A door opening support deflection compensation structure and construction method

Abstract

The application discloses a door hole support deflection compensation structure and a construction method, relates to the technical field of building construction, and comprises a support frame, wherein the support frame comprises an upper support strip and a lower support rib, a plurality of supporting pieces are threadedly connected in the lower support rib, and the supporting pieces abut against the upper support strip. The application has the effect of improving deflection deformation of the support frame, balancing internal force of the scaffold, and reducing safety hazards.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to a doorway support deflection compensation structure and construction method. Background Technology

[0002] When erecting scaffolding for construction, openings are reserved in the scaffolding as needed to facilitate the passage of construction workers, construction machinery, or the transport of construction materials to the construction site.

[0003] like Figure 1 As shown, multiple columns 6 are set on both sides of the opening, and a crossbeam 4 is set on top of each column 6. Multiple support frames 1 are attached to the crossbeams 4 on both sides. The support frames 1 are set above the opening, and scaffolding is then erected on top of and on both sides of the support frames 1. Therefore, the support frames 1 directly bear the weight of the scaffolding above.

[0004] Over time, the support frame is prone to downward deflection under the pressure of the scaffolding above. This deflection will increase the stress on the scaffolding on both sides of the support frame, leading to an imbalance of internal forces within the overall scaffolding. This reduces the stability of the scaffolding and creates a safety hazard. Summary of the Invention

[0005] To address the issue of deflection deformation of the support frame, which leads to unbalanced forces within the scaffolding and potential safety hazards, this application provides a deflection compensation structure and construction method for doorway supports.

[0006] Firstly, this application provides a doorway support deflection compensation structure, which adopts the following technical solution:

[0007] A door opening support deflection compensation structure includes a support frame, the support frame including an upper support bar and a lower support rib, the upper support bar being disposed above the lower support rib and having an area larger than the lower support rib, and the lower support rib having a plurality of abutment members internally threadedly connected to it, the abutment members abutting against the upper support bar.

[0008] By adopting the above technical solution, when the support frame bends downward under the pressure of the scaffolding above, construction workers use a tower crane or crane to lift the upper support bar back to its original state. At this time, the construction workers rotate multiple bracing components to lift the upper support bar upward, thereby restoring the bending deformation of the upper support bar. This ensures that the connection between the scaffolding above the support frame and the surrounding scaffolding is balanced, reducing the possibility of the entire scaffolding collapsing due to excessive deformation and displacement of the scaffolding above the support frame.

[0009] Optionally, a boss is fixed in the middle of the upper support bar, and the boss is disposed on the side wall of the upper support bar away from the lower support bone.

[0010] By adopting the above technical solution, when the support frame bends downward, according to the law of force deformation, the displacement of the middle part of the support frame is the largest and the bending deformation is the most severe. The protrusion enhances the strength of the middle part of the upper support bar, which can partially offset the deformation of the upper support bar. In addition, the protrusion enhances the strength of the upper support bar. When the upper support bar is restored by the support member, the middle part of the upper support bar is more likely to be restored to a horizontal state.

[0011] Optionally, the upper support bar is further provided with a drive component for driving the lower support bone to move, and the side of the lower support bone near the upper support bar is provided with a track assembly for cooperating with the drive component.

[0012] By adopting the above technical solution, when the displacement and deformation of the support frame are too large and the structural stability of the support frame itself is no longer able to support the scaffolding above, the support frame needs to be replaced. The hooks of the tower crane or gantry crane are fixed to both sides of the support bar, and the upper support bar is lifted upward to the restored state. Then, the drive component inside the upper support bar is used to drive the lower support bone to move, and a new lower support bone is installed at the same time. When the lower support bone that needs to be replaced is detached from the upper support bar, the new lower support bone is installed below the upper support bar, thus completing the replacement of the lower support bone.

[0013] Optionally, the drive assembly includes a rotating rod rotatably disposed within the upper support bar, the length direction of the rotating rod being parallel to the length direction of the upper support bar;

[0014] The rotating rod is provided with a plurality of gears spaced apart along its length, and the gears protrude from the side wall of the upper support bar near the lower support bone;

[0015] The track assembly includes a plurality of racks that pass through the lower support bone and are spaced apart along the length of the lower support bone. The length of the racks is perpendicular to the length of the lower support bone, and the plurality of gears mesh with the plurality of racks in a one-to-one correspondence.

[0016] By adopting the above technical solution, when replacing the lower support bone, the construction personnel first use a crane to place the new lower support bone side by side next to the lower support bone to be replaced. Then, they rotate the rotating rod to drive the entire gear to rotate. Since the racks in the lower support bone to be replaced mesh with the gear one by one, both the lower support bone to be replaced and the new lower support bone move with the rotation of the gear. Finally, the lower support bone to be replaced is disassembled and the new lower support bone is installed.

[0017] Optionally, the upper support bar has multiple slots on its side wall near the lower support bone, and the abutment members are inserted into the slots one by one.

[0018] By adopting the above technical solution, it is not easy for the upper support bar and the lower support bone to slip relative to each other, and the support member can be more stable when supporting the upper support bar, and it is also not easy for the support member and the upper support bar to slip relative to each other.

[0019] Optionally, two crossbeams are provided on the side of the lower support bone away from the upper support bar. The two crossbeams are respectively located at both ends of the lower support bone. The length direction of the crossbeams is perpendicular to the length direction of the lower support bone. Multiple roller assemblies are provided inside the crossbeams. The roller assemblies can abut against the bottom wall of the lower support bone.

[0020] By adopting the above technical solution, when replacing the lower support bone, the lower support bone is not easy to move due to the large friction between the lower support bone and the lower crossbeam. The roller assembly installed in the crossbeam makes it easier for the lower support bone to slide relative to the crossbeam, thus making it easier to disassemble the lower support bone to be replaced and install the new lower support bone.

[0021] Optionally, multiple support frames are spaced apart between the two crossbeams along the length of the crossbeams. Multiple receiving slots are spaced apart along the length of the crossbeams on the side of the crossbeams near the lower support bone. The roller assembly is disposed in the receiving slots, and multiple lifting components for raising and lowering the roller assembly are threadedly connected to the crossbeams.

[0022] By adopting the above technical solution and setting up the lifting component, the roller assembly can be accommodated in the receiving groove during daily use of the support frame, and the lower support bone is not easy to slide along the crossbeam. When the lower support bone needs to be replaced, the roller assembly is lifted upward by the lifting component, so that the roller assembly protrudes from the upper surface of the crossbeam. At this time, the lower support bone and the roller assembly abut against each other, which can reduce the friction between the lower support bone and the crossbeam, making it easier for the lower support bone to slide relative to the crossbeam.

[0023] Optionally, the roller assembly includes rollers that are correspondingly arranged in each receiving slot, and a rotating rod is rotatably arranged at the center of each roller, and the lifting member can abut against the rotating rod.

[0024] By adopting the above technical solution, the lifting component is rotated, and the rotating rod is raised or lowered by the lifting component to drive the individual roller to rise or fall, thereby achieving the effect of accommodating the roller in the receiving groove, or moving the roller to protrude from the surface of the crossbeam and abut against the lower support bone.

[0025] Secondly, this application provides a method for compensating for deflection of door opening supports, using the aforementioned door opening support deflection compensation structure, and employing the following technical solution:

[0026] A method for compensating for deflection of doorway supports includes the following steps:

[0027] S1. Use a tower crane or hoist to lift the upper support bar upwards until it returns to a horizontal state;

[0028] S2. If the deflection of the support frame is less than 5mm, rotate the abutment to raise it until the abutment abuts against the upper support bar.

[0029] S3. If the deflection of the support frame is greater than 5mm, replace the support frame and hoist the replacement support frame to be flush with the support frame to be replaced.

[0030] S4. Rotate the lifting component to raise the roller assembly until the rollers protrude from the surface of the crossbeam;

[0031] S5. Rotate the rotating rod so that the drive assembly drives the lower support bone to be replaced to detach from the upper support bar, and the lower support bone to be replaced is simultaneously installed below the upper support bar.

[0032] By adopting the above technical solution, when the support frame above the opening bends and deforms, it is not necessary for construction workers to dismantle all the scaffolding around the opening to replace the support frame and eliminate the safety hazards caused by the bending and deformation of the support frame; nor is it necessary for construction workers to install support rods inside the opening to support the support frame above, thus avoiding the problem of the opening being difficult to pass through; the construction method of this application is simple to operate, the support frame can be replaced quickly, and it can be applied to the deflection compensation of support frames with different degrees of deformation.

[0033] In summary, this application includes at least one of the following beneficial effects:

[0034] 1. Installing a bracing member inside the lower support frame allows the scaffolding above the support frame to quickly recover from deformation when the support frame undergoes a small displacement or deformation. This reduces the risk of safety hazards caused by excessive internal stress in the scaffolding due to support frame deformation.

[0035] 2. When the displacement and deformation of the support frame are large, the lower support frame can be replaced quickly through the drive assembly and track assembly, without the need for construction workers to dismantle the entire scaffolding and rebuild it.

[0036] 3. This application only requires rotating the support member or rotating the rotating rod to achieve deflection compensation of the support frame or replacement of the lower support frame. The operation is simple and more economical, faster, and saves time and effort compared to dismantling the entire scaffolding and rebuilding it. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the scaffolding erection structure at the doorway;

[0038] Figure 2 This is a schematic diagram of the overall structure of the support frame according to an embodiment of this application;

[0039] Figure 3 This is a partial sectional view of the internal structure of the support frame, as shown in the embodiments of this application.

[0040] Figure 4 This is a structural schematic diagram illustrating the positional relationship between the support frame and the crossbeam, as described in this application embodiment.

[0041] Figure 5 This is a partial cross-sectional structural diagram of the beam in an embodiment of this application;

[0042] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0043] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Upper support bar; 111. Boss; 112. Slot; 113. Circular groove; 12. Lower support bone; 13. Supporting component; 2. Drive assembly; 21. Rotating rod; 22. Gear; 3. Rack; 4. Crossbeam; 41. Receiving groove; 42. Lifting component; 43. Side groove; 44. Connecting hole; 5. Roller assembly; 51. Roller; 52. Rotating rod; 521. Enlarged head; 6. Column. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0045] Reference Figure 1 When erecting scaffolding around the doorway, multiple columns 6 are set at intervals on both sides of the doorway. A horizontal beam 4 is set above each column 6. Multiple support frames 1 are laid at intervals above the two horizontal beams 4. Scaffolding is erected on the support frames 1 and the scaffolding on the support frames 1 is connected to the scaffolding on both sides of the doorway to form an overall scaffolding support system.

[0046] This application discloses a doorway support deflection compensation structure, referring to... Figure 1 and Figure 2 It includes multiple support frames 1 set on two crossbeams 4. The support frame 1 includes an upper support bar 11 and a lower support bone 12. The upper support bar 11 is made of Q345 steel plate, and the lower support bone 12 is made of Q345 I-beam. The upper flange plate of the lower support bone 12 is thicker than the lower flange plate.

[0047] Reference Figure 2 and Figure 3The upper support bar 11 is positioned above the lower support bone 12, and the width of the upper support bar 11 is greater than the width of the lower support bone 12. Multiple slots 112 are provided on the side of the upper support bar 11 closest to the lower support bone 12. Multiple abutment members 13 are threadedly connected to the upper flange plate of the lower support bone 12, and the ends of the multiple abutment members 13 are inserted into the slots 112 one by one. In this embodiment, preferably, four rows of abutment members 13 are threadedly connected to the upper flange plate, and the distance between two adjacent abutment members 13 in each row is 10-20 cm.

[0048] Reference Figure 2 and Figure 3 When the support frame 1 bends downwards under the pressure of the scaffolding above, and the downward bending deformation is within 5mm, since the width of the upper support bar 11 is greater than the width of the lower support bone 12, the tower crane or crane rope is first fixed at the position where the upper support bar 11 protrudes from the lower support bone 12. The tower crane or crane is then used to lift the upper support bar 11 to a horizontal position. At this time, there is a gap between the upper support bar 11 and the lower support bone 12. The abutment member 13 is rotated so that the abutment member 13 abuts against the upper support bar 11. After the position of the abutment member 13 is adjusted, the connection between the upper support bar 11 and the tower crane or crane is removed, thereby compensating for the deflection deformation of the upper support frame 1 and restoring the deformation of the scaffolding above the support frame 1. This reduces the internal stress of the scaffolding system and makes the internal force more balanced. The slot 112 makes it difficult for the abutment member 13 and the upper support bar 11 to slip relative to each other, and the upper support bar 11 is more stable under the support of the abutment member 13.

[0049] Reference Figure 2 and Figure 3 A boss 111 is fixed in the middle of the upper support bar 11. The boss 111 is set on the side wall of the upper support bar 11 away from the lower support bone 12. Since the support frame 1 is long and narrow, when the upper scaffolding applies downward pressure to the support frame 1, the bending deformation value in the middle of the support frame 1 is the largest. The boss 111 enhances the strength of the middle of the upper support bar 11, thereby partially offsetting the deformation of the middle of the upper support bar 11. Moreover, the boss 111 makes it easier for the upper support bar 11 to return to a horizontal state when the support member 13 pushes the upper support bar 11 upward.

[0050] Reference Figure 2 and Figure 3A drive assembly 2 is provided inside the upper support bar 11, and a track assembly is provided on the side of the lower support bone 12 near the upper support bar 11. The drive assembly 2 and the track assembly cooperate with each other, allowing the lower support bone 12 to move relative to the upper support bar 11. Specifically, the drive assembly 2 includes a rotating rod 21 rotatably disposed inside the upper support bar 11. The length of the rotating rod 21 is consistent with the length direction of the upper support bar 11, and both ends of the upper support bar 11 are rotatably connected to the rotating rod 21 through bearings. One end of the rotating rod 21 extends out of the upper support bar 11. Multiple gears 22 are spaced apart along the length of the rotating rod 21. The rotating rod 21 passes through the center of the gear 22, and the gear 22 is fixedly connected to the rotating rod 21. Multiple circular grooves 113 are opened along the length of the upper support bar 11 near the lower support bone 12. The circular grooves 113 penetrate the side wall of the upper support bar 11 near the lower support bone 12. The multiple gears 22 are respectively arranged in the circular grooves 113. The cross-section of the circular grooves 113 is arc-shaped. The inner wall of the circular grooves 113 is polished, so that the gears 22 can rotate more effortlessly in the circular grooves 113.

[0051] Reference Figure 2 and Figure 3 The track assembly includes multiple racks 3 spaced apart along the length of the lower support rib 12. The length of the racks 3 is perpendicular to the length of the lower support rib 12 and the racks 3 pass through the lower support rib 12. Multiple gears 22 on the rotating rod 21 mesh with each rack 3 in turn. By rotating the rotating rod 21, the lower support rib 12 can be moved along the length of the racks 3.

[0052] Reference Figure 1 and Figure 3 If the support frame 1 is significantly bent and deformed, making it unable to support the scaffolding above, construction workers can replace the lower support rib 12. Specifically, workers use a tower crane or hoist to lift the upper support bar 11 to a horizontal position. At this point, there is a gap between the upper support bar 11 and the lower support rib 12. A new lower support rib 12 is then hoisted by the hoist to be placed alongside the deformed lower support rib 12. The rotating rod 21 is rotated, causing the gear 22 to rotate and simultaneously moving the lower support rib 12, which is meshed with the gear 22, along the length of the rack 3. At the same time, the rack 3 on the new lower support rib 12 re-engages with the gear 22. The old lower support rib 12 disengages from the upper support bar 11, while the new lower support rib 12 moves below the upper support bar 11 until it is fully installed below the upper support bar 11. Since the deformation of the support frame 1 will not exceed 1 cm, the gear 22 remains engaged with the rack 3 when the upper support bar 11 is lifted to a horizontal position.

[0053] Reference Figure 4 and Figure 5The crossbeam 4 is in the shape of an I-beam, and the thickness of the upper flange of the crossbeam 4 is greater than the thickness of the lower flange. A roller assembly 5 is installed inside the crossbeam 4. Specifically, since multiple support frames 1 are erected above the crossbeam 4, multiple receiving slots 41 are spaced apart on the side of the crossbeam 4 near the lower support rib 12. The receiving slots 41 are opened along the length direction of the crossbeam 4, and a receiving slot 41 is provided below both ends of each support frame 1.

[0054] Reference Figure 5 and Figure 6 The roller assembly 5 includes multiple rollers 51, each corresponding to a receiving groove 41. A rotating rod 52 is rotatably mounted in the middle of each roller 51, passing through the roller 51 and extending out of the side walls of the crossbeam 4 at both ends. Multiple side grooves 43 are also formed in the upper flange plate of the crossbeam 4. Each receiving groove 41 has one side groove 43 on each side, and a connecting hole 44 is formed between the receiving groove 41 and the side groove 43 to connect them. The rotating rod 52 passes through the connecting hole 44, with its end located within the side groove 43, and can move up and down within the connecting hole 44. Rectangular enlarged heads 521 are fixed to both ends of the rotating rod 52. Multiple lifting members 42 are threadedly connected to the bottom of the upper flange plate of the crossbeam 4. Specifically, the lifting members 42 are bolts threadedly connected to the crossbeam 4, and the screw ends of the lifting members 42 abut against the enlarged heads 521.

[0055] Reference Figure 4 and Figure 6 When construction workers move the lower support rib 12, the friction between the lower support rib 12 and the crossbeam 4 is relatively large due to the lower support rib 12 being erected above the crossbeam 4, making movement inconvenient. To address this, a roller assembly 5 is installed. When moving the lower support rib 12, rotating the lifting component 42 moves the roller 51 upwards until it partially protrudes from the upper surface of the crossbeam 4. At this point, the lower support rib 12 moves relative to the roller 51 with less friction, making movement easier and less strenuous. For daily use, rotating the lifting component 42 in the opposite direction retracts the roller 51 into the receiving groove 41. This makes the upper surface of the crossbeam 4 horizontal, allowing the support frame 1 to be stably erected on the two crossbeams 4.

[0056] The implementation principle of the door opening support deflection compensation structure in this application embodiment is as follows: if the deflection deformation of the support frame 1 is less than 5mm, the abutment member 13 can be rotated according to the deformation of each segment of the support frame 1, so that the abutment member 13 rises to the corresponding height, thereby achieving the leveling of the upper support bar 11, thereby reducing the deformation of the scaffolding above the support frame 1, and making the scaffolding system more stable and safe.

[0057] When the deflection of the support frame 1 exceeds 5mm, the drive assembly 2 can be used to move the lower support rib 12 relative to the upper support bar 11, and a new lower support rib 12 can be placed below the upper support bar 11, making the lower support rib 12 easier to replace and reducing safety hazards caused by the deformation of the support frame 1. During the movement of the lower support rib 12, the lifting member 42 lifts the roller 51 to protrude from the upper surface of the crossbeam 4, reducing the friction between the lower support rib 12 and the crossbeam 4, making it easier to push the lower support rib 12.

[0058] This application also discloses a construction method using the above-described device, which includes the following steps:

[0059] S1. Use a tower crane or hoist to lift the upper support bar 11 upwards until it returns to a horizontal state;

[0060] S2. If the deflection of the support frame 1 is less than 5mm, rotate the abutment 13 to raise the abutment 13 until the abutment 13 abuts against the upper support bar 11.

[0061] S3. If the deflection of support frame 1 is greater than 5mm, replace support frame 1 and hoist the replacement support frame 1 to be flush with the support frame 1 to be replaced.

[0062] S4. Rotate the lifting member 42 to raise the roller assembly 5 until the roller 51 protrudes from the surface of the crossbeam 4;

[0063] S5. Rotate the rotating rod 21 so that the drive assembly 2 drives the lower support bone 12 to be replaced to detach from the upper support bar 11, and the lower support bone 12 to be replaced is simultaneously installed below the upper support bar 11.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A doorway support deflection compensation structure, characterized in that, The system includes a support frame (1), which includes an upper support bar (11) and a lower support bone (12). The upper support bar (11) is located above the lower support bone (12), and the area of ​​the upper support bar (11) is larger than that of the lower support bone (12). The lower support bone (12) is internally threaded with a plurality of abutment members (13), and the abutment members (13) abut against the upper support bar (11). The upper support bar (11) is also provided with a drive assembly (2) for driving the lower support bone (12) to move. The side of the lower support bone (12) near the upper support bar (11) is provided with a track assembly for use in conjunction with the drive assembly (2).

2. The doorway support deflection compensation structure according to claim 1, characterized in that: A boss (111) is fixed in the middle of the upper support bar (11), and the boss (111) is located on the side wall of the upper support bar (11) away from the lower support bone (12).

3. The doorway support deflection compensation structure according to claim 2, characterized in that: The drive assembly (2) includes a rotating rod (21) rotatably disposed within the upper support bar (11), the length direction of the rotating rod (21) being parallel to the length direction of the upper support bar (11); The rotating rod (21) is provided with a plurality of gears (22) spaced apart along its length, and the gears (22) protrude from the side wall of the upper support bar (11) near the lower support bone (12); The track assembly includes multiple racks (3) that pass through the lower support bone (12) and are spaced apart along the length direction of the lower support bone (12). The length of the racks (3) is perpendicular to the length direction of the lower support bone (12), and multiple gears (22) mesh with multiple racks (3) in a one-to-one correspondence.

4. The doorway support deflection compensation structure according to claim 1, characterized in that: The upper support bar (11) has multiple slots (112) on its side wall near the lower support bone (12), and the abutment (13) is inserted into the slots (112) one by one.

5. A doorway support deflection compensation structure according to claim 3, characterized in that: Two crossbeams (4) are provided on the side of the lower support bone (12) away from the upper support bar (11). The two crossbeams (4) are respectively located at both ends of the lower support bone (12). The length direction of the crossbeams (4) is perpendicular to the length direction of the lower support bone (12). Multiple roller assemblies (5) are provided inside the crossbeams (4). The roller assemblies (5) can abut against the bottom wall of the lower support bone (12).

6. The doorway support deflection compensation structure according to claim 5, characterized in that: Multiple support frames (1) are spaced apart between the two crossbeams (4) along the length of the crossbeam (4). Multiple receiving slots (41) are spaced apart on the side of the crossbeam (4) near the lower support bone (12) along the length of the crossbeam (4). The roller assembly (5) is located in the receiving slot (41), and multiple lifting parts (42) for lifting the roller assembly (5) are threadedly connected inside the crossbeam (4).

7. A doorway support deflection compensation structure according to claim 6, characterized in that: The roller assembly (5) includes rollers (51) arranged one-to-one in each receiving groove (41), and a rotating rod (52) is rotatably arranged at the center of each roller (51), and the lifting member (42) can abut against the rotating rod (52).

8. A method for compensating for deflection of a doorway support, using the doorway support deflection compensation structure as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. Use a tower crane or hoist to lift the upper support bar (11) upwards to restore it to a horizontal state; S2. If the deflection of the support frame (1) is less than 5mm, rotate the abutment (13) to raise the abutment (13) until the abutment (13) abuts against the upper support bar (11); S3. If the deflection of the support frame (1) is greater than 5mm, replace the support frame (1) and hoist the replacement support frame (1) to be flush with the support frame (1) to be replaced. S4. Rotate the lifting member (42) to raise the roller assembly (5) until the roller (51) protrudes from the surface of the crossbeam (4); S5. Rotate the rotating rod (21) so that the drive assembly (2) drives the lower support bone (12) to be replaced to detach from the upper support bar (11), and the lower support bone (12) to be replaced is simultaneously installed below the upper support bar (11).

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