Special pipe segment pouring steel bar positioning structure

Abstract

The utility model relates to special segment pouring reinforcing bar positioning structure belongs to special segment pouring reinforcing bar positioning technical field, this special segment pouring reinforcing bar positioning structure, include: segment mould, positioning mechanism, the positioning mechanism includes the first steel sheet and second steel sheet in segment mould inside, the inner wall of first steel sheet is clamped in the surface of second steel sheet, through first steel sheet and second steel plate in segment mould, the positioning precision of reinforcing bar is primarily ensured, through first steel sheet, second steel sheet, reinforcing plate and through -hole mutual match, realized to reinforcing bar and positioned, and then realized the spacing of reinforcing bar is consistent, avoided the problem that construction personnel need to measure mark in the reinforcing bar positioning precision of bundling root by root is not high, and then improved the precision of reinforcing bar positioning, through the anchoring rod for positioning reinforcing cage and strengthened the connection of first steel sheet, second steel sheet, reinforcing plate and concrete to guarantee the safety of structure.

Description

Technical Field

[0001] This utility model relates to the field of positioning technology for reinforcing bars in special tunnel segment casting, and in particular to a positioning structure for reinforcing bars in special tunnel segment casting. Background Technology

[0002] In tunnel engineering, the construction of the opening segments for connecting passages is one of the key technical aspects. Due to the special structural requirements of connecting passages, the reinforcement cages at the opening locations need to be precisely positioned to ensure the integrity and load-bearing capacity of the structure.

[0003] Currently, in the concrete pouring of tunnel projects, the method of on-site rebar tying is mostly adopted. However, as tunnel projects develop towards larger cross-sections and deeper burial, construction personnel need to tie the rebars one by one on-site according to the measurement marks, which can easily lead to lower rebar positioning accuracy and thus affect structural safety. Utility Model Content

[0004] Therefore, it is necessary to provide a special rebar positioning structure for segment casting to address the problem that construction workers need to tie the rebars one by one on site according to the measurement marks, which can easily lead to low positioning accuracy.

[0005] Includes: a segment mold; a positioning mechanism, the positioning mechanism including a first steel plate and a second steel plate disposed inside the segment mold, the inner wall of the first steel plate being engaged with the surface of the second steel plate, a reinforcing plate being fixedly connected to the top of the first steel plate, and anchor rods evenly distributed on the surfaces of the first steel plate, the second steel plate and the reinforcing plate, and several through holes on both sides of the reinforcing plate.

[0006] In one embodiment, the top of both the first steel plate and the second steel plate are hinged with a support cylinder, and the inner wall of the support cylinder is slidably connected with a support rod.

[0007] In one embodiment, the surface of the support rod is hinged with a mounting block, one side of which contacts one side of the segment mold.

[0008] In one embodiment, the surfaces of the first steel plate, the second steel plate, and the reinforcing plate are all curved into an arc shape.

[0009] In one embodiment, the inner wall of the support cylinder is threaded with a first bolt, the surface of which is threaded to the inner wall of the support rod.

[0010] In one embodiment, the inner wall of the mounting block is threaded with a plurality of second bolts, the surfaces of which are threaded to the inner wall of the segment mold. Through the cooperation of the support rod, support cylinder, first bolts, mounting block, and second bolts, the first and second steel plates are installed inside the segment mold, thereby ensuring the stability and accuracy of the rebar positioning.

[0011] In one embodiment, a rubber block is slidably connected to the inner wall of the first steel plate, and the surface of the rubber block is engaged with the inner wall of the second steel plate.

[0012] In one embodiment, a magnetic block is magnetically attached to the inner wall of the first steel plate, with the bottom of the magnetic block contacting the top of a rubber block. The interaction between the rubber block and the magnetic block enables the splicing and positioning of the first and second steel plates, ensuring that the first and second steel plates can be flexibly assembled according to the diameter of different segment molds, thereby guaranteeing precise positioning of the reinforcing bars.

[0013] Beneficial effects 1. By attaching the first and second steel plates to the segment mold, the positioning accuracy of the reinforcing bars is initially ensured. The first and second steel plates, the reinforcing plates, and the through holes work together to position the reinforcing bars, thereby ensuring consistent spacing of the positioned reinforcing bars. This avoids the problem of low positioning accuracy when construction workers need to measure and mark each reinforcing bar individually, thus improving the positioning accuracy of the reinforcing bars. Anchor rods are used to position the reinforcing cage and strengthen the connection between the first and second steel plates, the reinforcing plates, and the concrete, thereby ensuring the safety of the structure. 2. By cooperating with the support rod, support cylinder, first bolt, mounting block and second bolt, the first steel plate and the second steel plate are installed in the segment mold, thereby ensuring the stability and accuracy of the rebar positioning. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning mechanism structure of this utility model; Figure 3 This is an exploded view of the first and second steel plates of this utility model; Figure 4This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0016] Figure label: 100. Segment mold; 200. Positioning mechanism; 201. First steel plate; 202. Second steel plate; 203. Reinforcing plate; 204. Through hole; 205. Anchor rod; 206. Support cylinder; 207. Support rod; 208. Mounting block; 209. Second bolt; 210. First bolt; 211. Rubber block; 212. Magnetic block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figures 1-5 This invention describes a special segment casting reinforcement positioning structure.

[0019] In one embodiment, the special segment casting reinforcement positioning structure includes: a segment mold 100; a positioning mechanism 200, the positioning mechanism 200 including a first steel plate 201 and a second steel plate 202 disposed inside the segment mold 100, the inner wall of the first steel plate 201 being engaged with the surface of the second steel plate 202, a reinforcing plate 203 being fixedly connected to the top of the first steel plate 201, and anchor rods 205 evenly distributed on the surfaces of the first steel plate 201, the second steel plate 202 and the reinforcing plate 203, and several through holes 204 being opened on both sides of the reinforcing plate 203.

[0020] It should be noted that the segment mold 100 is usually composed of a mold frame, side plates, end plates, bottom mold, core mold and demolding device, etc. The model of the segment mold 100 can be selected.

[0021] The side plate is one of the main forming components of the mold, determining the outer arc shape and dimensional accuracy of the tunnel segment. The side plate is fixed to the mold frame by bolts or other connections, and sealing rubber strips are installed at the connection points to prevent concrete leakage.

[0022] End plates are used to determine the length and end face shape of the tunnel segments. During concrete pouring, they, along with the side plates, form a closed space to ensure the quality of the segment formation. The end plates are fixed to the formwork using bolts or other connections, and sealing rubber strips are installed at the connection points to prevent concrete leakage. The connection between the end plates and side plates must be tight and reliable to ensure the dimensional accuracy and sealing of the segment end faces.

[0023] In this embodiment, when it is necessary to position and pour the reinforcing bars, a suitable first steel plate 201 and a second steel plate 202 are selected and installed inside the segment mold 100. A release agent is applied to the inner surface of the segment mold 100 so that the first steel plate 201 and the second steel plate 202 are tightly attached to the segment mold 100, thereby ensuring the accuracy of positioning the reinforcing bars. The side plates and end plates are then fixed to the mold frame in sequence with bolts.

[0024] At this point, the reinforcing bars are appropriately bent, cut, and processed, and then passed through the through holes 204 on the reinforcing plate 203. The reinforcing plate 203 not only provides structural rigidity, but the spacing of the multiple through holes 204 also directly determines the pre-installed position of the reinforcing bars, which not only fixes the reinforcing cage but also strengthens the position of the longitudinal reinforcing bars connecting the first steel plate 201, the second steel plate 202, and the concrete. At this time, the anchor rod 205 is used to position the reinforcing bars, so that the reinforcing bars are assembled into a reinforcing cage. U-bolts are used to abut against the reinforcing bars and are fixed with nuts, so that the reinforcing cage is positioned in an arc shape on the first steel plate 201, the second steel plate 202, and the reinforcing plate 203.

[0025] Concrete is poured into the segment mold 100 by layered pouring. The thickness of each layer should not be too large. During the pouring process, a vibrator is used to vibrate the concrete to remove air and ensure the compactness of the concrete. After the concrete is poured to the design elevation, the surface of the segment is leveled to remove surface laitance and air bubbles, making the surface of the segment smooth and flat.

[0026] After the concrete is poured, the tunnel segments should be cured promptly to ensure normal strength development. Once the concrete segments have reached a certain strength, the demolding process can begin.

[0027] like Figure 4 As shown, a support cylinder 206 is hinged to the top of both the first steel plate 201 and the second steel plate 202. A support rod 207 is slidably connected to the inner wall of the support cylinder 206. An mounting block 208 is hinged to the surface of the support rod 207. One side of the mounting block 208 contacts one side of the segment mold 100. A first bolt 210 is threadedly connected to the inner wall of the support cylinder 206. The surface of the first bolt 210 is threadedly connected to the inner wall of the support rod 207. Several second bolts 209 are threadedly connected to the inner wall of the mounting block 208. The surface of the second bolts 209 is threadedly connected to the inner wall of the segment mold 100.

[0028] In this embodiment, the support rod 207 is pulled to move to a suitable position within the support cylinder 206, so that the mounting block 208 is pressed against one side of the inner wall of the segment mold 100. An electric screwdriver is used to thread the second bolt 209 into the segment mold 100 and the mounting block 208, and the first bolt 210 is threaded into the support cylinder 206 and the support rod 207. The other mounting blocks 208 are fixed into the segment mold 100 one by one in the same manner, thereby fixing the first steel plate 201 and the second steel plate 202 into the segment mold 100.

[0029] like Figure 3 and Figure 5 As shown, the surfaces of the first steel plate 201, the second steel plate 202, and the reinforcing plate 203 are all curved into an arc shape. A rubber block 211 is slidably connected to the inner wall of the first steel plate 201. The surface of the rubber block 211 is engaged with the inner wall of the second steel plate 202. A magnetic block 212 is magnetically attracted to the inner wall of the first steel plate 201. The bottom of the magnetic block 212 contacts the top of the rubber block 211.

[0030] In this embodiment, based on the diameter and curvature of the segment mold 100, a first steel plate 201 and a second steel plate 202 of appropriate size are selected. The first steel plate 201 is clamped onto the second steel plate 202. A rubber block 211 is slid into the first steel plate 201 and clamped into the second steel plate 202. A magnetic block 212 is slid into the first steel plate 201 and attracted into the first steel plate 201, so that the first steel plate 201 and the second steel plate 202 are assembled into one piece. At this time, the assembled first steel plate 201 and the second steel plate 202 are placed into the segment mold 100, so that the first steel plate 201 and the second steel plate 202 are tightly attached to the segment mold 100.

[0031] Working principle: The first steel plate 201 is secured to the second steel plate 202. A rubber block 211 is slid into the first steel plate 201 and secured to the second steel plate 202. A magnetic block 212 is slid into the first steel plate 201 and attracted to it. The assembled first steel plate 201 and second steel plate 202 are then placed and pressed tightly against the segment mold 100. The support rod 207 is pulled to move to a suitable position within the support cylinder 206, causing the mounting block 208 to press against one side of the inner wall of the segment mold 100. An electric screwdriver is used to thread the second bolt 209 into the segment mold 100 and the mounting block 208. The first screw... Bolt 210 is threadedly installed inside support cylinder 206 and support rod 207. Several other mounting blocks 208 are fixed one by one inside segment mold 100 in the same manner as described above, thereby fixing the first steel plate 201 and the second steel plate 202 inside segment mold 100. The reinforcing bars are appropriately bent, cut, etc., and passed through the through hole 204 on the reinforcing plate 203. Anchor rod 205 is used to position the reinforcing bars, so that the reinforcing bars are assembled into a reinforcing cage. U-bolts are used to abut against the reinforcing bars and fixed with nuts, so that the reinforcing cage is positioned in an arc shape on the first steel plate 201, the second steel plate 202 and the reinforcing plate 203.

[0032] It should be noted that the segment mold 100, the first steel plate 201, the second steel plate 202, the reinforcing plate 203, the anchor rod 205, and the magnetic block 212 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A special segment casting reinforcement positioning structure, characterized in that, include: Segment mold (100); The positioning mechanism (200) includes a first steel plate (201) and a second steel plate (202) disposed inside the segment mold (100). The inner wall of the first steel plate (201) is engaged with the surface of the second steel plate (202). A reinforcing plate (203) is fixedly connected to the top of the first steel plate (201). Anchor rods (205) are fixedly connected in equal rows to the surfaces of the first steel plate (201), the second steel plate (202) and the reinforcing plate (203). Several through holes (204) are opened on both sides of the reinforcing plate (203).

2. The special segment casting reinforcement positioning structure according to claim 1, characterized in that, The top of the first steel plate (201) and the second steel plate (202) are both hinged with a support cylinder (206), and the inner wall of the support cylinder (206) is slidably connected with a support rod (207).

3. The special segment casting reinforcement positioning structure according to claim 2, characterized in that, The surface of the support rod (207) is hinged with a mounting block (208), one side of which contacts one side of the segment mold (100).

4. The special segment casting reinforcement positioning structure according to claim 1, characterized in that, The surfaces of the first steel plate (201), the second steel plate (202), and the reinforcing plate (203) are all curved into an arc shape.

5. The special segment casting reinforcement positioning structure according to claim 2, characterized in that, The inner wall of the support cylinder (206) is threaded with a first bolt (210), and the surface of the first bolt (210) is threaded to the inner wall of the support rod (207).

6. The special segment casting reinforcement positioning structure according to claim 3, characterized in that, The inner wall of the mounting block (208) is threaded with a number of second bolts (209), and the surface of the second bolts (209) is threaded to the inner wall of the segment mold (100).

7. The special segment casting reinforcement positioning structure according to claim 1, characterized in that, A rubber block (211) is slidably connected to the inner wall of the first steel plate (201), and the surface of the rubber block (211) is engaged with the inner wall of the second steel plate (202).

8. The special segment casting reinforcement positioning structure according to claim 7, characterized in that, The inner wall of the first steel plate (201) is magnetically attached to a magnetic block (212), and the bottom of the magnetic block (212) is in contact with the top of the rubber block (211).

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