Armor seam special for post-tensioned prestressed terrace

Abstract

The armor seam special for the post-tensioned prestressed terrace comprises a left steel plate and a right steel plate, a left wave-shaped matching part is arranged at the right end of the left steel plate, a right wave-shaped matching part is arranged at the left end of the right steel plate, the left wave-shaped matching part and the right wave-shaped matching part are matched with each other, a left bottom plate is connected to the bottom face of the left steel plate, a left embedded plate is formed at the left end of the left bottom plate, and a right embedded plate is formed at the right end of the right steel plate. A left vertical plate extending downwards is formed at the right end of the left bottom plate, a right bottom plate is connected to the bottom face of the right steel plate, a right embedded plate is formed at the right end of the right bottom plate, a right vertical plate is formed at the left end of the right bottom plate, and the left vertical plate and the right vertical plate are connected through a plurality of plastic bolts arranged front and back. When the floor is poured, the armor seam is installed between the two adjacent branch bins, the armor seam can be stretched in the solidification and drying process of concrete, in this way, cracks of the floor are avoided, the left embedded plate and the right embedded plate can be poured into the concrete, and the fragile concrete plate edge at the expansion joint of the concrete floor is protected.

Description

Technical Field

[0001] This utility model relates to the field of construction, specifically to a special armor joint for post-tensioned prestressed concrete flooring. Background Technology

[0002] During the concrete pouring process of traditional flooring, the concrete shrinks due to moisture loss during hydration heat. This causes the concrete slabs to pull against each other. Combined with uneven settlement of the foundation, as the flooring is used for a long time, the edges of the flooring are prone to warping, chipping, breakage, and misalignment, which inevitably leads to cracks in the flooring.

[0003] Prestressed seamless flooring, through the active application of prestress, keeps the concrete slab under normal compressive stress, reducing or eliminating shrinkage cracks and improving crack resistance. It enables seamless flooring over large areas (up to 7000 square meters per section).

[0004] Traditional floor armor joints cannot meet the construction requirements of prestressed seamless flooring, such as anchor installation, dowel bar setting, and formwork replacement. They also cannot ensure that the edges of the prestressed floor slab will not chip when subjected to large loads. Utility Model Content

[0005] This utility model provides a special armor joint for post-tensioned prestressed concrete flooring, the main purpose of which is to overcome the problems of edge warping and cracking of existing concrete flooring caused by traditional construction methods.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The special armor joint for post-tensioned prestressed concrete includes a left steel plate and a right steel plate. The right end of the left steel plate has a left wavy fitting part, and the left end of the right steel plate has a right wavy fitting part. The left and right wavy fitting parts fit together. The bottom surface of the left steel plate is connected to a left base plate. The left end of the left base plate forms a left embedded plate, and the right end of the left base plate forms a downward-extending left vertical plate. The bottom surface of the right steel plate is connected to a right base plate. The right end of the right base plate forms a right embedded plate, and the left end of the right base plate forms a right vertical plate. The left and right vertical plates are connected by multiple plastic bolts arranged front and back.

[0008] Furthermore, the height of the left vertical plate is greater than the height of the right vertical plate, and the bottom of the left vertical plate has a bent portion with a flat bottom surface.

[0009] Furthermore, the left vertical plate is provided with a plurality of force transmission rod holes arranged front to back and through to the left and right, and the left end face of the left vertical plate is provided with a plurality of force transmission rod sleeves arranged front to back and through to the left and right, each force transmission rod hole corresponding to a force transmission rod sleeve, and the force transmission rod hole and the force transmission rod sleeve are connected.

[0010] Furthermore, the left embedded plate is provided with a plurality of left through holes arranged in a front-to-back manner, and the right embedded plate is provided with a plurality of right through holes arranged in a front-to-back manner.

[0011] Furthermore, the left steel plate and the left base plate are connected by multiple left bolts arranged front to back, and the bottom of the multiple left bolts is locked by left nuts. After the left bolts and left nuts are locked, they are welded to the left base plate. The right steel plate and the right base plate are connected by multiple right bolts arranged front to back, and the bottom of the multiple right bolts is locked by right nuts. After the right bolts and right nuts are locked, they are welded to the right base plate.

[0012] Furthermore, both the left and right embedded plates are inclined.

[0013] Furthermore, the left embedded plate, the left bottom plate, and the left vertical plate are integrally formed, and the right embedded plate, the right bottom plate, and the right vertical plate are integrally formed.

[0014] Furthermore, the left vertical plate is provided with multiple mounting holes that extend from left to right and are arranged front to back.

[0015] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following advantages:

[0016] 1. During the pouring of the floor, the armor joints are installed between two adjacent sections. Each section can be divided by the armor joints, which do not need to be removed after the floor is poured. Moreover, the flatness of the floor is guaranteed after it is formed. The sections of the floor are connected to each other by the armor joints. During the curing and drying process of the concrete, the armor joints will be stretched, thus preventing the floor from cracking. The left and right embedded plates can be poured into the concrete to protect the fragile concrete slab edges at the expansion joints of the concrete floor.

[0017] 2. This utility model also features a specially designed force transmission rod hole and a force transmission rod sleeve, through which the force transmission rod passes, resulting in more uniform and efficient force transmission. The left embedded plate, left bottom plate, and left vertical plate are integrally formed, as are the right embedded plate, right bottom plate, and right vertical plate. This not only simplifies the installation process but also significantly improves the durability and performance of the device. This utility model effectively solves common problems in traditional floor construction, such as cracks and edge damage, providing a reliable guarantee for post-tensioned prestressed concrete floor construction and is suitable for various construction environments. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present invention.

[0019] Figure 2 This is a structural diagram of the present invention from another angle.

[0020] Figure 3 This is a structural diagram of the present invention from another angle.

[0021] Figure 4 This is an exploded view of the structure of the left and right steel plates of this utility model. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to 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.

[0023] Reference Figure 1 , Figure 2 and Figure 4 The special armor joint for post-tensioned prestressed concrete includes a left steel plate 1 and a right steel plate 2. The right end of the left steel plate 1 has a left wavy fitting part 11, and the left end of the right steel plate 2 has a right wavy fitting part 21. The left wavy fitting part 11 and the right wavy fitting part 21 fit together. The bottom surface of the left steel plate 1 is connected to a left bottom plate 3. The left end of the left bottom plate 3 forms a left embedded plate 4, and the right end of the left bottom plate 3 forms a downwardly extending left vertical plate 5. The bottom surface of the right steel plate 2 is connected to a right bottom plate 6. The right end of the right bottom plate 6 forms a right embedded plate 7, and the left end of the right bottom plate 6 forms a right vertical plate 8. The left vertical plate 5 and the right vertical plate 8 are connected by a plurality of plastic bolts 9 arranged front and rear. The plastic bolts 9 are locked by nuts 91. When the concrete is stretched under force, the plastic bolts 9 can automatically break open. The number of plastic bolts 9 can be set as needed.

[0024] Reference Figure 1 and Figure 2The height of the left vertical plate 5 is greater than the height of the right vertical plate 8. The bottom of the left vertical plate 5 has a bent portion 51 with a flat bottom surface. The height of the left vertical plate 5 is designed to reduce the height of the concrete formwork. The bent portion 51 is used to contact the concrete formwork. The left vertical plate 5 has multiple force transmission rod holes 52 arranged front-to-back and extending left-to-right. The left end face of the left vertical plate 5 has multiple force transmission rod sleeves 53 arranged front-to-back and extending left-to-right. Each force transmission rod hole 52 corresponds to one force transmission rod sleeve 53. The force transmission rod holes 52 and force transmission rod sleeves 53 are connected. The number of force transmission rod holes 52 and force transmission rod sleeves 53 can be set as needed. In the attached drawings, three force transmission rod holes 52 and three force transmission rod sleeves 53 are shown. The dowel bar hole 52 and dowel bar sleeve 53 allow the dowel bar to pass through. The dowel bar's function is to transfer the traffic load between two concrete blocks and prevent misalignment, increasing stress transfer between adjacent concrete blocks to prevent uneven settlement of the concrete slab. Using a dowel bar to transfer stress allows adjacent concrete slabs to share the load. The left vertical plate 5 has multiple mounting holes 54 that are horizontally and vertically arranged. These mounting holes 54 facilitate the placement of prestressed tensioning anchors. The number of mounting holes 54 can be set as needed; in the attached drawings, only two mounting holes 54 are shown.

[0025] Reference Figure 1 and Figure 2 The left embedded plate 4 has multiple left through holes 41 arranged front to back, and the right embedded plate 7 has multiple right through holes 71 arranged front to back. Both the left and right embedded plates 4 and 7 are inclined and embedded in concrete. The left and right through holes 41 and 71 allow concrete to flow through during pouring, increasing the bond between the concrete and the left and right embedded plates 4 and 7 after the concrete has solidified. In this embodiment, the left embedded plate 4, left bottom plate 3, and left vertical plate 5 are integrally formed and made of steel, as are the right embedded plate 7, right bottom plate 6, and right vertical plate 8.

[0026] Reference Figure 1 and Figure 3The left steel plate 1 and the left base plate 3 are connected by multiple left bolts 10 arranged front to back. The bottom of the multiple left bolts 10 is locked by left nuts 12. The number of left bolts 10 can be set as needed. In the attached drawing, only four left bolts 10 are shown. After the left bolts 10 and left nuts 12 are locked, they are welded to the left base plate 3 to increase the connection tightness between the left steel plate 1 and the left base plate 3. The right steel plate 2 and the right base plate 6 are connected by multiple right bolts 13 arranged front to back. The bottom of the multiple right bolts 13 is locked by right nuts 14. The number of right bolts 13 can be set as needed. In the attached drawing, only four right bolts 13 are shown. After the right bolts 13 and right nuts 14 are locked, they are welded to the right base plate 6 to increase the connection tightness between the right steel plate 2 and the right base plate 6.

[0027] Reference Figure 1 and Figure 2 The design principle of this utility model is as follows: When the floor is poured, the armor joint is installed between two adjacent compartments. Each compartment can be divided by the armor joint. It does not need to be removed after the floor is poured. Moreover, the flatness of the floor can be guaranteed after the floor is formed. The compartments of the floor are connected to each other by the armor joint. At this time, the armor joint will stretch during the process of concrete setting and drying, thus avoiding the generation of floor cracks. The left embedded plate 4 and the right embedded plate 7 can be poured into the concrete to protect the fragile concrete slab edges at the expansion joints of the concrete floor.

[0028] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A post-tensioned armor joint for use in a pre-stressed floor, comprising a left steel plate and a right steel plate, characterized in that: The right end of the left steel plate is provided with a left wavy fitting part, the left end of the right steel plate is provided with a right wavy fitting part, and the left wavy fitting part and the right wavy fitting part are fitted with each other; the bottom surface of the left steel plate is connected with a left bottom plate, the left end of the left bottom plate is formed with a left embedded plate, and the right end of the left bottom plate is formed with a left vertical plate extending downward; the bottom surface of the right steel plate is connected with a right bottom plate, the right end of the right bottom plate is formed with a right embedded plate, and the left end of the right bottom plate is formed with a right vertical plate, and the left vertical plate and the right vertical plate are connected through a plurality of plastic bolts arranged front and back.

2. The post-tensioned, pre-stressed mat joint of claim 1, wherein: The height of the left vertical plate is greater than the height of the right vertical plate, and the bottom of the left vertical plate is formed with a bending part with a flat bottom surface.

3. The post-tensioned, pre-stressed mat joint of claim 2, wherein: The left vertical plate is provided with a plurality of force transmission rod holes arranged front and back and penetrating left and right, and the left end surface of the left vertical plate is provided with a plurality of force transmission rod sleeves arranged front and back and penetrating left and right, each force transmission rod hole corresponding to one force transmission rod sleeve, and the force transmission rod hole and the force transmission rod sleeve being in communication.

4. The post-tensioned, pre-stressed mat joint of claim 1, wherein: The left embedded plate is provided with a plurality of left through holes arranged front and back, and the right embedded plate is provided with a plurality of right through holes arranged front and back.

5. The post-tensioned, pre-stressed mat jacket joint of claim 1, wherein: The left steel plate and the left bottom plate are connected through a plurality of left bolts arranged front and back, the bottom of the plurality of left bolts is locked through a left nut, and the left bolt and the left nut are welded with the left bottom plate after being locked; the right steel plate and the right bottom plate are connected through a plurality of right bolts arranged front and back, the bottom of the plurality of right bolts is locked through a right nut, and the right bolt and the right nut are welded with the right bottom plate after being locked.

6. The post-tensioned, pre-stressed mat jacket joint of claim 1, wherein: The left embedded plate and the right embedded plate are both arranged obliquely.

7. The post-tensioned, pre-stressed mat jacket joint of claim 1, wherein: The left embedded plate, the left bottom plate and the left vertical plate are integrally formed, and the right embedded plate, the right bottom plate and the right vertical plate are integrally formed.

8. The post-tensioned, pre-stressed mat jacket joint of claim 1, wherein: The left vertical plate is provided with a plurality of mounting holes penetrating left and right and arranged front and back.

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