Self-compacting concrete pouring formwork structure suitable for anchoring end in T-beam external prestressing reinforcement
By designing a self-contained concrete pouring formwork structure that reinforces steel bars and supports steel bars in the external prestressing reinforcement of T beams, the problems of traditional formwork structures in terms of casting quality and construction efficiency are solved, and more efficient reinforcement effects and lower construction costs are achieved.
Patent Information
- Application Number
- CN202420614760.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The traditional self-contained concrete pouring formwork structure has problems such as unstable casting quality, complex formwork installation and low construction efficiency in the external prestressing reinforcement of T beams, which affects the reinforcement effect and increases construction cost and construction period.
A self-solid concrete cast formwork structure for anchoring ends suitable for external prestressing reinforcement of T beams was designed. The reinforced steel bars and supporting steel bars were set up to ensure the stability of the formwork, and the gaps were filled with high viscosity foam and polyurethane foam caulking agent to improve the pouring quality and construction efficiency.
The design of this formwork structure makes installation, adjustment and disassembly more convenient, improves the reinforcement effect and pouring quality, reduces construction difficulty and labor intensity, and is in line with the concept of energy conservation and emission reduction due to the use of wooden structures and environmentally friendly materials.
Smart Images
Figure CN222575287U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of T-beam external prestressed reinforcement construction, in particular to a self-compacting concrete pouring template structure suitable for the anchor end in the T-beam external prestressed reinforcement. Background Art
[0002] External prestressing is a method of actively reinforcing bridge structures, which can greatly improve the bearing capacity and stiffness of the structure, improve the stress level of the structure, and close some cracks. In this reinforcement method, the pouring of self-compacting concrete at the anchor end is a crucial link, which is directly related to the effect of prestressing reinforcement and the safety of the bridge.
[0003] Traditional self-compacting concrete casting formwork structures often have some problems, such as unstable casting quality, complex formwork installation, low construction efficiency, etc. These problems not only affect the reinforcement effect, but also increase the construction cost and construction period. In recent years, with the continuous emergence of new materials and new processes, as well as the continuous advancement of construction technology, favorable conditions have been provided for the research and development of new self-compacting concrete casting formwork structures. The utility model develops a new type of anchor end self-compacting concrete casting formwork structure suitable for T-beam external prestressing reinforcement, which has important practical value. Utility Model Content
[0004] The purpose of the utility model is to provide a self-compacting concrete casting template structure suitable for the anchor end in the external prestressed reinforcement of T-beams in view of the above-mentioned problems. The targeted template design makes installation, adjustment and disassembly more convenient, and reinforcing steel bars and supporting steel bars are provided to ensure that the template is not easily deformed or damaged during the casting process, thereby improving the reinforcement effect and casting quality.
[0005] The technical solution of the utility model is as follows:
[0006] The utility model discloses a self-compacting concrete casting template structure suitable for the anchor end in the external prestressed reinforcement of a T-beam, comprising two casting template structures respectively located at both sides of a T-beam structure, one side surfaces of the two casting template structures respectively fit the T-beam structure and are symmetrically arranged; the two casting template structures are respectively formed by interconnecting a bottom plate template, a cover plate template, a front support plate, a rear support plate and a side plate support plate; reinforcing steel bars are further arranged behind the side plate support plate, the bottom plate template is placed on the supporting steel bars, and one end of the supporting steel bars is inserted into the T-beam structure; supporting steel bars inserted into the T-beam structure are respectively arranged behind the front support plate and the rear support plate.
[0007] Preferably, the base plate template includes a base plate, a first base plate reinforcing beam and a second base plate reinforcing beam fixed to each other, and the first base plate reinforcing beam and the second base plate reinforcing beam are arranged below the base plate and extend out of the base plate longitudinally along the T-beam structure.
[0008] Preferably, the side panel support plate includes mutually connected side panels, a first side panel reinforcement beam, a second side panel reinforcement beam and a third side panel reinforcement beam, the first side panel reinforcement beam, the second side panel reinforcement beam and the third side panel reinforcement beam are arranged on the back side of the side panel and longitudinally along the T-beam structure; reinforcing steel bars are also arranged on the first side panel reinforcement beam, the second side panel reinforcement beam and the third side panel reinforcement beam.
[0009] Preferably, holes are opened in the middle of the front support plate, the rear support plate and the side plate support plates; the hole shape of the front support plate is circular, the hole shape of the rear support plate is rectangular, and the hole shape of the side plate support plate is rectangular; an anchor plate is provided in the rear support plate, embedded steel pipes pass through the holes in the front support plate and the rear support plate, and a bolt anchor plate is provided in the side plate support plate; an anchor block is provided in the casting formwork structure to anchor the steel bars.
[0010] Preferably, the bottom plate template, the front support plate, the rear support plate, and the contact portions with the side plate support plates are glued by high-viscosity foam.
[0011] Preferably, the supporting steel bars, bottom plate formwork and anchor block anchor steel bars are fastened by galvanized anti-rust iron wire; the supporting steel bars, front support plate and anchor block anchor steel bars are fastened by galvanized anti-rust iron wire; the supporting steel bars, rear support plate and anchor block anchor steel bars are fastened by galvanized anti-rust iron wire; the reinforcing steel bars, side plate support plate and anchor block anchor steel bars are fastened by galvanized anti-rust iron wire.
[0012] Preferably, the base plate formwork, cover plate formwork, front support plate, rear support plate, side plate support plate, and the first base plate reinforcement beam, the second base plate reinforcement beam, the first side plate reinforcement beam, the second side plate reinforcement beam, and the third side plate reinforcement beam are all wooden structures.
[0013] Preferably, the joints between the formwork panels, the joints between the front support plate and the embedded steel pipe, the joints between the rear support plate and the anchor plate, and the joints between the side plate support plate and the bolt anchor plate are all filled with polyurethane foam filler.
[0014] Preferably, one T-beam structure is equipped with four casting formwork structures.
[0015] Preferably, a pouring port is provided on the cover plate template.
[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0017] 1. The utility model is easy to assemble and can be used repeatedly, which greatly accelerates the pouring rate of self-compacting concrete at the anchor end in the external prestressed reinforcement of the T-beam.
[0018] 2. The provision of reinforcing steel bars and supporting steel bars in the present invention enhances the overall stability and bearing capacity of the formwork, ensuring that the formwork is not easily deformed or damaged during the pouring process.
[0019] 3. The structure of the utility model adopts a standardized design, which makes the production, installation and disassembly process of the template more convenient and greatly improves the construction efficiency.
[0020] 4. The utility model adopts new materials such as high-viscosity foam and polyurethane foam filler to effectively fill the gaps, prevent concrete leakage, and avoid quality problems such as voids, fallen edges and corners, and irregular edges after the pouring process is completed.
[0021] 5. The design of the structure of the utility model takes into account the convenience of construction workers, making the installation, adjustment and disassembly process of the template simpler and more intuitive, reducing the construction difficulty and labor intensity.
[0022] 6. The utility model adopts wooden structure template materials, which meets environmental protection requirements. By optimizing the design and construction process, it reduces material waste and energy consumption, and complies with the concept of energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The utility model is a structural schematic diagram of a self-compacting concrete casting template structure suitable for the anchor end in the external prestressed reinforcement of a T-beam.
[0024] Figure 2 It is a structural schematic diagram of the side plate support plate in the utility model.
[0025] Figure 3 It is a structural schematic diagram of the bottom plate template in the utility model.
[0026] Figure 4 It is a structural schematic diagram of the front support in the utility model.
[0027] Figure 5 It is a structural schematic diagram of the rear support plate in the utility model.
[0028] Figure 6 It is a schematic diagram of the internal structure of the utility model.
[0029] Figure 7 It is a structural schematic diagram of the cover plate template in the utility model.
[0030] Figure 8 It is a structural schematic diagram of the installation of the cover plate template in the utility model.
[0031] Figure markings: 1-bottom plate formwork, 101-bottom plate, 102-first bottom plate reinforcing beam, 103-second bottom plate reinforcing beam, 2-side plate support plate, 201-side plate, 202-first side plate reinforcing beam, 203-second side plate reinforcing beam, 204-third side plate reinforcing beam, 3-front support plate, 4-rear support plate, 5-cover plate formwork, 6-supporting steel bars, 7-reinforcing steel bars, 8-T-beam structure, 9-anchor block anchoring steel bars, 10-bolt anchor plate, 11-anchor pad. DETAILED DESCRIPTION
[0032] It should be noted that relational terms such as "first" and "second" are used only 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", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, 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 "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0033] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.
[0034] like Figure 1 As shown, the utility model discloses a self-compacting concrete casting formwork structure suitable for the anchor end in the external prestressed reinforcement of a T-beam, including two casting formwork structures respectively located on both sides of a T-beam structure 8, and one side of the two casting formwork structures are symmetrically arranged to fit the T-beam structure 8. The two casting formwork structures are respectively connected to form a whole by a bottom plate formwork 1, a cover plate formwork 5, a front support plate 3, a rear support plate 4 and a side plate support plate 2. A reinforcing steel bar 7 is also arranged behind the side plate support plate 2, and the bottom plate formwork 1 is placed on the support steel bar 6, and one end of the support steel bar 6 is inserted into the T-beam structure 8; the front support plate 3 and the rear support plate 4 are respectively provided with support steel bars 6 inserted into the T-beam structure 8.
[0035] like Figure 2As shown, the side panel support plate 2 of the utility model comprises a side panel 201, a first side panel reinforcement beam 202, a second side panel reinforcement beam 203 and a third side panel reinforcement beam 204 which are connected to each other. The first side panel reinforcement beam 202 and the third side panel reinforcement beam 204 are respectively located on both sides of the second side panel reinforcement beam 203. The first side panel reinforcement beam 202, the second side panel reinforcement beam 203 and the third side panel reinforcement beam 204 are respectively fixed to the back of the side panel 201 and are arranged longitudinally along the T-beam structure 8. Reinforcement steel bars 7 are also arranged on the first side panel reinforcement beam 202, the second side panel reinforcement beam 203 and the third side panel reinforcement beam 204. A rectangular hole is also opened on the side panel support plate 2. The size of the hole is slightly smaller than the size of the bolt anchor plate 10, and the side length is preferably 2 cm smaller than that of the bolt anchor plate 10.
[0036] like Figure 3 As shown, the bottom plate template 1 of the utility model includes a bottom plate 101, a first bottom plate reinforcing beam 102 and a second bottom plate reinforcing beam 103 fixed to each other, the first bottom plate reinforcing beam 102 and the second bottom plate reinforcing beam 103 are arranged below the bottom plate 101, and extend out of the bottom plate along the longitudinal direction of the T-beam structure 8. The first bottom plate reinforcing beam 102 is close to the side of the T-beam structure 8, and the second bottom plate reinforcing beam 103 is away from the side of the T-beam structure 8. In one embodiment, the first bottom plate reinforcing beam 102 is flush with the bottom plate template 1 along the longitudinal direction of the T-beam structure 8, and the second bottom plate reinforcing beam 103 slightly extends out of the bottom plate template 1 along the longitudinal direction of the T-beam structure 8, and the extension length is 3 to 5 cm.
[0037] like Figure 4 As shown, the front support plate 3 in the utility model is a template with three right-angle sides and one irregular side. The front support plate 3 has a hole, and the hole shape is circular, which can allow the embedded steel pipe in the anchor block to pass through.
[0038] like Figure 5 As shown, the rear support plate 4 in the utility model is a rectangular plate, with an anchor plate 11 provided inside. Holes are opened on the rear support plate 4 and the anchor plate 11. The shape of the openings is rectangular. The size of the openings is slightly smaller than that of the anchor plate, and the side length is preferably 2 cm smaller than that of the anchor plate.
[0039] like Figure 6 As shown, there is a pre-buried steel pipe inside the utility model, one end of the pre-buried steel pipe passes through the front support plate 3, and the other end passes through the anchor plate 11 and the rear support plate 4, and a bolt anchor plate 10 is provided in the side plate support plate 2. Anchor blocks and anchor steel bars 9 are provided in the casting formwork structure.
[0040] like Figure 7 As shown, the cover plate template 5 in the present invention is a rectangular block, and one end of the rectangular block is grooved inward along the edge to form a pouring port.
[0041] like Figure 8As shown, the utility model is a self-compacting concrete casting template structure suitable for the anchor end in the external prestressed reinforcement of the T-beam. The bottom plate template 1, the cover plate template 5, the front support plate 3, the rear support plate 4 and the side plate support plate 2 are adjusted according to the size of the T-beam structure 8. The bottom plate template 1, the front support plate 3, the rear support plate 4, and the part in contact with the side plate support plate 2 are pasted with high-viscosity foam. The connection between each template plate, the connection between the front support plate and the embedded steel pipe, the connection between the rear support plate and the anchor plate, and the connection between the side plate support plate and the bolt anchor plate are all filled with polyurethane foam caulking agent. The bottom plate template 1, the cover plate template 5, the front support plate 3, the rear support plate 4, the side plate support plate 2, and the first bottom plate reinforcement beam 102, the second bottom plate reinforcement beam 103, the first side plate reinforcement beam 202, the second side plate reinforcement beam 203, and the third side plate reinforcement beam 204 are all wooden structures.
[0042] The supporting steel bars, bottom plate formwork and anchor block anchor bars are fastened by galvanized anti-rust iron wire; the supporting steel bars, front support plate and anchor block anchor bars are fastened by galvanized anti-rust iron wire; the supporting steel bars, rear support plate and anchor block anchor bars are fastened by galvanized anti-rust iron wire; the reinforcing steel bars, side plate support plate and anchor block anchor bars are fastened by galvanized anti-rust iron wire.
[0043] In one embodiment, one T-beam structure is configured with four casting formwork structures.
[0044] Taking a 20mT beam as an example, the specific implementation method of the anchor end self-compacting concrete pouring formwork structure is as follows:
[0045] S1: Drilling holes at the edge of the anchorage area of the T-beam structure
[0046] Use an electric hammer or pneumatic drill to drill holes at the corresponding positions on the edge of the anchoring area. Drill 4 holes at the bottom and 2 holes at the corresponding positions on the edges of the front and rear support plates. The drilling depth should not be less than 15 cm and the hole diameter should be slightly larger than the steel bar diameter.
[0047] S2: Hole cleaning and reinforcement planting
[0048] After drilling, check the hole depth and diameter and blow out the dust in the hole with compressed air, then clean the hole wall with a brush or cotton cloth, and blow the hole with compressed air again. Repeat this process 3 to 5 times until there is no dust or debris in the hole, wipe the hole wall with cotton cloth dipped in acetone, and finally hammer the supporting steel bars in with a hammer or other tools. To ensure that the reinforcing steel bars can be used repeatedly, the supporting steel bars inserted into the drilled holes do not need to be coated with anchor glue.
[0049] S3: Template Installation
[0050] Install in the order of bottom plate template → first bottom plate reinforcement beam → second bottom plate reinforcement beam → front support plate → rear support plate → side plate support plate → first side plate reinforcement beam → second side plate reinforcement beam → third side plate reinforcement beam → cover plate template.
[0051] Use cement nails to fix the bottom plate template to the first bottom plate reinforcement beam and the second bottom plate reinforcement beam. The second bottom plate reinforcement beam slightly extends out of the bottom plate template along the longitudinal direction of the T-beam structure, with a length of 3 to 5 cm. Place the first bottom plate reinforcement beam and the second bottom plate reinforcement beam on the supporting steel bars. Use an electric drill to drill holes at the contact point between the supporting steel bars and the bottom plate. The diameter of the holes is slightly larger than the diameter of the galvanized anti-rust wire. Use galvanized anti-rust wire to fasten the supporting steel bars, the bottom plate template, and the anchoring steel bars of the anchor block.
[0052] Use an electric drill to drill holes at the contact point between the front support plate and the side support steel bars. The diameter of the holes should be slightly larger than the diameter of the galvanized anti-rust iron wire. Use the galvanized anti-rust iron wire to fasten the support steel bars, the front support plate, and the anchor block anchor steel bars.
[0053] Use an electric drill to drill holes at the contact point between the rear support plate and the side support steel bars. The diameter of the holes should be slightly larger than the diameter of the galvanized anti-rust iron wire. Use the galvanized anti-rust iron wire to fasten the support steel bars, the rear support plate, and the anchor block anchor steel bars.
[0054] High-viscosity foam is pasted on the parts where the bottom plate template, the front support plate, the rear support plate and the side plate support plate are in contact.
[0055] Use cement nails to fix the side panel support plate to the first side panel reinforcement beam, the second side panel reinforcement beam, and the third side panel reinforcement beam. Use an electric drill to drill holes in the side panel support plate in the vertical direction of the corresponding position of the support steel bar. The diameter of the drilled hole is slightly larger than the diameter of the galvanized anti-rust iron wire. Use galvanized anti-rust iron wire to fasten the reinforcement steel bar, the side panel support plate, and the anchor block anchor steel bar. Among them, the reinforcement steel bar is placed on the first side panel reinforcement beam, the second side panel reinforcement beam, and the third side panel reinforcement beam.
[0056] Install the cover formwork and fix the cover formwork to its contact formwork with cement nails.
[0057] S4: Contact gap filling
[0058] The joints between each formwork panel, the joints between the front support plate and the embedded steel pipe, the joints between the rear support plate and the anchor plate, and the joints between the side plate support plate and the bolt anchor plate are filled with polyurethane foam filler.
[0059] S5: Self-compacting concrete pouring
[0060] After the formwork is installed, prepare the self-compacting concrete according to the mix ratio and pour it.
[0061] S6: Demolding and surface treatment
[0062] When the strength of the anchor block self-compacting concrete reaches the design requirements, the formwork is removed and cured. When removing the formwork, first untie the galvanized anti-rust wire, and then pull out the supporting steel bars from the T-beam structure after the formwork is removed. The formwork and supporting steel bars can be reused. Use epoxy mortar to fill the drilled holes on the T-beam structure.
[0063] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.
Claims
1. A self-compacting concrete casting formwork structure suitable for the anchor end in the external prestressed reinforcement of T-beams, characterized in that: The invention comprises two casting formwork structures respectively located on both sides of a T-beam structure (8), and one side surface of the two casting formwork structures is symmetrically arranged to fit the T-beam structure (8); the two casting formwork structures are respectively formed by interconnecting a bottom plate formwork (1), a cover plate formwork (5), a front support plate (3), a rear support plate (4) and a side plate support plate (2); a reinforcing steel bar (7) is also arranged behind the side plate support plate (2), the bottom plate formwork (1) is placed on the supporting steel bar (6), and one end of the supporting steel bar (6) is inserted into the T-beam structure (8); and supporting steel bars (6) inserted into the T-beam structure (8) are respectively arranged behind the front support plate (3) and the rear support plate (4).
2. The self-compacting concrete casting template structure for the anchor end in the external prestressed reinforcement of T-beams according to claim 1 is characterized in that: The base plate formwork (1) comprises a base plate (101), a first base plate reinforcing cross beam (102) and a second base plate reinforcing cross beam (103) which are fixed to each other. The first base plate reinforcing cross beam (102) and the second base plate reinforcing cross beam (103) are arranged below the base plate (101) and extend out of the base plate (101) along the longitudinal direction of the T-beam structure (8).
3. The self-compacting concrete casting template structure for the anchor end in the external prestressed reinforcement of T-beams according to claim 1 or 2, characterized in that: The side panel support plate (2) comprises a side panel (201), a first side panel reinforcement beam (202), a second side panel reinforcement beam (203) and a third side panel reinforcement beam (204) which are connected to each other; the first side panel reinforcement beam (202), the second side panel reinforcement beam (203) and the third side panel reinforcement beam (204) are arranged on the back side of the side panel (201) and are arranged longitudinally along the T-beam structure (8); and reinforcing steel bars (7) are also arranged on the first side panel reinforcement beam (202), the second side panel reinforcement beam (203) and the third side panel reinforcement beam (204).
4. The self-compacting concrete casting template structure for the anchor end in the external prestressed reinforcement of T-beams according to claim 1 is characterized in that: The front support plate (3), the rear support plate (4) and the side support plate (2) are provided with holes in the middle positions; the front support plate (3) has a circular hole shape, the rear support plate (4) has a rectangular hole shape, and the side support plate (2) has a rectangular hole shape; an anchor plate (11) is provided in the rear support plate (4); embedded steel pipes pass through the holes of the front support plate (3) and the rear support plate (4); a bolt anchor plate (10) is provided in the side support plate (2); and an anchor block anchor steel bar (9) is provided in the casting formwork structure.
5. The self-compacting concrete casting template structure for the anchor end in the external prestressed reinforcement of T-beams according to claim 1 or 4, characterized in that: The bottom plate template (1), the front support plate (3), the rear support plate (4), and the side plate support plate (2) are bonded together at their contacting locations by means of high-viscosity foam.
6. The self-compacting concrete casting template structure for the anchor end in the external prestressed reinforcement of T-beams according to claim 5 is characterized in that: The supporting steel bars (6), the bottom plate formwork (1), and the anchor block anchor steel bars (9) are fastened by galvanized anti-rust iron wire; the supporting steel bars (6), the front supporting plate (3), and the anchor block anchor steel bars (9) are fastened by galvanized anti-rust iron wire; the supporting steel bars (6), the rear supporting plate (4), and the anchor block anchor steel bars (9) are fastened by galvanized anti-rust iron wire; and the reinforcing steel bars (7), the side plate supporting plate (2), and the anchor block anchor steel bars (9) are fastened by galvanized anti-rust iron wire.
7. The self-compacting concrete casting template structure for anchoring ends in external prestressed reinforcement of T-beams according to claim 1 is characterized in that: The base plate template (1), cover plate template (5), front support plate (3), rear support plate (4), side plate support plate (2), first base plate reinforcement beam (102), second base plate reinforcement beam (103), first side plate reinforcement beam (202), second side plate reinforcement beam (203), and third side plate reinforcement beam (204) are all wooden structures.
8. The self-compacting concrete pouring template structure for anchoring ends in external prestressed reinforcement of T-beams according to claim 4 is characterized in that: The joints of the template panels, the joints of the front support plate (3) and the embedded steel pipe, the joints of the rear support plate (4) and the anchor plate (11), and the joints of the side plate support plate (2) and the bolt anchor plate (10) are all filled with polyurethane foam sealant.
9. The self-compacting concrete casting template structure for the anchor end in the external prestressed reinforcement of T-beams according to claim 1 is characterized in that: One T-beam structure is equipped with four casting formwork structures.
10. The self-compacting concrete pouring template structure for anchoring ends in external prestressed reinforcement of T-beams according to claim 1, characterized in that: The cover plate template (5) is provided with a pouring port.