An adjustable pier structure

Abstract

The utility model discloses an adjustable pier structure is applied to connect arc inclined roof floor and prefabricated stand board, and prefabricated stand board is provided with a plurality of, and the first side lap joint of the bottom of prefabricated stand board is fixed to the top of adjacent prefabricated stand board, forms the step like stand, adjustable pier structure includes connecting assembly and pier column, and connecting assembly sets up in arc inclined roof floor, pier column sets up one to one with prefabricated stand board, and pier column is parallel to vertical direction and sets up, and the bottom of pier column is welded and is fixed to connecting assembly, and the top of pier column is provided with nut, and the second side of prefabricated stand board is provided with the reserved through -hole in the position of nut, and the reserved through -hole is provided with bolt in clearance fit, and the bottom of bolt extends to the outside of reserved through -hole, and is screwed in nut, and the outside wall of bolt is filled with concrete part between the wall of reserved through -hole, the utility model discloses realize accurate and fast installation to prefabricated stand board and arc inclined roof floor.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to an adjustable support structure. Background Technology

[0002] With the construction of sports venues and facilities in my country, in order to meet the requirements of prefabrication and on-site aesthetics, more and more stadiums are using precast concrete grandstand panels assembled on curved sloping roof slabs to form the curved grandstands. On-site use of precast concrete grandstand panels reduces the difficulty of grandstand construction and significantly shortens the construction period. In addition, the fair-faced concrete effect of the precast concrete grandstand panels also improves the overall forming effect of the grandstand area in the stadium.

[0003] Currently, there are two main methods for connecting precast concrete grandstand slabs to curved sloping roof slabs. The first method uses cast-in-place concrete supports to back the precast grandstand slabs. However, this method still relies on conventional casting and formwork, resulting in lower construction efficiency, insufficient environmental friendliness, and poor quality control compared to prefabricated buildings. The second method uses embedded steel beams to connect and fix the precast concrete grandstand slabs. Specifically, pins are pre-installed on the main and secondary beams of the steel frame and on the precast grandstand slabs. These pins connect the main and secondary beams of the steel frame to the precast grandstand slabs. However, this method requires high precision in pin alignment, and accumulated deviations during on-site steel structure installation and precast grandstand slab installation can easily lead to inaccurate positioning or misalignment later. Therefore, there is an urgent need for a support structure that enables precise and rapid installation of precast grandstand slabs to curved sloping roof slabs. Utility Model Content

[0004] In view of this, the present invention provides an adjustable support structure to solve the problem that the existing technology lacks a support structure that enables precise and rapid installation of prefabricated grandstand panels and curved sloping roof slabs.

[0005] This utility model provides an adjustable support structure for connecting an arc-shaped sloping roof slab and a prefabricated grandstand slab. Multiple prefabricated grandstand slabs are arranged horizontally, with the bottom edge of each slab overlapping and fixed to the top of an adjacent slab, forming a stepped grandstand. The adjustable support structure includes:

[0006] A connecting component is disposed within the curved sloping roof slab;

[0007] Multiple support columns are arranged one-to-one with the precast grandstand panels. The support columns are arranged parallel to the vertical direction. The bottom end of the support column is welded and fixed to the connecting assembly. The top end of the support column is provided with a nut. A reserved through hole is provided on the second side of the precast grandstand panel corresponding to the position of the nut. A bolt is fitted into the reserved through hole with clearance. The bottom end of the bolt extends to the outside of the reserved through hole and is tightened to the nut. The outer wall of the bolt and the surrounding wall of the reserved through hole are filled with concrete.

[0008] According to the adjustable support structure of this utility model, it has at least the following beneficial effects:

[0009] By setting a support column at the location of each precast grandstand panel's support point (i.e., the second side of the bottom end of the precast grandstand panel), and the bottom end of the support column can be directly welded and fixed to the connecting component, a clear load transfer path is formed, enabling the precast grandstand panel to be stably connected to the curved sloping roof slab. At the same time, by assembling bolts in a clearance fit into the reserved through holes, during the process of assembling the precast grandstand panel onto the top of the corresponding support column, the bolts can be adjusted radially along the reserved through holes, eliminating the accumulated deviations caused by the assembly and installation of multiple precast grandstand panels, ensuring the positioning accuracy of subsequent precast grandstand panels, and thus achieving precise and rapid installation of the precast grandstand panels and the curved sloping roof slab.

[0010] In one optional embodiment, the connecting assembly includes embedded pads and pre-embedded reinforcing bars. The number of embedded pads is the same as the number of pier columns. The bottom end of each pier column is connected to the top surface of the embedded pad. The top surface of the embedded pad is flush with the top surface of the curved sloping roof slab. Each embedded pad has a pre-embedded reinforcing bar connected to one end away from the pier column.

[0011] In one optional embodiment, the embedded steel bar is arranged in an L-shape, with the first part of the embedded steel bar being parallel to the embedded pad, and the second part of the embedded steel bar being connected to the end of the embedded pad away from the pier column.

[0012] In one alternative embodiment, the projected area of ​​the pier column in the vertical direction is smaller than the projected area of ​​the embedded pad in the vertical direction.

[0013] In one alternative embodiment, the connecting assembly includes a plurality of connecting secondary beams, the number of which is the same as the number of the pier columns, and the bottom end of the pier columns is connected to the top surface of the connecting secondary beams.

[0014] In one optional embodiment, the curved sloping roof slab is provided with a main beam at one end in the vertical direction away from the support column. The connecting assembly includes multiple leveling supports, the number of which is the same as the number of support columns. The bottom end of the leveling support is welded and fixed to the main beam. The leveling support has a horizontally set top surface. The bottom end of the support column is connected to the top surface of the leveling support.

[0015] In one optional embodiment, the pier column is a steel pipe column, and a steel plate is welded to the top of the pier column. Two nuts are welded to the steel plate, and the two nuts are arranged opposite each other on both sides of the pier column along a first direction.

[0016] In one optional embodiment, the outer wall of the pier column is provided with a first anti-corrosion coating.

[0017] And / or, the outer wall of the prefabricated grandstand panel is provided with a grouting port that communicates with the reserved through hole.

[0018] In one optional embodiment, a height adjustment component is provided between the pier column and the precast grandstand panel, and the height adjustment component is sleeved on the nut and the bolt.

[0019] In one optional embodiment, the height adjustment component includes a separately configured rubber support and a plurality of rubber gaskets. The rubber support is sleeved on the outside of the nut and the bolt, the rubber gaskets are sleeved on the outside of the bolt, and the rubber gaskets are disposed between the rubber support and the prefabricated grandstand panel. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure connecting the curved sloping roof slab and the prefabricated grandstand slab in the first embodiment of this utility model;

[0022] Figure 2 for Figure 1 Partial structural diagram;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4This is a side view of the assembly of the pier column and the prefabricated grandstand panel in the first embodiment of this utility model.

[0025] Figure 5 This is a top view of the assembly of the support column, steel plate, and nuts in this embodiment;

[0026] Figure 6 This is a front view structural diagram of the second embodiment of the present invention, showing the connection between the curved sloping roof slab and the prefabricated grandstand slab.

[0027] Figure 7 This is a front view structural diagram of the third embodiment of the present invention, showing the connection between the curved sloping roof slab and the prefabricated grandstand slab.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Curved sloping roof slab, 110-Main beam, 200-Precast grandstand slab, 210-Reserved through hole, 220-Concrete section, 230-Grouting port, 300-Support column, 310-Nut, 320-Bolt, 330-Steel plate, 340-Inclined surface, 410-Embedded pad, 420-Embedded steel bar, 430-Connecting secondary beam, 440-Leveling support, 510-Rubber support, 520-Rubber gasket. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0033] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0034] An adjustable support structure according to an embodiment of the present invention is used to connect an arc-shaped sloping roof slab 100 and a prefabricated grandstand slab 200. Multiple prefabricated grandstand slabs 200 are provided, arranged horizontally. The first side of the bottom end of each prefabricated grandstand slab 200 overlaps and is fixed to the top of an adjacent prefabricated grandstand slab 200, forming a stepped grandstand. The adjustable support structure includes a connecting component and support columns 300. The connecting component is disposed within the arc-shaped sloping roof slab 100. The support columns 300 are connected one-to-one with each prefabricated grandstand slab 200. Correspondingly, the pier column 300 is arranged parallel to the vertical direction. The bottom end of the pier column 300 is welded and fixed to the connecting assembly. The top end of the pier column 300 is provided with a nut 310. A reserved through hole 210 is provided on the second side of the precast grandstand plate 200 corresponding to the position of the nut 310. A bolt 320 is fitted in the reserved through hole 210 with clearance. The bottom end of the bolt 320 extends to the outside of the reserved through hole 210 and is tightened to the nut 310. The outer wall of the bolt 320 and the surrounding wall of the reserved through hole 210 are filled with concrete 220.

[0035] The adjustable support structure of this embodiment provides a support column 300 at the support point of each prefabricated grandstand panel 200 (i.e., the second side of the bottom end of the prefabricated grandstand panel 200). The bottom end of the support column 300 can be directly welded and fixed to the connecting component, forming a clear load transfer path, so as to stably connect the prefabricated grandstand panel 200 to the curved sloping roof slab 100. At the same time, by assembling the bolts 320 in the reserved through holes 210 with a clearance fit, the bolts 320 can be adjusted radially in the reserved through holes 210 during the assembly of the prefabricated grandstand panel 200 to the top of the corresponding support column 300. This eliminates the accumulated deviation caused by the assembly and installation of multiple prefabricated grandstand panels 200, ensures the positioning accuracy of the subsequent prefabricated grandstand panels 200, and thus achieves accurate and rapid installation of the prefabricated grandstand panel 200 and the curved sloping roof slab 100.

[0036] It should be noted that the pier column 300, connecting components, and prefabricated grandstand panel 200 are separate components, which are transported to the site and then assembled. The pier column 300 can be prefabricated independently in the factory in a standardized manner. During the mass production process in the factory, advanced equipment and a strict quality control system are used to ensure that the dimensional accuracy, material performance, and other aspects of each pier column 300 meet high standards. The standardized design makes the pier column 300 universal and interchangeable, reducing errors and uncertainties in on-site construction.

[0037] It should be noted that the pier column 300 is mass-produced in the factory, and before being transported to the site for installation, the connecting components are poured simultaneously with the curved sloping roof slab 100. This allows the connecting components to be pre-embedded in the curved sloping roof slab 100, thereby reducing or eliminating the on-site technical downtime and helping to reduce the technical difficulty of construction.

[0038] It should be noted that after adjusting the bolt 320 to the set position radially within the reserved through hole 210, grout can be injected into the reserved through hole 210, and the two can be fixed after the grout solidifies into the concrete part 220, thus achieving rapid installation.

[0039] It should be noted that in this embodiment, the stepped grandstand is divided into multiple prefabricated grandstand panels 200. The multiple prefabricated grandstand panels 200 are arranged sequentially in the vertical direction and overlapped end to end in the horizontal direction to achieve the architectural effect of "using straight lines instead of curves". In addition, in this embodiment, during the process of assembling the prefabricated grandstand panels 200 onto the top of the corresponding support columns 300, the bolts 320 can be adjusted radially within the reserved through holes 210 to eliminate the installation deviation of using straight lines instead of curves, ensuring the positioning accuracy of the prefabricated grandstand panels 200, thereby achieving precise and rapid installation of the prefabricated grandstand panels 200 and the curved sloping roof slab 100.

[0040] It should be noted that in this embodiment, the support column 300 and the connecting component are set separately and fixed together by welding. During the welding and fixing process of the support column 300 and the connecting component, the position of the support column 300 relative to the connecting component is adjusted horizontally with the support point of the prefabricated grandstand panel 200 as the measurement reference. The welding position of the support column 300 is accurately positioned, eliminating the accumulated deviation caused by the assembly and installation of multiple prefabricated grandstand panels 200. This ensures the positioning accuracy of the prefabricated grandstand panel 200, thereby achieving the architectural effect of "straight instead of curved" on the basis of accurate and rapid installation of the prefabricated grandstand panel 200 and the curved sloping roof slab 100.

[0041] It is understood that the first side and the second side mentioned in the text refer to the opposite sides of the prefabricated grandstand panel 200 along the horizontal direction. For ease of description, this embodiment uses... Figure 1The first side is described as follows: the prefabricated grandstand panel 200 overlaps with one side of the adjacent prefabricated grandstand panel 200 in the horizontal direction.

[0042] like Figure 1 and Figure 2 As shown, in some embodiments, the connecting assembly includes embedded pads 410 and pre-embedded reinforcing bars 420. The number of embedded pads 410 is the same as the number of pier columns 300. The bottom end of the pier column 300 is connected to the top surface of the embedded pad 410. The top surface of the embedded pad 410 is flush with the top surface of the curved sloping roof slab 100. Each embedded pad 410 has a pre-embedded reinforcing bar 420 connected to one end away from the pier column 300. By aligning the top surface of the embedded pad 410 with the top surface of the curved sloping roof slab 100, the vertical spacing between the embedded pad 410 and the corresponding precast grandstand slab 200 is kept consistent, thus ensuring that the height of each support column 300 is consistent, which helps reduce construction difficulty. On the other hand, it effectively prevents cracks from appearing at the concrete interface between the embedded pad 410 and the curved sloping roof slab 100, thereby effectively preventing subsequent leakage and facilitating waterproof joint treatment.

[0043] It should be noted that by connecting a pre-embedded steel bar 420 to one end of the embedded pad 410 away from the support column 300, the pre-embedded steel bar 420 can be connected to the steel mesh of the curved sloping roof slab 100. This ensures that the embedded pad 410 is not prone to displacement during the synchronous pouring of the connecting components and the curved sloping roof slab 100, and that the top surface of the embedded pad 410 is flush with the top surface of the curved sloping roof slab 100 after the pouring is completed, effectively avoiding the phenomenon of concavity and convexity.

[0044] It should be noted that the embedded pad 410, the pre-embedded steel bar 420, and the curved sloping roof slab 100 are set separately. The embedded pad 410 can be prefabricated independently in the factory in a standardized manner. During the mass production process in the factory, advanced equipment and a strict quality control system are used to ensure that the dimensional accuracy and material performance of each embedded pad 410 meet high standards. The standardized design makes the embedded pad 410 universal and interchangeable, reducing errors and uncertainties in on-site construction.

[0045] It should be noted that before the connecting components are poured and constructed simultaneously with the curved sloping roof slab 100, the position of the embedded pad 410 relative to the curved sloping roof slab 100 is adjusted horizontally using the support point of the precast grandstand slab 200 as the measurement benchmark. This ensures the precise positioning of the embedded pad 410 and eliminates construction errors in the curved sloping roof slab 100 (such as concrete vibration). This ensures the positioning accuracy of the precast grandstand slab 200, thereby achieving the "straight instead of curved" architectural effect based on the precise and rapid installation of the precast grandstand slab 200 and the curved sloping roof slab 100.

[0046] Understandably, specifically, the embedded steel bar 420 and the embedded pad 410 are connected by through-hole plug welding, and the anchor point, quantity, and anchorage length of the embedded steel bar 420 must meet the structural stress requirements.

[0047] To improve the connection strength between the pier column 300 and the embedded plate 410, such as Figure 2 and Figure 4 As shown, specifically, the bottom end of the support column 300 is set as an inclined surface 340, and the inclined surface 340 is set parallel to the top surface of the embedded pad 410.

[0048] Specifically, the top surface of the embedded part pad 410 is provided with a second anti-corrosion coating, which gives the embedded part pad 410 better weather resistance and extends its service life.

[0049] like Figure 2 As shown, specifically, the embedded steel bar 420 is L-shaped, with the first part of the embedded steel bar 420 parallel to the embedded pad 410, and the second part connected to the end of the embedded pad 410 away from the support column 300. This arrangement helps ensure that the embedded pad 410 is not easily misaligned during the synchronous pouring of the connecting assembly and the curved sloping roof slab 100, thus ensuring that the top surface of the embedded pad 410 is flush with the top surface of the curved sloping roof slab 100 after pouring, effectively avoiding any concave or convex phenomena.

[0050] like Figure 2As shown, specifically, the vertical projection area of ​​the support column 300 is smaller than the vertical projection area of ​​the embedded pad 410. This arrangement provides sufficient space on the top surface of the embedded pad 410 for horizontal adjustment of the support column 300 relative to it. During the welding and fixing process between the support column 300 and the embedded pad 410, the position of the support column 300 relative to the embedded pad 410 is adjusted horizontally using the prefabricated grandstand panel 200 as a measurement reference. This accurately positions the welding position of the support column 300, eliminates accumulated installation deviations of the embedded pad 410, and ensures the positioning accuracy of the prefabricated grandstand panel 200. Thus, it achieves a "straight instead of curved" architectural effect based on the precise and rapid installation of the prefabricated grandstand panel 200 and the curved sloping roof slab 100.

[0051] It is understandable that the horizontal adjustment here refers to the movement of the pier column 300 in any direction on a horizontal plane perpendicular to the vertical direction.

[0052] like Figures 2 to 4 As shown, in some embodiments, the support column 300 is a steel pipe column, and a steel plate 330 is welded to the top of the support column 300. Two nuts 310 are welded to the steel plate 330, and the two nuts 310 are arranged opposite each other on both sides of the support column 300 along a first direction. This arrangement increases the number of connection nodes between the support column 300 and the prefabricated grandstand slab 200, improving connection stability. Furthermore, during the welding and fixing of the nuts 310 to the steel plate 330, the position of the nuts 310 relative to the steel plate 330 can be adjusted horizontally using the prefabricated grandstand slab 200 as a measurement reference, precisely positioning the welding position of the nuts 310. This eliminates accumulated deviations after the assembly and installation of multiple prefabricated grandstand slabs 200, ensuring the positioning accuracy of the prefabricated grandstand slab 200. This achieves a "straight instead of curved" architectural effect based on the precise and rapid installation of the prefabricated grandstand slab 200 and the curved sloping roof slab 100.

[0053] It is understandable that the cross-sectional area of ​​steel plate 330 perpendicular to the vertical direction is greater than the cross-sectional area of ​​pier column 300 perpendicular to the vertical direction.

[0054] It is understandable that the first direction in the text refers to the width direction of the prefabricated grandstand panel 200. For ease of description, it is used as... Figure 4 The first direction is described as the width direction of the prefabricated grandstand panel 200.

[0055] Specifically, the outer wall of the pier column 300 is provided with a first anti-corrosion coating, which gives the pier column 300 better weather resistance and extends its service life.

[0056] like Figure 2 and Figure 3As shown, specifically, the outer wall of the prefabricated grandstand panel 200 is provided with a grouting port 230 that communicates with the reserved through hole 210, so as to facilitate the injection of high-grade non-shrink cement-based grout into the reserved through hole 210, filling the gap between the reserved through hole 210 and the bolt 320, and improving the connection stability.

[0057] In some embodiments, a height adjustment component is provided between the pier column 300 and the precast grandstand slab 200. The height adjustment component is sleeved on the nut 310 and the bolt 320. By selecting height adjustment components of different height sizes and filling them between the pier column 300 and the precast grandstand slab 200, the height position of the precast grandstand slab 200 can be finely adjusted, thereby realizing the function of vertical adjustment of the precast grandstand slab 200.

[0058] It should be noted that the height adjustment component is fitted with nut 310 and bolt 320 to limit the extreme position of the horizontal movement of the height adjustment component, effectively preventing the height adjustment component from coming off between the support column 300 and the precast grandstand panel 200.

[0059] Specifically, the height adjustment assembly includes a separately configured rubber support 510 and several rubber pads 520. The rubber support 510 is fitted over the nut 310 and the bolt 320, and the rubber pads 520 are fitted over the bolt 320. The rubber pads 520 are positioned between the rubber support 510 and the prefabricated grandstand panel 200. By separating the rubber support 510 and the rubber pads 520, a corresponding number of rubber pads 520 can be flexibly selected and stacked on top of the rubber support 510 according to the needs of on-site installation, thereby obtaining height adjustment assemblies of different height dimensions and realizing the function of vertically adjusting the prefabricated grandstand panel 200.

[0060] like Figure 6 As shown, in some embodiments, the connecting assembly includes multiple connecting secondary beams 430, the number of which is the same as the number of the support columns 300, and the bottom end of the support column 300 is connected to the top surface of the connecting secondary beam 430; using the connecting secondary beams 430 that are integrated into the curved sloping roof slab 100 as the installation base reduces the assembly process.

[0061] The connecting secondary beam 430 is set parallel to the second direction, which refers to the tangent direction of the top point of the part of the curved sloping roof slab 100 that overlaps with the connecting secondary beam 430 along the thickness direction of the curved sloping roof slab 100.

[0062] like Figure 7As shown, in some embodiments, the curved sloping roof slab 100 has a main beam 110 at one end vertically away from the support column 300. The connecting assembly includes multiple leveling supports 440, the number of which is the same as the number of support columns 300. The bottom end of each leveling support 440 is welded and fixed to the main beam 110. Each leveling support 440 has a horizontally positioned top surface, and the bottom end of each support column 300 is connected to the top surface of the leveling support 440. This arrangement allows for a straight cut, facilitating the welding and fixing of the support column 300 to the top surface of the leveling support 440.

[0063] It should be noted that this embodiment can achieve all-round adjustment of horizontal and vertical adjustment, satisfying the all-round adjustment of the bottom end of the support column 300 with the curved sloping roof slab 100 and the top end of the support column 300 with the prefabricated grandstand slab 200; controlling the installation accuracy of the support column 300 layer by layer, realizing the prefabricated grandstand slab 200 prefabricated rapid construction and green construction.

[0064] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. An adjustable support structure is used to connect an arc-shaped sloping roof slab (100) and a prefabricated grandstand slab (200), wherein multiple prefabricated grandstand slabs (200) are provided, the multiple prefabricated grandstand slabs (200) are arranged horizontally, and the first side of the bottom end of each prefabricated grandstand slab (200) is overlapped and fixed to the top of an adjacent prefabricated grandstand slab (200) to form a stepped grandstand; characterized in that, The adjustable support structure includes: A connecting component is disposed within the curved sloping roof slab (100); Multiple support columns (300) are arranged one-to-one with the precast grandstand panel (200). The support columns (300) are arranged parallel to the vertical direction. The bottom end of the support column (300) is welded and fixed to the connecting assembly. The top end of the support column (300) is provided with a nut (310). A reserved through hole (210) is provided on the second side of the precast grandstand panel (200) corresponding to the position of the nut (310). A bolt (320) is fitted with the reserved through hole (210) with clearance. The bottom end of the bolt (320) extends to the outside of the reserved through hole (210) and is tightened to the nut (310). The outer wall of the bolt (320) and the surrounding wall of the reserved through hole (210) are filled with concrete (220).

2. The adjustable support structure according to claim 1, characterized in that, The connecting assembly includes embedded pads (410) and pre-embedded reinforcing bars (420). The number of embedded pads (410) is the same as the number of pier columns (300). The bottom end of the pier column (300) is connected to the top surface of the embedded pad (410). The top surface of the embedded pad (410) is flush with the top surface of the curved sloping roof slab (100). Each embedded pad (410) has a pre-embedded reinforcing bar (420) connected to one end away from the pier column (300).

3. The adjustable support structure according to claim 2, characterized in that, The embedded steel bar (420) is L-shaped. The first part of the embedded steel bar (420) is parallel to the embedded pad (410), and the second part of the embedded steel bar (420) is connected to the end of the embedded pad (410) away from the support column (300).

4. The adjustable support structure according to claim 2, characterized in that, The vertical projection area of ​​the pier column (300) is smaller than the vertical projection area of ​​the embedded pad plate (410).

5. The adjustable support structure according to claim 1, characterized in that, The connecting assembly includes a plurality of connecting secondary beams (430), the number of which is the same as the number of the pier columns (300), and the bottom end of the pier column (300) is connected to the top surface of the connecting secondary beam (430).

6. The adjustable support structure according to claim 1, characterized in that, The curved sloping roof slab (100) has a main beam (110) at one end vertically away from the support column (300). The connecting assembly includes multiple leveling supports (440), the number of which is the same as the number of support columns (300). The bottom end of the leveling support (440) is welded and fixed to the main beam (110). The leveling support (440) has a horizontally set top surface. The bottom end of the support column (300) is connected to the top surface of the leveling support (440).

7. An adjustable support structure according to any one of claims 1 to 6, characterized in that, The pier column (300) is a steel pipe column, and a steel plate (330) is welded to the top of the pier column (300). Two nuts (310) are welded on the steel plate (330), and the two nuts (310) are arranged opposite to each other on both sides of the pier column (300) along a first direction.

8. An adjustable support structure according to claim 7, characterized in that, The outer wall of the support column (300) is provided with a first anti-corrosion coating; And / or, the outer side wall of the prefabricated grandstand panel (200) is provided with a grouting port (230) communicating with the reserved through hole (210).

9. An adjustable support structure according to any one of claims 1 to 6, characterized in that, A height adjustment component is provided between the support column (300) and the prefabricated grandstand panel (200), and the height adjustment component is sleeved on the nut (310) and the bolt (320).

10. An adjustable support structure according to claim 9, characterized in that, The height adjustment component includes a separate rubber support (510) and several rubber pads (520). The rubber support (510) is sleeved on the nut (310) and the bolt (320), and the rubber pads (520) are sleeved on the bolt (320). The rubber pads (520) are disposed between the rubber support (510) and the prefabricated grandstand panel (200).

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