A triangular truss support system for concrete beams and slabs

Abstract

This invention belongs to the field of engineering construction, specifically relating to a triangular truss support system for concrete beams and slabs. It aims to solve the problems in related technologies where the use of a single circular steel pipe for vertical load-bearing components leads to insufficient load-bearing capacity and overall stability, resulting in increased material consumption, poor adaptability to working conditions, and reduced construction efficiency. This triangular truss support system for concrete beams and slabs includes vertical load-bearing units. Each vertical load-bearing unit has three vertical steel pipes passing through it on any horizontal cross-section. These three vertical steel pipes are parallel to each other and arranged in a triangle on the cross-section. Multiple transverse connecting structures are arranged at equal intervals along the height direction to fix the three vertical steel pipes together as a whole. By continuously constraining the relative displacement between the vertical steel pipes under vertical loads through the transverse connecting structures, the buckling tendency under compression is suppressed, thereby enabling the three steel pipes to cooperate stably in bearing the load. This improves vertical stiffness and resistance to critical instability loads without increasing the cross-sectional size of a single pipe.

Description

Technical Field

[0001] This invention belongs to the field of engineering construction, and specifically relates to a triangular truss support system for concrete beams and slabs. Background Technology

[0002] In the construction of concrete beam and slab formwork support, steel pipe coupler scaffolding, disc-lock scaffolding, and independent steel supports are widely used. These support systems generally use a single circular steel pipe as the vertical load-bearing component, usually adopted due to ease of construction and existing technological inertia. However, the bending stiffness and axial bearing capacity of a single circular steel pipe are limited. When subjected to large vertical loads or used for high support heights, the single circular steel pipe is prone to overall buckling or local instability. To control the risk of instability, horizontal and diagonal members are often added to the support system in engineering practice to enhance the overall restraint effect, which may increase the diameter or wall thickness of the single circular steel pipe. However, increasing the size of the single circular steel pipe significantly increases material consumption and structural self-weight, and is difficult to adapt flexibly to different working conditions due to limitations in transportation and installation conditions. This leads to a lack of versatility in the support system under varying construction conditions, resulting in complex construction organization and reduced material turnover efficiency.

[0003] The existing formwork support structure suffers from insufficient load-bearing capacity and overall stability due to the use of single circular steel pipes for vertical load-bearing components, resulting in increased material consumption, poor adaptability to working conditions, and reduced construction efficiency. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, namely the insufficient load-bearing capacity and overall stability of existing formwork support structures due to the use of single circular steel pipes for vertical load-bearing components, leading to increased material consumption, poor adaptability to working conditions, and reduced construction efficiency, this invention provides a triangular truss support system for concrete beams and slabs, comprising:

[0005] The system includes at least one vertical load-bearing unit and a top support assembly and a base assembly connected to the top and bottom of the vertical load-bearing unit, respectively. The vertical load-bearing unit serves as a basic load-bearing component, supporting vertical loads. Each vertical load-bearing unit has three vertical steel pipes passing through it on any horizontal cross-section. The axes of these three pipes are parallel to each other and arranged in a triangular pattern on the cross-section. Multiple horizontal connecting structures are arranged at equal intervals along the height direction of the vertical load-bearing unit, fixing the vertical steel pipes together as a single unit. The top support assembly supports the upper formwork, and the base assembly transfers the load to the lower foundation.

[0006] Specifically, it also includes horizontal adjusting crossbars. The vertical load-bearing unit comprises a standard segment, which consists of a vertical steel pipe, a transverse connecting structure connecting adjacent vertical steel pipes, and a connecting plate fixedly integrated on the outer periphery. The connecting plate has insertion holes. Multiple vertical load-bearing units are spaced apart horizontally, and at least two horizontal adjusting crossbars arranged vertically at intervals are provided between two adjacent vertical load-bearing units. Each end of the horizontal adjusting crossbar is provided with a pin, which is inserted into the insertion holes at corresponding heights of two adjacent vertical load-bearing units to form a transverse connection between adjacent vertical load-bearing units.

[0007] Specifically, the spacing between adjacent horizontal connecting structures is set to a basic module. The connecting discs on the vertical load-bearing unit are arranged at predetermined intervals along the height direction to form standardized connecting nodes. The predetermined intervals are integer multiples of the basic module.

[0008] Specifically, the horizontal adjusting bar includes a fixed section, an adjusting section, and an adjusting sleeve. The adjusting sleeve is rotatably connected to the fixed section and threadedly engaged with the adjusting section. Rotation of the adjusting sleeve changes the distance between the fixed section and the adjusting section, thereby adjusting the total length of the horizontal adjusting bar.

[0009] Specifically, the connecting disc has multiple plug-in terminals on its outer periphery, and the plug holes are formed on the plug-in terminals. The ends of the crossbar fixing section and the crossbar adjusting section are respectively sleeved on the corresponding plug-in terminals, and both the ends of the crossbar fixing section and the crossbar adjusting section have mating grooves. Each pin is vertically inserted into the hole area where the corresponding mating groove overlaps with the plug hole to achieve locking.

[0010] Specifically, it also includes a self-locking diagonal rod. The horizontal adjusting crossbar also includes a connecting pin, and both the fixed section and the adjusting section of the crossbar have connecting holes at their ends, through which the connecting pin passes. The two ends of the self-locking diagonal rod are respectively connected to the connecting pins at the ends of two horizontal adjusting crossbars arranged vertically at intervals on two adjacent vertical load-bearing units, thereby forming a diagonal diagonal connection within the rectangular area enclosed by the vertical load-bearing units and the horizontal adjusting crossbars.

[0011] Specifically, the self-locking diagonal rod includes a main rod body, a sliding sleeve, and a spring. The main rod body has a first opening, and the sliding sleeve has a second opening. The sliding sleeve is slidably fitted onto the end of the main rod body, such that the first and second openings partially overlap. The mating pin includes a rod portion passing through the connecting hole and limiting heads located at both ends of the rod portion. The cross-sectional area of ​​the limiting heads is larger than the cross-sectional area of ​​the rod portion. When the sliding sleeve slides, the size of the overlapping area between the first and second openings changes. The maximum size of the overlapping area is not less than the size of the limiting heads, allowing the limiting heads to pass through the overlapping area. The spring is used to drive the sliding sleeve to slide along the main rod body, thereby reducing the overlapping area to a size smaller than the limiting heads, thus locking it with the mating pin.

[0012] Specifically, the vertical load-bearing unit is composed of multiple standard segments spliced ​​together vertically. An extension section is provided at the joint of two adjacent standard segments to achieve vertical extension. The extension section includes three connecting sleeves arranged vertically and a horizontal bar that secures the three connecting sleeves together. Each connecting sleeve is fitted onto the ends of the vertical steel pipes corresponding to the upper and lower standard segments, and a partition is provided inside the connecting sleeve. The vertical steel pipe is inserted into the connecting sleeve and abuts against the partition, thereby achieving positioning through the partition.

[0013] Specifically, the top support assembly includes a top support connecting section and a top support, and the base assembly includes a base connecting section and a base. The top support connecting section is connected to the top of the vertical load-bearing unit, and the base connecting section is connected to the bottom of the vertical load-bearing unit.

[0014] Specifically, the base assembly also includes a bottom connecting plate with the same structure as the connecting plate, and the bottom connecting plate is disposed on the base connecting section. The vertical distance between the bottom connecting plate and the bottommost connecting plate of the vertical load-bearing unit is equal to the preset interval of the standardized connecting nodes.

[0015] The beneficial effects that this invention can achieve by combining the above solutions are as follows: This invention provides a triangular truss support system for concrete beams and slabs, comprising: The system includes at least one vertical load-bearing unit and a top support assembly and a base assembly connected to the top and bottom of the vertical load-bearing unit, respectively. The vertical load-bearing unit serves as a basic load-bearing component, supporting vertical loads. Each vertical load-bearing unit has three vertical steel pipes passing through it on any horizontal cross-section. The axes of these three pipes are parallel to each other and arranged in a triangular pattern on the cross-section. Multiple horizontal connecting structures are arranged at equal intervals along the height direction of the vertical load-bearing unit, fixing the vertical steel pipes together as a single unit. The top support assembly supports the upper formwork, and the base assembly transfers the load to the lower foundation.

[0016] In practical applications, under support conditions, the vertical load borne by the upper formwork is applied to the vertical load-bearing unit via the top support assembly. The vertical load-bearing unit shares this load through three vertical steel pipes arranged in a triangle on any horizontal cross-section. The axes of the three vertical steel pipes are parallel to each other, forming a spatial force-bearing system with a large bending section modulus and torsional stiffness. Multiple transverse connecting structures are arranged at equal intervals along the height direction of the vertical load-bearing unit, fixing the vertical steel pipes together as a whole, effectively suppressing the lateral deformation tendency of each vertical steel pipe during compression, and enhancing the overall stability of the vertical load-bearing unit. The load is then transferred to the foundation below through the base assembly, achieving a stable and continuous vertical force transmission path.

[0017] As can be seen, compared with the prior art, this triangular truss support system for concrete beams and slabs is equipped with at least one vertical load-bearing unit. Each vertical load-bearing unit has three vertical steel pipes passing through it on any horizontal cross-section. The axes of the three vertical steel pipes are parallel to each other and arranged in a triangle on the cross-section. Multiple transverse connecting structures are arranged at equal intervals along the height direction to fix the three vertical steel pipes together. By continuously constraining the relative displacement between the vertical steel pipes under vertical loads through the transverse connecting structures, their buckling tendency under compression is suppressed, thereby enabling the three steel pipes to cooperate stably to bear the load. This improves the vertical stiffness and resistance to instability critical load of a single unit without increasing the cross-sectional size of a single pipe. It significantly simplifies the structural design of the support system, improves the adaptability to various load conditions and construction efficiency, and overcomes the problems of insufficient load-bearing capacity and overall stability caused by the use of a single circular steel pipe for the vertical load-bearing components in existing formwork support structures, which leads to increased material consumption, poor adaptability to working conditions, and reduced construction efficiency. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1This is a schematic diagram of the overall structure of the triangular truss support system for concrete beams and slabs provided in an embodiment of the present invention when used as an independent steel support. Figure 2 This is a schematic diagram of the overall structure of the triangular truss support system for concrete beams and slabs after it has been used as an independent steel support and vertically extended. Figure 3 This is a schematic diagram of the overall structure of the triangular truss support system used as a full-span truss for concrete beams and slabs. Figure 4 This is a schematic diagram of the overall structure of the triangular truss support system for concrete beams and slabs after it has been used as a full-span scaffold and vertically extended. Figure 5 This is a structural schematic diagram of the top support assembly; Figure 6 This is a structural diagram of the base assembly; Figure 7 This is a structural diagram of the extended section; Figure 8 This is a structural schematic diagram of a vertical load-bearing unit; Figure 9 This is an enlarged structural diagram of the connection point between the horizontal adjustment bar and the connecting plate. Figure 10 This is a cross-sectional enlarged structural diagram of the joint between the horizontal adjusting crossbar and the self-locking diagonal bar. Figure 11 This is a schematic diagram of the triangular truss support system used as an independent steel support for concrete beams and slabs. Figure 1 ; Figure 12 This is a schematic diagram of the triangular truss support system used as an independent steel support for concrete beams and slabs. Figure 2 ; Figure 13 This is a schematic diagram of the triangular truss support system used as a full-span truss for concrete beams and slabs.

[0019] icon: 100. Vertical load-bearing unit; 110. Standard segment; 111. Vertical steel pipe; 112. Horizontal connection structure; 113. Connecting plate; 101. Insertion hole; 120. Extension section; 121. Connecting sleeve; 122. Horizontal bar; 123. Partition plate; 200, Top support assembly; 210, Top support; 220, Top support connecting section; 300. Base assembly; 310. Base; 320. Base connecting section; 330. Bottom connecting plate; 400. Horizontal adjusting bar; 410. Pin; 420. Bar fixing section; 401. Connecting groove; 430. Bar adjusting section; 440. Bar adjusting sleeve; 450. Connecting pin; 451. Bar part; 452. Limiting head; 500, Self-locking diagonal bar; 510, Main rod body; 501, First opening; 520, Sliding sleeve; 502, Second opening; 530, Spring. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] This invention provides a triangular truss support system for concrete beams and slabs, comprising: At least one vertical load-bearing unit 100 and a top support assembly 200 and a base assembly 300 respectively connected to the top and bottom of the vertical load-bearing unit 100. The vertical load-bearing unit 100 serves as a basic load-bearing component to bear vertical loads. Three vertical steel pipes 111 pass through any horizontal cross-section of the vertical load-bearing unit 100, with the axes of the three vertical steel pipes 111 parallel to each other and arranged in a triangular pattern in the cross-section. Multiple transverse connecting structures 112 are arranged at equal intervals along the height direction of the vertical load-bearing unit 100, and are fixedly connected to the vertical steel pipes 111 as a whole. The top support assembly 200 supports the upper formwork, and the base assembly 300 transfers the load to the lower foundation.

[0023] In summary, the triangular truss support system for concrete beams and slabs provided by this invention can achieve the following technical effects: This triangular truss support system for concrete beams and slabs includes at least one vertical load-bearing unit 100. Each vertical load-bearing unit 100 has three vertical steel pipes 111 passing through it on any horizontal cross-section. The axes of the three vertical steel pipes 111 are parallel to each other and arranged in a triangle on the cross-section. Multiple transverse connecting structures 112 are arranged at equal intervals along the height direction to fix the three vertical steel pipes 111 together. By continuously constraining the relative displacement between the vertical steel pipes 111 under vertical loads through the transverse connecting structures 112, their tendency to buckle under compression is suppressed. This allows the three steel pipes to cooperate in stable load bearing, improving the vertical stiffness and critical load resistance of a single unit without increasing the cross-sectional size of a single pipe. This significantly simplifies the structural design of the support system and improves its adaptability to various load conditions and construction efficiency. It overcomes the problems of insufficient load-bearing capacity and overall stability caused by the use of a single circular steel pipe for the vertical load-bearing components in existing formwork support structures, which leads to increased material consumption, poor adaptability to working conditions, and reduced construction efficiency.

[0024] The following combination Figures 1 to 13 The structure and shape of the triangular truss support system for concrete beams and slabs provided in this embodiment are described in detail below: To enhance the overall connection and lateral stability between adjacent vertical load-bearing units 100, the triangular truss support system for concrete beams and slabs in this embodiment further includes horizontal adjusting crossbars 400. Each vertical load-bearing unit 100 includes a standard segment 110, which is composed of a vertical steel pipe 111, a transverse connecting structure 112 connecting adjacent vertical steel pipes 111, and a connecting plate 113 fixedly integrated on the outer periphery. The connecting plate 113 has insertion holes 101. Multiple vertical load-bearing units 100 are spaced apart horizontally, and at least two horizontal adjusting crossbars 400 are arranged vertically at intervals between adjacent vertical load-bearing units 100. Each end of the horizontal adjusting crossbar 400 has a pin 410, which is inserted into the insertion holes 101 at corresponding heights of two adjacent vertical load-bearing units 100 to form a transverse connection between adjacent vertical load-bearing units 100. The transverse connecting structure 112 can optionally be configured as a planar triangular truss consisting of three horizontal steel pipes connected end to end, with its three vertices fixedly connected to three vertical steel pipes 111, or as a single piece of triangular steel plate stamped or cut, with its three corners connected to the three vertical steel pipes 111 by welding or bolting. The connecting plate 113 is configured as a hollow structure.

[0025] In this embodiment, each of the vertical steel pipes 111 constituting the vertical load-bearing unit 100 has an outer diameter of 20mm and a wall thickness of 2mm. The total cross-sectional area of ​​the three vertical steel pipes 111 at any horizontal section is 339.3mm². 2The cross-sectional area of ​​a single 48-system disc buckle upright steel pipe is less than 450.4 mm². 2 Therefore, the material consumption and weight per unit length of the vertical load-bearing unit 100 are reduced. The vertical load-bearing unit 100 forms a triangular force-bearing system through three vertical steel pipes 111, and combined with the connection and constraint effect of the transverse connecting structure 112 between the three vertical steel pipes 111, the material consumption is reduced while ensuring load-bearing capacity. The load-bearing capacity of the vertical load-bearing unit 100 is twice that of the 48-system disc-locked steel pipe. The materials of the vertical steel pipes 111 and the transverse connecting structure 112 can be Q355B steel.

[0026] In this embodiment, multiple transverse connecting structures 112 are arranged at equal intervals along the length of the vertical steel pipe 111. This interval is the basic module of this support system, which is 500mm in this embodiment. The selection of this module is based on the following considerations: the 500mm module is consistent with the module of the existing disc-lock support system uprights, which facilitates its use in conjunction with existing horizontal bars, diagonal bars, and other accessories on the construction site; at the same time, this module allows for a moderate density of transverse constraint nodes between the three vertical steel pipes 111, which can effectively suppress the buckling tendency of a single steel pipe under compression without excessively increasing the number and weight of the connecting structures. Experimental verification shows that under this module, the overall bending stiffness and torsional stiffness of the vertical load-bearing unit are significantly improved compared to a single steel pipe without transverse connections. Those skilled in the art can adaptively adjust the basic module according to the actual erection height and load requirements, for example, adjusting it to 600mm or 400mm, without departing from the protection scope of this invention.

[0027] To ensure that the connecting plate 113 has sufficient welding surface and local rigidity, and to prevent deformation or detachment under load, this embodiment arranges the connecting plate 113 only at the location of the transverse connecting structure 112. This utilizes the continuous support plane of the transverse connecting structure 112 to provide a direct welding base and local support for the connecting plate 113, ensuring that each connecting plate 113 achieves a complete weld lap length and reliable root rigidity. Specifically, the spacing between adjacent transverse connecting structures 112 is used as the basic module. The connecting plates 113 on the vertical load-bearing unit 100 are arranged at predetermined intervals along the height direction to form standardized connection nodes. The predetermined intervals are integer multiples of the basic module.

[0028] To facilitate factory prefabrication and rapid on-site assembly, and to ensure the continuity of force transmission at the joints, in this embodiment, the vertical load-bearing unit 100 is formed by splicing one or more standard segments 110 along the vertical direction. An extension section 120 is provided at the joint of two adjacent standard segments 110 to achieve vertical extension. The extension section 120 includes three connecting sleeves 121 arranged vertically and a crossbar 122 that fixes the three connecting sleeves 121 together. Each connecting sleeve 121 is fitted onto the ends of the vertical steel pipes 111 corresponding to the upper and lower standard segments 110. A partition 123 is provided inside the connecting sleeve 121, and the vertical steel pipes 111 are inserted into the connecting sleeve 121 and abut against the partition 123 for limiting their position.

[0029] Regarding how the standard segment 110 ensures that the horizontal connecting structures 112 and connecting plates 113 on the assembled vertical load-bearing unit 100 still meet the requirement of equal spacing, specifically: The length of standard segment 110 is set as the number of connecting plates 113 multiplied by the preset interval of the connecting plates 113, minus the thickness of a partition plate 123. This is because when adjacent standard segments 110 are spliced ​​together via extension sections 120, the partition plate 123 in the extension section 120 occupies a thickness value. Subtracting this thickness ensures that all standard segments 110 of the upper and lower segments remain accurately aligned on the same vertical modular grid after splicing, allowing the horizontal adjusting bar 400 to be installed at a uniform height at the corresponding position of any segment. For example, the basic module is 500mm, the preset interval of the connecting plates 113 is 1000mm, the thickness of the partition plate 123 is 3mm, and the length of the standard segment 110 is 1997mm.

[0030] Regarding the structural composition of the horizontal adjustment bar 400, specifically: The horizontal adjusting bar 400 includes a fixed section 420, an adjusting section 430, and an adjusting sleeve 440. The adjusting sleeve 440 is rotatably connected to the fixed section 420 and threadedly engaged with the adjusting section 430. Rotation of the adjusting sleeve 440 changes the distance between the fixed section 420 and the adjusting section 430, thereby adjusting the total length of the horizontal adjusting bar 400.

[0031] Regarding how the horizontal adjustment bar 400 connects to the connecting plate 113, specifically: The connecting plate 113 has multiple plug-in terminals on its outer periphery, with plug holes 101 formed on the plug-in terminals. The ends of the crossbar fixing section 420 and the crossbar adjusting section 430 are respectively sleeved on the corresponding plug-in terminals, and both the ends of the crossbar fixing section 420 and the crossbar adjusting section 430 have mating grooves 401. Each pin 410 is vertically inserted into the hole area where the corresponding mating groove 401 overlaps with the plug hole 101 to achieve locking.

[0032] To further enhance spatial stiffness, the triangular truss support system for concrete beams and slabs in this embodiment also includes self-locking diagonal braces 500. The horizontal adjusting crossbars 400 also include connecting pins 450. Both the fixed section 420 and the adjusting section 430 of the crossbar have connecting holes through which the connecting pins 450 pass. The two ends of the self-locking diagonal braces 500 are respectively connected to the connecting pins 450 at the ends of two vertically spaced horizontal adjusting crossbars 400 on two adjacent vertical load-bearing units 100, thus forming a diagonal diagonal connection within the rectangular area enclosed by the vertical load-bearing units 100 and the horizontal adjusting crossbars 400. This creates a spatially geometrically invariant system and enhances lateral stiffness.

[0033] Regarding the structural composition of the self-locking diagonal bar 500, specifically: The self-locking diagonal bar 500 includes a main rod body 510, a sliding sleeve 520, and a spring 530. The main rod body 510 has a first opening 501, and the sliding sleeve 520 has a second opening 502. The sliding sleeve 520 is slidably fitted onto the end of the main rod body 510, such that the first opening 501 and the second opening 502 partially overlap. The mating pin 450 includes a rod portion 451 passing through the connecting hole and limiting heads 452 located at both ends of the rod portion 451. The cross-sectional area of ​​the limiting heads 452 is larger than the cross-sectional area of ​​the rod portion 451. When the sliding sleeve 520 slides, the size of the overlapping area of ​​the first opening 501 and the second opening 502 changes. The maximum size of the overlapping area is not less than the size of the limiting heads 452, allowing the limiting heads 452 to pass through the overlapping area. Spring 530 is used to drive sliding sleeve 520 to slide along main rod 510, thereby reducing the overlapping area to a size smaller than the limit head 452, thereby locking with mating pin 450.

[0034] To ensure compatibility with existing disc buckle system components and improve the ease of operation of the top adjustment components, in this embodiment, the top support assembly 200 includes a top support connecting section 210 and a top support 220, and the base assembly 300 includes a base connecting section 310 and a base 320. The top support connecting section 210 is connected to the top of the vertical load-bearing unit 100, and the base connecting section 310 is connected to the bottom of the vertical load-bearing unit 100. The screw diameter of both the top support 220 and the base 320 is 48 mm, which is compatible with the widely used 48-series disc buckle support frame system, facilitating mixed installation or component replacement.

[0035] To reduce the free height of the frame bottom to meet the construction specifications for the installation height of the sweeping rod, in this embodiment, the base assembly 300 also includes a bottom connecting plate 330 with the same structure as the connecting plate 113, and the bottom connecting plate 330 is disposed on the base connecting section 310. The vertical distance between the bottom connecting plate 330 and the bottommost connecting plate 113 of the vertical load-bearing unit 100 is equal to the preset interval of the standardized connection node.

[0036] In summary, the specific working process of the triangular truss support system for concrete beams and slabs provided in this embodiment is as follows: Install vertical load-bearing unit 100: Place the base assembly 300 on the foundation surface below the concrete beam slab. Rotate the base screw of the base assembly 300 to adjust the level, so that the top surface of the base 320 of the base assembly 300 is at the same elevation, and align the bottom of the first standard segment 110 with the bottom connecting plate 330 of the base assembly 300, inserting it into place.

[0037] The next standard segment 110 is vertically spliced ​​to the already installed standard segment 110 via the extension section 120. The end of each vertical steel pipe 111 of the new standard segment 110 is inserted into the corresponding connecting sleeve 121, so that the end of the vertical steel pipe 111 abuts against the partition plate 123. The standard segments 110 are installed sequentially upwards until the vertical load-bearing unit 100 reaches the design height.

[0038] Install the top support assembly 200 on top of the highest standard segment 110. Align the top support connecting section 210 of the top support assembly 200 with the top of the uppermost standard segment 110, and rotate the screw of the top support 220 of the top support assembly 200 to make the top support 220 press against the upper template.

[0039] Install horizontal adjustment bar 400 to enhance the overall connection and lateral stability between adjacent vertical load-bearing units 100: At least two horizontally adjustable crossbars 400 are installed at vertical intervals between adjacent vertical load-bearing units 100 to form a rectangular area enclosed by the vertical load-bearing units 100.

[0040] First, fit the end of the horizontal bar fixing section 420 onto the insertion end of the connecting plate 113 at the corresponding height of one of the vertical load-bearing units 100, aligning the mating groove 401 with the insertion hole 101, and vertically insert the pin 410 for pre-fixation. Then, rotate the horizontal bar adjusting sleeve 440 to extend the horizontal bar adjusting section 430 until the end of the horizontal bar adjusting section 430 can fit onto the insertion end of the connecting plate 113 at the corresponding height of another vertical load-bearing unit 100, align it, and vertically insert the pin 410 at the other end.

[0041] First, rotate the crossbar adjusting sleeve 440 to shorten the crossbar adjusting section 430. Then, attach the ends of the crossbar fixing section 420 and the crossbar adjusting section 430 to the insertion ends of the connecting plates 113 at corresponding heights of two adjacent vertical load-bearing units 100, respectively. Align the mating grooves 401 at the ends of the crossbar fixing section 420 and the crossbar adjusting section 430 with the insertion holes 101 of the connecting plates 113. Next, rotate the crossbar adjusting sleeve 440 in the opposite direction to extend the crossbar adjusting section 430, bringing the two vertical load-bearing units 100 closer together until the required horizontal tension is achieved. Finally, vertically insert the pins 410 into the overlapping areas of the mating grooves 401 and insertion holes 101 at each end for locking.

[0042] Install a self-locking diagonal brace 500 to form a complete spatial geometrically invariant system: First, pull the sliding sleeves 520 at both ends of the self-locking diagonal rod 500 to overcome the spring force of the spring 530, expanding the overlapping area of ​​the first opening 501 on the main rod 510 and the second opening 502 on the sliding sleeve 520 to a size not less than that of the limiting head 452. Then, insert the sliding sleeve 520 into the limiting head 452 of the docking pin 450 at the end of each of the two adjacent vertical load-bearing units 100, so that the limiting head 452 passes through the overlapping area. Next, release the hand, and the spring 530 automatically drives the sliding sleeve 520 to slide along the main rod 510, reducing the overlapping area of ​​the first opening 501 and the second opening 502 to a size smaller than that of the limiting head 452, thereby locking it with the docking pin 450. Repeat the above operation on the other end of the self-locking diagonal rod 500 to complete the fixing.

[0043] Once all components are installed, the support system can bear the loads of the formwork and the pouring. After construction is completed, the components are removed one by one in reverse order.

[0044] The terms “first”, “second”, etc., are used to distinguish similar objects, not to describe or indicate a specific order or sequence.

[0045] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0046] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A triangular truss support system for concrete beams and slabs, characterized in that, include: At least one vertical load-bearing unit (100) and a top support assembly (200) and a base assembly (300) respectively connected to the top and bottom of the vertical load-bearing unit (100). The vertical load-bearing unit (100) serves as a basic load-bearing component and is used to bear vertical loads; The vertical load-bearing unit (100) has three vertical steel pipes (111) passing through it on any horizontal cross section. The axes of the three vertical steel pipes (111) are parallel to each other and are arranged in a triangle on the cross section. Multiple transverse connecting structures (112) are arranged at equal intervals along the height direction of the vertical load-bearing unit (100), and the vertical steel pipe (111) is fixedly connected as a whole; The top support assembly (200) is used to support the upper template, and the base assembly (300) is used to transfer the load to the lower foundation.

2. The triangular truss support system for concrete beams and slabs according to claim 1, characterized in that: It also includes a horizontal adjustment bar (400); The vertical load-bearing unit (100) includes a standard segment (110), which is composed of the vertical steel pipe (111), a transverse connecting structure (112) connecting adjacent vertical steel pipes (111), and a connecting plate (113) fixedly integrated on the outer periphery. The connecting plate (113) is provided with a socket (101). Multiple vertical load-bearing units (100) are spaced apart in the horizontal direction, and at least two horizontal adjusting crossbars (400) are arranged vertically between two adjacent vertical load-bearing units (100). The horizontal adjusting bar (400) has a pin (410) at each end. The pin (410) is inserted into the insertion hole (101) at the corresponding height of two adjacent vertical load-bearing units (100) to form a lateral tie between adjacent vertical load-bearing units (100).

3. The triangular truss support system for concrete beams and slabs according to claim 2, characterized in that: The spacing between adjacent transverse connection structures (112) is set as the basic module; The connecting plates (113) on the vertical load-bearing unit (100) are arranged at a predetermined interval along the height direction to form a standardized connection node; The preset interval is an integer multiple of the base modulus.

4. The triangular truss support system for concrete beams and slabs according to claim 3, characterized in that: The horizontal adjusting crossbar (400) includes a fixed section (420), an adjusting section (430), and an adjusting sleeve (440). The crossbar adjusting sleeve (440) is rotatably connected to the crossbar fixed section (420) and threadedly engaged with the crossbar adjusting section (430); The rotation of the crossbar adjusting sleeve (440) can change the distance between the crossbar fixed section (420) and the crossbar adjusting section (430), thereby adjusting the total length of the horizontal adjusting crossbar (400).

5. The triangular truss support system for concrete beams and slabs according to claim 4, characterized in that: The outer periphery of the connecting plate (113) is provided with a plurality of plug-in terminals, and the plug hole (101) is opened on the plug-in terminal; The end of the crossbar fixing section (420) and the end of the crossbar adjusting section (430) are respectively sleeved on the corresponding plug-in end, and the end of the crossbar fixing section (420) and the end of the crossbar adjusting section (430) are both provided with a mating groove (401). Each of the pins (410) is vertically inserted into the hole region where the corresponding mating groove (401) overlaps with the insertion hole (101) to achieve locking.

6. The triangular truss support system for concrete beams and slabs according to claim 4, characterized in that: It also includes a self-locking diagonal bar (500); The horizontal adjustment bar (400) also includes a connecting pin (450). The ends of the bar fixing section (420) and the bar adjustment section (430) are provided with connecting holes, and the connecting holes are provided with connecting pins (450). The two ends of the self-locking diagonal bar (500) are respectively connected to the connecting pins (450) at the ends of the two horizontal adjusting crossbars (400) arranged vertically at intervals on the two adjacent vertical load-bearing units (100), thereby forming a diagonal diagonal tie in the rectangular area enclosed by the vertical load-bearing unit (100) and the horizontal adjusting crossbar (400).

7. The triangular truss support system for concrete beams and slabs according to claim 6, characterized in that: The self-locking diagonal bar (500) includes a main bar body (510), a sliding sleeve (520), and a spring (530); The main rod body (510) has a first opening (501), and the sliding sleeve (520) has a second opening (502). The sliding sleeve (520) is slidably sleeved on the end of the main rod body (510), so that the first opening (501) and the second opening (502) partially overlap. The connecting pin (450) includes a rod portion (451) passing through the connecting hole and limiting heads (452) located at both ends of the rod portion (451), wherein the cross-sectional area of ​​the limiting head (452) is larger than the cross-sectional area of ​​the rod portion (451). When the sliding sleeve (520) slides, the size of the overlapping area of ​​the first opening (501) and the second opening (502) changes; The maximum size of the overlapping area is not less than the size of the limiting head (452) so as to allow the limiting head (452) to pass through the overlapping area; The spring (530) is used to drive the sliding sleeve (520) to slide along the main rod (510), thereby reducing the overlapping area to a size smaller than the limiting head (452), and thus locking it with the docking pin (450).

8. The triangular truss support system for concrete beams and slabs according to claim 3, characterized in that: The vertical load-bearing unit (100) is spliced ​​together from multiple standard segments (110) in the vertical direction. An extension segment (120) is provided at the joint of two adjacent standard segments (110) to achieve vertical joint extension. The extension section (120) includes three connecting sleeves (121) arranged in the vertical direction and a crossbar (122) that fixes the three connecting sleeves (121) together as one unit. Each of the connecting sleeves (121) is fitted onto the ends of the vertical steel pipes (111) corresponding to the upper and lower standard segments (110), and the connecting sleeve (121) is provided with a partition (123). The vertical steel pipe (111) is inserted into the connecting sleeve (121) and abuts against the partition (123) to achieve limiting through the partition (123).

9. The triangular truss support system for concrete beams and slabs according to claim 3, characterized in that: The top support assembly (200) includes a top support connecting section (210) and a top support (220), and the base assembly (300) includes a base connecting section (310) and a base (320). The top support connecting section (210) is connected to the top of the vertical load-bearing unit (100), and the base connecting section (310) is connected to the bottom of the vertical load-bearing unit (100).

10. The triangular truss support system for concrete beams and slabs according to claim 9, characterized in that: The base assembly (300) also includes a bottom connecting plate (330) with the same structure as the connecting plate (113), and the bottom connecting plate (330) is disposed on the base connecting section (310); The vertical distance between the bottom connecting plate (330) and the bottommost connecting plate (113) of the vertical load-bearing unit (100) is equal to the preset interval of the standardized connecting node.

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