A self-stabilizing device for a platform with a single-side thickened template and a self-stabilizing construction method thereof

Abstract

The present application provides a self-stabilizing device for a single-side thickened formwork of a platform body and a self-stabilizing construction method thereof, the self-stabilizing device comprises, from the inside to the outside, a stabilizing frame implanted in the original platform body, a stabilizing formwork, and multiple sets of fixing devices; one side of the stabilizing frame is connected to the original platform body by glue injection, and the other side of the stabilizing frame is connected to the stabilizing formwork by a fixing device; the multiple sets of fixing devices respectively comprise a connecting piece for connecting the stabilizing formwork and the stabilizing frame, one end of the connecting piece is provided with a hooking portion, and the other end of the connecting piece is provided with a clamping piece, and the clamping piece is movably connected to the connecting piece; during the platform body reinforcement process, the hooking portion of the connecting piece is passed through the stabilizing formwork and hooked on the stabilizing frame and the stabilizing formwork in turn, and then by adjusting the movement of the clamping piece in the connecting piece, the inner wall of the clamping piece is pressed against the stabilizing formwork, the stabilizing formwork is stabilized by itself, and the bracket is no longer used to support the stabilizing formwork, and the support of the bracket is reduced, thereby reducing the investment in construction materials and saving construction costs.

Description

Technical Field

[0001] The invention relates to the technical field of bridge abutment reinforcement, and in particular to a self-stabilizing device for a single-side thickened template of an abutment and a self-stabilizing construction method thereof. Background Art

[0002] The reinforced formwork is used for the one-side thickening construction of structures in renovation and expansion projects. It can be used for formwork reinforcement construction in limited spaces and can be used for structure formwork reinforcement construction near rivers.

[0003] The common structural thickening formwork reinforcement construction adopts the scaffolding method. When the scaffolding method is used for construction, after the channel site is leveled, the scaffolding support is set up, and the formwork is rotated and fixed by adjusting rods. When pouring concrete, both sides need to be poured simultaneously.

[0004] However, the bracket requires the purchase of a large number of steel pipes for building the bracket, which results in high cost investment. Summary of the invention

[0005] The present application provides a self-stabilizing device for a single-side thickened formwork of a platform body and a self-stabilizing construction method thereof, in order to solve the problem of high cost investment due to the need to purchase a large number of steel pipes for building the support when using the support method for construction.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A self-stabilizing device with a thickened template on one side of a platform, the self-stabilizing device comprising, from the inside to the outside, a stabilizing frame implanted in the original platform, a stabilizing template, and multiple sets of fixing devices;

[0008] One side of the stabilizing frame is connected to the original platform body by glue injection, and the other side of the stabilizing frame is connected to the stabilizing template by a fixing device;

[0009] The multiple groups of fixing devices respectively include connecting pieces for connecting the stabilizing template and the stabilizing frame, one end of the connecting piece is provided with a hooking portion, the other end of the connecting piece is provided with a clamping piece, and the clamping piece is movably connected to the connecting piece;

[0010] The hooking portion of the connecting piece passes through the stabilizing template and is hooked with the stabilizing frame, and the inner wall of the clamping piece abuts against the stabilizing template.

[0011] Further: the connecting piece is J-shaped.

[0012] Further: a plurality of groups of anti-skid edges are arranged on the inner wall of the hook portion, and the plurality of groups of anti-skid edges are evenly spaced and distributed on the inner wall of the hook portion.

[0013] Further: the clamping member includes a nut and a clamping plate, the nut and the clamping plate are sequentially sleeved on the ends of the connecting member, and the nut and the clamping plate are respectively connected to the connecting member through threads.

[0014] Further, the middle of the clamping plate is recessed inwards, and the clamping plate is bent downwards on both sides with the recess as the center to form two symmetrical arches.

[0015] Further: the stabilizing frame comprises a plurality of parallel transverse steel bars and a plurality of parallel longitudinal steel bars, the plurality of transverse steel bars and the plurality of longitudinal steel bars are cross-arranged to form a mesh, and the transverse steel bars are welded to the longitudinal steel bars;

[0016] Binding steel bars are welded between the two adjacent transverse steel bars, and the binding steel bars include supporting steel bars and connecting steel bars. The supporting steel bars and the connecting steel bars are integrally connected to form an L shape, and the ends of the supporting steel bars are implanted into the original platform body and fixed by glue injection. The supporting steel bars and the connecting steel bars are respectively welded to the two adjacent transverse steel bars.

[0017] Further: the stable formwork includes a reinforcement plate and a plurality of groups of support tubes;

[0018] One side of the reinforcement plate is in contact with the stabilizing frame, and the other side of the reinforcement plate is connected to multiple groups of support pipes;

[0019] The reinforcing plate is provided with a plurality of holes matched with the connecting piece, and the hooking part passes through the holes and is hooked with the stabilizing frame;

[0020] The inner wall of the clamping piece abuts against two adjacent support tubes.

[0021] A self-stabilizing construction method for a platform with a single-side thickened template, the self-stabilizing construction method specifically comprising the following steps:

[0022] The original platform body is chiseled;

[0023] Drill holes and plant reinforcement on the side wall of the original platform;

[0024] Inject glue into the steel bars implanted on the side wall of the original platform;

[0025] The steel bars implanted on the side wall of the original platform were subjected to pull-out test;

[0026] Tie up the steel bars implanted on the side wall of the original platform;

[0027] The steel bar support formwork implanted on the side wall of the original platform;

[0028] Reinforcement formwork;

[0029] The template is self-stabilizing;

[0030] pouring concrete;

[0031] Remove the formwork for health preservation.

[0032] The technical solution provided by this application includes the following beneficial technical effects:

[0033] A self-stabilizing device for a single-side thickened template of a platform body realizes the reinforcement of the platform body by sequentially arranging a stabilizing frame, a stabilizing template, and multiple sets of fixing devices on the side wall of the original platform body from inside to outside.

[0034] During the platform body reinforcement process, the hooking part of the connecting piece is passed through the stabilizing formwork and hooked on the stabilizing frame and the stabilizing formwork in turn. Then, by adjusting the movement of the clamping piece in the connecting piece, the inner wall of the clamping piece is pressed against the stabilizing formwork, and the stabilizing formwork is stabilized by itself. The bracket is no longer used to support the stabilizing formwork. By reducing the support of the bracket, the investment in construction materials is reduced, saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] Figure 1 This is a schematic diagram of the structure of the entire device of this application;

[0037] Figure 2 For this application Figure 1 The structural diagram without the stabilizing template and the fixing device is shown to illustrate the specific structural composition of the stabilizing frame;

[0038] Figure 3 For this application Figure 1 The structural diagram of the stable formwork in the figure shows the specific structural composition of the stable formwork;

[0039] Figure 4 For this application Figure 1 Schematic diagram of the structure of the fixing device.

[0040] Explanation of the reference numerals: 1. Stabilizing frame; 11. Horizontal reinforcement; 12. Longitudinal reinforcement; 13. Binding reinforcement; 14. Support reinforcement; 15. Connecting reinforcement; 2. Stabilizing formwork; 21. Reinforcement plate; 22. Support pipe; 23. Holes; 3. Fixing device; 31. Connector; 32. Hook; 33. Snap-on; 34. Anti-slip edge; 35. Nut; 36. Snap-on plate. DETAILED DESCRIPTION

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0043] Please refer to the attached Figure 1 , which shows a schematic diagram of the structure of the entire device provided in this embodiment

[0044] The present application provides a self-stabilizing device with a thickened template on one side of a platform body, wherein the self-stabilizing device comprises, from the inside to the outside, a stabilizing frame 1 implanted in the original platform body, a stabilizing template 2, and a plurality of fixing devices 3.

[0045] Reference Figure 1 and Figure 2 The stabilizing frame 1 includes three hundred parallel transverse steel bars 11 and three hundred parallel longitudinal steel bars 12. The three hundred transverse steel bars 11 and the three hundred longitudinal steel bars 12 are cross-arranged to form a mesh, and the transverse steel bars 11 and the longitudinal steel bars 12 are welded.

[0046] Binding steel bars 13 are welded between two adjacent transverse steel bars 11. The binding steel bars 13 include supporting steel bars 14 and connecting steel bars 15. The supporting steel bars 14 and the connecting steel bars 15 are integrally connected to form an L shape. The ends of the supporting steel bars 14 are implanted into the original platform body and fixed by glue injection. The supporting steel bars 14 and the connecting steel bars 15 are respectively welded to the two adjacent transverse steel bars 11. By binding the binding steel bars 13, the stabilizing frame 1 is made more stable.

[0047] Reference Figure 1 and Figure 3 The stable formwork 2 includes a reinforcement plate 21 and multiple groups of support tubes 22.

[0048] One side of the reinforcing plate 21 abuts against the stabilizing frame 1 , and the other side of the reinforcing plate 21 is connected to a plurality of support tubes 22 .

[0049] The reinforcing plate 21 is provided with a plurality of holes 23 that cooperate with the connecting piece 31 .

[0050] Reference Figure 1 and Figure 4 The multiple sets of fixing devices 3 respectively include connecting pieces 31 for connecting the stabilizing template 2 and the stabilizing frame 1, one end of the connecting piece 31 is provided with a hook portion 32, and the other end of the connecting piece 31 is provided with a clamping piece 33, and the clamping piece 33 is movably connected to the connecting piece 31.

[0051] The connecting member 31 is J-shaped, and a plurality of groups of anti-skid edges 34 are arranged on the inner wall of the hook portion 32 . The plurality of groups of anti-skid edges 34 are evenly spaced and distributed on the inner wall of the hook portion 32 to increase the friction of the hook portion 32 .

[0052] The hooking portion 32 passes through the hole 23 and is hooked with the transverse reinforcement 11 and the main reinforcement.

[0053] The clamping member 33 includes a nut 35 and a clamping plate 36. The nut 35 and the clamping plate 36 are sequentially sleeved on the ends of the connecting member 31. The nut 35 and the clamping plate 36 are respectively connected to the connecting member 31 through threads.

[0054] The operator rotates the nut 35 with a wrench, and the nut 35 rotates to feed downward through the thread, and the downward feeding of the thread pushes the clamping plate 36 to feed downward until the inner wall of the clamping plate 36 abuts against the support tube 22.

[0055] The middle of the clamping plate 36 is recessed inwards to facilitate the nut 35 to push the clamping plate 36 . The clamping plate 36 is bent downwards on both sides with the recess as the center to form two symmetrical arches, so that the arc-shaped clamping plate 36 can better clamp the support tube 22 .

[0056] Working principle: The platform body is reinforced by sequentially arranging a stabilizing frame 1, a stabilizing template 2, and a plurality of fixing devices 3 on the side wall of the original platform body from the inside to the outside.

[0057] During the platform body reinforcement process, the hook portion 32 of the connecting piece 31 passes through the stabilizing template 2 and hooks the stabilizing frame 1 and the stabilizing template 2 in turn. Then, by adjusting the movement of the clamping piece 33 in the connecting piece 31, the inner wall of the clamping piece 33 is pressed against the stabilizing template 2, and the stabilizing template 2 is stabilized by itself. The bracket is no longer used to support the stabilizing template 2. By reducing the support of the bracket, the investment in construction materials is reduced, saving construction costs.

[0058] A self-stabilizing construction method for a platform with a single-side thickened template, the self-stabilizing construction method specifically comprising the following steps:

[0059] S1. The original platform is roughened.

[0060] The original platform concrete is roughened with a chiseling machine. The chiseling depth is 10 to 15 mm, the spacing between the chiseling marks is 30 mm, and the chiseling rate is not less than 90%. Afterwards, the floating slurry part is chiseled off to expose large stones, clean up the debris, rinse with water, clean up the floating dust, mortar, oil stains, and clean up the loose concrete stones. The depth must be at least 10 mm.

[0061] S2. Drill holes and plant reinforcement bars on the side wall of the original platform.

[0062] S21. Drilling and hole cleaning.

[0063] After the original platform is roughened, use ink lines to draw horizontal and vertical grids of 30cm, drill holes at the intersection of the ink lines, use electric hammer drills to drill holes according to the designed depth of rebar planting, and then use compressed air to clean the holes, brush three times with a brush, and blow three times to ensure that the hole wall is dust-free. To ensure the quality of anchoring, if there is water accumulation, the water in the drill hole must be removed with a dry veil to ensure that there is no water accumulation in the hole and the hole wall is dry.

[0064] S3. Inject glue into the steel bars implanted on the side wall of the original platform.

[0065] Put the rebar embedding glue into the glue gun, rotate the stirring head to the bottom of the hole and start injecting the glue, slowly move outward until 2 / 3 of the volume is filled, and ensure that a small amount of glue overflows around the steel bar after the steel bar is inserted. The rebar embedding adhesive uses a special modified epoxy adhesive.

[0066] S4. Conduct pull-out test on the steel bars implanted on the side wall of the original platform.

[0067] For every 300 embedded steel bars, one group of pull-out tests shall be conducted, with no less than 3 bars in each group. The pull-out test shall be conducted using a system consisting of a jack, anchor, and reaction frame. According to the design documents, the loading force of a single embedded steel bar with a diameter of 16 mm shall not be less than 67.4 KN. Based on the wall area of ​​approximately 490 m 2 .

[0068] S5. Tie up the steel bars implanted on the side wall of the original platform;

[0069] Wait for the anchor glue to solidify, weld the anchor and vertical steel bars, the vertical steel bar design spacing is 15cm, the anchor spacing is 30cm, and then intersperse the transverse steel bars with the vertical steel bars and weld them. The transverse steel bars are arranged at a spacing of 15cm to form a 30cm×15cm steel mesh; after the transverse steel bars are welded, insert a vertical steel bar between the vertical spacing of 30cm and weld it to the transverse steel bars to finally form a 15×15cm steel mesh. Welding is used instead of conventional steel bar binding at all steel bar intersections to enhance the stability of the steel bars of the single-side widened (20cm thick) platform.

[0070] S6. The steel bar support formwork implanted on the side wall of the original platform.

[0071] S61. Template processing.

[0072] The template is fixed by hooking the steel bar grid, opening a 60×60cm hole 23 on the template, and fastening a double row of Φ48×3.5mm steel pipes as vertical ribs on the back rib of the template with butterfly buckles.

[0073] The "hook" steel bar is made of Φ16 steel bar, 20cm in length, which is bent at the end with an automatic bending machine to form a "hook" shape, and the other end is welded to a spiral rod with a butterfly buckle.

[0074] S7. Reinforce the formwork.

[0075] The size of a single template is 1.5m×1m, and the height of the channel platform is 4.2m. Three vertical templates and two horizontal templates are used for assembly to form a 4.5m×2m structure, which is convenient for overall lifting. The "hook" steel bars with butterfly buckles are inserted into the holes, the template is polished and coated with mold agent, the template joints are flat, the assembly docking bolts are tightened firmly, the butterfly buckles are tightened, and the support template is completed.

[0076] S8. Template self-stabilization.

[0077] The template is self-stabilized by welding the implanted steel bars and the horizontal and vertical steel bars 12 into a steel mesh frame to form an overall force. After the template is hoisted and close to the steel mesh frame, the "hook" steel bar is rotated to hook the vertical steel bar welded to the implanted steel bar, and the butterfly buckle is tightened. The template does not require any external support and can be self-stabilized on one side of the platform.

[0078] S9. pouring concrete;

[0079] The thickened concrete of the platform body is C30 shrinkage compensation concrete. The mix ratio of C30 concrete in the laboratory is cement: sand: crushed stone: water: admixture = 370: 728: 1187: 157: 5.6, of which crushed stone 0-4.95: 4.95-19.5: 19.5-26.5 = 240: 423: 524. Considering that the thickened part is 0.2m wide and has dense steel bars, 12 horizontal and vertical steel bars and embedded steel bars, the concrete is easy to impact the steel bars and cause segregation during the pouring process. After analyzing the on-site pouring process, the crushed stone mix ratio was optimized to 0-4.95:4.95-19.5:19.5-26.5=240:674:273, which increased 4.95-19.5 by 251Kg and reduced 19.5-26.5 by 251Kg, thereby reducing the impact of large-particle crushed stone on the steel bars. During the pouring process, the material was poured slowly and vibrated every other vertical steel bar (vibration interval was 30cm).

[0080] S10. Remove the formwork and maintain health.

[0081] After the concrete pouring is completed, the formwork is removed. After the formwork is removed, the concrete does not expand, the surface is flat and there are no voids, honeycombs, or pockmarks. After the formwork is removed, the PVC pipe is trimmed and local positions are modified to achieve the construction effect of single-side formwork reinforcement platform body.

[0082] Through the study of the self-stabilizing construction method of the single-sided thickened formwork of the platform body in the above embodiment, the problem of ensuring the passage during construction is solved. After comparative analysis, the construction efficiency is higher than that of conventional scaffolding and mold turning construction, which improves the construction progress. Due to the reduction of scaffolding support, the investment in construction materials is reduced, and the construction cost is saved.

[0083] It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0084] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

[0085] It should be understood that the present application is not limited to what has been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A self-stabilizing device with a thickened template on one side of the platform. It is characterized in that The self-stabilizing device comprises, from the inside to the outside, a stabilizing frame (1) implanted in the original platform body, a stabilizing template (2), and a plurality of fixing devices (3); One side of the stabilizing frame (1) is connected to the original platform body by glue injection, and the other side of the stabilizing frame (1) is connected to the stabilizing template (2) by a fixing device (3); The plurality of fixing devices (3) respectively comprise connecting pieces (31) for connecting the stabilizing template (2) and the stabilizing frame (1), one end of the connecting piece (31) is provided with a hooking portion (32), the other end of the connecting piece (31) is provided with a clamping piece (33), and the clamping piece (33) is movably connected to the connecting piece (31); The hooking portion (32) of the connecting member (31) passes through the stabilizing template (2) and is hooked with the stabilizing frame (1), and the inner wall of the clamping member (33) is in contact with the stabilizing template (2); The clamping member (33) comprises a nut (35) and a clamping plate (36), the nut (35) and the clamping plate (36) are sequentially sleeved on the ends of the connecting member (31), and the nut (35) and the clamping plate (36) are respectively connected to the connecting member (31) through threads; The middle of the clamping plate (36) is recessed inwards, and the clamping plate (36) is bent downwards on both sides with the recessed part as the center to form two symmetrical arches; The stabilizing frame (1) comprises a plurality of parallel transverse steel bars (11) and a plurality of parallel longitudinal steel bars (12), wherein the plurality of transverse steel bars (11) and the plurality of longitudinal steel bars (12) are arranged crosswise to form a mesh, and the transverse steel bars (11) and the longitudinal steel bars (12) are welded; A binding steel bar (13) is welded between two adjacent transverse steel bars (11), the binding steel bar (13) comprises a supporting steel bar (14) and a connecting steel bar (15), the supporting steel bar (14) and the connecting steel bar (15) are integrally connected to form an L shape, the end of the supporting steel bar (14) is implanted into the original platform body and fixed by glue injection, and the supporting steel bar (14) and the connecting steel bar (15) are respectively welded to the two adjacent transverse steel bars (11); The stable template (2) comprises a reinforcement plate (21) and a plurality of groups of support pipes (22); One side of the reinforcing plate (21) is in contact with the stabilizing frame (1), and the other side of the reinforcing plate (21) is connected to a plurality of groups of supporting tubes (22); The reinforcing plate (21) is provided with a plurality of taking holes (23) matched with the connecting piece (31), and the hooking portion (32) passes through the taking holes (23) and is hooked with the stabilizing frame (1); The inner wall of the clamping piece (33) abuts against two adjacent support tubes (22).

2. A self-stabilizing device for a platform with a thickened template on one side according to claim 1, It is characterized in that The connecting piece (31) is J-shaped.

3. A self-stabilizing device for a platform with a single-side thickened template according to claim 1 or 2, It is characterized in that A plurality of groups of anti-slip edges (34) are arranged on the inner wall of the hooking portion (32), and the plurality of groups of anti-slip edges (34) are evenly spaced and distributed on the inner wall of the hooking portion (32).

4. A self-stabilizing construction method for a platform with a single-sided thickened formwork, based on the self-stabilizing device for a platform with a single-sided thickened formwork as claimed in any one of claims 1 to 3, It is characterized in that The self-stabilizing construction method specifically comprises the following steps: The original platform body is chiseled; Drill holes and plant reinforcement on the side wall of the original platform; Inject glue into the steel bars implanted on the side wall of the original platform; The steel bars implanted on the side wall of the original platform were subjected to pull-out test; Tie up the steel bars implanted on the side wall of the original platform; The steel bar support formwork implanted on the side wall of the original platform; Reinforcement formwork; The template is self-stabilizing; pouring concrete; Remove the formwork for health preservation.

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