Bottom die supporting structure between structural sections

Abstract

The utility model relates to the technical field of formwork construction, in particular to a structure section bottom formwork supporting structure which comprises two longitudinal beams arranged oppositely, and guide grooves are formed in the longitudinal beams. One end of the supporting cross beam is connected with one longitudinal beam of the supporting cross beam, and the other end of the supporting cross beam is connected with the other longitudinal beam of the supporting cross beam; the connecting parts are used for fixedly connecting the longitudinal beams with the outer vertical surfaces of the beam grids; the connecting component comprises embedded bolts, bolt sleeves and bolt caps, the bolt caps are used for reserving cavities in the outer vertical faces of the beam lattices, all the embedded bolts are embedded in the beam lattices, the outer side ends of the embedded bolts are located in the cavities, the bolt sleeves are in threaded connection with the outer side ends of the embedded bolts, and the bolt sleeves are arranged in the guide grooves in a penetrating mode. According to the bottom die supporting structure, the two longitudinal beams are fixedly connected with the outer vertical face of the beam lattice through the connecting parts, the supporting cross beams are erected on the longitudinal beams and used for supporting the bottom die, the structural design is simple, mounting and dismounting are convenient, and the construction speed is greatly increased.

Description

Technical Field

[0001] This utility model relates to the field of template construction technology, and in particular to a bottom formwork support structure between structural sections. Background Technology

[0002] High-pile beam-slab wharves are a widely used structural form in port engineering, with their superstructure typically consisting of beams and panels. During the construction of the superstructure, to improve construction efficiency and ensure project quality, the panels between the beams are usually prefabricated in a factory. This method significantly shortens on-site construction time and improves project efficiency. However, wharf structures are subject to various external factors during use, such as temperature changes, loads, and tidal fluctuations, causing expansion and contraction. To accommodate this deformation and prevent stress concentration or failure due to rigid connections, expansion joints need to be installed between adjacent structural sections. Therefore, the panels between adjacent structural sections must be cast-in-place to ensure the integrity and functionality of the structure.

[0003] Currently available bottom formwork support structures are mostly ill-suited to the construction requirements between wharf structural sections. For example, Chinese utility model patent CN220620086U discloses a bottom formwork support device for cast-in-place crossbeams in high-pile wharves. This device involves pre-embedding support channel steel in the pile core concrete, with a spreader beam installed on top of the support channel steel to transfer the tensile force from the precision-rolled threaded steel to the support channel steel. This bottom formwork support structure is relatively complex, inconvenient to install and dismantle, and significantly slows down the construction progress. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of existing bottom formwork support structures, which are relatively complex, inconvenient to install and dismantle, have low construction efficiency, and are difficult to adapt to the construction requirements between wharf structural sections, and to provide a bottom formwork support structure between structural sections.

[0005] In a first aspect, this utility model provides a structural inter-segment bottom formwork support structure, comprising: two longitudinal beams arranged opposite to each other, each longitudinal beam having a guide groove extending along its length; a supporting crossbeam, one end of which is connected to one of the longitudinal beams, and the other end of which is connected to the other longitudinal beam; and a connecting component for fixing the longitudinal beams to the outer facade of the beam grid; the connecting component includes: embedded bolts, bolt sleeves, and bolt caps, the bolt caps being used to reserve cavities in the outer facade of the beam grid, all the embedded bolts being embedded within the beam grid, the outer ends of the embedded bolts being located within the cavity, the bolt sleeves being threadedly connected to the outer ends of the embedded bolts, and the bolt sleeves passing through the guide grooves.

[0006] This invention uses connecting components to fix two longitudinal beams to the outer facade of the beam grid. Support beams are erected on the longitudinal beams to support the bottom formwork. In use, multiple such support structures can be installed side-by-side between adjacent structural sections to quickly form a bottom formwork support system. The structure is simple in design, easy to install and disassemble, and significantly improves construction speed.

[0007] During the pouring of the beam grid, bolt caps and pre-embedded bolts are embedded in the beam grid. After the beam grid is poured, the bolt caps are removed, forming a cavity. Bolt sleeves are inserted into the cavity and connected to the pre-embedded bolts, making installation and disassembly simple. All pre-embedded bolts and bolt caps are located inside the beam grid, ensuring a flat exterior surface and not affecting the mechanical properties of the beam grid.

[0008] The bolt sleeves pass through the guide grooves and connect to the longitudinal beams, reducing the positional accuracy requirements for the pre-embedded bolts. The installation position of the longitudinal beams can be adjusted according to the actual bottom formwork height, improving construction efficiency. After use, all parts except the pre-embedded bolts can be recycled and reused, reducing construction costs.

[0009] Preferably, the system further includes a pad, which is installed between the longitudinal beam and the supporting crossbeam.

[0010] The pad is installed between the end of the longitudinal beam and the supporting crossbeam. It can be used as a fine-tuning tool. By changing its thickness or position, construction workers can accurately adjust the height and level of the supporting crossbeam, thereby improving the construction quality of the cast-in-place panel.

[0011] Preferably, the pad includes a horizontal plate and an extension plate, the extension plate extending from the horizontal plate toward the connecting member, and the inner wall of the extension plate abutting against the outer wall of the longitudinal beam.

[0012] With this structural design, the inner wall of the extension plate abuts against the outer wall of the longitudinal beam, increasing the contact area between the pad and the longitudinal beam. This enhances friction and constraint, effectively preventing the pad from shifting or slipping due to load or external interference during construction. It also ensures a more stable connection between the support beam and the longitudinal beam, significantly improving the stability of the entire support structure and reducing the risk of structural failure.

[0013] Preferably, the bolt cap is frustum-shaped and is threadedly connected to the pre-embedded bolt.

[0014] With this structural design, the upper base area of ​​the frustum is smaller than the lower base area. When pre-embedding the bolt cap and pre-embedded bolts, the pre-embedded bolts can be screwed into the bolt cap from the upper base. The lower base of the bolt cap can be flush with the outer surface of the beam grid. After the outer surface of the beam grid is poured, because the bolt cap is frustum-shaped, its wider outer and narrower inner structure prevents it from being stuck by concrete when unscrewing, allowing it to easily detach from the beam grid. This leaves a frustum-shaped cavity, making it easier for the bolt sleeve to enter and align with the pre-embedded bolt, thus completing the threaded connection. This significantly reduces the alignment difficulty during installation, making the connection process smoother and more efficient.

[0015] Preferably, a groove is formed on the bottom surface of the bolt cap.

[0016] This structural design allows for two slots, symmetrically positioned on the underside of the bolt cap. This provides an interface for workers to use specific tools (such as wrenches, screwdrivers, or specialized screwdrivers), making tightening or loosening the bolt cap easier. Compared to a smooth underside, the slots better accommodate tools, reducing slippage during operation and allowing workers to install and remove bolt caps faster and with less effort.

[0017] Preferably, the inner end of the pre-embedded bolt has a dovetail structure.

[0018] This structural design sets the inner side of the embedded bolt, i.e., the end of the embedded bolt away from the outer facade of the beam, as a dovetail structure, such as a Y-shape or more forked structures. This allows it to form a strong mechanical engagement with the concrete, effectively preventing the embedded bolt from being pulled out of the concrete when under tensile force. This significantly improves the anchorage strength between the embedded bolt and the concrete, enabling it to remain stable under heavy loads, vibrations, or impacts, thereby enhancing the reliability of the entire support structure.

[0019] Preferably, the bolt sleeve includes a sleeve portion and a screw portion. The sleeve portion has an internal thread and is threadedly connected to the pre-embedded bolt. The entire sleeve portion is located within the cavity. The screw portion is fixedly connected to the sleeve portion and passes through the guide groove. The screw portion is connected to the longitudinal beam via a nut.

[0020] With this structural design, the sleeve part is connected to the pre-embedded bolts via internal threads, providing high pull-out resistance and load-bearing strength, effectively preventing loosening or falling off, thereby improving the stability and safety of the entire support structure. The sleeve part is entirely located within the cavity, preventing interference between the sleeve part and the guide groove, ensuring that the longitudinal beam is tightly attached to the outer surface of the beam grid, and ensuring the stability of the longitudinal beam connection. The screw part passes through the guide groove, allowing the longitudinal beam to move up and down along the guide groove. After adjusting the position of the longitudinal beam, simply tightening the nut is sufficient to fix the longitudinal beam, facilitating the adjustment of the longitudinal beam height.

[0021] Preferably, the bolt sleeve further includes a washer located between the nut and the longitudinal beam.

[0022] The gasket increases the contact area between the nut and the longitudinal beam, dispersing the local pressure applied by the nut to the longitudinal beam, thereby improving the stability of the connection.

[0023] Preferably, the bolt sleeve further includes a stepped portion located between the sleeve portion and the screw portion.

[0024] With this structural design, the step can be set as a triangle, square, or hexagon, which can be matched with standard wrenches or other tools to provide a reliable point of force, making it easy for construction workers to use tools to install and remove bolt sleeves.

[0025] Preferably, the length of the guide groove is less than the length of the longitudinal beam.

[0026] The length of the guide groove can be slightly less than the length of the longitudinal beam to facilitate on-site welding and manufacturing of the longitudinal beam. The guide groove extends along the length of the longitudinal beam, allowing the bolt sleeve to move and be positioned freely within the entire length of the longitudinal beam. This makes it easier for construction personnel to flexibly adjust the height of the longitudinal beam according to actual needs, significantly improving the adaptability of the support structure.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. This utility model provides a bottom formwork support structure between structural sections. Two longitudinal beams are fixedly connected to the outer facade of the beam grid through connecting components. Support beams are erected on the longitudinal beams to support the bottom formwork. In use, multiple such support structures can be set up side by side between adjacent structural sections to quickly form a bottom formwork support system. The structure design is simple, and the installation and disassembly are convenient, which greatly improves the construction speed.

[0029] 2. This utility model provides a bottom formwork support structure between structural sections. Bolt caps and pre-embedded bolts are pre-embedded in the beam grid. After the beam grid is poured, the bolt caps are removed, forming a cavity. Bolt sleeves are inserted into the cavity and connected to the pre-embedded bolts, making installation and disassembly simple. All pre-embedded bolts and bolt caps are located inside the beam grid, ensuring the flatness of the beam grid's outer facade while not affecting the beam grid's mechanical properties.

[0030] 3. This utility model provides a bottom formwork support structure between structural sections. The bolt sleeve passes through the guide groove and connects to the longitudinal beam, which reduces the positional accuracy requirements of the pre-embedded bolts. The installation position of the longitudinal beam can be adjusted according to the actual bottom formwork height, which improves construction efficiency. After use, except for the pre-embedded bolts, all other parts can be recycled and reused, which reduces construction costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the bottom formwork support structure and beam grid installation between structural sections;

[0032] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0033] Figure 3 This is a schematic diagram of the installation of the longitudinal beam and the pad.

[0034] Figure 4 This is a schematic diagram of the pre-embedded bolt structure;

[0035] Figure 5 This is the front view of the bolt cap;

[0036] Figure 6 Side view of the bolt cap;

[0037] Figure 7 This is a schematic diagram of a bolt sleeve structure.

[0038] Marked in the image:

[0039] 1-Longitudinal beam, 11-Guide groove, 2-Supporting crossbeam, 3-Connecting component, 31-Embedded bolt, 32-Bolt sleeve, 321-Sleeve part, 322-Threaded part, 323-Step part, 33-Bolt cap, 331-Slot, 34-Nut, 35-Washer, 4-Plate, 41-Horizontal plate, 42-Extension plate, 100-Beam grid, 200-Cavity. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0041] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0043] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0044] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0045] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0046] Example 1

[0047] This embodiment provides a bottom formwork support structure between structural sections. This bottom formwork support structure is used during the construction of the wharf superstructure and is erected between adjacent structural sections to support the bottom formwork of the cast-in-place panel.

[0048] Specifically, the inter-segment bottom formwork support structure includes: two longitudinal beams 1, which are arranged opposite each other, and guide grooves 11 are formed in the longitudinal beams 1, extending along the length of the longitudinal beams 1. Specifically, as... Figure 3 As shown, in this embodiment or other embodiments, the longitudinal beam 1 can be welded from two channel steels. The two channel steels can be arranged with their openings facing outwards and back to back, forming a guide groove 11 between the two channel steels.

[0049] Furthermore, the length of the guide groove 11 is less than the length of the longitudinal beam 1. This arrangement facilitates the on-site welding of channel steel to form the longitudinal beam 1. Specifically, the length of the guide groove 11 can be slightly less than the length of the longitudinal beam 1, for example, slightly less by 5-10 cm.

[0050] Support beam 2, such as Figure 1 As shown, one end of the supporting beam 2 is connected to one of its longitudinal beams 1, and the other end of the supporting beam 2 is connected to its second longitudinal beam 1. The supporting beam 2 and the two longitudinal beams 1 are connected to form a U-shaped structure with the opening facing downward. The supporting beam 2 is used to support the bottom formwork above it. In actual use, multiple such supporting structures can be set up side by side between adjacent structural sections to quickly form a bottom formwork support system.

[0051] Connecting component 3 is used to fix the longitudinal beam 1 to the exterior of the beam grid 100.

[0052] like Figure 1 , Figure 2 As shown, the connecting component 3 includes: embedded bolts 31, bolt sleeves 32, and bolt caps 33. The bolt caps 33 are used to reserve a cavity 200 on the outer facade of the beam grid 100. All the embedded bolts 31 are embedded in the beam grid 100. The outer ends of the embedded bolts 31 (e.g., Figure 2 The left end of the pre-embedded bolt 31 shown is located in the cavity 200. The bolt sleeve 32 is threadedly connected to the outer end of the pre-embedded bolt 31. The bolt sleeve 32 passes through the guide groove 11.

[0053] Specifically, such as Figure 5 , Figure 6 As shown, in this embodiment or other embodiments, the bolt cap 33 is frustum-shaped, and the bolt cap 33 is threadedly connected to the pre-embedded bolt 31. With this structural arrangement, the upper base area of ​​the frustum is smaller than the lower base area. When pre-embedding the bolt cap 33 and the pre-embedded bolt 31, the pre-embedded bolt 31 can be first inserted from the upper base surface of the bolt cap 33 (e.g., from the lower base surface). Figure 5Screw the right side of the bolt cap 33 into the bolt cap 33, and screw the bottom surface of the bolt cap 33 (e.g., the right side of the bolt cap 33) into the bolt cap 33. Figure 5 The left side of the bolt cap 33 can be flush with the outer facade of the beam grid 100. After the outer facade of the beam grid 100 is poured, because the bolt cap 33 is frustum-shaped, its outer wider and inner narrower structure prevents it from being stuck by concrete when unscrewing, allowing it to easily detach from the beam grid 100. This leaves a frustum-shaped cavity 200, which allows the bolt sleeve 32 to more easily enter the cavity 200 and align with the pre-embedded bolt 31, thus completing the threaded connection. This significantly reduces the alignment difficulty during installation, making the connection process smoother and more efficient.

[0054] Furthermore, such as Figure 5 , Figure 6 As shown, in this embodiment or other embodiments, a slot 331 is formed on the lower surface of the bolt cap 33. Specifically, the slot 331 can be symmetrically arranged on both sides of the threaded hole inside the bolt cap 33. With this structural arrangement, the slot 331 provides an interface for the construction worker to use specific tools (such as wrenches, screwdrivers, or special screwdrivers), making it easier to tighten or loosen the bolt cap 33. Compared to a smooth lower surface, the slot 331 can better accommodate tools, reduce slippage during operation, and make it easier for the construction worker to complete the installation and removal of the bolt cap 33 faster and with less effort.

[0055] Furthermore, such as Figure 4 As shown, in this embodiment or other embodiments, the inner end of the pre-embedded bolt 31 (e.g.) Figure 4 The right end of the structure is a dovetail. The dovetail structure can be specifically described as follows: Figure 4 The diagram shows a Y-shaped structure with two forks, which can be understood to also be a three-, four-, or even multi-lobed forked structure. With this structural design, the inner side of the embedded bolt 31, i.e., the end of the embedded bolt 31 furthest from the outer facade of the beam grid 100, is set as a dovetail structure. This allows for a strong mechanical engagement with the concrete, effectively preventing the embedded bolt 31 from being pulled out of the concrete under tensile force. This significantly improves the anchorage strength between the embedded bolt 31 and the concrete, ensuring its stability under heavy loads, vibration, or impact, thereby enhancing the reliability of the entire support structure.

[0056] Furthermore, such as Figure 2 , Figure 3 , Figure 7As shown in this embodiment or other embodiments, the bolt sleeve 32 includes a sleeve portion 321 and a threaded portion 322. The sleeve portion 321 has an internal thread, which is threaded to the outer end of the pre-embedded bolt 31. The entire sleeve portion 321 is located within the cavity 200. The threaded portion 322 is fixedly connected to the sleeve portion 321. It can be understood that the threaded portion 322 and the sleeve portion 321 can be manufactured separately and then welded, or they can be integrally formed. The threaded portion 322 passes through the guide groove 11 and is connected to the longitudinal beam 1 by a nut 34.

[0057] With this structural design, the sleeve portion 321 is threadedly connected to the pre-embedded bolt 31 via an internal thread, providing high pull-out resistance and load-bearing strength, effectively preventing loosening or detachment, thereby improving the stability and safety of the entire support structure. The sleeve portion 321 is entirely located within the cavity 200, preventing interference between the sleeve portion 321 and the guide groove 11, ensuring that the longitudinal beam 1 is tightly attached to the outer surface of the beam grid 100, and ensuring the stability of the longitudinal beam 1 connection. The screw portion 322 passes through the guide groove 11, allowing the longitudinal beam 1 to move up and down along the guide groove 11. After adjusting the position of the longitudinal beam 1, simply tightening the nut 34 is sufficient to fix the longitudinal beam 1, facilitating the height adjustment of the longitudinal beam 1.

[0058] Furthermore, such as Figure 2 , Figure 3 As shown, in this embodiment or other embodiments, the bolt sleeve 32 further includes a washer 35, which is located between the nut 34 and the longitudinal beam 1. Specifically, the washer 35 can be a metal washer or a rubber washer. The washer 35 increases the contact area between the nut 34 and the longitudinal beam 1, dispersing the local pressure applied by the nut 34 to the longitudinal beam 1, thereby improving the stability of the connection.

[0059] Furthermore, such as Figure 2 , Figure 3 As shown, in this embodiment or other embodiments, the bolt sleeve 32 further includes a stepped portion 323, which is located between the sleeve portion 321 and the threaded portion 322. Specifically, the stepped portion 323 can be configured as triangular, square, or hexagonal, which can be matched with a standard wrench or other tools to provide a reliable point of force, making it convenient for construction personnel to use tools to install and remove the bolt sleeve 32.

[0060] In this embodiment, two longitudinal beams 1 are fixedly connected to the outer facade of the beam grid 100 via connecting component 3. Support beam 2 is erected on the longitudinal beams 1 to support the bottom formwork. In use, multiple such support structures can be set up side by side between adjacent structural sections to quickly form a bottom formwork support system. The structural design is simple, and installation and disassembly are convenient, greatly improving the construction speed.

[0061] During the pouring of beam grid 100, bolt caps 33 and pre-embedded bolts 31 are pre-embedded inside beam grid 100. After the beam grid 100 is poured, bolt caps 33 are removed, forming a cavity 200. Bolt sleeves 32 are inserted into the cavity 200 and connected to the pre-embedded bolts 31, making installation and disassembly simple. All pre-embedded bolts 31 and bolt caps 33 are located inside beam grid 100, ensuring a flat exterior surface of beam grid 100 without affecting its mechanical properties.

[0062] Bolt sleeve 32 passes through guide groove 11 and connects to longitudinal beam 1, reducing the positional accuracy requirements of pre-embedded bolt 31. The installation position of longitudinal beam 1 can be adjusted according to the actual bottom formwork height, improving construction efficiency. After use, all parts except pre-embedded bolt 31 can be recycled and reused, reducing construction costs.

[0063] Example 2

[0064] Based on Example 1, such as Figure 2 , Figure 3 As shown, the inter-segment bottom formwork support structure provided in this embodiment also includes a pad 4, which is installed between the longitudinal beam 1 and the support beam 2.

[0065] Specifically, the pad 4 includes a horizontal plate 41 and an extension plate 42. The extension plate 42 extends from the horizontal plate 41 toward the connecting member 3. The horizontal plate 41 can be perpendicular to the extension plate 42, so that the cross-section of the pad 4 in this embodiment or other embodiments forms an L-shape. The inner wall of the extension plate 42 abuts against the outer wall of the longitudinal beam 1.

[0066] The pad 4 is installed between the end of the longitudinal beam 1 and the supporting crossbeam 2. It can be used as a fine-tuning tool. By changing its thickness or position, construction workers can precisely adjust the height and level of the supporting crossbeam 2, improving the construction quality of the cast-in-place panel. The inner wall of the extension plate 42 abuts against the outer wall of the longitudinal beam 1, increasing the contact area between the pad 4 and the longitudinal beam 1, thereby improving friction and restraint. This effectively prevents the pad 4 from shifting or slipping due to load or external interference during construction, ensuring a more stable connection between the supporting crossbeam 2 and the longitudinal beam 1. This significantly improves the stability of the entire support structure and reduces the risk of structural failure.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bottom formwork support structure between structural segments, characterized in that, include: Two longitudinal beams (1) are arranged opposite each other, and guide grooves (11) are opened on the longitudinal beams (1), and the guide grooves (11) extend along the length direction of the longitudinal beams (1); A supporting beam (2) is provided, one end of which is connected to one of the longitudinal beams (1), and the other end of which is connected to the second longitudinal beam (1). The connecting component (3) is used to fix the longitudinal beam (1) to the outer facade of the beam grid (100); the connecting component (3) includes: embedded bolts (31), bolt sleeves (32) and bolt caps (33), the bolt caps (33) are used to reserve a cavity (200) on the outer facade of the beam grid (100), all the embedded bolts (31) are embedded in the beam grid (100), the outer end of the embedded bolts (31) is located in the cavity (200), the bolt sleeves (32) are threaded to the outer end of the embedded bolts (31), and the bolt sleeves (32) are inserted into the guide groove (11).

2. The inter-segment bottom formwork support structure according to claim 1, characterized in that, It also includes a pad (4), which is installed between the longitudinal beam (1) and the supporting crossbeam (2).

3. The inter-segment bottom formwork support structure according to claim 2, characterized in that, The pad (4) includes a horizontal plate (41) and an extension plate (42), the extension plate (42) extending from the horizontal plate (41) toward the connecting member (3), and the inner wall of the extension plate (42) abutting against the outer wall of the longitudinal beam (1).

4. The inter-segment bottom formwork support structure according to claim 1, characterized in that, The bolt cap (33) is frustum-shaped and is threadedly connected to the pre-embedded bolt (31).

5. The inter-segment bottom formwork support structure according to claim 4, characterized in that, The bottom surface of the bolt cap (33) has a slot (331).

6. The inter-segment bottom formwork support structure according to claim 1, characterized in that, The inner end of the pre-embedded bolt (31) has a dovetail structure.

7. The inter-segment bottom formwork support structure according to claim 1, characterized in that, The bolt sleeve (32) includes a sleeve portion (321) and a screw portion (322). The sleeve portion (321) has an internal thread and is threadedly connected to the pre-embedded bolt (31). The entire sleeve portion (321) is located inside the cavity (200). The screw portion (322) is fixedly connected to the sleeve portion (321). The screw portion (322) passes through the guide groove (11) and is connected to the longitudinal beam (1) by a nut (34).

8. The inter-segment bottom formwork support structure according to claim 7, characterized in that, The bolt sleeve (32) also includes a washer (35) located between the nut (34) and the longitudinal beam (1).

9. The inter-segment bottom formwork support structure according to claim 7, characterized in that, The bolt sleeve (32) also includes a stepped portion (323) located between the sleeve portion (321) and the screw portion (322).

10. A bottom formwork support structure between structural segments according to any one of claims 1-9, characterized in that, The length of the guide groove (11) is less than the length of the longitudinal beam (1).

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