A precast component with wet joint of precast T-beam that does not require formwork removal

Abstract

This utility model provides a precast component for wet joints of precast T-beams that does not require formwork removal, comprising a first precast component and a second precast component, which are staggered along the wet joint of the precast T-beam. The advantages of this utility model are that by using the first and second precast components directly as bottom formwork installed at the bottom of the wet joint, it saves on the installation and use of formwork, eliminating the need for formwork removal. The structure is simple, operation is convenient, and construction progress is accelerated. The first and second precast components and the precast T-beam can be interlocked and assembled without the need for joint sealant, ensuring the appearance quality of the concrete after the wet joint is completed and reducing safety hazards.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and in particular relates to a precast component for wet joints of precast T-beams that does not require demolding. Background Technology

[0002] Traditional precast T-beam wet joint construction uses a formwork hoisting method. After the wet joint is poured and reaches the required demolding strength, the bottom formwork is removed. This method requires leaving holes for rebar tie rods during formwork installation to prevent loosening during pouring. These holes must be sealed after formwork removal. After the bottom formwork is installed, the gaps between the formwork panels and between the formwork and the T-beam concrete structure must be filled to prevent concrete slurry loss and defects in the wet joint's appearance. The filler material must be cleaned after formwork removal, posing a risk of workers falling from heights. Furthermore, there is a risk of injury from falling formwork during formwork removal. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a precast component for wet joints of precast T-beams that does not require formwork removal, which effectively solves the technical problem that the construction steps of wet joints of precast T-beams using formwork are cumbersome and pose safety hazards, and overcomes the shortcomings of the prior art.

[0004] The technical solution adopted by this utility model is: a precast component for wet joints of precast T-beams that does not require demolding, comprising a first precast component and a second precast component, wherein the first precast component and the second precast component are staggered along the wet joints of the precast T-beams.

[0005] Furthermore, both the first precast component and the second precast component include a base, which engages with the precast T-beam.

[0006] Furthermore, the base has first slots on both sides near the precast T-beam, and the first slots engage with the precast T-beam.

[0007] Furthermore, the base has second slots on its other two sides, which allow the first prefabricated component and the second prefabricated component to engage with each other.

[0008] Furthermore, the base is provided with a steel mesh.

[0009] Furthermore, the base is provided with anchoring steel bars for connecting the reserved steel bars of the precast T-beam.

[0010] Furthermore, the anchoring steel bars are spaced apart along the length of the wet joint.

[0011] The advantages and positive effects of this utility model are as follows: By adopting the above technical solution, the first precast component and the second precast component are directly installed as the bottom formwork at the bottom of the wet joint, saving the installation and use of the formwork. There is no need to remove the formwork. The structure is simple, the operation is convenient, and the construction progress is accelerated. The first precast component, the second precast component and the precast T-beam can be interlocked and assembled without the need to use grouting material to seal the gaps, which ensures the appearance quality of the concrete after the wet joint is completed and reduces safety hazards. Attached Figure Description

[0012] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0013] Figure 1 This is a schematic diagram of the splicing of a precast component and a precast T-beam for a wet joint without demolding, according to an embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the anchoring steel bar connection between the precast component and the precast T-beam in a wet joint of a precast T-beam that does not require demolding, according to an embodiment of this utility model.

[0015] Figure 3 This is a structural diagram of the first precast component of a precast T-beam wet joint without formwork removal, according to an embodiment of this utility model.

[0016] Figure 4 This is a structural diagram of the second precast component of a precast T-beam wet joint without demolding, according to an embodiment of this utility model.

[0017] Figure 5 This is a schematic diagram of the splicing of the first and second precast components of a precast T-beam wet joint without formwork removal, according to an embodiment of this utility model.

[0018] Figure 6 This is a top view of a precast component of a precast T-beam wet joint that does not require demolding, according to an embodiment of this utility model.

[0019] Figure 7 This is a cross-sectional view of a precast component of a precast T-beam wet joint that does not require demolding, according to an embodiment of this utility model.

[0020] In the picture:

[0021] 1. First precast component; 2. Second precast component; 3. Precast T-beam.

[0022] 4. Base; 5. First slot; 6. Second slot

[0023] 7. Reinforcing mesh 8. Anchoring reinforcement 9. Reserved reinforcement Detailed Implementation

[0024] This utility model provides a prefabricated component for wet joints of prefabricated T-beams that does not require demolding. The embodiments of this utility model are described below with reference to the accompanying drawings.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "top," "bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model through specific circumstances.

[0026] like Figure 1 and Figure 2 As shown in the figure, this utility model provides a precast component for a precast T-beam wet joint that does not require formwork removal. It includes a first precast component 1 and a second precast component 2, which are staggered along the wet joint of the precast T-beam 3. The first precast component 1 and the second precast component 2 are made of concrete with a grade greater than or equal to that of the precast T-beam 3 and are spliced ​​with it. The first precast component 1 and the second precast component 2 are directly installed at the bottom of the wet joint as a bottom formwork, with a width consistent with the width of the wet joint, eliminating the need for a separate template. The lengths of the first precast component 1 and the second precast component 2 are selected according to the length of the wet joint. Multiple first precast components 1 and second precast components 2 are staggered and spliced ​​along the wet joint.

[0027] Specifically, such as Figure 3 , Figure 4 and Figure 5 Both the first precast component 1 and the second precast component 2 include a base 4, which engages with the precast T-beam 3. The bases 4 of the first precast component 1 and the second precast component 2 are staggered and spliced ​​at the bottom of the wet joint, and spliced ​​with the precast T-beam 3, so that the bases 4 of the first precast component 1 and the second precast component 2 are directly used as the bottom formwork of the wet joint.

[0028] Preferred, such as Figure 2As shown, to prevent gaps when the base 4 is spliced ​​with the precast T-beam 3, the base 4 has first slots 5 on both sides near the precast T-beam 3. The first slots 5 are set along the length of the base 4 and engage with the precast T-beam 3. The first slots 5 are stepped slots, and stepped slots are also opened at the relative positions of the precast T-beam 3 to fit and engage with the first slots 5. By setting the first slots 5, the bases 4 of the first precast component 1 and the second precast component 2 engage with the precast T-beam 3, positioning the first precast component 1 and the second precast component 2 for easy installation. It also ensures that the bottom of the base 4 is flush with the bottom of the wet joint, avoiding gaps when the base 4 is spliced ​​with the precast T-beam 3, which would require sealing with caulking material and affect the appearance quality.

[0029] Preferred, such as Figure 3 , Figure 4 and Figure 5 As shown, to prevent gaps between the bases 4 when the first precast component 1 and the second precast component 2 are spliced, second slots 6 are provided on the other two sides of the bases 4. The bases 4 of adjacent first precast components 1 and second precast components 2 are engaged through the second slots 6. The second slots 6 are stepped slots. The second slots 6 on the bases 4 of adjacent first precast components 1 and second precast components 2 are adapted to engage with each other. By setting the second slots 6, the bases 4 of adjacent first precast components 1 and second precast components 2 are engaged and spliced ​​together, which positions the splicing of the first precast components 1 and second precast components 2, facilitates installation, and makes the bases 4 of adjacent first precast components 1 and second precast components 2 flush when engaged, avoiding gaps when splicing the first precast components 1 and second precast components 2, which would require the use of caulking material to seal the gaps and affect the appearance quality.

[0030] Preferred, such as Figure 6 and Figure 7 As shown, to ensure the structural strength of the base 4, a steel mesh 7 is fixed inside the base 4. The steel mesh 7 is pre-embedded during the prefabrication of the base 4.

[0031] Specifically, such as Figure 2 As shown, anchoring steel bars 8 are provided on the base 4. The anchoring steel bars 8 are pre-embedded together with the reinforcing mesh 7 during the prefabrication of the base 4. The anchoring steel bars 8 are vertically installed on the base 4, spaced along the length of the wet joint. The bottom of the anchoring steel bars 8 is connected to the reinforcing mesh 7, and the top is bent to interlock and fix with the annular reserved reinforcing bars 9 of the wet joint of the prefabricated T-beam 3. To ensure the anchoring effect, multiple rows of anchoring steel bars 8 can be installed along the length of the wet joint and connected to the reserved reinforcing bars 9 of the prefabricated T-beam 3.

[0032] A construction method for precast components using the precast T-beam wet joint without formwork removal as described above includes the following steps:

[0033] S1: Prefabricate the first prefabricated component 1 and the second prefabricated component 2;

[0034] The widths of the first precast component 1 and the second precast component 2 are determined based on the width of the wet joint. The lengths of the first precast component 1 and the second precast component 2 are reasonably selected based on the length of the wet joint, typically set to 2.5m. During prefabrication, a steel mesh 7 needs to be inserted and anchor steel bars 8 pre-embedded. When fabricating the first precast component 1 and the second precast component 2, ensure that the first groove 5 and the second groove 6 are reserved. During concrete pouring, pay attention to vibration. The concrete grade of the first precast component 1 and the second precast component 2 should be greater than or equal to the concrete grade of the precast T-beam 3. Finishing is performed before initial setting, and finally, the upper surface of the precast component, which is the contact surface with the wet joint concrete, is roughened to strengthen the bond with the wet joint concrete.

[0035] The first precast component 1 and the second precast component 2 need to be precast one month before the construction of the wet joint. They must meet the 28-day strength requirement of concrete before use. After precasting, they should be covered and cured in a timely manner. During the precasting process of the precast T-beam 3, attention should be paid to leaving a stepped groove that matches the base 4.

[0036] S2: The first precast component 1 and the second precast component 2 are staggered in the wet joint of the precast T-beam 3;

[0037] During the construction of the wet joint, the first precast component 1 and the second precast component 2 are alternately placed directly below the wet joint. Four lifting ropes are passed through the wet joint from top to bottom and connected to the anchoring steel bars 8 at the four corners of the precast component. The construction workers above the wet joint work together to slowly lift the precast component until the base 4 contacts the precast T-beam 3 and the first groove 5 engages with the stepped groove on the precast T-beam 3. After the base 4 engages with the precast T-beam 3, the anchoring steel bars 8 are adjusted so that they are interlocked and welded to the annular pre-reserved steel bars 9 of the wet joint of the precast T-beam 3.

[0038] During the hoisting process, attention should be paid to the staggered lifting and fixing of the first precast component 1 and the second precast component 2, and the adjacent first precast component 1 and the second precast component 2 should be interlocked and spliced ​​with each other using the second slot 6.

[0039] S3: Wet joint concrete pouring;

[0040] After all the first precast components 1 and the second precast components 2 are installed according to the above steps, the wet joint reinforcement is installed, and finally the wet joint concrete is poured.

[0041] The advantages and positive effects of this utility model are:

[0042] 1. Instead of bottom formwork, the first and second precast components are directly installed as bottom formwork at the bottom of the wet joint, saving the installation and use of formwork. There is no need to remove the formwork. The structure is simple, the operation is convenient, and the construction progress is accelerated.

[0043] 2. By setting the first slot and the second slot, the first precast component, the second precast component and the precast T-beam can be interlocked and assembled without the need for joint sealant, thus ensuring the appearance quality of the concrete after the wet joint is completed.

[0044] 3. It reduces the risk of construction workers and formwork falling from heights, thus lowering safety hazards.

[0045] The embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and have not been described in detail. Furthermore, the definitions of the various components described above are not limited to the specific structures, shapes, or methods mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0046] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A precast component for a precast T-beam wet joint form removal free form, characterized by: The device includes a first precast component and a second precast component, which are staggered along the wet joint of the precast T-beam. Both the first and second precast components include a base, which engages with the precast T-beam. The base has a first slot on both sides near the precast T-beam, which engages with the precast T-beam.

2. The precast component of a precast T-beam wet-joint formwork system according to claim 1, wherein: The base has second slots on its other two sides, which allow the first prefabricated component and the second prefabricated component to engage with each other.

3. A precast component with a wet joint of a precast T-beam that does not require demolding, as described in claim 1 or 2, characterized in that: The base is equipped with a steel mesh.

4. The precast component of a precast T-beam wet joint formwork according to claim 1 or 2, characterized in that: The base is provided with anchoring steel bars for connecting the reserved steel bars of the precast T-beam.

5. A precast component for a precast T-beam wet-joint formwork assembly according to claim 4, wherein: The anchoring steel bars are spaced apart along the length of the wet joint.

Images