Curved support

Abstract

This application relates to the field of bridge construction, and more particularly to a curved support structure, comprising: support columns, which are arranged on the support foundation according to the projection plane of the supported object relative to the support foundation, the height of the support columns being adapted to the height between the supported object and the support foundation; horizontal bracing, connecting adjacent support columns; a load-bearing beam, erected on top of the support columns; wedge-shaped pads, placed above the load-bearing beam to accommodate the angle between the load-bearing beam and the supported object; and a distribution beam, laid above the wedge-shaped pads and intersecting with the load-bearing beam, such that the surface formed by the distribution beam mates with the bottom surface of the supported object. The curved support structure of this application is compact and highly stable. The height of its support columns can adapt to the height between the supported object and the support foundation, and the wedge-shaped pads, in conjunction with the angle between the load-bearing beam and the supported object, ensure close contact between the load-bearing beam and the supported object, guaranteeing effective support of the curved support structure for the supported object.

Description

[Technical Field]

[0001] This application relates to the field of bridge construction, and more particularly to a curved support. [Background Technology]

[0002] As bridge design standards continue to improve, the requirements for bridge construction are also becoming increasingly stringent. During bridge construction, certain structures are often built in curved shapes. In particular, for large-span arch bridges built over rivers, the arch ribs are designed in a curved form. Such arch ribs require higher standards for support devices during construction.

[0003] Because the height and angle of the curved structure in the bridge are different at different locations, and the existing support devices for the curved structure are poorly matched with the height and angle of the supported object, the support devices lack effective support for the supported object, resulting in poor overall structural stability. [Summary of the Invention]

[0004] The purpose of this application is to provide a curved support to solve the technical problem that the support height and support angle of existing support devices are poorly matched with the height and angle of the supported object, resulting in the support device lacking effective support for the supported object and poor overall structural stability.

[0005] To achieve this objective, the present application adopts the following technical solution:

[0006] This application provides a curved support, including:

[0007] The support columns are arranged on the support foundation according to the projection plane of the supported object relative to the support foundation, and the height of the support columns is adapted to the height between the supported object and the support foundation.

[0008] A horizontal connection is used to connect adjacent support columns.

[0009] The load-bearing beam is mounted on top of the support column;

[0010] A wedge-shaped pad is placed above the load-bearing beam to match the angle between the load-bearing beam and the supported object;

[0011] A distribution beam is laid above the wedge-shaped pad and intersects with the load-bearing beam, such that the surface formed by the distribution beam mates with the bottom surface of the supported object.

[0012] Furthermore, the support column includes steel pipe piles, and a plurality of the steel pipe piles are evenly distributed within the projection plane of the supported object relative to the support foundation.

[0013] Furthermore, four adjacent steel pipe piles constitute a first column unit, and the steel pipe piles within the same first column unit are connected by the horizontal coupling.

[0014] Optionally, two adjacent column units may share at least two of the steel pipe piles.

[0015] Furthermore, the support column includes concrete piles, which are arranged within the projection plane of the supported object relative to the support foundation.

[0016] Optionally, one or two of the concrete piles constitute a second column unit, and each of the concrete piles is not connected to other support columns.

[0017] Optionally, the support foundation is formed by casting with a mold along a marked line, and the support foundation is embedded with steel plates for fixing the support columns.

[0018] Furthermore, the horizontal bracing includes a first horizontal bracing and a second horizontal bracing. The two ends of the first horizontal bracing are respectively fixed to the top of the adjacent support column, and multiple first horizontal bracings form a preset arc shape. The two ends of the second horizontal bracing are respectively horizontally connected to the bottom of the adjacent support column, and the first horizontal bracing and the second horizontal bracing are reinforced and connected by scissor bracing.

[0019] Optionally, multiple distribution beams are pre-bent so that they are compactly arranged on the load-bearing beam.

[0020] Optionally, part of the distribution beam is fixed to the wedge-shaped pad by welding.

[0021] In one embodiment, the support column is made of φ426×6.5mm steel pipe, and the horizontal bracing is made of φ273×6.5mm steel pipe.

[0022] Compared with the prior art, this application has the following advantages:

[0023] 1. The curved support provided in this application includes support columns, horizontal bracing, load-bearing beams, wedge-shaped pads, and distribution beams. The support columns are installed on the support foundation according to the projection plane of the supported object relative to the support foundation, and their height adapts to the height between the supported object and the support foundation. Adjacent support columns are connected by horizontal bracing to enhance the overall stability of the support columns. A load-bearing beam is mounted at the top of the support column, and the wedge-shaped pads, in coordination with the angle between the load-bearing beam and the supported object, ensure close contact between the load-bearing beam and the supported object, supporting the load of the supported object. The distribution beam is pre-bent according to the parabolic curve of the side arch ribs, laid on-site above the wedge-shaped pads, and intersects with the load-bearing beam, so that the surface formed by the distribution beam matches the bottom surface of the supported object. The curved support structure of this application is compact and highly stable. The height of its support columns can adapt to the height difference between the supported object and the support foundation. Wedge-shaped pads, combined with the angle between the load-bearing beam and the supported object, ensure close contact between the load-bearing beam and the supported object, effectively supporting the load and guaranteeing the curved support's support for the object. Furthermore, the curved support structure of this application can be flexibly assembled on-site, unaffected by terrain, requires no hoisting, and is simple and easy to operate.

[0024] 2. The support column of this application includes steel pipe piles, and a plurality of the steel pipe piles are evenly distributed in the projection plane of the supported object relative to the support foundation, so as to evenly transfer the load of the supported object to the support foundation, avoid uneven stress on the curved support and deformation, and ensure the stability of the overall structure.

[0025] 3. The steel pipe pile of this application forms a first column unit by four adjacent steel pipe piles, and the steel pipe piles in the same first column unit are connected by horizontal bracing, thereby connecting all the steel pipe piles into a whole and strengthening the stability of the overall structure of the steel pipe pile.

[0026] 4. This application arranges concrete piles in the projection plane of the supported object relative to the support foundation. Since the concrete pile structure is stable, it can be set up independently and further enhances the stability of the curved support.

[0027] 5. The horizontal bracing of this application includes a first horizontal bracing and a second horizontal bracing. The two ends of the first horizontal bracing are respectively fixed to the top of the adjacent support column. Multiple first horizontal bracings form a preset arc shape that matches the object to be supported, thereby strengthening the integrity of the support column and evenly transferring the load of the supported object to the support column. The two ends of the second horizontal bracing are respectively connected horizontally to the bottom of the adjacent support column. The first and second horizontal bracings are reinforced by scissor bracing to strengthen the connection between the horizontal bracings.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. [Attached Image Description]

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 This is a schematic diagram of the structure of a curved support provided in one embodiment of this application. For ease of explanation, the supported object is also shown.

[0031] Figure 2 A top view of a curved support provided in one embodiment of this application;

[0032] Figure 3 for Figure 1 A magnified view of the curved support at point A;

[0033] Figure 4 for Figure 1 A magnified view of the curved support at point B.

Detailed Implementation Methods

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] like Figure 1 As shown, this application provides a curved support for supporting curved objects, such as the side arch ribs of a bridge. The side arch ribs include arch ribs 100 and arch seats 200. The curved support can be used to support the arch ribs 100, thereby solving the technical problem that existing support devices have poor matching between their support height and angle and the height and angle of the supported object, resulting in ineffective support and poor overall structural stability. In one embodiment, combined with... Figure 2 As shown, the curved support includes a support column 1, a horizontal bracing 2, a load-bearing beam 3, wedge-shaped pads 4, and a distribution beam 5. Among them,

[0036] After the foundation preloading is qualified and the preloading material is unloaded, the support foundation is poured. The support columns 1 are arranged on the support foundation according to the projection plane of the supported object relative to the support foundation. The number and position of the support columns 1 can be set according to the load of the supported object on the support foundation. For example, the number of support columns 1 can be appropriately increased in the weak parts of the supported object. The height of the support columns 1 is adapted to the height between the supported object and the support foundation, that is, the height of the support columns 1 and the height between the supported object and the support foundation are within a preset error to ensure effective support of the supported object by the support columns 1. Specifically, before the support columns 1 are erected, the distance between the top surface of the support foundation and the supported object can be measured, and the erection height of the support columns 1 can be confirmed based on the actual measurement. The preset error can be that the verticality of the support column 1 is less than or equal to H / 500 and not greater than 5cm, that is, the maximum verticality deviation cannot exceed 5cm, and it cannot exceed one-five-hundredth of the height between the supported object and the support foundation. For example, when the height between the supported object and the support foundation is 30m, then 1 / 500 of 30m is 6cm. In this case, the height error between the support column 1 and the supported object needs to be limited to within 5cm, otherwise it will exceed the operating specifications. If the height between the supported object and the support foundation is 20m, then 1 / 500 of 20m is 4cm. Since 4cm is less than 5cm, it meets the operating specifications, thus strictly controlling the installation height of the support column 1 to ensure effective support of the supported object.

[0037] The curved support structure of this application also includes a horizontal bracing 2, which connects to the adjacent support column 1 to enhance the overall structural stability of the support column 1. During installation of the curved support structure, the support column 1 and the horizontal bracing 2 should be constructed simultaneously. The horizontal bracing 2 can be connected to the support column 1 through butt-welding. The horizontal bracing 2 is a fully welded connection, and the weld thickness must not be less than the base material thickness. The weld surface must be free from defects such as porosity, slag inclusions, arc craters, cracks, and incomplete welds. The next stage of construction can only proceed after the quality of the welded connection to the support column 1 has been inspected and found to be satisfactory.

[0038] Combination Figure 3 As shown, a load-bearing beam 3 is mounted on the top of the support column 1. The wedge-shaped pad 4 above the load-bearing beam 3, in conjunction with the angle between the load-bearing beam 3 and the supported object, ensures that the load-bearing beam 3 is in close contact with the supported object and supports the load of the supported object.

[0039] A distribution beam 5 is laid above the wedge-shaped pad 4, intersecting with the load-bearing beam 3, such that the surface formed by the distribution beam 5 mates with the bottom surface of the supported object. The wedge-shaped pad 4 is also designed to correspond to the included angle between the load-bearing beam 3 and the distribution beam 5. For example, as... Figure 3As shown, when the distribution beam 5 is horizontally positioned, a rectangular wedge-shaped pad 4 is placed on the load-bearing beam 3, at which point the distribution beam 5 intersects the load-bearing beam 3. For example, as... Figure 4 As shown, when the distribution beam 5 needs to be designed with an inclination, triangular wedge-shaped pads 4 are set on the load-bearing beam 3 to ensure that the inclination angle of the supported object carried by the distribution beam 5 meets the design requirements. Before installation, the distribution beam 5 is pre-bent in the processing plant according to the parabolic shape of the side arch ribs.

[0040] The curved support structure of this application is compact and highly stable. The height of its support column 1 can adapt to the height difference between the supported object and the support foundation. Wedge-shaped pads 4, combined with the angle between the load-bearing beam 3 and the supported object, ensure close contact between the load-bearing beam 3 and the supported object, supporting the load and guaranteeing effective support from the curved support. Furthermore, the curved support structure can be flexibly assembled on-site, unaffected by terrain, and requires no hoisting, making it simple and easy to operate. Optionally, the support foundation can be formed by setting up a formwork and casting concrete according to a marked line. The support foundation uses C20 concrete, 0.8m thick. During construction, a 626×626×16mm steel plate can be pre-embedded on the top surface of the concrete for welding and fixing to the support column 1 during installation. The support column 1 and the steel plate can be fixedly connected using fasteners to enhance the stability of the support column 1.

[0041] Furthermore, such as Figure 2 As shown, the support column 1 includes steel pipe piles 11, and a plurality of steel pipe piles 11 are evenly distributed in the projection plane of the supported object relative to the support foundation. In one embodiment, the supported object is a side arch rib, used to support the arch rib 100 of the bridge. The side arch rib is strip-shaped in the projection plane of the support foundation, and the steel pipe piles 11 are evenly distributed in the area near the boundary of the strip to support the corners of the side arch rib, thereby stably supporting the overall structure of the supported object, so as to evenly transfer the load of the supported object to the support foundation, avoid uneven stress on the curved support and deformation, and ensure the stability of the overall structure.

[0042] Optionally, the area corresponding to the steel pipe pile 11 on the support foundation adopts a cement mixing pile composite foundation. That is, after the cement mixing pile is used for reinforcement, a cushion layer is laid on the top surface, and soil is backfilled and compacted in the middle of the cushion layer. After the surface hardens, an 80cm high concrete strip foundation is laid on the cushion layer to form a stable support foundation.

[0043] Further reference Figure 2The four adjacent steel pipe piles 11 form a rectangular first column unit 111. The four steel pipe piles 11 are set at the four corners of the rectangle. The steel pipe piles 11 in the same first column unit 111 are connected sequentially or in pairs by horizontal connectors 2. The steel pipe piles 11 in two adjacent first column units 111 are also connected by horizontal connectors 2, thereby connecting all the steel pipe piles 11 into a whole and strengthening the stability of the overall structure of the steel pipe piles 11.

[0044] Optionally, two adjacent column units 111 share at least two of the steel pipe piles 11, and the remaining steel pipe piles 11 of the two column units 111 are connected to the shared steel pipe piles 11 by a horizontal connector 2. Figure 2 As shown, a single column unit 111 is a quadrilateral structure composed of four steel pipe piles 11, with the four steel pipe piles 11 located at the four corners of the quadrilateral structure. Two adjacent column units 111 share two steel pipe piles 11, meaning that two column units 111 are connected through these two steel pipe piles 11. These two shared steel pipe piles 11 belong not only to their respective column units 111 but also to other adjacent column units 111, thus connecting all the steel pipe piles of the curved support into a single unit.

[0045] Furthermore, the support column 1 also includes concrete piles 12, which are arranged within the projection plane of the supported object relative to the support foundation. Specifically, the concrete piles 12 are placed at locations requiring special reinforcement, such as in the central area of ​​the first column unit 111, and can be connected to the support column 1 via horizontal bracing 2 to strengthen the support of weaker parts of the supported object. The concrete piles 12 can be φ1000mm concrete columns, with a 6I45a I-beam load-bearing beam 3 on top. There is no limiting between the concrete piles 12 and the load-bearing beam 3. Wedge-shaped pads 4 are provided on the load-bearing beam 3, and I25a I-beam distribution beams 5 are distributed on the wedge-shaped pads 4. The distribution beams 5 and the wedge-shaped pads 4 are connected by welding.

[0046] Optionally, one or two of the concrete piles 12 constitute a second column unit, and each concrete pile 12 is not connected to other support columns 1. Since the concrete piles 12 can be formed by casting on the support foundation without separate pile caps, the structure is stable. Therefore, they do not need to be connected to other support columns 1 and can be set up independently. The placement position can be selected according to the actual situation, which is flexible and convenient and can further enhance the stability of the curved support.

[0047] Furthermore, the horizontal bracing 2 includes a first horizontal bracing 21 and a second horizontal bracing 22. The two ends of the first horizontal bracing 21 are respectively fixed to the top of adjacent support columns 1. Multiple first horizontal bracing 21s are sequentially connected to form a pre-defined arc shape, thereby strengthening the integrity of the support columns 1 and evenly transferring the load of the supported object to the support columns 1. The two ends of the second horizontal bracing 22 are respectively horizontally connected to the bottom of adjacent support columns 1. Multiple second horizontal bracing 22s are also sequentially connected to form a single unit. The maximum vertical distance between the first horizontal bracing 21 and the second horizontal bracing 22 does not exceed a preset value. When the vertical distance between them is large, the number of horizontal bracing 2s can be increased to improve the stability of the curved support.

[0048] Furthermore, the first horizontal brace 21 and the second horizontal brace 22 can be reinforced by a scissor brace 6, so that the first horizontal brace 21 and the second horizontal brace 22 are connected as a whole, thus strengthening the connection between the horizontal braces 2. Optionally, the first horizontal brace 21 and the second horizontal brace 22 are respectively welded to the scissor brace 6, and the intersection of the two scissor braces 6 are welded into a whole.

[0049] Optionally, the plurality of the distribution beams 5 are pre-bent so that they are compactly arranged on the load-bearing beams 3. I10 steel bars may also be laid on top of the distribution beams 5, with steel plates placed on the I10 steel bars to support the supported object.

[0050] Optionally, a portion of the distribution beam 5 is fixed to the wedge-shaped pad 4 by welding. Specifically, the distribution beam 5 can be an I-beam with a specification of I25a, and a portion of the side of the I-beam is fixed to the wedge-shaped pad 4 by welding. In addition, one end of a portion of the distribution beam 5 can also be welded to a pre-embedded part in the arch seat 200, connecting to the arch seat 200 to resist the horizontal component force of the curved support.

[0051] In one embodiment, the support column 1 is made of φ426×6.5mm steel pipe, the horizontal bracing 2 is made of φ273×6.5mm steel pipe, the scissor bracing 6 is made of C20a channel steel, and a load-bearing beam 3 of 2I45a I-beam is erected on the top of the support column 1. A wedge-shaped pad 4 is provided on the load-bearing beam 3, and a distribution beam 5 of I25a I-beam is provided on the wedge-shaped pad 4. The wedge-shaped pad 4 and the distribution beam 5 are connected by welding.

[0052] In summary, the curved support provided in this application includes support columns, horizontal bracing, load-bearing beams, wedge-shaped pads, and distribution beams. The support columns are installed on the support foundation according to the projection plane of the supported object relative to the foundation, and their height adapts to the height difference between the supported object and the foundation. Adjacent support columns are connected by horizontal bracing to enhance the overall stability of the support columns. A load-bearing beam is mounted at the top of each support column, and the wedge-shaped pads, in coordination with the angle between the load-bearing beam and the supported object, ensure close contact between the load-bearing beam and the supported object, supporting the load of the supported object. The distribution beams are laid above the wedge-shaped pads and intersect with the load-bearing beams, so that the surface formed by the distribution beams mates with the bottom surface of the supported object. The curved support structure of this application is compact and highly stable. The height of its support columns can adapt to the height difference between the supported object and the support foundation. Wedge-shaped pads, combined with the angle between the load-bearing beam and the supported object, ensure close contact between the load-bearing beam and the supported object, effectively supporting the load and guaranteeing the curved support's support for the object. Furthermore, the curved support structure of this application can be flexibly assembled on-site, unaffected by terrain, requires no hoisting, and is simple and easy to operate.

[0053] While some exemplary embodiments of this application have been shown above, those skilled in the art will understand that changes may be made to these exemplary embodiments without departing from the principles or spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A curved support, characterized in that, include: The support columns are arranged on the support foundation according to the projection plane of the supported object relative to the support foundation. The height of the support columns is adapted to the height between the supported object and the support foundation. The support foundation is formed by casting with a mold according to the marked lines. The support foundation has steel plates embedded in it for fixing the support columns. A horizontal connection is used to connect adjacent support columns. The load-bearing beam is mounted on top of the support column; A wedge-shaped pad is placed above the load-bearing beam to match the angle between the load-bearing beam and the supported object; A distribution beam is laid above the wedge-shaped pad and intersects with the load-bearing beam, such that the surface formed by the distribution beam matches the bottom surface of the supported object; The support column includes steel pipe piles, and multiple steel pipe piles are evenly distributed in the projection plane of the supported object relative to the support foundation. Four adjacent steel pipe piles constitute the first column unit. The support column also includes concrete piles, which are formed by pouring concrete on the support foundation. They do not have separate foundations and are topped with the load-bearing beam. There are no limiting points between the concrete piles and the load-bearing beam, which are used to reinforce the support at specific locations. The concrete piles are arranged in the central area of ​​the first column unit and are connected to the support columns in the first column unit by horizontal bracing. Alternatively, one or two concrete piles can form a second column unit, and each concrete pile is not connected to other support columns.

2. The curved support according to claim 1, characterized in that, The steel pipe piles within the same first column unit are connected by the horizontal coupling.

3. The curved support according to claim 2, characterized in that, Two adjacent column units share at least two of the steel pipe piles.

4. The curved support according to claim 1, characterized in that, The horizontal bracing includes a first horizontal bracing and a second horizontal bracing. The two ends of the first horizontal bracing are respectively fixed to the top of the adjacent support column, and multiple first horizontal bracings form a preset arc shape. The two ends of the second horizontal bracing are respectively horizontally connected to the bottom of the adjacent support column. The first horizontal bracing and the second horizontal bracing are reinforced and connected by scissor bracing.

5. The curved support according to claim 1, characterized in that, Multiple distribution beams are pre-bent so that they are compactly arranged on the load-bearing beam.

6. The curved support according to claim 1, characterized in that, The distribution beam and the wedge-shaped pad are fixed together by welding.

7. The curved support according to claim 1, characterized in that, The support column is made of φ426×6.5mm steel pipe, and the horizontal bracing is made of φ273×6.5mm steel pipe.

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