A kind of bolt disengaging and error-proofing device for split steel formwork

Abstract

The utility model provides a kind of bolt disengaging and preventing wrong platform device of loosening-free of framed spliced steel formwork, framed spliced steel formwork is divided into left half cover beam bottom formwork and right half cover beam bottom formwork, and the joint of left half cover beam bottom formwork and right half cover beam bottom formwork is spaced apart and provided with rectangular port, and the left width channel steel distribution beam in rectangular port and right width channel steel distribution beam are provided with notch, and the lower leg plate of left width channel steel distribution beam or right width channel steel distribution beam at notch position is provided with bolt hole;The bolt hole of the bolt and support pad steel plate of bolt disengaging and preventing wrong platform device of loosening-free includes, bolt is inserted from the bottom of bolt hole and is welded with distribution beam of bolt hole, and the top end of bolt is lower than the height of channel steel distribution beam, one side of support pad steel plate is welded with bolt, the bottom of support pad steel plate is welded on the lower leg plate of channel steel, and nut and pad pressing plate for leveling left width channel steel distribution beam or right width channel steel distribution beam are installed on bolt.The wrong platform device of preventing of this application is convenient to assemble and disassemble, and can prevent the problem of wrong platform that easily occurs when cover beam bottom formwork is installed.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge cap beam formwork construction, specifically a bolt-free and anti-misalignment device for segmented spliced ​​steel formwork. Background Technology

[0002] In bridge engineering, the cap beam, as a key load-bearing structure atop the piers, plays a crucial role in transferring loads from the superstructure to the substructure. Currently, cap beam construction mainly employs two mainstream techniques: the clamping method and the through-bar method. While these meet engineering requirements to some extent, significant technical limitations remain in key construction stages such as formwork installation and dismantling. Existing mainstream cap beam formwork construction systems consist of composite steel sections. Although these composite steel systems possess good load-bearing capacity, their large weight and bulky size pose numerous challenges for high-altitude operations. The existing cap beam formwork construction system requires the individual splicing and dismantling of each member. In the confined space of high-altitude operations, workers have to spend a significant amount of time on tedious formwork assembly and dismantling, severely impacting construction progress and creating numerous safety hazards. With the continuous extension of the construction period, project costs also increase significantly. This traditional construction mode, dominated by manual operation, is clearly no longer suitable for the high standards of efficiency, safety, and economy required in modern bridge engineering. To address this situation, a prefabricated cap beam bottom formwork, spliced ​​in two halves, was designed and applied. However, human error during the installation of the bottom formwork and collisions during multiple material handling processes both affect the high-precision installation of the bottom formwork, resulting in misalignment during construction. Therefore, it is necessary to design an anti-misalignment device suitable for prefabricated cap beam bottom formwork that is spliced ​​in two halves. Summary of the Invention

[0003] The purpose of this utility model is to provide a bolt-free and anti-misalignment device for segmented spliced ​​steel formwork. This bolt-free and anti-misalignment device for segmented spliced ​​steel formwork is quick and easy to install and dismantle, and solves the problem of bottom misalignment that easily occurs when installing the bottom formwork of the cap beam.

[0004] This utility model is achieved by the following technical solution:

[0005] A bolt-free and anti-misalignment device for segmented spliced ​​steel formwork, wherein the segmented spliced ​​steel formwork is divided into a left half cap beam bottom formwork and a right half cap beam bottom formwork. At the bottom of the splice of the left half cap beam bottom formwork and the right half cap beam bottom formwork, corresponding left and right channel steel distribution beams are welded. Rectangular openings are spaced apart at the splice of the left half cap beam bottom formwork and other shaped notches can also be provided. That is, in a designated area at the splice, the left and right channel steel distribution beams are left with notches where the bottom formwork is not fully laid. The left and right channel steel distribution beams within the rectangular openings are provided with slots. The upper leg plate and upper part of the waist plate of the channel steel distribution beam are cut off, exposing the lower leg plate of the channel steel. Bolt holes are provided on the lower leg plates of the left and / or right channel steel distribution beams at the channel opening position. The aforementioned bolt-free disengagement and anti-misalignment device includes bolts and support steel plates. The bolts are inserted from the bottom of the bolt holes and welded to the distribution beam with the bolt holes. The top of the bolt is lower than the height of the channel steel distribution beam, and the bolt head is large enough to support the other channel steel distribution beam. Alternatively, a pad is horizontally welded to the bolt head. One side of the support steel plate is welded to the bolt, and the bottom of the support steel plate is welded to the lower leg plate of the channel steel. A pressure plate and nut are installed on the bolt to level the left or right channel steel distribution beam. Install pressure plates and nuts sequentially on the bolts through the slots. One end of the pressure plate is supported on the support steel plate, and the other end is supported on the waist plate of the two channel steel distribution beams at the slot. Tighten the nuts, and use the bolt heads and pressure plates to clamp and limit the two half of the channel steel distribution beams, so that the bottom templates of the two half of the cap beams are on the same horizontal plane.

[0006] A further preferred embodiment includes a sealing cover plate installed inside the rectangular opening to seal it. The sealing height of the sealing cover plate is consistent with the height of the bottom template.

[0007] A further preferred embodiment is that the height of the support steel plate is not higher than the height of the channel steel at the slot opening position, so as to avoid the inability to level the left or right channel steel distribution beam on the bolts by using the pressure plate and nut because the support steel plate is too high.

[0008] The non-loosening bolt and anti-misalignment device of this segmented splicing steel formwork has a clever structure and is quick and easy to install and dismantle. By setting pressure plates and nuts on the bolts in sequence in the slots of the distribution beams, one end of the pressure plate is supported on the support steel plate, and the other end is supported on the waist plate of the two channel steel distribution beams at the slot. Tightening the nuts, the bolt heads and pressure plates are used to clamp and limit the two half of the channel steel distribution beams, so that the bottom formwork of the two half of the cap beam is on the same horizontal plane, which solves the problem of bottom misalignment that is easy to occur when installing the bottom formwork of the cap beam. Attached Figure Description

[0009] Figure 1This is a schematic diagram of the overall structure of the bolt-free locking and anti-misalignment device for this segmented spliced ​​steel formwork;

[0010] Figure 2 yes Figure 1 Schematic diagram of the cross section along the AA direction;

[0011] Figure 3 yes Figure 2 Partial schematic diagram of the cross-section along the BB direction;

[0012] The names corresponding to the serial numbers in the figure are:

[0013] 1. Left half of the cap beam bottom formwork; 2. Sealing cover plate; 3. Right half of the cap beam bottom formwork; 4. Groove; 5. Pressure plate; 6. Right channel steel distribution beam; 7. Left channel steel distribution beam; 8. Nut; 9. Bolt; 10. Support steel plate; 11. Bolt hole. Detailed Implementation

[0014] To provide a clearer description of this technology, the following detailed explanation is provided in conjunction with the accompanying drawings and embodiments. Example

[0015] A bolt-free and anti-misalignment device for segmented spliced ​​steel formwork, comprising a left half cap beam bottom formwork 1 and a right half cap beam bottom formwork 3. At the bottom of the splice joint of the left half cap beam bottom formwork 1 and the right half cap beam bottom formwork 3, corresponding left channel steel distribution beams 7 and right channel steel distribution beams 6 are welded. Rectangular openings are spaced at the splice joint of the left half cap beam bottom formwork 1 and the right half cap beam bottom formwork 3, leaving gaps in the left channel steel distribution beams 7 and 6 within a designated area at the splice joint. Grooves 4 are provided in the left channel steel distribution beams 7 and 6 within the rectangular openings, allowing the upper leg plates and... At the upper end of the waist plate, the lower leg plate of the channel steel is exposed. The lower leg plate of the left channel steel distribution beam 7 and / or the right channel steel distribution beam 6 at the slot 4 position is provided with bolt holes 11. The aforementioned anti-loosening bolt disengagement and anti-misalignment device includes bolts 9 and support steel plates 10. Bolts 9 are inserted from the bottom of bolt holes 11 and welded to the distribution beam with bolt holes 11. The top of bolts 9 is lower than the height of the channel steel distribution beam, and the bolt head of bolts 9 is large enough to support another channel steel distribution beam, or a pad is horizontally welded to the bolt head. One side of the support steel plate 10 is welded to bolts 9, and the bottom of the support steel plate 10 is welded to the lower leg plate of the channel steel. A pressure plate 5 and a nut 8 are installed on bolts 9 to level the left channel steel distribution beam 7 or the right channel steel distribution beam 6.

[0016] A sealing cover plate 2 is installed inside the rectangular opening to seal it. The sealing height of the sealing cover plate 2 is the same as the height of the bottom template.

[0017] The height of the support steel plate 10 is not higher than the height of the channel steel at the slot 4 position, so as to avoid the problem that the left channel steel distribution beam 7 or the right channel steel distribution beam 6 cannot be leveled on the bolt 9 by using the pressure plate 5 and nut 8 because the support steel plate 10 is too high.

[0018] During the installation of the bottom formwork of the cap beam, the left half of the cap beam bottom formwork 1 and the right half of the cap beam bottom formwork 3 are joined together. The bolt heads of bolts 9 limit the bottom of the left channel steel distribution beam 7 and the right channel steel distribution beam 6. Pressure plates 5 and nuts 8 are then installed sequentially on bolts 9 through slots 4. One end of the pressure plate 5 is supported on the support steel plate 10, and the other end is supported on the waist plate of the two channel steel distribution beams at slot 4. Nuts 8 are tightened, and the bolt heads of bolts 9 and pressure plates 5 are used to clamp and limit the two halves of the channel steel distribution beams, ensuring that the two halves of the cap beam bottom formwork are on the same horizontal plane. Finally, sealing cover plate 2 is installed inside the rectangular opening to complete the sealing of the rectangular opening. The sealing height of sealing cover plate 2 is consistent with the height of the bottom formwork.

[0019] The above description is not intended to limit this application, nor is this application limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this application should fall within the protection scope of this application.

Claims

1. A bolt-free and anti-misalignment device for segmented spliced ​​steel formwork, wherein the segmented spliced ​​steel formwork is divided into a left half cap beam bottom formwork (1) and a right half cap beam bottom formwork (3), and a left half channel steel distribution beam (7) and a right half channel steel distribution beam (6) are welded to the bottom of the splice of the left half cap beam bottom formwork (1) and the right half cap beam bottom formwork (3), characterized in that: Rectangular openings are provided at the joints of the bottom template (1) of the left half of the cap beam and the bottom template (3) of the right half of the cap beam. The left channel steel distribution beam (7) and the right channel steel distribution beam (6) within the rectangular openings are provided with slots (4). The lower leg plates of the left channel steel distribution beam (7) and / or the right channel steel distribution beam (6) at the slot (4) position are provided with bolt holes (11). The aforementioned anti-loosening bolt disengagement and anti-misalignment device includes bolts (9) and support steel plates (10). The bolts (9) are inserted from the bottom of the bolt holes (11) and welded to the distribution beam with bolt holes (11). The top of the bolts (9) is lower than the height of the channel steel distribution beam. One side of the support steel plate (10) is welded to the bolts (9). The bottom of the support steel plate (10) is welded to the lower leg plate of the channel steel. The bolts (9) are equipped with pads (5) and nuts (8) to level the left channel steel distribution beam (7) or the right channel steel distribution beam (6).

2. The bolt-free and anti-misalignment device for segmented splicing steel formwork according to claim 1, characterized in that: A sealing cover plate (2) is installed inside the rectangular opening to complete the sealing of the rectangular opening.

3. The bolt-free locking and anti-misalignment device for segmented splicing steel formwork according to claim 1, characterized in that: The height of the support steel plate (10) is not higher than the height of the channel steel at the location of the slot (4).

Images