Modular steel heavy support system

Abstract

The utility model discloses a modularization type steel heavy support system relates to the field of formwork support construction technology. The system includes by two type steel back -to -back and forms the support column, end connecting assembly and middle connecting piece. End connecting assembly is inlayed in the installation gap between type steel, and its connecting support and the pressure plate of support column end portion abut, and constructs the end face pressure bearing path of direct transmission of axial pressure. The middle connecting piece is cooperated with optional outer buckle connecting piece, and the synchronous clamping of type steel web is realized through fastener. Through reserving the standardization extension connecting hole of each component and cooperating horizontal, oblique bar, realize the modularization extension of support system from independent unit to whole lattice. The utility model effectively solves the problem of insufficient support bearing capacity and inconvenient assembly and disassembly of the prior art, has the advantages of clear stress path, reliable node, high modularization degree, flexible assembly and the like, and is suitable for heavy load and large-span construction.

Description

Technical Field

[0001] This utility model belongs to the field of formwork support construction technology, specifically relating to a modular steel heavy support system. Background Technology

[0002] During construction, temporary support systems are typically required for cast-in-place concrete structures, large-span structures, or heavy-load construction conditions to support the formwork, self-weight, and construction loads. Common existing support systems include steel pipe coupler scaffolding, disc-lock scaffolding, and welded steel support structures.

[0003] Among them, steel pipe coupler scaffolding mainly relies on the friction of couplers to achieve node connection. The node stiffness is low, and it is prone to slippage when subjected to large axial pressure and horizontal load, resulting in insufficient overall stability. Although disc-lock scaffolding has high assembly and disassembly efficiency, its member cross-sectional dimensions and node structure are limited, and the load-bearing capacity of a single member is limited, making it difficult to meet the needs of heavy-load or large-span construction. Although welded steel support structures have high node strength, they mostly rely on on-site welding or integral processing, which is inconvenient to assemble and disassemble, has poor component versatility, and makes it difficult to achieve standardized reuse.

[0004] In addition, the existing support systems generally have the following problems: First, the support columns are mostly made of a single profile, which has limited bending resistance and overall stability. Second, the node forms are simple and lack standardized connection nodes that can be flexibly arranged at the ends and middle of the columns, which limits the arrangement of the members. Third, the overall modularity of the support system is not high, making it difficult to quickly combine or expand according to different construction conditions, which affects construction efficiency and economy.

[0005] Therefore, there is an urgent need for a steel support system with high load-bearing capacity, reliable node connections, modular assembly of components, and suitability for heavy loads and complex working conditions. Utility Model Content

[0006] This utility model aims to solve the problems of insufficient load-bearing capacity, single node connection form, low component versatility and modularity, and difficulty in meeting heavy load and complex construction conditions in the existing support system, and provides a steel heavy support system with clear structural stress, flexible node arrangement, and modular assembly.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A modular steel heavy-duty support system, comprising: The support column is composed of two parallel and spaced steel sections, with an installation gap formed between the webs of the steel sections, and several rows of first connecting holes provided on the webs along the length direction. An end connection assembly is provided at the end of the support column, including a connecting body and multiple connecting supports fixed to its side. The connecting body is embedded in the installation gap and fixed between two steel sections by fasteners. A pressure-bearing structure is provided between the end of the support column and the connecting support to form a pressure-bearing path that directly transmits the axial pressure of the support column to the end face of the connecting support. The central connector, embedded within the installation gap, is used to maintain the parallel spacing of the steel profiles and provide connection points for external members; Both the end connecting component and the middle connecting component are provided with expansion connection holes that can be detachably connected to external rods.

[0008] In a preferred embodiment of this utility model, the steel profile is a channel steel, which is arranged back to back, and the first connecting hole is a round hole or an oblong hole.

[0009] As a preferred embodiment of this utility model, the pressure-bearing structure includes a pressure-bearing plate fixed to the end of the steel profile, the pressure-bearing plate abutting against the top end face of the connecting support, and the planar dimension of the pressure-bearing plate is not less than the cross-sectional dimension of the end of the steel profile.

[0010] In a preferred embodiment of this utility model, the connecting body has a rectangular cross-section structure, the width of which matches the installation gap. The connecting body includes at least one plug-in portion, which extends from one end of the connecting body and passes through the end face of the connecting support. The plug-in portion is provided with a second connecting hole that matches the first connecting hole. The connecting support has a U-shaped cross-section structure, the opening of which faces away from the connecting body, and an expansion connecting hole is provided on its flange.

[0011] As a preferred embodiment of the present invention, the end connection assembly includes a first end connector, the first end connector having a plug-in portion, and also includes a sealing plate, the bottom ends of the connecting body and each of the connecting supports are fixed to the sealing plate, and the sealing plate is provided with a third connecting hole.

[0012] As a preferred embodiment of the present invention, the end connection assembly includes a second end connector, the connection support of which is disposed in the middle of the connection body, and a plug-in part is provided at each end of the connection body. The plug-in parts at both ends are respectively embedded in the installation gap of two longitudinally connected support columns to realize the longitudinal connection of adjacent support columns.

[0013] As a preferred embodiment of this utility model, the middle connector is a box-type structure with a width matching the installation gap, including two parallel support plates and a rib plate vertically fixed between the two support plates; the support plate is provided with a fourth connection hole adapted to the first connection hole, the edge of the support plate protrudes from the flange of the steel section, and is provided with an expansion connection hole.

[0014] As a preferred embodiment of this utility model, it also includes an external fastener, which has a U-shaped cross-section structure. The web of the external fastener is provided with a fifth connecting hole, and the flange is provided with an expansion connecting hole. The opening of the external fastener faces away from the outer side of the web of the steel section, and fasteners pass through the fifth connecting hole, the first connecting hole, and the fourth connecting hole simultaneously, so as to realize the synchronous clamping of the web of the steel section by the external fastener and the middle fastener.

[0015] As a preferred embodiment of this utility model, it also includes horizontal and diagonal members, each with pin holes at both ends. These members are detachably connected to the extended connecting holes on the connecting support, the middle connecting member, and the outer buckle connecting member via connecting pins, thereby forming a spatial lattice support structure.

[0016] As a preferred embodiment of this utility model, it further includes an adjustable support base, which includes an adjusting screw and two adjusting bases respectively sleeved at both ends of the adjusting screw; the adjusting base includes a support base plate and an adjusting sleeve fixed thereon, the support base plate is provided with a sixth connecting hole matching the end plate, and is detachably connected to the end plate by bolts; the upper and lower ends of the adjusting screw have opposite thread directions, the threads are threaded with the adjusting base sleeves, and a rotating arm is fixed in the middle of the adjusting screw, which drives the adjusting base to extend and retract synchronously.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. High overall load-bearing capacity The double-section steel support columns, combined with the embedded end connection components and the middle connector, make the axial load transfer path clear and significantly improve the overall load-bearing capacity and stability.

[0018] 2. Reliable node connections and reasonable stress distribution. Each node is connected by bolts and pins, resulting in a clear and reliable connection method that avoids safety hazards caused by friction connections or on-site welding.

[0019] 3. High degree of modularity and flexible configuration By setting standardized expansion connection holes at the ends and middle of the support column, horizontal and diagonal members can be flexibly arranged according to different construction conditions to form a variety of support configurations.

[0020] 4. Easy to assemble and disassemble, and economical. All system components can be prefabricated and reused, and construction can be completed on site with only simple assembly, which significantly improves construction efficiency and material turnover rate. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of an independent support tower for a modular steel heavy-duty support system according to this utility model; Figure 2 This is a schematic diagram of the independent support unit of this utility model; Figure 3 This is a schematic diagram of the installation of the first end connection component in this utility model; Figure 4 This is a schematic diagram showing the installation of the central connector and the outer fastener in this utility model; Figure 5 This is a schematic diagram of the structure of the first end connection component in this utility model; Figure 6 This is a schematic diagram of the structure of the second end connection component in this utility model; Figure 7 This is a structural schematic diagram of the central connecting member in this utility model; Figure 8 This is a schematic diagram of the structure of the external fastener connector in this utility model; Figure 9 This is a schematic diagram of the adjustable support base in this utility model.

[0022] In the diagram: 100—support column; 110—section steel; 111—first connecting hole; 112—pressure plate; 120—installation gap; 200—end connecting assembly; 200a—first end connector; 200b—second end connector; 210—connecting body; 211—insertion part; 212—second connecting hole; 220—connecting support; 221—expansion connecting hole; 230—end sealing plate; 231—third connecting hole; 300—middle connector; 310—support plate; 311—fourth connecting hole; 320—fixed rib; 400—outer fastener connector; 410—fifth connecting hole; 500—transverse member; 600—diagonal member; 700—adjustable support; 710—adjusting base; 711—support base plate; 712—adjusting screw sleeve; 713—sixth connecting hole; 720—adjusting screw; 721—rotating arm. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "longitudinal", "lateral", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "multiple" or "more than" means two or more, unless otherwise explicitly defined.

[0026] Example 1 like Figure 2 This embodiment provides a basic modular steel heavy-duty support unit. The support unit includes a support column 100, first end connectors 200a installed at the upper and lower ends of the support column 100, and at least one middle connector 300 installed in the middle of the support column 100.

[0027] like Figure 2 As shown, the support column 100 is composed of two parallel and spaced channel steels 110 arranged back to back, with an installation gap 120 between their webs. A bearing plate 112 is provided at the end of the channel steel 110, and multiple rows of first connecting holes 111 are formed on the web of the channel steel 110 along its length.

[0028] like Figure 2 and Figure 5As shown, the first end connector 200a includes a connecting body 210, four connecting supports 220, and an end cap 230. The connecting body 210 has a rectangular cross-section, the width of which matches the installation gap 120. One end of the connecting body 210 has a plug-in portion 211 that extends from one end of the connecting body and passes through the end face of the connecting support 220. The plug-in portion 211 has a second connecting hole 212. The connecting body 210 is embedded in the installation gap 120 and is fixed to the support column 100 by bolts passing through the second connecting hole 212 and the first connecting hole 111. The connecting supports 220 have a U-shaped cross-section, with the opening of the connecting support 220 facing away from the connecting body 210. Its web is fitted and fixed to the side of the connecting body 210, and its flange has an expansion connecting hole 221. The top end face of the connecting support 220 abuts against the bearing plate 112 fixed to the end of the channel steel 110. The planar dimension of the bearing plate 112 is not smaller than the cross-sectional dimension of the end of the steel section 110, thereby constructing a bearing path through which the axial pressure of the support column is directly transmitted to the end face of the connecting support via the bearing plate, effectively avoiding shear damage to the connecting fasteners. The end plate 230 is a horizontally arranged steel plate. The bottom ends of the connecting body 210 and the connecting support 220 are both fixed to the end plate 230, and the axial direction of the connecting body 210 and the connecting support 220 is perpendicular to the end plate 230. The end plate 230 has a third connecting hole 231. Because the first end connector 200a has the end plate 230, it can be used to connect the adjustable support 700 through the third connecting hole 231, or it can be connected to the end plate 230 of the first end connector 200a of another support unit to realize the lateral expansion or special connection of the support column.

[0029] like Figure 2 , Figure 4 and Figure 7 As shown, the central connector 300 is a box-type structure with a width matching the installation gap 120. It includes two parallel support plates 310 and two ribs 320 vertically welded between the two support plates 310. Each support plate 310 has a fourth connection hole 311 corresponding to the first connection hole 111, allowing it to be fixed to the support column 100 with bolts. The edge of the support plate 310 extends beyond the flange of the channel steel 110, and an expansion connection hole 221 is provided on the extended portion. The central connector 300 is embedded in the middle of the support column 100, providing a reliable connection node for transverse and diagonal members. More importantly, through the rigid structure formed by the support plates 310 and the ribs 320, it effectively maintains the parallel spacing of the double-section steel 110, significantly enhancing the local stability of the middle part of the support column and preventing buckling instability in the web plane under pressure.

[0030] The independent support unit is a complete load-bearing unit that can be longitudinally connected through the end plates 230 at its upper and lower ends, or laterally connected through the expansion connection holes 221 on the connecting support 220 and the middle connector 300.

[0031] Example 2: like Figure 1 and Figure 2 As shown, this embodiment is composed of multiple independent support units as described in Embodiment 1 spliced ​​together in the longitudinal (vertical) direction to increase the support height.

[0032] The end connection assembly at the docking point of the independent support unit is the second end connector 200b. For example... Figure 1 , Figure 3 and Figure 6 As shown, the structural features of the second end connector 200b that differ from those of the first end connector 200a are: the second end connector 200b does not have an end cap plate, its connecting support 220 is fixed in the middle position of the connecting body 210, and the upper and lower ends of the connecting body 210 are respectively provided with a plug-in part 211.

[0033] During assembly, the upper insertion part of the second end connector 200b at the upper end of the lower support unit is inserted into the installation gap 120 at the lower end of the upper support unit and secured with bolts. This process is repeated to connect multiple support units in series, forming a single, independently supported column. The first end connector 200a is suitable for the ends (top or bottom) of the support column, facilitating connection to the base or top structure; while the second end connector 200b is specifically used for longitudinal connection of the middle section of the support column, enabling rapid and standardized expansion of the column's height.

[0034] To achieve precise fine-tuning of the top and bottom elevations of the support columns, a first end connector 200a can be installed at the upper end of the topmost support unit, and an adjustable support base 700 can be installed on its end cap 230; similarly, a first end connector 200a and an adjustable support base 700 can be installed at the lower end of the bottommost support unit. Figure 9 As shown, the adjustable support base 700 includes a support base plate 710, an adjusting screw 720 connected to the support base plate 710, and an adjusting sleeve threadedly engaged with the adjusting screw 720. The support base plate 710 has a plate structure and a sixth connecting hole 713 that matches the third connecting hole 231. The upper and lower ends of the adjusting screw 720 have threads with opposite directions of rotation. By rotating the rotating arm 721 fixedly connected in the middle, the screw rotation drives the two adjusting bases 710 with opposite directions to extend or shorten synchronously relative to the screw, thereby achieving rapid compensation of the overall height without changing the main structure of the support column.

[0035] Example 3 like Figure 1, Figure 3 and Figure 4 As shown, this embodiment consists of four independent support units (or independent support columns) as described in Embodiment 1 or Embodiment 2, which are connected in the horizontal direction to form a stable spatial tower structure.

[0036] The four support units are arranged in a rectangular shape. At corresponding height positions between adjacent support units, they are connected using transverse members 500 and diagonal members 600. The connection points are mainly located on the connecting support 220 of the end connecting assembly 200, the middle connecting member 300, and the expansion connecting hole 221 of the outer fastening connecting member 400. Both ends of the transverse members 500 and the diagonal members 600 are provided with pin holes, enabling quick hinged connections via pins.

[0037] like Figure 1 , Figure 4 and Figure 8 As shown, the external fastener 400 has a U-shaped cross-section, with a fifth connecting hole 410 on its web and an extended connecting hole 221 on its flange. During installation, the opening of the external fastener faces away from the web of the channel steel 110, and its web is fitted against the outer side of the web of the channel steel 110, aligning its fifth connecting hole 410 with the first connecting hole 111 on the web of the channel steel and the fourth connecting hole 311 of the middle connector 300 within the installation gap 120. A long bolt is then passed through all three and tightened. In this way, the external fastener 400 and the middle connector 300 form a synchronous clamping of the web of the steel profile. At this time, the extended connecting hole 221 on the flange of the external fastener 400 can be used to connect transverse members 500 or diagonal members 600 perpendicular to the direction of the web of the support column, effectively supplementing the deficiency that the middle connector 300 can only provide connection points along the web direction.

[0038] By selectively installing central connectors 300 and external connectors 400 on the support columns at multiple elevation levels, and correspondingly arranging transverse members 500 and diagonal members 600, a stable spatial lattice support tower with strong anti-lateral displacement capability in multiple directions can be formed.

[0039] The independent support tower can be expanded longitudinally with more layers of support units as needed, referring to Embodiment 2, via the second end connector 200b to increase the tower height. Similarly, adjustable support seats 700 can be installed on the first end connectors 200a at the top and bottom of the tower for fine-tuning of the height.

[0040] Example 4: Overall Support Structure This embodiment is composed of multiple independent support towers as described in Embodiment 3, forming an overall support platform or support frame covering a large construction area.

[0041] Multiple independent support towers are arranged according to the construction area plan. Between adjacent support units of two adjacent support towers, horizontal members 500 and diagonal members 600 are selectively installed at the connection nodes at corresponding elevations (including the connection support 220 of the end connector 200, the middle connector 300, and the expansion connection hole 221 on the outer fastener 400), so that all support towers are connected into a whole in the horizontal direction, forming a spatial grid structure with overall coordinated force.

[0042] This modular expansion approach allows the support system to flexibly adapt to different planar dimensions, load distributions, and complex boundary conditions. All connections are made using bolts and pins, achieving fully prefabricated construction, high assembly and disassembly efficiency, high component standardization, reusability, and good economic benefits.

[0043] In summary, this utility model achieves a clear and flexible step-by-step modular expansion from "independent units" to "combined columns," to "stable towers," and finally to "integrated structures" through standardized support columns, clearly defined end connection components (first and second end connectors), central connectors that combine stabilization and connection functions, external fasteners providing multi-directional connection nodes, and various rods. This system structure features a clear force path, reliable and diverse node connections, excellent load-bearing capacity and stability, and a clear and convenient assembly logic, making it particularly suitable for construction support scenarios involving large spans, heavy loads, and rapid assembly and disassembly.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular steel heavy-duty support system, characterized in that, include: The support column (100) is composed of two parallel and spaced steel sections (110), with an installation gap (120) formed between the webs of the two steel sections (110), and a number of rows of first connecting holes (111) are provided on the webs of the steel sections (110) along the length direction. An end connection assembly (200) is provided at the end of the support column (100), including a connection body (210) and a plurality of connection supports (220) fixed to its side. The connection body (210) is embedded in the installation gap (120) and fixed between two steel sections (110) by fasteners. A pressure-bearing structure is provided between the end of the support column (100) and the connecting support (220) to form a pressure-bearing path that directly transmits the axial pressure of the support column to the end face of the connecting support (220). The middle connector (300) is embedded in the installation gap (120) to maintain the parallel spacing of the steel profiles (110) and provide an external rod connection point; Both the end connecting assembly (200) and the middle connecting member (300) are provided with expansion connecting holes (221) that can be detachably connected to external rods.

2. The modular steel heavy-duty support system according to claim 1, characterized in that: The steel section (110) is a channel steel, which is arranged back to back, and the first connecting hole (111) is a round hole or an oblong hole.

3. The modular steel heavy-duty support system according to claim 1, characterized in that: The pressure-bearing structure includes a pressure plate (112) fixed to the end of the steel section (110), the pressure plate (112) abutting against the top end face of the connecting support (220), and the planar dimension of the pressure plate (112) is not less than the cross-sectional dimension of the end of the steel section (110).

4. The modular steel heavy-duty support system according to claim 1, characterized in that: The connecting body (210) has a rectangular cross-section structure, the width of which matches the installation gap (120). The connecting body (210) includes at least one plug-in part (211). The plug-in part (211) extends from one end of the connecting body (210) and passes through the end face of the connecting support (220). The plug-in part (211) is provided with a second connecting hole (212) that matches the first connecting hole (111). The connecting support (220) has a U-shaped cross-section structure, the opening of which faces away from the connecting body (210), and an expansion connecting hole (221) is provided on its flange.

5. A modular steel heavy-duty support system according to claim 4, characterized in that: The end connection assembly (200) includes a first end connector (200a), which has a plug-in portion (211) and an end cap (230). The bottom ends of the connection body (210) and each of the connection supports (220) are fixed to the end cap (230), and the end cap (230) is provided with a third connection hole (231).

6. The modular steel heavy-duty support system according to claim 4, characterized in that: The end connection assembly (200) includes a second end connector (200b), whose connection support (220) is disposed in the middle of the connection body (210). The connection body (210) is provided with a plug-in part (211) at each end. The plug-in parts (211) at both ends are respectively embedded in the installation gap (120) of the two longitudinally connected support columns to realize the longitudinal connection of adjacent support columns.

7. The modular steel heavy-duty support system according to claim 1, characterized in that: The middle connector (300) is a box-type structure, the width of which matches the installation gap (120), including two parallel support plates (310) and a rib plate (320) vertically fixed between the two support plates (310); the support plate (310) is provided with a fourth connection hole (311) adapted to the first connection hole (111), the edge of the support plate (310) protrudes from the flange of the steel section (110), and is provided with an expansion connection hole (221).

8. A modular steel heavy-duty support system according to claim 7, characterized in that: It also includes an external fastener (400), which has a U-shaped cross-section structure. The web of the external fastener (400) is provided with a fifth connecting hole (410), and the flange is provided with an expansion connecting hole (221). The opening of the external fastener (400) faces away from the outer side of the web of the steel section (110), and fasteners pass through the fifth connecting hole (410), the first connecting hole (111), and the fourth connecting hole (311) at the same time, so as to realize the synchronous clamping of the web of the steel section (110) by the external fastener (400) and the middle connecting member (300).

9. A modular steel heavy-duty support system according to any one of claims 1-8, characterized in that: It also includes horizontal members (500) and diagonal members (600), each with pin holes at both ends, which can be detachably connected to the expansion connection holes (221) on the connecting support (220), the middle connecting member (300) and the outer buckle connecting member (400) by connecting pins to form a spatial grid support structure.

10. A modular steel heavy-duty support system according to claim 5, characterized in that: It also includes an adjustable support base (700), which includes an adjusting screw (720) and two adjusting bases (710) respectively sleeved at both ends of the adjusting screw (720); the adjusting base (710) includes a support base plate (711) and an adjusting sleeve (712) fixed thereon, the support base plate (711) is provided with a sixth connecting hole (713) matching the end plate (230), and is detachably connected to the end plate (230) by bolts; the upper and lower ends of the adjusting screw (720) have opposite thread directions, the thread is threaded with the adjusting sleeve (712), and a rotating arm (721) is fixed in the middle of the adjusting screw (720), and the adjusting base is driven to extend and retract synchronously through the rotating arm (721).

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