Reinforcing system of adjustable unilateral formwork

Abstract

The utility model belongs to the technical field of basement enclosure construction, and particularly provides an adjustable unilateral supporting formwork reinforcing system which comprises a wood formwork system and a plurality of unilateral supporting formworks, the unilateral supporting formworks are distributed at intervals from front to back, and one sides of the unilateral supporting formworks are connected with the wood formwork system. The single-side supporting formwork comprises a plurality of frame bodies and an embedded part assembly, the frame bodies are sequentially connected into a whole from bottom to top, and the bottom of the lowermost frame body in the frame bodies is connected with the embedded part assembly. The problems that an existing single-side formwork cannot well adapt to different wall heights and is complex in structure, inconvenient to mount and dismount, low in construction efficiency and poor in stability are solved. According to the utility model, the height can be adjusted through bolt connection, and the device is suitable for different wall heights, strong in turnover applicability, simple in structure, convenient and fast to construct, obvious in benefit and good in stability during use, greatly reduces the labor intensity of field operators, optimizes personnel allocation, and has higher popularization and application values.

Description

Technical Field

[0001] This utility model belongs to the field of basement enclosure construction technology, specifically relating to an adjustable single-sided formwork reinforcement system. Background Technology

[0002] When the basement retaining structure uses diaphragm walls or retaining piles, the basement exterior walls are in close contact with the underground retaining structure, making it impossible to use the traditional double-sided formwork system for reinforcement; only a single-sided formwork system can be used. Conventional single-sided formwork typically includes through-wall tie rods, steel pipe and fastener scaffolding, and all-steel triangular frame formwork. However, it has the following disadvantages:

[0003] (1) Single-sided formwork support with through-wall tie rod

[0004] It requires a significant investment in rebar installation; frequent openings in the formwork must be avoided during formwork turnover, and the accuracy of rebar installation location is crucial; it also poses a significant risk of water seepage, resulting in high repair costs later on.

[0005] (2) Single-sided formwork support for steel pipe fastener scaffolding

[0006] A large number of steel pipes need to be rented, the operation is complicated for workers, the installation and dismantling work is extensive, and there are many fasteners to connect, which affects the construction efficiency and the connection quality cannot be guaranteed.

[0007] (3) All-steel triangular frame single-sided formwork

[0008] The scaffolding has a large self-weight and requires the assistance of lifting machinery, resulting in poor operability and construction convenience. Due to its large self-weight, temporary reinforcement should be carried out on the scaffolding during installation and dismantling to prevent it from tipping over and injuring people. The overall rental cost is high.

[0009] Chinese patent document CN220285305U discloses an adjustable joint single-sided formwork reinforcement system, including a panel system, a self-anchoring reinforcement system, a support system, a lifting ring system, and a traveling system. The panel system includes a panel and is connected and fixed to the support system via a single-sided connecting claw and a steel back rib. The support system adopts a height-adjustable assembly structure. The self-anchoring reinforcement system is located at the bottom of the support system and connected and fixed to a pressure beam at the bottom of the support system. The lifting ring system is located at the top of the support system, and the traveling system is located at the bottom of the support system. This document describes a system that eliminates the need for tie rod reinforcement in the construction of sidewalls for underpasses and foundation pits, eliminates the need for pre-reserved working surfaces on the outer side of the sidewall, reduces the size of the foundation pit, improves the waterproofing effect and economy of the sidewall concrete, facilitates formwork hoisting and relocation, and improves the uniformity of sidewall concrete joints. However, its structure is complex and its stability is poor. Utility Model Content

[0010] This utility model provides an adjustable single-sided formwork reinforcement system, which aims to overcome the problems of existing single-sided formwork that cannot adapt well to different wall heights, have complex structures, are inconvenient to install and dismantle, have low construction efficiency, and are not stable.

[0011] Therefore, this utility model provides an adjustable single-sided formwork reinforcement system, including a wooden formwork system and multiple single-sided formworks, which are spaced apart from front to back, with one side of each single-sided formwork connected to the wooden formwork system. Each single-sided formwork includes multiple frames and embedded component assemblies. One side of each frame is vertical, and the opposite side is either diagonal or vertical. Multiple frames are connected sequentially from bottom to top, with the vertical sides of the frames forming a straight line and the diagonal sides forming a diagonal line, which slopes upwards towards the wooden formwork system. The side of the frames forming the vertical line is externally connected to the wooden formwork system. The bottom of the lowest frame is connected to the embedded component assemblies.

[0012] Preferably, when the other side of the frame opposite to the vertical line is a vertical line, the frame is located at the top of the multiple frames.

[0013] Preferably, when the other side of the frame opposite the vertical line is oblique, the frame includes a vertical rod, a main diagonal rod, multiple horizontal rods, and secondary diagonal rods. The vertical rod and the main diagonal rod are distributed at intervals on the left and right sides. The vertical rod and the main diagonal rod are connected by multiple horizontal rods. The multiple horizontal rods are distributed at intervals from top to bottom. Each horizontal rod is horizontally set. A secondary diagonal rod is connected between two adjacent horizontal rods. The upper end of the secondary diagonal rod is connected to the inner side of the main diagonal rod below the upper horizontal rod of the two adjacent horizontal rods. The lower end of the secondary diagonal rod is connected to the inner side of the vertical rod above the lower horizontal rod of the two adjacent horizontal rods.

[0014] Preferably, when the other side of the frame opposite to the vertical line is vertical, the frame includes vertical rod two, vertical rod three, three horizontal rod two, and two secondary diagonal rod two. Vertical rod two and vertical rod three are arranged vertically with left and right intervals. The three horizontal rod two are connected from top to bottom between vertical rod two and vertical rod three. The horizontal rod two are arranged horizontally. One secondary diagonal rod two is connected between each two adjacent horizontal rod two. The two secondary diagonal rod two are symmetrically distributed vertically with the middle horizontal rod two of the three horizontal rod two as the center line. The upper and lower left sides of the horizontal rod two of the middle horizontal rod two are each connected to the left end of one secondary diagonal rod two. The right end of one secondary diagonal rod two is connected to the inner side of the vertical rod three below the right end of the upper horizontal rod two of the three horizontal rod two. The right end of the other secondary diagonal rod two is connected to the inner side of the vertical rod three above the right end of the lower horizontal rod two of the three horizontal rod two.

[0015] Preferably, when the other side of the frame opposite to the vertical line is a vertical line, the length of the second horizontal bar is equal to the length of the uppermost horizontal bar in the adjacent frame.

[0016] Preferably, the single-sided formwork also includes multiple diagonal braces, with one diagonal brace connecting the side of the frame away from the wooden formwork system to the ground.

[0017] Preferably, the angle between the diagonal brace and the vertical side of the frame is not less than 45 degrees.

[0018] Preferably, the embedded component assembly includes a nut, a connecting bolt, a tie rod sleeve, a pre-embedded bolt, a channel steel back rib, and a pressure plate. The tie rod sleeve is connected to the bottom corner of one side of the frame of the wooden formwork system. The lower part of the connecting bolt is connected inside the tie rod sleeve, and the nut is connected to the outside of the bolt. The channel steel back rib is located between the tie rod sleeve and the nut. The channel steel back rib connects multiple single-sided formwork supports. The pressure plate is connected between the channel steel back rib and the nut. The lower part of the pre-embedded bolt is connected to the target fixing position, and the upper part of the pre-embedded bolt is threaded through the tie rod sleeve.

[0019] Preferably, the embedded component assembly further includes an adjusting bolt, which is connected to the bottom side of the lowest frame, and the bottom side of the lowest frame is the side away from the wooden formwork system.

[0020] Preferably, the wooden formwork system includes a panel, secondary beams, and main beams, with the panel connected to multiple single-sided formwork supports in sequence through the secondary beams and main beams; the main beams include multiple round tube back ribs.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides an adjustable single-sided formwork reinforcement system suitable for all construction projects where the underground exterior wall structure requires single-sided formwork reinforcement. It significantly improves the applicability of the square steel truss single-sided formwork system to different wall heights after initial deployment; it significantly reduces the space occupied on the working surface and has minimal impact on surrounding construction procedures, especially suitable for basement exterior walls in situations with limited working space; the height can be adjusted via bolt connections, making it suitable for different wall heights; it has strong reusability; the structure is simple, construction is convenient and quick, greatly reducing the labor intensity of on-site operators, optimizing personnel allocation, and yielding significant benefits; the construction speed is fast, costs are reduced, and it has good stability during use, making it highly valuable for widespread application. Attached Figure Description

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is the main structural view of the adjustable single-sided formwork reinforcement system;

[0025] Figure 2 This is a right view of a wooden formwork system with multiple single-sided formwork supports connected to one side;

[0026] Figure 3 These are the main structural views of two types of frames and a linear frame;

[0027] Figure 4 This is the main structural view of the embedded component assembly, connection component one, and connection component two;

[0028] Figure 5 This is a front view of a single-sided formwork structure (a type of frame);

[0029] Figure 6 This is the main view of a single-sided formwork structure (combination of frame and linear frame);

[0030] Figure 7 This is the main view of a single-sided formwork structure (combination of two frame types);

[0031] Figure 8 This is the main view of a single-sided formwork structure (a combination of two types of frames and a straight frame);

[0032] Figure 9 yes Figure 4 Top view of the central locking mechanism.

[0033] Explanation of reference numerals in the attached drawings: 1. Single-sided formwork; 2. Wooden formwork system;

[0034] 1.1 Frame structure; 1.2 Embedded component assembly; 1.3 Diagonal bracing; 1.4 Straight frame structure;

[0035] 1.11 Vertical member 1; 1.12 Main diagonal member; 1.13 Horizontal member 1; 1.14 Secondary diagonal member 1;

[0036] 1.15. Vertical bar two; 1.16. Vertical bar three; 1.17. Horizontal bar two; 1.18. Secondary diagonal bar two;

[0037] 1.21 Nut; 1.22 Connecting bolt; 1.23 Tie rod sleeve; 1.24 Embedded bolt one; 1.25 Channel steel back rib; 1.26 Pressure plate; 1.27 Adjusting bolt; 1.28 Embedded bolt two;

[0038] 2.1 Panel; 2.2 Secondary beam; 2.3 Main beam; 2.4 L-shaped tie rod; 2.5 Mountain-shaped clamp; 2.6 Clamp nut; 2.7 Lock; 2.8 Insert;

[0039] 2.31, Round tube back rib; 2.71, Insertion hole. Detailed Implementation

[0040] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. Unless otherwise specified in the embodiments, conventional conditions or conditions recommended by the manufacturer should be followed.

[0041] Example 1:

[0042] like Figure 1 and Figure 2 As shown, an adjustable single-sided formwork reinforcement system includes a wooden formwork system 2 and multiple single-sided formworks 1. The multiple single-sided formworks 1 are spaced apart from front to back, and one side of each single-sided formwork 1 is connected to the wooden formwork system 2. Each single-sided formwork 1 includes multiple frames 1.1 and embedded component 1.2. One side of each frame 1.1 is vertical, and the other side of the frame 1.1 opposite to the vertical frame is either diagonal or vertical. The multiple frames 1.1 are connected sequentially from bottom to top. The vertical sides of the multiple frames 1.1 are connected to form a vertical line, and the diagonal sides of the multiple frames 1.1 are connected to form a diagonal line, which slopes from bottom to top towards the wooden formwork system 2. The wooden formwork system 2 is externally connected to the side of the multiple frames 1.1 that is connected to the vertical line. The bottom of the lowest frame 1.1 is connected to the embedded component 1.2.

[0043] Specifically, the single-sided formwork 1 is a load-bearing support system for single-sided wall formwork. The number of frames 1.1 in the single-sided formwork 1 is determined according to the wall height. Multiple frames 1.1 are connected sequentially from bottom to top to assemble the required single-sided formwork 1 height, which is suitable for different wall heights.

[0044] The vertical lines of multiple scaffold 1.1 are connected to form a single vertical line, and the diagonal lines of multiple scaffold 1.1 are connected to form a single diagonal line, which improves mechanical stability and provides good lateral bending resistance of the scaffold. The single-sided formwork 1 combined with the wooden formwork system 2 enables the scaffold 1.1 to resist the lateral pressure of concrete wall pouring with a small working surface. The construction using this adjustable single-sided formwork reinforcement system has achieved good results in actual engineering applications through project engineering practice.

[0045] Example 2:

[0046] Based on Example 1, such as Figure 7 As shown, when the other side of the frame 1.1 opposite to the vertical line shape is a vertical line shape, the frame 1.1 is located at the top of the multiple frames 1.1.

[0047] Specifically, when one side of frame 1.1 is vertical and the other side is diagonal, the outer contour of frame 1.1 is close to a trapezoid. When one side of frame 1.1 is vertical and the other side is diagonal, the outer contour of frame 1.1 is close to a rectangle. That is, the trapezoidal frame is connected to the lower end of the rectangular frame. The trapezoidal frame's wide bottom and narrow top structure can better distribute and transfer the load from the rectangular frame, effectively transmitting the force to the foundation. This allows the lateral pressure generated during concrete pouring to be more evenly distributed, avoiding excessive local stress and enhancing the overall structural stability. At the same time, the diagonal side of the trapezoidal frame can enhance the lateral stiffness of the structure. Combined with the rectangular frame, it can effectively resist horizontal loads and reduce the deformation and displacement of frame 1.1 under stress. The rectangular frame is regular and facilitates formwork installation, personnel operation, and material placement; the trapezoidal frame provides a stable base and a certain operating space. The combination of the two makes it convenient for construction workers to carry out operations such as tying steel bars and pouring concrete on the frame.

[0048] Example 3:

[0049] Based on Embodiment 2, when the other side of the frame 1.1 opposite to the vertical line shape is oblique, the frame 1.1 includes a vertical rod 1.11, a main diagonal rod 1.12, multiple horizontal rods 1.13, and secondary diagonal rods 1.14. The vertical rods 1.11 and the main diagonal rods 1.12 are distributed at intervals from left to right. The vertical rods 1.11 and the main diagonal rods 1.12 are connected by multiple horizontal rods 1.13. The multiple horizontal rods 1.13 are distributed at intervals from top to bottom. Each horizontal rod 1.13 is horizontally arranged. A secondary diagonal rod 1.14 is connected between two adjacent horizontal rods 1.13. The upper end of the secondary diagonal rod 1.14 is connected to the inside of the main diagonal rod 1.12 below the upper horizontal rod 1.13 of the two adjacent horizontal rods 1.13. The lower end of the secondary diagonal rod 1.14 is connected to the inside of the vertical rod 1.11 above the lower horizontal rod 1.13 of the two adjacent horizontal rods 1.13.

[0050] Specifically, the vertical member 1.11, the main diagonal member 1.12, the multiple horizontal members 1.13, and the secondary diagonal members 1.14 form multiple triangles, which effectively resist deformation and displacement caused by external forces. This allows the trapezoidal frame to maintain its relatively fixed shape and position when subjected to various loads, enhancing the overall structural stability. The loads on frame 1.1 (such as vertical and horizontal loads) can be evenly distributed to all parts of the trapezoidal frame and its foundation through the three sides of the triangles, according to the law of force transmission, avoiding local stress concentration and improving the frame's load-bearing capacity. The secondary diagonal members 1.14 increase the constraint on frame 1.1, improving the structure's bending and shear resistance, making the trapezoidal frame less prone to bending and torsional deformation under load, and ensuring the geometric shape and dimensional accuracy of frame 1.1 during use.

[0051] Example 4:

[0052] Based on Embodiment 3, when the other side of the frame 1.1 opposite to the vertical line shape is also vertical, the frame 1.1 includes a second vertical rod 1.15, a third vertical rod 1.16, three second horizontal rods 1.17, and two second diagonal rods 1.18. The second vertical rods 1.15 and the third vertical rod 1.16 are arranged vertically at intervals. The three second horizontal rods 1.17 are connected from top to bottom between the second vertical rods 1.15 and the third vertical rod 1.16. The second horizontal rods 1.17 are arranged horizontally, and each pair of adjacent second horizontal rods 1.17 is connected by a second diagonal rod 1.18. The two second diagonal rods 1.18 are arranged in a 3:3 ratio. The middle horizontal bar 1.17 is the center line, and the vertical bars 1.15 at the upper and lower left sides of the middle horizontal bar 1.17 are connected to the left end of a secondary diagonal bar 1.18. The right end of one secondary diagonal bar 1.18 is connected to the inner side of the vertical bar 1.16 at the lower right side of the upper horizontal bar 1.17 among the three horizontal bars 1.17. The right end of the other secondary diagonal bar 1.18 is connected to the inner side of the vertical bar 1.16 at the upper right side of the lower horizontal bar 1.17 among the three horizontal bars 1.17.

[0053] Specifically, vertical bar 2.15, vertical bar 3.16, three horizontal bars 2.17, and two secondary diagonal bars 2.18 form multiple triangles. The two secondary diagonal bars 2.18 are symmetrically arranged with the middle horizontal bar 2.17 as the center, so that the force is more evenly distributed in all parts of the rectangular frame, reducing the risk of structural damage and effectively resisting the torsion of the rectangular structure.

[0054] Preferably, when the other side of the frame 1.1 opposite to the vertical line is vertical, the length of the second horizontal bar 1.17 is equal to the length of the uppermost horizontal bar 1.13 of the adjacent frame 1.1.

[0055] Specifically, this ensures a precise fit between the two frame structures, reduces installation errors, simplifies the connection, and creates a stable geometric shape after connection. This allows for effective force transmission within the structure, reducing deformation and displacement, and improving structural stability and safety.

[0056] Preferably, the two adjacent frame bodies 1.1 are connected by bolts.

[0057] Specifically, the bolted connection makes installation and disassembly convenient and facilitates construction.

[0058] Example 5:

[0059] Based on embodiment 4, the single-sided formwork 1 also includes multiple diagonal braces 1.3, with one diagonal brace 1.3 connecting the side of the frame 1.1 away from the wooden formwork system 2 to the ground.

[0060] Specifically, the diagonal brace 1.3 can provide additional support for the frame 1.1, effectively transferring the load on the frame 1.1 to the ground, increasing the connection strength between the frame 1.1 and the ground, thereby improving the overall stability of the frame 1.1, making it more resistant to various external forces, and reducing the risk of the frame tilting, swaying or collapsing.

[0061] Preferably, the angle between the diagonal brace 1.3 and the vertical side of the frame 1.1 is not less than 45 degrees.

[0062] Specifically, this angle can enhance the vertical load-bearing capacity of frame 1.1, effectively resist horizontal forces, reduce the displacement and deformation of frame 1.1 under the action of horizontal forces, and improve the stability and reliability of the structure.

[0063] Preferably, the diagonal brace 1.3 is a steel pipe.

[0064] Specifically, steel pipes possess high tensile, compressive, and shear strength, enabling them to withstand substantial loads. As diagonal braces, they effectively transfer the load of the scaffold to the ground, enhancing its stability and load-bearing capacity, making them both economical and practical. One end of the steel pipe is bolted to the scaffold (1.1), while the other end is connected to embedded parts in the ground. The structure is simple and easy to install and disassemble.

[0065] Example 6:

[0066] Based on Example 5, such as Figure 4 As shown, the embedded component assembly 1.2 includes a nut 1.21, a connecting bolt 1.22, a tie rod sleeve 1.23, a pre-embedded bolt 1.24, a channel steel back rib 1.25, and a pressure plate 1.26. The tie rod sleeve 1.23 is connected to the bottom corner of one side of the frame 1.1 of the wooden formwork system 2. The lower part of the connecting bolt 1.22 is connected inside the tie rod sleeve 1.23, and the nut 1.21 is connected outside the bolt 1.22. The channel steel back rib 1.25 is located between the tie rod sleeve 1.23 and the nut 1.21. The channel steel back rib 1.25 connects multiple single-sided formwork supports 1. The pressure plate 1.26 is connected between the channel steel back rib 1.25 and the nut 1.21. The lower part of the pre-embedded bolt 1.24 is connected to the target fixing position, and the upper part of the pre-embedded bolt 1.24 is threaded through the tie rod sleeve 1.23.

[0067] Specifically, the lower part of the pre-embedded bolt 1.24 is fixedly connected to the target fixing position. The upper part of the pre-embedded bolt 1.24 and the connecting bolt 1.22 are connected inside the tie rod sleeve 1.23. The tie rod sleeve 1.23 positions and protects the connecting bolt 1.22 and the pre-embedded bolt 1.24. The channel steel back rib 1.25 connects multiple spacer frames 1.1 into a whole, improving the overall structural stability. The channel steel back rib 1.25 is a double channel steel back rib, and the connecting bolt 1.22 passes through the middle of the double channel steel back rib, forming a "clamping" effect and enhancing overall stability. When the nut 1.21 is tightened, the pressure plate 1.26 avoids localized stress concentration on the channel steel back rib 1.25.

[0068] Preferably, the angle between the connecting bolt 1.22 and the ground is 45°.

[0069] Specifically, the single-sided formwork 1 is a load-bearing support system for the formwork of a single wall. The single-sided formwork 1 is connected to the anchor bolt embedded in the concrete at one end by a 45° load-bearing bolt (connecting bolt 1.22), and the other end is inclined to hold the single-sided formwork 1. The 45° connection provides the best stability.

[0070] Preferably, the embedded component assembly 1.2 further includes an adjusting bolt 1.27, which is connected to one side of the bottom of the lowest frame 1.1, and the bottom side of the lowest frame 1.1 is the side away from the wooden template system 2.

[0071] Specifically, the angle of the frame 1.1 can be easily adjusted by adjusting bolt 1.27, making it highly operable.

[0072] Example 7:

[0073] Based on embodiment 6, the wooden formwork system 2 includes a panel 2.1, a secondary beam 2.2 and a main beam 2.3. The panel 2.1 is connected to multiple single-sided formwork supports 1 in sequence through the secondary beams 2.2 and the main beam 2.3. The main beam 2.3 includes multiple round tube back ribs 2.31.

[0074] Specifically, panel 2.1 connects multiple single-sided formwork supports 1 into a whole via secondary beams 2.2 and main beams 2.3. By adjusting the verticality of the single-sided formwork supports 1, the verticality of the wooden formwork system 2 can be guaranteed to meet the requirements without the need for additional internal bracing or tie-down of the formwork. The round tube back rib 2.31 has high load-bearing capacity, good torsional resistance, is easy to reuse, has fast fastener connection speed, and is economical and practical.

[0075] Preferably, the wooden formwork system 2 further includes multiple connecting components, and the secondary beam 2.2 and the main beam 2.3 are connected by multiple connecting components. The connecting components include an L-shaped tie rod 2.4, a mountain-shaped clamping plate 2.5, and a clamping plate nut 2.6. One end of the L-shaped tie rod 2.4 is connected to the secondary beam 2.2, and the other end of the L-shaped tie rod 2.4 passes through the middle of two adjacent round tube back ribs 2.31. The mountain-shaped clamping plate 2.5 is clamped to the outer side of two adjacent round tube back ribs 2.31. Both the mountain-shaped clamping plate 2.5 and the clamping plate nut 2.6 are sleeved on the outside of the L-shaped tie rod 2.4.

[0076] Specifically, the combination of L-shaped tie rod 2.4, mountain-shaped clamping plate 2.5 and clamping plate nut 2.6 enables the secondary beam 2.2 and the round tube back rib 2.31 to be fastened, making installation and disassembly convenient.

[0077] Preferably, the wooden formwork system 2 further includes multiple connecting components 2, and the round tube back rib 2.31 is connected to the frame 1.1 through multiple connecting components 2; the connecting components 2 include a latch 2.7 and a plug 2.8, the latch 2.7 is used to snap the frame 1.1 and the round tube back rib 2.31, and the plug 2.8 is inserted into the latch 2.7.

[0078] Specifically, the locking mechanism 2.7 and the plug 2.8 are used to lock the frame 1.1 and the round tube back rib 2.31, making installation and disassembly convenient.

[0079] Preferred, such as Figure 4 and Figure 9 As shown, the buckle 2.7 is U-shaped, with the part of the U-shape near the opening recessed downwards, and the closed end of the U-shape having a horizontally opened insertion hole 2.71. The recessed part is connected to the round tube back rib 2.31, and the plug 2.8 is inserted into the insertion hole 2.71, and the inner side of the plug 2.8 contacts the frame 1.1.

[0080] Specifically, the U-shaped structure provides excellent positioning and connection for the frame 1.1 and the round tube back rib 2.31, and the plug 2.8 is inserted into the socket 2.71 to achieve a stable connection between the frame 1.1 and the round tube back rib 2.31.

[0081] Preferably, the plug-in 2.8 is a wedge plate.

[0082] Specifically, the wedge plate structure is simple, and after installation, it makes the frame 1.1 and the round tube back rib 2.31 fit more tightly.

[0083] Preferably, a straight frame 1.4 is provided on the uppermost frame 1.1 of the single-sided formwork 1. The vertical lines of the straight frame 1.4 and the frame 1.1 are connected to form a vertical line, and the straight frame 1.4 is connected to the wooden formwork system 2. The upper end of the straight frame 1.4, the wooden formwork system 2 and the wall are connected by pre-embedded bolts 1.28. Figures 5-8It is a single-sided formwork 1 formed by combining and connecting several frame structures 1.1 and / or straight frame structures 1.4. This utility model is not limited to the structural combination shown in the figure, and the combination can be selected according to the actual situation.

[0084] Specifically, by pre-embedded bolts 1.28, the upper structure of the single-sided formwork 1 and the wooden formwork system 2 is further secured to the wall, which further improves the stability of the overall structure.

[0085] Example 8:

[0086] Based on Example 7, the construction method of the adjustable single-sided formwork reinforcement system of this utility model includes the following steps:

[0087] S1. Construction Preparation:

[0088] Specifically, based on actual needs, determine the number of wooden formwork system 2 and single-sided support formwork 1, determine the required frame 1.1 based on the wall height, and combine the multiple frames 1.1 required for each single-sided support formwork 1 into one unit;

[0089] The load-bearing capacity of the wooden formwork system 2 and the single-sided formwork 1 was verified to ensure that the reinforcement system of the adjustable single-sided formwork after installation meets the load-bearing capacity requirements. Specifically, stress and strain models were established, and mechanical calculations and component verification were performed through load analysis under working conditions. The load-bearing capacity of the frame at the maximum combined height and the stiffness of the nodes were verified to ensure that they meet the construction requirements. Based on the configuration of the square steel truss and the formwork type, a formwork model was established using MIDASCIVIL finite element analysis software or other software. The stress of the frame and the stress of the anchor bolts were analyzed to ensure that the reinforcement system of the adjustable single-sided formwork after installation meets the load-bearing capacity requirements.

[0090] S2. Install the pre-embedded anchor bolts (pre-embedded bolt 1.24):

[0091] Specifically, the pre-embedded anchor bolts are custom-made tie rods, which come in three types:

[0092] a. The embedded anchor bolts are straight in shape with a straight length of 700mm; suitable for locations with ground or floor slabs.

[0093] b. The pre-embedded anchor bolts are straight in shape, with one end of the straight line being a hook. The straight line is 650mm long and the hook is 80mm long. They are suitable for suspended locations such as sump pits and elevator shafts.

[0094] c. The pre-embedded anchor bolts are straight in shape, with one end of the straight line being a hook. The straight line is 950mm long and the hook is 80mm long. This type of bolt is suitable for locations with relatively high floor heights that require multiple construction operations.

[0095] The distance between the anchor bolt protruding from the ground and panel 2.1 is 170±5mm. The distance between adjacent embedded anchor bolts is determined according to actual needs. Embedded bolt 1.24 forms a 45-degree angle with the ground. When embedding embedded bolt 1.24 on site, a straight line must be used to ensure that embedded bolts 1.24 are on the same straight line. Before embedding embedded bolt 1.24, the threads should be protected by wrapping and securing it with plastic sheeting to prevent concrete from adhering to the threads and affecting the tie rod sleeve 1.23 during construction. When fixing embedded bolt 1.24, it cannot be directly spot-welded to the existing structural main reinforcement. To ensure that embedded bolt 1.24 does not shift or deviate during concrete pouring, additional reinforcement is required at the target location. Embedded bolt 1.24 is spot-welded to the additional reinforcement. During spot welding, care should be taken not to damage the effective diameter of embedded bolt 1.24.

[0096] When the height of a single-sided formwork 1 exceeds 3.5 meters, anchor bars should be pre-embedded at the corresponding position behind the single-sided formwork 1 to reinforce the support frame (the anchor bars are used to connect the diagonal brace 1.3); the construction should be carried out simultaneously with the pre-embedded bolts 1.24, and the diameter of the pre-embedded anchor bars should be 20mm or more.

[0097] Pre-embedded anchor bolt quality and requirements: Strictly control the installation quality of embedded parts. The pre-embedded anchor bolts should be 150mm away from the guide wall, and the spacing between pre-embedded anchor bolts should be 250mm. A guide line should be used during pre-embedding to ensure that the anchor bolts are straight and evenly spaced. The pre-embedded anchor bolts are modular and reusable.

[0098] S3, Laying out and positioning:

[0099] Specifically, based on the construction drawings, control lines are laid out along the outer edge of the wall on this floor, and the wall thickness is controlled using a plumb bob (or laser projection instrument). Since deviations may occur due to the concealed nature of the wall work, areas where the wall thickness cannot meet the requirements are chiseled away.

[0100] S4. Acceptance of steel reinforcement binding;

[0101] S5. Install the timber formwork system:

[0102] Specifically, before installing the formwork, sponge strips should be applied to the edge of the guide wall to prevent cement mortar leakage. When installing the wooden formwork system, the lower end of the system should be aligned with the pre-marked wall line. Installation should begin from the corners, proceeding in a straight line. During installation, the wooden formwork system should be temporarily supported with steel pipes. Custom-made wooden formwork systems should be used to ensure that corner angle deviations meet requirements and that edges are straight.

[0103] S6. Frame structure for installing single-sided formwork:

[0104] After the wooden formwork system is installed, it is connected to the single-sided support formwork 1 through the connecting component 2. Before the wooden formwork system is installed, all wooden formwork systems should be cleaned and coated with a qualified water-based release agent.

[0105] When hoisting single-sided formwork, it should be lifted from the storage area to the site. During hoisting, single-sided formwork should be placed and lifted gently. When multiple single-sided formwork units are stacked together, they should be neatly stacked on a level surface to prevent deformation. When assembling single-sided formwork, it should be pre-assembled at the material storage area and then lifted to the site by tower crane and truck crane.

[0106] For single-sided formwork hoisting, steel wire rope slings must not be used. When hoisting horizontally, pre-embedded lifting rings should be used, and when hoisting vertically, pre-drilled holes should be used. When there are no lifting rings or pre-drilled holes, the distance from the sling binding point to the end of the single-sided formwork should not exceed 1 / 5 of the single-sided formwork length, and the angle between the sling and the horizontal plane should not be less than 60°. During hoisting, tie ropes should be installed at both ends of the formwork to prevent impact.

[0107] S7. Install the back ribs of the channel steel;

[0108] In sections facing the wall, after installing five to six single-sided formwork frames, channel steel back braces are inserted into the embedded parts system. The truss feet of the single-sided formwork are secured with pre-fabricated double-channel steel as pressure feet.

[0109] S8. Correct and accept the single-sided formwork;

[0110] The verticality of the single-sided formwork was checked using a plumb bob and adjusted using adjusting bolt 1.27. Since the single-sided formwork will tilt slightly backward under load, its inclination towards the wall should be controlled to be approximately 5mm during installation to offset the deformation of the poured concrete and minimize structural deviation. Each frame (1.1) is connected by diagonal bracing (1.3), forming a unified structure and ensuring overall stability.

[0111] S9. Concrete pouring and formwork removal.

[0112] When pouring concrete, it is essential to pour in layers and sections sequentially, with each pour height ≤ 50cm and an initial pouring speed of 1.0m / h. When dismantling the adjustable single-sided formwork reinforcement system, unless there are dimensional changes, the system should be dismantled as a whole according to the hoisting module; it should not be completely disassembled and reassembled. The dismantled adjustable single-sided formwork reinforcement system should have its panels cleaned and coated with release agent for reuse.

[0113] This construction method is applicable to all building projects where the underground exterior wall structure requires reinforcement using a single-sided formwork system. It significantly improves the applicability of the square steel truss single-sided formwork system to different wall heights after a single investment; it significantly reduces the space occupied on the working surface and has minimal impact on surrounding construction procedures, especially suitable for basement exterior walls in situations with limited working space; the height can be adjusted via bolt connections, making it suitable for different wall heights; it has strong reusability; construction is convenient and quick, greatly reducing the labor intensity of on-site operators, optimizing personnel allocation, and yielding significant benefits; the construction speed is fast, costs are reduced, and the forming quality is good, making it highly valuable for widespread application.

[0114] In the description of this utility model, it should be understood that if terms such as "front", "inside", "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it does 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. Therefore, the terms used to describe positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting this utility model.

[0115] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A tunable one-sided formwork bracing system, characterized by: The wood formwork system (2) and a plurality of single-side form supports (1) are included, the plurality of single-side form supports (1) are spaced and distributed from front to back, and one side of the plurality of single-side form supports (1) is connected with the wood formwork system (2); the single-side form support (1) includes a plurality of frame bodies (1.1) and a buried part assembly (1.2), one side of the frame body (1.1) is a vertical line shape, and the other side of the frame body (1.1) opposite to the vertical line shape is a diagonal line shape or a vertical line shape; the plurality of frame bodies (1.1) are sequentially connected from bottom to top, the vertical side of the plurality of frame bodies (1.1) is connected as a vertical line, the diagonal side of the plurality of frame bodies (1.1) is connected as a diagonal line, and the diagonal line is inclined from bottom to top to the direction of the wood formwork system (2); one side of the plurality of frame bodies (1.1) connected as the vertical line is circumscribed with the wood formwork system (2); the bottom of the lowermost frame body (1.1) in the plurality of frame bodies (1.1) is connected with the buried part assembly (1.2).

2. The adjustable one-sided form-tied reinforcement system of claim 1, wherein: When the other side of the frame body (1.1) opposite to the vertical line shape is a vertical line shape, the frame body (1.1) is located at the uppermost end in the plurality of frame bodies (1.1).

3. The adjustable, one-sided form-tied reinforcement system of claim 2, wherein: When the other side of the frame body (1.1) opposite to the vertical line shape is a diagonal line shape, the frame body (1.1) includes a vertical rod one (1.11), a main diagonal rod (1.12), a plurality of horizontal rods one (1.13) and a secondary diagonal rod one (1.14), the vertical rod one (1.11) and the main diagonal rod (1.12) are spaced and distributed left and right, the vertical rod one (1.11) and the main diagonal rod (1.12) are connected through the plurality of horizontal rods one (1.13), the plurality of horizontal rods one (1.13) are spaced and distributed from top to bottom, each horizontal rod one (1.13) is horizontally arranged, one secondary diagonal rod one (1.14) is connected between adjacent two horizontal rods one (1.13), the upper end of the secondary diagonal rod one (1.14) is connected to the inner side of the main diagonal rod (1.12) below the upper horizontal rod one (1.13) in the adjacent two horizontal rods one (1.13), and the lower end of the secondary diagonal rod one (1.14) is connected to the inner side of the vertical rod one (1.11) above the lower horizontal rod one (1.13) in the adjacent two horizontal rods one (1.13).

4. The adjustable, one-sided form-tied reinforcement system of claim 3, wherein: When the other side of the frame body (1.1) opposite to the vertical line shape is vertical line shape, the frame body (1.1) comprises vertical rod two (1.15), vertical rod three (1.16), three horizontal rods two (1.17) and two secondary inclined rods two (1.18), the vertical rod two (1.15) and the vertical rod three (1.16) are vertically arranged at intervals, the three horizontal rods two (1.17) are connected at intervals from top to bottom between the vertical rod two (1.15) and the vertical rod three (1.16), the horizontal rod two (1.17) is horizontally arranged, one secondary inclined rod two (1.18) is connected between every two adjacent horizontal rods two (1.17), the two secondary inclined rods two (1.18) are symmetrically distributed above and below the horizontal rod two (1.17) at the middle position of the three horizontal rods two (1.17) as a middle line, the left end of the horizontal rod two (1.17) at the middle position is connected to the inside of the vertical rod two (1.15) at the upper and lower positions on the left end of one secondary inclined rod two (1.18), the right end of one secondary inclined rod two (1.18) is connected to the inside of the vertical rod three (1.16) at the lower position of the horizontal rod two (1.17) on the right end of the horizontal rod two (1.17) above, and the right end of the other secondary inclined rod two (1.18) is connected to the inside of the vertical rod three (1.16) at the upper position of the horizontal rod two (1.17) on the right end of the horizontal rod two (1.17) below.

5. The adjustable, one-sided form-tied reinforcement system of claim 4, wherein: When the other side of the frame body (1.1) opposite to the vertical line shape is vertical line shape, the length of the horizontal rod two (1.17) is equal to the length of the uppermost horizontal rod one (1.13) in the frame body (1.1) adjacent thereto.

6. The adjustable, one-sided form-tied reinforcement system of claim 1, wherein: The single-sided formwork (1) further comprises a plurality of inclined braces (1.3), one inclined brace (1.3) is connected between the side of the frame body (1.1) away from the wood formwork system (2) and the ground.

7. The adjustable, one-sided form-tied reinforcement system of claim 6, wherein: The angle between the inclined brace (1.3) and the vertical line side of the frame body (1.1) is not less than 45 degrees.

8. The adjustable, one-sided form-tied reinforcement system of claim 1, wherein: The embedded component assembly (1.2) comprises a nut (1.21), a connecting bolt (1.22), a pull rod sleeve (1.23), a pre-buried bolt one (1.24), a channel steel back bar (1.25) and a pressing plate (1.26), the pull rod sleeve (1.23) is connected in the bottom corner of the side of the frame body (1.1) connected to the wood formwork system (2), the lower part of the connecting bolt (1.22) is connected in the pull rod sleeve (1.23), the bolt (1.22) is connected with the nut (1.21) outside, the channel steel back bar (1.25) is located between the pull rod sleeve (1.23) and the nut (1.21), the channel steel back bar (1.25) connects a plurality of single-sided formworks (1), the pressing plate (1.26) is connected between the channel steel back bar (1.25) and the nut (1.21), the lower part of the pre-buried bolt one (1.24) is connected to the target fixed position, and the upper part of the pre-buried bolt one (1.24) penetrates the pull rod sleeve (1.23).

9. The adjustable, one-sided form-tied reinforcement system of claim 1, wherein: The embedded component assembly (1.2) further comprises an adjusting bolt (1.27), the adjusting bolt (1.27) is connected to the side of the bottom of the lowermost frame body (1.1), and the side of the bottom of the lowermost frame body (1.1) is the side away from the wood formwork system (2).

10. The adjustable, one-sided form-tied reinforcement system of claim 1, wherein: The wood formwork system (2) comprises a panel (2.1), a secondary beam (2.2) and a main beam (2.3), the panel (2.1) connects multiple single-sided formworks (1) in sequence through the secondary beam (2.2) and the main beam (2.3); the main beam (2.3) comprises multiple round pipe back battens (2.31).

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