Temporary supporting structure for cover and excavation top-down large-section overweight frame beam

Abstract

The utility model relates to the technical field of construction auxiliary tools, in particular to a cover and excavation top-down large-section overweight frame beam temporary supporting structure which comprises a disc buckle frame, a jacking mechanism and channel steel used for supporting beam steel bars, the jacking mechanism comprises a hydraulic jack, a jacking tray used for supporting the channel steel is arranged at the top of the hydraulic jack, and the jacking tray is used for supporting the channel steel. The bottom of the hydraulic jack is provided with a connecting sleeve used for being connected with the disc buckle frame. The steel bar binding device has the advantages that workers can better conduct steel bar binding work conveniently, the whole support system is safe and stable and convenient to dismantle, and meanwhile the thickness of a steel bar protection layer can be better controlled.

Description

Technical Field

[0001] The present application relates to the technical field of construction auxiliary tools, and in particular to a temporary support structure for large-section and super-heavy frame beams for cover-excavation reverse construction. Background Art

[0002] The cover-and-cut method is a construction technology that involves first building the columns, beams and roof of an underground project, and then using them as supporting components to restore ground traffic on the upper part and excavate the soil and carry out underground main construction on the lower part.

[0003] When constructing frame beams traditionally, it is necessary to excavate the earth to 4500mm below the top surface of the top beam, and then construct the steel frame. The steel frame of the beam is often supported by placing horse stool bars, but this support method has the problem of inconvenient steel bar binding. Utility Model Content

[0004] In order to facilitate the construction of frame beams, the present application provides a temporary support structure for large-section and super-heavy frame beams constructed in a cover-and-excavation reverse manner.

[0005] The temporary support structure of a large-section, overweight frame beam provided in this application adopts the following technical solution:

[0006] A temporary support structure for a large-section, super-heavy frame beam for reverse construction of a cover excavation comprises a buckle frame, a jacking mechanism and a channel steel for supporting the beam reinforcement, the jacking mechanism comprises a hydraulic jack, a top tray for supporting the channel steel is arranged on the top of the hydraulic jack, and a connecting sleeve for connecting the buckle frame is arranged on the bottom of the hydraulic jack.

[0007] By adopting the above technical solution, the staff can install and disassemble the disc buckle frame, jacking mechanism and channel steel. Compared with the method of using horse stool reinforcement in the prior art, it is more convenient for the staff to carry out the steel bar binding work. The overall support system is safe and stable, easy to dismantle, and is more conducive to controlling the thickness of the steel bar protective layer.

[0008] Optionally, a horizontal tie plate is mounted and fixedly connected to the hydraulic jack.

[0009] By adopting the above technical solution, it is convenient to use other pan frames to fix the hydraulic jack.

[0010] Optionally, the top tray includes a bottom plate supported above the hydraulic jack, side plates are vertically fixed to two opposite edges of the top surface of the bottom plate, and a rib plate is supported between the bottom plate and the hydraulic jack.

[0011] By adopting the above technical solution, the bottom plate is used to support the channel steel, the side plate is used to limit the lateral movement of the channel steel, and the rib plate is used to improve the bending resistance of the bottom plate. The various components cooperate with each other to effectively and stably support the channel steel.

[0012] Optionally, the bottom plate is fixedly connected to the top of the hydraulic jack, and the rib plate is fixedly connected between the bottom plate and the hydraulic jack.

[0013] By adopting the above technical solution, the components are fixedly connected, which is beneficial to improving stability and strength.

[0014] Optionally, a mounting sleeve is fixedly connected to the bottom surface of the base plate, the mounting sleeve is sleeved on the top of the hydraulic jack, a second top screw for fixing the hydraulic jack is installed on the mounting sleeve, and the rib plate is fixedly connected between the base plate and the mounting sleeve.

[0015] By adopting the above technical solution, when the hydraulic jack needs to be repaired or replaced, the second top screw can be loosened and the top tray can be removed.

[0016] Optionally, the connecting sleeve is provided with a pin hole, in which a pin for fixing the hydraulic jack is detachably inserted.

[0017] By adopting the above technical solution, the connecting sleeve is fixed to the hydraulic jack by a latch, which is convenient for disassembly.

[0018] Optionally, the connecting sleeve is fixedly connected to the bottom of the hydraulic jack.

[0019] By adopting the above technical solution, the fixed connection method facilitates improving the stability between components.

[0020] Optionally, a partition is fixedly connected inside the connecting sleeve, the hydraulic jack is inserted into the upper part of the connecting sleeve and fixed by a top screw, and the buckle frame is inserted into the lower part of the connecting sleeve and fixed by the pin.

[0021] By adopting the above technical solution, when the hydraulic jack needs to be replaced, the connecting sleeve can be disassembled by loosening the top screw.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The staff installs and disassembles the buckle frame, the jacking mechanism and the channel steel. Compared with the method of using horse stool bars in the prior art, it is more convenient for the staff to tie the steel bars. The overall support system is safe and stable, easy to dismantle, and more conducive to controlling the thickness of the steel bar protective layer;

[0024] 2. The design of the horizontal tie plate makes it easy to use other plate frames to fix the hydraulic jack;

[0025] 3. The bottom plate is used to support the channel steel, the side plate is used to limit the lateral movement of the channel steel, and the rib plate is used to improve the bending resistance of the bottom plate. The various components cooperate with each other to effectively and stably support the channel steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the temporary support structure of Example 1 of the present application.

[0027] Figure 2 It is a structural schematic diagram of the jacking mechanism of Example 1 of the present application.

[0028] Figure 3 It is a partial structural sectional view of the jacking mechanism of Example 2 of the present application.

[0029] Explanation of the reference numerals: 1. Beam reinforcement; 2. Disc bracket; 3. Jacking mechanism; 30. Hydraulic jack; 31. Horizontal tie plate; 32. Connecting sleeve; 320. Pin hole; 321. Partition plate; 322. Jack screw one; 33. Top tray; 330. Bottom plate; 331. Side plate; 332. Rib plate; 333. Mounting sleeve; 334. Jack screw two; 4. Channel steel. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.

[0031] Example 1

[0032] The embodiment of the present application discloses a temporary support structure for a large-section, overweight frame beam constructed by top-down excavation. Figure 1 and Figure 2 A temporary support structure for a large-section, super-heavy frame beam constructed by top-down excavation is used to temporarily support beam reinforcement 1. The temporary support structure includes a buckle frame 2, a jacking mechanism 3 and a channel steel 4.

[0033] Reference Figure 1 and Figure 2 The buckle frame 2 is erected on the ground, and the supporting mechanism 3 is installed on the top of the buckle frame 2. The supporting mechanism 3 includes a vertically arranged hydraulic jack 30. A horizontal tie plate 31 is fixedly mounted in the middle of the hydraulic jack 30. The horizontal tie plate 31 can be used to connect the buckle frame to improve stability. A connecting sleeve 32 is fixedly mounted at the bottom of the hydraulic jack 30. A pin hole 320 is opened on the side wall of the connecting sleeve 32. The connecting sleeve 32 can be detachably mounted on the vertical pole of the buckle frame 2 and fixed with a pin.

[0034] Reference Figure 2A top tray 33 is provided at the top of the hydraulic jack 30. The top tray 33 includes a bottom plate 330 horizontally fixed to the top of the hydraulic jack 30. A pair of side plates 331 are vertically fixed to two opposite edges of the top surface of the bottom plate 330. A gap is provided between the two side plates 331 of the same pair to minimize the use of materials while ensuring the use function. A plurality of ribs 332 are fixed between the bottom surface of the bottom plate 330 and the hydraulic jack 30. The ribs 332 play an auxiliary supporting role for the bottom plate 330.

[0035] Reference Figure 1 The channel steel 4 is erected between the two top trays 33, and the channel steel 4 is used to support the top layer of the beam reinforcement 1, thereby suspending the beam reinforcement 1, making it easier for subsequent staff to perform reinforcement binding operations.

[0036] The implementation principle of Example 1 of the present application is as follows: the staff first builds the buckle frame 2 on the ground, installs the jacking mechanism 3 on the top of the buckle frame 2, installs the channel steel 4 between the two top trays 33, and then ties and builds the steel bars on the channel steel 4. After completion, shorten the length of the hydraulic jack 30, remove the channel steel 4 and the buckle frame 2 in turn, and support the bottom of the beam steel bar 1, support the beam steel bar 1 with formwork and pour concrete, and other related operations. Compared with the method of using horse stool bars in the prior art, it is more convenient for the staff to perform steel bar tying work, the overall support system is safe and stable, easy to dismantle, and more conducive to controlling the thickness of the steel bar protective layer.

[0037] Example 2

[0038] Reference Figure 3 The difference between this embodiment and embodiment 1 is that, in order to facilitate the maintenance and replacement of the hydraulic jack 30, a partition 321 is fixedly connected to the middle of the inner wall of the connecting sleeve 32, the hydraulic jack 30 is detachably inserted into the connecting sleeve 32 and supported by the partition 321, and a top screw 322 for fixing the hydraulic jack 30 is threadedly connected to the upper part of the side wall of the connecting sleeve 32, the pin hole 320 is located at the lower part of the connecting sleeve 32, and the lower part of the connecting sleeve 32 is sleeved on the vertical rod of the disc buckle frame 2 and fixed by a pin.

[0039] Reference Figure 3 In this embodiment, a mounting sleeve 333 is fixedly connected to the bottom surface of the base plate 330 . The mounting sleeve 333 is detachably mounted on the top of the hydraulic jack 30 and fixed by a top screw 334 . The rib 332 is fixedly connected between the base plate 330 and the mounting sleeve 333 .

[0040] The implementation principle of Example 2 of the present application is: when the hydraulic jack 30 needs to be disassembled, loosen the top screw 1 322 and the top screw 2 334, and the top tray 33 and the connecting sleeve 32 can be disassembled.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temporary support structure for large-section and super-heavy frame beams in reverse construction, characterized in that: The invention comprises a buckle frame (2), a supporting mechanism (3) and a channel steel (4) for supporting a beam reinforcement (1); the supporting mechanism (3) comprises a hydraulic jack (30); a top tray (33) for supporting the channel steel (4) is arranged on the top of the hydraulic jack (30); and a connecting sleeve (32) for connecting to the buckle frame (2) is arranged on the bottom of the hydraulic jack (30).

2. According to claim 1, a temporary support structure for large-section and super-heavy frame beams constructed by top-up construction is characterized by: A horizontal tie plate (31) is sleeved and fixedly connected to the hydraulic jack (30).

3. The temporary support structure of large-section super-heavy frame beams constructed by top-down excavation and cover construction according to claim 1 is characterized by: The top tray (33) includes a bottom plate (330) supported above the hydraulic jack (30), side plates (331) are vertically fixed to two opposite edges of the top surface of the bottom plate (330), and a rib plate (332) is also supported between the bottom plate (330) and the hydraulic jack (30).

4. The temporary support structure of a large-section super-heavy frame beam constructed by top-down excavation according to claim 3 is characterized by: The bottom plate (330) is fixedly connected to the top of the hydraulic jack (30), and the rib plate (332) is fixedly connected between the bottom plate (330) and the hydraulic jack (30).

5. The temporary support structure of large-section super-heavy frame beams constructed by top-down construction according to claim 3 is characterized by: The bottom surface of the base plate (330) is fixedly connected with a mounting sleeve (333), the mounting sleeve (333) is sleeved on the top of the hydraulic jack (30), a second top screw (334) for fixing the hydraulic jack (30) is installed on the mounting sleeve (333), and the rib plate (332) is fixedly connected between the base plate (330) and the mounting sleeve (333).

6. The temporary support structure of large-section super-heavy frame beams constructed by top-down excavation and cover construction according to claim 1 is characterized by: The connecting sleeve (32) is provided with a pin hole (320), and a pin for fixing the hydraulic jack (30) is detachably inserted into the pin hole (320).

7. The temporary support structure of large-section super-heavy frame beams constructed by top-down excavation according to claim 6 is characterized by: The connecting sleeve (32) is fixedly connected to the bottom of the hydraulic jack (30).

8. The temporary support structure of large-section super-heavy frame beams constructed by top-down excavation and cover construction according to claim 6 is characterized by: A partition plate (321) is fixedly connected inside the connecting sleeve (32), the hydraulic jack (30) is inserted into the upper part of the connecting sleeve (32) and fixed by a top screw (322), and the buckle frame (2) is inserted into the lower part of the connecting sleeve (32) and fixed by the latch.

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