upper structural beam. High-strength concrete is filled in the enclosed space between the bottom plate, the lattice steel plates and the bottom steel plate of the upper structural beam to adapt to the spatial curved surfaces of different bottoms of the upper structural beams.

[0019] 2. The steel structure part of the leveling structure of the utility model consists of lattice steel plates and a bottom plate composed of "field"-shaped vertical plates. Different from the traditional integral cutting type leveling steel plate, the spatial curved surface leveling structure can meet the leveling of the upper spatial curved surface structure and can also be used for the leveling of the spatial inclined surface structure, and the leveling range is larger.

[0020] 3. The first sub-plate and the second sub-plate of the utility model are both inclined at a preset angle, and the inclination angle of the second sub-plate is greater than that of the first sub-plate, which is used to adapt to different curved surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structure diagram of the utility model;

[0022] Figure 2 is the disassembled schematic diagram of the utility model;

[0023] Figure 3 is the plan schematic diagram of the utility model;

[0024] 1. Bottom plate; 2. First lattice steel plate; 3. Second lattice steel plate; 4. Third lattice steel plate; 5. Fourth lattice steel plate; 6. Fifth lattice steel plate; 7. Sixth lattice steel plate; 21. First sub-plate; 22. Second sub-plate; 41. Third sub-plate; 42. Fourth sub-plate; 51. Fifth sub-plate; 52. Sixth sub-plate; 61. Seventh sub-plate; 62. Eighth sub-plate; 63. Ninth sub-plate; 64. Tenth sub-plate; 71. Eleventh sub-plate; 72. Twelfth sub-plate; 73. Thirteenth sub-plate; 74. Fourteenth sub-plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] The existing bridge bearing leveling structure is formed by integrally cutting thick steel plates. The adjustment scale is limited and it is applicable to leveling under inclined plane structures, but it cannot be applied to the leveling of bearings under large-scale spatial curved surface structures. Therefore, the present invention proposes a bearing leveling structure. By changing the shape of the upright lattice steel plate, it adapts to the spatial curved surface effect of the bottom of the upper structure beam. UHPC (high-strength concrete) is filled in the bottom plate between the lattice steel plate and the bearing, solving the technical problem that double-sided full penetration welding cannot be guaranteed between the outer lattice steel plate and the bottom steel plate of the upper structure beam and the leveling structure bottom plate, and at the same time helping to improve the stability and durability of the lattice steel plate of the leveling structure.

[0027] The present invention provides a bearing leveling structure adapted to the bottom of a spatial curved surface beam. The lattice steel plates of the present invention are alternately installed on the bottom plate. The lattice steel plates adopt a linear shape adapted to the spatial curved surface of the bottom of the upper structure beam. High-strength concrete is filled in the enclosed space between the bottom plate, the lattice steel plates and the bottom steel plate of the upper structure beam to adapt to the spatial curved surfaces of different upper structure beams. The steel structure part of the leveling structure of the present invention consists of a lattice steel plate and a bottom plate composed of "field"-shaped vertical plates. Different from the traditional integrally cut leveling steel plate, the spatial curved surface leveling structure can meet the leveling of the upper spatial curved surface structure and can also be used for the leveling of the spatial inclined plane structure, with a larger leveling range. The first sub-plate and the second sub-plate of the present invention are both inclined at a preset angle, and the inclination angle of the second sub-plate is greater than that of the first sub-plate, which is used to adapt to different curved surfaces.

[0028] Embodiment 1

[0029] As Figures 1-3 shown, a bearing leveling structure adapted to the bottom of a spatial curved surface beam, the structure includes a bottom plate 1, high-strength concrete, a first lattice steel plate 2, a second lattice steel plate 3, a third lattice steel plate 4, a fourth lattice steel plate 5, a fifth lattice steel plate 6 and a sixth lattice steel plate 7. The first lattice steel plate 2, the second lattice steel plate 3, the third lattice steel plate 4, the fourth lattice steel plate 5, the fifth lattice steel plate 6 and the sixth lattice steel plate 7 are交错 installed on the bottom plate 1, and the high-strength concrete is installed in the space enclosed by the first lattice steel plate 2, the second lattice steel plate 3, the third lattice steel plate 4, the fourth lattice steel plate 5, the fifth lattice steel plate 6, the sixth lattice steel plate 7 and the bottom plate 1.

[0030] The second lattice steel plate 3, the third lattice steel plate 4 and the fourth lattice steel plate 5 are sequentially and parallelly installed on the bottom plate 1, and the first lattice steel plate 2, the fifth lattice steel plate 6 and the sixth lattice steel plate 7 are sequentially and parallelly installed on the bottom plate 1.

[0031] The second lattice steel plate 3, the third lattice steel plate 4 and the fourth lattice steel plate 5 are respectively connected to the first lattice steel plate 2, the fifth lattice steel plate 6 and the sixth lattice steel plate 7. The second lattice steel plate 3 is installed in the middle of the bottom plate 1.

[0032] In this embodiment, the steel structure part of the leveling structure consists of 1 bottom plate 1 and 15 lattice steel plates, forming a "field" shape structure. The middle "cross" lattice steel plates are aligned with the main diaphragms and main stiffeners of the upper structure by the second lattice steel plate 3 and the first lattice steel plate 2 (including the first sub-plate 21 and the second sub-plate 22). The third lattice steel plate 4 (including the third sub-plate 41 and the fourth sub-plate 42), the fourth lattice steel plate 5 (including the fifth sub-plate 51 and the sixth sub-plate 52), the fifth lattice steel plate 6 (including the seventh sub-plate 61 to the tenth sub-plate 64), and the sixth lattice steel plate 7 (including the eleventh sub-plate 71 to the fourteenth sub-plate 74) are respectively aligned with the diaphragms and stiffeners of the upper structure. For the middle "cross" lattice steel plates, the second lattice steel plate 3 and the first lattice steel plate 2 are welded with the bottom steel plate of the upper structure space curved beam and the bottom plate of the leveling structure by double-sided groove penetration welding. For the outer ring lattice steel plates from the third lattice steel plate 4 to the sixth lattice steel plate 7, they are welded with the bottom steel plate of the upper structure space curved beam and the bottom plate of the leveling structure by outside groove welding. After the leveling structure is assembled, micro-expansion UHPC (high-strength concrete) is poured into the leveling structure from the reserved holes in the upper structure steel plates.

[0033] The composition of UHPC is quite different from that of ordinary concrete, mainly including:

[0034] Cementitious materials: mainly composed of cement, and usually mineral admixtures such as silica fume, fly ash, and slag are also incorporated. These admixtures can react with the hydration products of cement to improve the strength and density of the concrete.

[0035] Fine aggregates: Generally, fine sands with hard texture and uniform particles such as quartz sand are used, and coarse aggregates are not used (or only a small amount of extremely fine coarse aggregates are used) to reduce the defects of internal pores and interfacial transition zones.

[0036] Fibers: In order to improve the toughness and crack resistance of UHPC, steel fibers, carbon fibers, basalt fibers, etc. are usually incorporated, and steel fibers are the most widely used.

[0037] Admixtures: including high-range water reducers, thickeners, etc. High-range water reducers can significantly reduce the water-cement ratio and improve the fluidity and strength of the concrete; thickeners can prevent material segregation.

[0038] Water: The amount used is extremely small, and the water-cement ratio is usually between 0.14 and 0.25, which is much lower than that of ordinary concrete.

[0039] Working principle: The lattice steel plate of the support space curved leveling structure is aligned with the upper structure support partition or partition stiffening rib. The internal force of the upper structure is transmitted to the bottom plate of the leveling structure through the lattice steel plate, and then to the support and the lower foundation. The space enclosed by the bottom plate of the leveling structure, the lattice steel plate and the top plate of the curved structure is filled with micro-expansion UHPC, which can enhance the stability and durability of the lattice steel plate.

[0040] The first lattice steel plate 2 includes a first sub-plate 21 and a second sub-plate 22, which are respectively installed on both sides of the second lattice steel plate 3 and located on the base plate 1.

[0041] The first sub-board 21 and the second sub-board 22 are both tilted at a preset angle, and the tilt angle of the second sub-board 22 is greater than the tilt angle of the first sub-board 21.

[0042] The third lattice steel plate 4 includes a third sub-plate 41 and a fourth sub-plate 42, which are respectively installed on both sides of the first sub-plate 21.

[0043] The fourth lattice steel plate 5 includes a fifth sub-plate 51 and a sixth sub-plate 52, which are respectively installed on both sides of the second sub-plate 22.

[0044] The fifth lattice steel plate 6 includes a seventh sub-plate 61, an eighth sub-plate 62, a ninth sub-plate 63, and a tenth sub-plate 64. The seventh sub-plate 61 and the eighth sub-plate 62 are respectively installed on both sides of the third sub-plate 41. The ninth sub-plate 63 and the tenth sub-plate 64 are respectively installed on both sides of the fifth sub-plate 51. The eighth sub-plate 62 and the ninth sub-plate 63 are respectively installed on both sides of the second lattice steel plate 3.

[0045] The sixth lattice steel plate 7 includes an eleventh sub-plate 71, a twelfth sub-plate 72, a thirteenth sub-plate 73, and a fourteenth sub-plate 74. The eleventh sub-plate 71 and the twelfth sub-plate 72 are installed on both sides of the fourth sub-plate 42. The thirteenth sub-plate 73 and the fourteenth sub-plate 74 are installed on both sides of the sixth sub-plate 52. The twelfth sub-plate 72 and the thirteenth sub-plate 73 are installed on both sides of the second lattice steel plate 3.

[0046] In practical use, the shape of the steel plate connecting the lattice steel plate and the bottom structure of the spatial curved beam can be adjusted, and the height and size of the lattice steel plate can be changed to adapt to the shape of the bottom of the spatial curved beam of the upper structure. The adjustment range of the spatial curved large-tonnage support leveling structure is extremely wide and its application range is extremely large.

[0047] The first sub-board 21 and the second sub-board 22 are aligned with the upper structural partition board. The angles of the first sub-board 21 and the second sub-board 22 are determined by adapting to the radian of the bottom surface of the upper structure and adjusted according to the bending radian of the bottom surface of the upper structure, ensuring that the internal force of the upper structure is smoothly transmitted to the bearing through the bearing leveling structure and then transmitted to the lower structure, avoiding stress concentration.

[0048] The present utility model also has the following characteristics:

[0049] 1. The space-curved large-tonnage bearing leveling structure composed of lattice steel plates and slightly expanded UHPC can adjust the space curve of the upper structure to adapt to the plane where the bearing is stressed. The structure is reasonably stressed and can be widely applied to bridge structures and other space-curved beam bottom structures.

[0050] 2. The steel structure part of the leveling structure consists of lattice steel plates composed of "field"-shaped vertical plates and a bottom plate. Different from the traditional integral cutting leveling steel plate, the space-curved leveling structure can meet the leveling of the upper space-curved structure and can also be used for the leveling of the space inclined surface structure, with a larger leveling range.

[0051] 3. The lattice steel plates of the leveling structure are aligned with the upper structural partition board and stiffeners. The lattice steel plates are divided considering the magnitude of the force and construction convenience. For those with larger forces, integral plates are used and double-sided groove penetration welding is adopted. For the rest, the steel plates are cut according to construction feasibility and convenience factors, and outside single-sided groove welding is used.

[0052] 4. By adjusting the height and top surface line shape of the lattice steel plates, it can be applicable to various space curves of the upper structure, and appropriate parameters can be selected according to the actual application situation. By adjusting the size, thickness of the bottom plate of the leveling structure, the top surface line shape, cross-sectional size and wall thickness of the lattice steel plates, the force of the leveling structure can be adjusted, and appropriate parameters can be selected according to the actual application situation.

[0053] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or replacements, and these modifications or replacements should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A support leveling structure adapted to the bottom of a spatially curved beam, characterized in that, The structure includes a base plate (1), high-strength concrete, a first lattice steel plate (2), a second lattice steel plate (3), a third lattice steel plate (4), a fourth lattice steel plate (5), a fifth lattice steel plate (6), and a sixth lattice steel plate (7). The first lattice steel plate (2), the second lattice steel plate (3), the third lattice steel plate (4), the fourth lattice steel plate (5), the fifth lattice steel plate (6), and the sixth lattice steel plate (7) are installed alternately on the base plate (1). The high-strength concrete is installed within the space enclosed by the first lattice steel plate (2), the second lattice steel plate (3), the third lattice steel plate (4), the fourth lattice steel plate (5), the fifth lattice steel plate (6), the sixth lattice steel plate (7), and the base plate (1).

2. The support leveling structure for adapting to the bottom of a spatial curved beam according to claim 1, characterized in that, The second lattice steel plate (3), the third lattice steel plate (4) and the fourth lattice steel plate (5) are installed in parallel on the base plate (1) in sequence, and the first lattice steel plate (2), the fifth lattice steel plate (6) and the sixth lattice steel plate (7) are installed in parallel on the base plate (1) in sequence.

3. The support leveling structure for adapting to the bottom of a spatial curved beam according to claim 2, characterized in that, The second lattice steel plate (3), the third lattice steel plate (4) and the fourth lattice steel plate (5) are respectively connected to the first lattice steel plate (2), the fifth lattice steel plate (6) and the sixth lattice steel plate (7).

4. The support leveling structure for adapting to the bottom of a spatial curved beam according to claim 2, characterized in that, The second lattice steel plate (3) is installed in the middle of the base plate (1).

5. The support leveling structure for adapting to the bottom of a spatial curved beam according to claim 3, characterized in that, The first lattice steel plate (2) includes a first sub-plate (21) and a second sub-plate (22), which are respectively installed on both sides of the second lattice steel plate (3) and located on the bottom plate (1).

6. The support leveling structure for adapting to the bottom of a spatial curved beam according to claim 5, characterized in that, The first sub-plate (21) and the second sub-plate (22) are both tilted at a preset angle, and the tilt angle of the second sub-plate (22) is greater than the tilt angle of the first sub-plate (21).

7. The support leveling structure for adapting to the bottom of a spatial curved beam according to claim 5, characterized in that, The third lattice steel plate (4) includes a third sub-plate (41) and a fourth sub-plate (42), which are respectively installed on both sides of the first sub-plate (21).

8. The support leveling structure for adapting to the bottom of a spatial curved beam according to claim 7, characterized in that, The fourth lattice steel plate (5) includes a fifth sub-plate (51) and a sixth sub-plate (52), which are respectively installed on both sides of the second sub-plate (22).

9. A support leveling structure for adapting to the bottom of a spatial curved beam according to claim 8, characterized in that, The fifth lattice steel plate (6) includes a seventh sub-plate (61), an eighth sub-plate (62), a ninth sub-plate (63), and a tenth sub-plate (64). The seventh sub-plate (61) and the eighth sub-plate (62) are respectively installed on both sides of the third sub-plate (41). The ninth sub-plate (63) and the tenth sub-plate (64) are respectively installed on both sides of the fifth sub-plate (51). The eighth sub-plate (62) and the ninth sub-plate (63) are respectively installed on both sides of the second lattice steel plate (3).

10. A support leveling structure for adapting to the bottom of a spatial curved beam according to claim 8, characterized in that, The sixth lattice steel plate (7) includes an eleventh sub-plate (71), a twelfth sub-plate (72), a thirteenth sub-plate (73), and a fourteenth sub-plate (74). The eleventh sub-plate (71) and the twelfth sub-plate (72) are installed on both sides of the fourth sub-plate (42). The thirteenth sub-plate (73) and the fourteenth sub-plate (74) are installed on both sides of the sixth sub-plate (52). The twelfth sub-plate (72) and the thirteenth sub-plate (73) are installed on both sides of the second lattice steel plate (3).

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