An integrated slot-hole type metal partition structure for a beam manhole

Abstract

An integrated groove hole type metal partition plate structure for beam manhole, comprising a partition plate body, a groove hole is formed on each partition plate body, and a steel bar is freely passed through each groove hole and blocked by a steel bar perforated groove plate; an L-shaped clamping plate is clamped with adjacent partition plate bodies and locked by bolts to form a manhole formwork. The integrated groove hole type metal partition plate structure for beam manhole is convenient to install and has high reusability.

Description

Technical Field

[0001] This utility model relates to the field of manhole templates, and in particular to an integrated slotted metal partition structure for beam manholes. Background Technology

[0002] Manholes in box girders are pre-reserved openings in beam structures for workers to enter and exit or for later maintenance. Multiple rows of reinforcing bars are required inside to ensure structural strength. During construction, diaphragms are used to position and separate the reinforcing bars to prevent displacement during concrete pouring. Currently, wooden formwork is often used for manholes, consisting of 15-18mm thick pine planks assembled into a square structure. White glue is used to bond the joints, and a release agent is applied to the surface. The construction process is as follows: on-site layout, plank cutting, assembly, slotting for reinforcing bar pre-reserved holes, concrete pouring, and manual dismantling.

[0003] Disadvantages of existing technology: (1) Material performance defects ① Low material strength: The template at the manhole is often bent or damaged during dismantling, making it unusable.

[0004] ② High environmental sensitivity If it rains during construction, the moisture content of the wooden formwork will increase. After being exposed to the sun, it will expand, causing the positioning holes at the bottom to deviate, which will make it difficult to install the formwork.

[0005] (2) Construction quality defects The roundness error of the wooden formwork after assembly often reaches ±15mm (the standard requirement is ±5mm), which leads to misalignment between the manhole and the embedded parts; and the elliptic deformation is obvious after the concrete is poured.

[0006] (3) Safety and durability defects ① Significant fire hazard: During the welding of steel bars, welding sparks can easily ignite the wooden formwork.

[0007] ② Extremely short turnover life The template has an average turnover of ≤2 times, and the main failure modes include: bolt hole tearing; edge delamination and peeling; and structural cracking.

[0008] (4) When the spacing of the reinforcing bars is fixed, the holes in the partition cannot be adapted to the reinforcing bar layout of different designs, resulting in poor versatility; (5) The connection between the partition and the template is mostly fixed by welding or bolts. The template or partition is easily damaged during disassembly, and the reuse rate is low. (6) If the gap between the partition and the reinforcing bar is too large, it will easily lead to grout leakage; if it is too small, it will hinder the insertion of the reinforcing bar and affect the construction efficiency. Summary of the Invention

[0009] The technical problem to be solved by this utility model is to provide an integrated slotted metal partition structure for beam manholes, which has an adjustable diameter, is easy to install, and has a high reusability.

[0010] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An integrated slotted metal partition structure for beam manholes includes a partition body, each partition body having a slot, through which reinforcing bars can freely pass and are sealed by a reinforcing bar perforated slot plate; an L-shaped clamping plate is engaged with the adjacent partition body and locked with bolts to form a manhole template.

[0011] The partition body is made of galvanized steel sheet in one piece.

[0012] The partition body has waist-shaped holes on the left and right sides, and corresponding L-shaped plates have plate slots at both ends. Adjusting bolt holes are opened at the top and bottom of the plate slots. The L-shaped plates are engaged with the partition body through the plate slots. The adjusting bolts pass through the adjusting bolt holes and waist-shaped holes to lock them in place.

[0013] The slots and waist-shaped holes are all elongated, straight-line holes.

[0014] The top of the partition body is provided with a carrying handle.

[0015] The rebar perforation groove plate includes a sealing part, one side of which is integrally formed with the end cap part. The sealing part and the end cap part have through holes in the center that match the rebar. The size and thickness of the sealing part match the groove hole.

[0016] The end cap of the perforated steel bar channel plate is embedded with a magnet, and the end cap is magnetically attached to the main body of the partition plate by the magnet.

[0017] This utility model provides an integrated slotted metal partition structure for beam manholes, which has the following technical advantages: 1) High versatility: The long slot allows the position of the rebar to be finely adjusted within the range of 16-32cm, adapting to rebar layouts with different spacings, without the need for custom-made partitions for specific designs; only on-site drilling of the rebar perforation slot plate is required, and if the deviation is not significant, the rebar perforation slot plate can be reused and sealed with sealant.

[0018] 2) Easy to install and disassemble: The edge connection component achieves a flexible connection with the template through the waist-shaped hole and adjusting bolt. When disassembling, it can be removed simply by loosening the bolt, avoiding damage to the parts, and the reuse rate is over 96%. 3) Leakage prevention and strength balance: The width of the slot is matched with the diameter of the reinforcing bar to reduce grout leakage; the design of galvanized steel plate and reinforcing ribs ensures that the main body of the partition does not deform under concrete pressure and ensures the positioning accuracy of the reinforcing bar; 4) High safety: The edges of the slots are rounded and the top of the partition is equipped with a handle slot, which reduces the amount of work for workers to fix the steel bars and reduces the risk of workers being scratched. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the main structure of the partition plate of this utility model.

[0021] Figure 3 This is a schematic diagram of the L-shaped card plate in this utility model.

[0022] Figure 4 This is a partial schematic diagram of the installation structure of this utility model.

[0023] Figure 5 This is a schematic diagram of the rebar perforated groove plate in this utility model.

[0024] Figure 6 This is a schematic diagram of the installation of the steel bar perforated groove plate in this utility model.

[0025] In the figure: 1. Partition body, 2. Slot, 3. Waist-shaped hole, 4. Hand-carrying slot, 5. L-shaped clamping plate, 6. Triangular reinforcing rib, 7. Clamping plate slot, 8. Adjusting bolt hole, 9. Adjusting bolt, 10. Rebar through-hole slot plate, 11. Rebar, 10.1. Sealing part, 10.2. Detailed Implementation

[0026] like Figure 1-4 As shown, an integrated slotted metal partition structure for beam manholes includes a partition body 1 and an edge connecting assembly.

[0027] The partition body 1 is integrally formed from galvanized steel sheet (the galvanized steel sheet is magnetically oriented). Long, narrow slots 2 are arrayed on the partition body 1. The length of each slot 2 is 1632 cm, and its width is 23 mm larger than the diameter of the reinforcing bars inside the manhole of the box girder. The spacing between adjacent slots 2 is 515 cm. The edges of the slots 2 have rounded corners with a radius of 12 mm. The number of slots 2 matches the number of reinforcing bars. A reinforcing bar perforated slot plate 10 is correspondingly arranged at each slot 2. The reinforcing bar perforated slot plate 10 is used to seal the slots 2, facilitating subsequent concrete pouring and preventing grout leakage.

[0028] Vertical waist-shaped holes 3 are provided on both sides of the partition body 1, and a handle groove 4 is provided on the top of the partition body 1. The handle groove 4 facilitates the handling and installation by construction personnel.

[0029] Edge connecting components are symmetrically arranged on both sides of the partition body 1. These components include L-shaped clamping plates 5, made of Q235 carbon structural steel, with a rust-proof coating for corrosion protection. Adjusting bolt holes 8 are located at both the top and bottom of the L-shaped clamping plate 5, and clamping grooves 7 are evenly distributed at both ends. The L-shaped clamping plate 5 engages with the partition body 1 via these grooves. Adjusting bolts 9 are then passed through the adjusting bolt holes 8 and the oblong holes 3 of the partition body 1 and tightened, enabling quick fixing and disassembly. The oblong holes 3 allow for fine-tuning of the partition body 1 along the height of the manhole. Triangular reinforcing ribs 6 are welded to the corners of the L-shaped clamping plates 5. The thickness of the triangular reinforcing ribs 6 is the same as that of the L-shaped clamping plates 5, enhancing the connection strength and preventing deformation.

[0030] Preferably, reinforcing ribs are welded to the back of the partition body 1. The reinforcing ribs are made of U-shaped galvanized steel strips and are welded at intervals of 30-50 cm along the length of the partition body 1. The reinforcing ribs are arranged perpendicular to the slots 2 to improve the overall rigidity of the partition body 1 and prevent deformation under pressure during concrete pouring.

[0031] Preferably, the cross-section of the rebar perforation channel plate 10 is T-shaped. The rebar perforation channel plate 10 includes a sealing part 10.1 and an end cap part 10.2. The sealing part 10.1 and the end cap part 10.2 are integrally formed and have a through hole in the middle for the rebar 11 to pass through. The gap between the rebar 11 and the through hole can be sealed with sponge tape later. The sealing part of the rebar perforation channel plate 10 matches the slot 2, and the end cap part of the rebar perforation channel plate 10 is attached to the inner end face of the partition body 1, which can seal the end face of the slot 2.

[0032] The end cap 10.2 of the rebar perforated slot plate 10 is embedded with a magnet, and the end cap 10.2 is magnetically attached to the partition body 1 by the magnet. Thus, the rebar perforated slot plate 10 can be easily and quickly disassembled and installed.

[0033] Working principle and process: 1) This device serves as a template for the manhole of the box girder. During construction, the corresponding length of the partition body 1 is selected according to the size of the manhole of the box girder. There are a total of four sets of partition bodies 1. Each set of partition bodies 1 passes through the corresponding reinforcing bars 11. After the four sets of partition bodies 1 pass through the reinforcing bars 11 around the perimeter, the reinforcing bar through-hole plate 10 is inserted into each slot 2 to seal it.

[0034] 2) Connect the L-shaped clamping plate 5 to the adjacent partition body 1 via the clamping plate groove 7. Then, pass the adjusting bolt 9 through the adjusting bolt hole 8 on the L-shaped clamping plate 5 and the waist-shaped hole 3 on the partition body 1, and lock it in place. Use the waist-shaped hole 3 to finely adjust the height of the partition body 1. After the concrete is poured and initially set (poured outside the structure), loosen the adjusting bolt 9 and remove the L-shaped clamping plate 5. Take out the rebar perforation groove plate 10, and pull the partition body 1 out from the rebar gap through the handle groove 4. After cleaning, it can be reused.

Claims

1. An integrated slotted metal partition structure for beam manholes, characterized in that: It includes a partition body (1), each partition body (1) has a slot (2), each slot (2) is freely passed through a steel bar (11) and sealed by a steel bar through slot plate (10); an L-shaped clamp (5) is clamped to the adjacent partition body (1) and locked with bolts to form a manhole template.

2. The integrated slotted metal partition structure for beam manholes according to claim 1, characterized in that: The partition body (1) is integrally formed from galvanized steel sheet.

3. The integrated slotted metal partition structure for beam manholes according to claim 2, characterized in that: The partition body (1) has waist-shaped holes (3) on the left and right sides, and the corresponding L-shaped card plate (5) has card plate grooves (7) at both ends. Adjusting bolt holes (8) are opened at the top and bottom of the card plate groove (7). The L-shaped card plate (5) is engaged with the partition body (1) through the card plate groove (7). The adjusting bolt (9) passes through the adjusting bolt hole (8) and the waist-shaped hole (3) to lock.

4. The integrated slotted metal partition structure for beam manholes according to claim 3, characterized in that: The slot (2) and the waist-shaped hole (3) are both long, straight holes.

5. The integrated slotted metal partition structure for beam manholes according to claim 4, characterized in that: The top of the partition body (1) is provided with a handle groove (4).

6. The integrated slotted metal partition structure for beam manholes according to claim 1, characterized in that: The perforated groove plate (10) for steel bars includes a sealing part (10.1), one side of which is integrally formed with the end cap part (10.2). The sealing part (10.1) and the end cap part (10.2) have through holes in the center that match the steel bars (11). The size and thickness of the sealing part (10.1) match the groove hole (2).

7. An integrated slotted metal partition structure for beam manholes according to claim 6, characterized in that: The end cap (10.2) of the steel bar perforated groove plate (10) is embedded with a magnet, and the end cap (10.2) is magnetically attracted and fixed to the partition body (1) by the magnet.

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