A construction device for underfloor turning beam in soft ground

Abstract

The application discloses a kind of for weak stratum under floorboard under construction device of beam, comprising, first plate and second plate, both opposite setting, and butt joint form U type structure;Linear threaded steel, parallel coplanar uniformly arranged on the surface of first plate and second plate, and surface is provided with slot;U type threaded steel, between first plate and second plate, and each edge of each U type threaded steel is sequentially connected with the slot on each linear threaded steel arranged on the surface of first plate and second plate, the U type threaded steel is perpendicular to linear threaded steel connection;In the application, not only in weak stratum, also can be in all stratum construction, practicality is strong, and application range is wide;Effectively save the amount of concrete, shorten the construction period of main structure;Construction efficiency is high, construction is simple, device assembly is convenient, greatly improve construction efficiency;Manufacture processing is simple, material cost is lower, can greatly save construction cost.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a device for constructing a bottom slab under-tilting beam in soft soil strata. Background Technology

[0002] With the rapid development of public transportation infrastructure in my country, more and more subways are operating underground in cities. As the load-bearing structure of the subway foundation slab, the rapid and high-quality construction of the underpass beams plays a crucial role in subway construction. Soft soil, a common geological type, frequently occurs in subway construction. Due to its low soil strength, the trench may lack sufficient support after excavation, potentially leading to instability and inward collapse. This could prevent the excavation from reaching the designed width, affecting subsequent construction. Generally, when the bottom of the foundation pit is relatively soft and cannot meet the requirements of the superstructure load, the replacement foundation method is often used to treat the soft soil. However, this method involves complex procedures, a long construction period, and wastes construction resources, delaying the project schedule. Summary of the Invention

[0003] The main objective of this invention is to provide a construction device for under-slab turning beams in soft strata, aiming to solve existing technical problems.

[0004] To achieve the above objectives, the present invention provides a device for constructing a bottom slab under-beam in soft strata, comprising:

[0005] The first and second plates are set opposite each other and connected to form a U-shaped structure;

[0006] Straight threaded steel bars are evenly distributed in parallel and coplanar manner on the surfaces of the first and second plates, and grooves are provided on the surfaces.

[0007] U-shaped threaded steel bars are provided between the first plate and the second plate, and each side of each U-shaped threaded steel bar is sequentially connected to a notch on each straight threaded steel bar provided on the surface of the first plate and the second plate. The U-shaped threaded steel bars are perpendicularly connected to the straight threaded steel bars.

[0008] Furthermore, the second plate has a protruding plate at the end connected to the first plate, and the first plate has a slot adapted to the protruding plate. The protruding plate is slidably inserted into the slot. The first plate has a locking bolt for fixing the protruding plate. The first plate and the second plate are connected by an adjusting plate to extend the joint length of the first plate and the second plate.

[0009] Furthermore, the convex plate is disposed on the surface of the second plate connected to the bottom, and a limiting groove is formed on the upper surface of the convex plate. The adjusting plate is provided with a protrusion that cooperates with the limiting groove. A first threaded rod is embedded in the inner cavity of the second plate. The first threaded rod is threaded through the second plate and the convex plate and extends into the limiting groove. A second threaded rod is embedded in the inner cavity of the first plate. The adjusting plate is fixed by the first threaded rod and the second threaded rod.

[0010] Furthermore, a connecting groove is provided on the surface of the connecting end of the first plate and the second plate, and protrusions adapted to the connecting groove are provided at both ends of the adjusting plate.

[0011] Furthermore, the second plate includes a first support plate and a second support plate. One end of the second support plate is slidably connected to the first support plate. The bottom of the first support plate is provided with a horizontally arranged connecting rod. The connecting rod spans the bottom of the first plate and is connected to a baffle. The baffle is attached to the outer surface of the first plate and is slidably connected to it. The connecting rod is a telescopic structure.

[0012] Furthermore, the second plate has an extension plate at the top and a connecting rod at the bottom. The second plate has a rod groove adapted to the connecting rod. The extension plate and the second plate are connected by slots. The separated extension plate and the second plate are connected by a side baffle. The side baffle has an integrally formed protrusion that connects to the slots at each position.

[0013] Furthermore, the side baffle is composed of two splicing plates with the same structure. The spliced ​​side baffle has a through hole in the middle for the connecting rod to pass through, and each splicing plate has a protrusion at each of its four corners that is connected to the corresponding slot on its side.

[0014] Furthermore, the two outermost U-shaped threaded steel bars are connected at both ends by reinforcing steel bars, and the two ends of the reinforcing steel bars are welded and fixed to straight threaded steel bars of the same height.

[0015] The beneficial effects of this invention are reflected in:

[0016] This invention can be applied not only in soft strata but also in all strata, making it highly practical and widely applicable. It effectively saves on concrete usage and shortens the construction period of the main structure. It boasts high construction efficiency, simple construction methods, and convenient device assembly, greatly improving construction efficiency. It is also easy to manufacture and process, with low material costs, which can significantly reduce construction costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the structure of the present invention;

[0019] Figure 3This is a schematic diagram of the side baffle installation structure of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. First plate; 101. Second plate; 1011. First support plate; 1012. Second support plate; 102. Protruding plate; 1021. Limiting groove; 103. Adjusting plate; 1031. Protrusion; 104. Second threaded rod; 105. First threaded rod; 200. Extension plate; 201. Slot; 202. Connecting rod; 203. Side baffle; 300. Baffle; 301. Connecting rod; 400. Straight threaded steel bar; 401. U-shaped threaded steel bar. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent.

[0025] Please see Figure 1-3 The present invention provides a device for constructing a bottom slab under-beam in soft strata, comprising:

[0026] The first plate 100 and the second plate 101 are set opposite each other and connected to form a U-shaped structure;

[0027] Straight threaded steel bars 400 are evenly distributed in parallel and coplanar manner on the surfaces of the first plate 100 and the second plate 101, and grooves are provided on the surfaces.

[0028] U-shaped threaded steel bars 401 are provided between the first plate 100 and the second plate 101, and each side of each U-shaped threaded steel bar 401 is connected in sequence to the notch on each straight threaded steel bar 400 arranged on the surface of the first plate 100 and the second plate 101. The U-shaped threaded steel bars 401 are perpendicularly connected to the straight threaded steel bars 400.

[0029] This invention can be applied not only in soft strata but also in all strata, making it highly practical and widely applicable. It effectively saves on concrete usage and shortens the construction period of the main structure. It boasts high construction efficiency, simple construction methods, and convenient device assembly, greatly improving construction efficiency. It is also easy to manufacture and process, with low material costs, which can significantly reduce construction costs.

[0030] In one embodiment, the second plate 101 has a protruding plate 102 at the end connected to the first plate 100, and the first plate 100 has a slot adapted to the protruding plate 102. The protruding plate 102 is slidably inserted into the slot. The first plate 100 has a locking bolt for fixing the protruding plate 102. The first plate 100 and the second plate 101 are connected by an adjusting plate 103 to extend the assembly length of the first plate 100 and the second plate 101.

[0031] In this embodiment, the convex plate 102 can be pulled outward or pushed inward by loosening the locking bolts according to actual usage needs, so that the distance between the first plate 100 and the second plate 101 can be adjusted, thereby adapting to support foundation pits of different widths and improving the applicability of the device.

[0032] In one embodiment, a protruding plate 102 is disposed on the surface of the second plate 101 connected to the bottom, and a limiting groove 1021 is formed on the upper surface of the protruding plate 102. The adjusting plate 103 is provided with a protrusion that cooperates with the limiting groove 1021. A first threaded rod 105 is embedded in the inner cavity of the second plate 101. The first threaded rod 105 is threaded through the second plate 101 and the protruding plate 102 and extends into the limiting groove 1021. A second threaded rod 104 is embedded in the inner cavity of the first plate 100. The adjusting plate 103 is fixed by the first threaded rod 105 and the second threaded rod 104.

[0033] In this embodiment, the distance between the first plate 100 and the second plate 101 can be adjusted by replacing the adjusting plate 103 of different lengths, thereby adapting to grooves of different widths. Specifically, during replacement, the first threaded rod 105 and the second threaded rod 104 are screwed in this way, and the first plate and the second plate are pulled to both sides. The required adjusting plate 103 is then inserted, so that its protrusion is tightly connected with the limiting groove 1021. Then the first plate 100 and the second plate 101 are pulled back to realize the replacement of the adjusting plate. The operation is simple and quick, which improves the applicability of the device and also improves the work efficiency.

[0034] In one embodiment, a connecting groove is provided on the connecting end surface of the first plate 100 and the second plate 101, and the adjusting plate 103 is provided with protrusions 1031 at both ends that are adapted to the connecting groove.

[0035] In this embodiment, the protrusion 1031 is designed to improve the connection strength between the adjustment plate 103 and the first plate 100 and the second plate 101, thereby improving the overall support strength of the device.

[0036] In one embodiment, the second plate 101 includes a first support plate 1011 and a second support plate 1012. One end of the second support plate 1012 is slidably connected to the first support plate 1011. The bottom of the first support plate 1011 is provided with a horizontally arranged connecting rod 301. The connecting rod 301 spans the bottom of the first plate 100 and is connected to a baffle 300. The baffle 300 is attached to the outer surface of the first plate 100 and slidably connected to it. The connecting rod 301 is a telescopic structure.

[0037] In one embodiment, the second plate 101 has an extension plate 200 at the top and a connecting rod 202 at the bottom. The second plate 101 has a rod groove adapted to the connecting rod 202. The extension plate 200 and the second plate 101 are connected by a slot 201 at their connecting ends. The separated extension plate 200 and the second plate 101 are connected by a side baffle 203. The side baffle 203 has an integrally formed protrusion that connects to the slots 201 at each position.

[0038] In this embodiment, when encountering a deep foundation pit, the extension plate 200 is pulled upwards, and then a side baffle 203 is placed between the second support plate 1021 and the extension plate 200, so that both ends of the side baffle 203 are connected to the slots 201, thereby extending the side support portion of the device. This allows the device to support deeper foundation pits, improving its applicability. Furthermore, the side baffle 203 can be prepared in advance according to actual needs, so that during actual construction, the appropriate length of the side baffle 203 can be selected and used according to the depth of the foundation pit, quickly completing the assembly of the device and improving construction efficiency.

[0039] In one embodiment, the side baffle 203 is composed of two splicing plates with the same structure. The spliced ​​side baffle 203 has a through hole in the middle for the connecting rod 202 to pass through, and each splicing plate has a protrusion at each of its four corners that is connected to the corresponding slot 201 on its respective side.

[0040] In this embodiment, the side baffle 203 is designed to be installed without disassembling the extension plate 200. The side baffle 203 is designed as a splicing structure. When the extension plate 200 is pulled upward, the connecting rod 202 is exposed. The components of the two extension plates 200 are brought together and spliced ​​from both sides of the connecting rod 202, so that the connecting rod 202 is wrapped. Then, the two ends of the side baffle 203 are connected to the slots on the second support plate 1021 and the extension plate 200. The operation is simple and quick, improving construction efficiency.

[0041] In one embodiment, the two outermost U-shaped threaded steel bars 401 are connected at both ends by reinforcing steel bars 402, and the two ends of the reinforcing steel bars 402 are welded and fixed to straight threaded steel bars 400 of the same height.

[0042] This embodiment is designed in this way to improve the overall structural strength of the device, thereby addressing the problem of damage caused by excessive force exerted on the device by the foundation pit, improving the stability of the device, and also extending the service life of the device.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for constructing a bottom slab under-tilting beam in soft strata, characterized in that: include, The first plate (100) and the second plate (101) are set opposite to each other and are joined together to form a U-shaped structure; Straight threaded steel bars (400) are evenly distributed in parallel and coplanar manner on the surfaces of the first plate (100) and the second plate (101), and grooves are provided on the surfaces. U-shaped threaded steel bars (401) are provided between the first plate (100) and the second plate (101), and each side of each U-shaped threaded steel bar (401) is connected in sequence to the notch on each straight threaded steel bar (400) arranged on the surface of the first plate (100) and the second plate (101). The U-shaped threaded steel bars (401) are perpendicularly connected to the straight threaded steel bars (400). The second plate (101) has a protruding plate (102) at the end that connects to the first plate (100). The first plate (100) has a slot that matches the protruding plate (102). The protruding plate (102) is slidably inserted into the slot. The first plate (100) has a locking bolt for fixing the protruding plate (102). The first plate (100) and the second plate (101) are connected by an adjusting plate (103) to extend the assembly length of the first plate (100) and the second plate (101). The convex plate (102) is provided on the surface of the second plate (101) connected to the bottom, and a limiting groove (1021) is provided on the upper surface of the convex plate (102). The adjusting plate (103) is provided with a protrusion that cooperates with the limiting groove (1021). A first threaded rod (105) is embedded in the inner cavity of the second plate (101). The first threaded rod (105) is threaded through the second plate (101) and the convex plate (102) and extends into the limiting groove (1021). A second threaded rod (104) is embedded in the inner cavity of the first plate (100). The adjusting plate (103) is fixed by the first threaded rod (105) and the second threaded rod (104). The second plate (101) is provided with an extension plate (200) at the top and a connecting rod (202) at the bottom of the extension plate (200). The second plate (101) is provided with a rod groove that is adapted to the connecting rod (202). The extension plate (200) and the second plate (101) are both provided with a slot (201) at the connection end. The separated extension plate (200) and the second plate (101) are connected by a side baffle (203). The side baffle (203) is provided with an integrally formed protrusion that is connected to the slot (201) at each position. The side baffle (203) is composed of two splicing plates with the same structure. The spliced ​​side baffle (203) has a through hole in the middle for the connecting rod (202) to pass through, and each splicing plate has a protrusion at each of its four corners that is connected to the corresponding slot (201) on its respective side.

2. The construction device for under-slab tilting beams in soft strata as described in claim 1, characterized in that: The first plate (100) and the second plate (101) have a connecting groove on their connecting end surfaces, and the adjusting plate (103) has protrusions (1031) at both ends that are adapted to the connecting groove.

3. The construction device for under-slab tilting beams in soft strata as described in claim 1, characterized in that: The two outermost U-shaped threaded steel bars (401) are connected at both ends by reinforcing steel bars (402), and the two ends of the reinforcing steel bars (402) are welded and fixed to straight threaded steel bars (400) of the same height.

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