A construction installation structure of a bundled steel for a stand

Abstract

The utility model discloses a kind of for column package steel construction installation structure, including four strip angle steels, fastening assembly and several steel plates;Strip angle steel is set along vertical direction extension, four strip angle steels are respectively arranged in the four corners of column, and fastening assembly is used to fix four strip angle steels in the four corners of column;Two ends of steel plate are respectively connected with adjacent two strip angle steels, and several steel plates are set apart along the extension direction of strip angle steel.Through the cooperation of four strip angle steels and fastening assembly, the adjustable fixing of the four corners of column is realized, and the steel frame structure is formed by combining the interval setting steel plate, which solves the problem that the angle steels at different positions in the traditional process are difficult to cooperate with each other, and the installation process of the steel plate and the angle steel needs to be adjusted constantly, and the installation is not convenient, which improves the adjustability and stability of the installation structure, adapts to the column with different cross-sectional dimensions, ensures that the steel frame structure composed of strip angle steel and steel plate is closely attached to the surface of the column, and improves the reinforcing effect.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a steel-clad construction and installation structure for columns. Background Technology

[0002] As urban buildings age, some older structures, particularly columns, are experiencing a decline in load-bearing capacity due to limitations in early construction standards, material degradation, or long-term load-bearing. Professional testing and evaluation have revealed frequent issues such as insufficient concrete strength, cross-sectional damage, and aging reinforcement in these columns, resulting in actual load-bearing capacity significantly lower than current safety standards and posing a risk of structural instability or even collapse. To eliminate these safety hazards, reinforcement and strengthening of these defective columns are urgently needed.

[0003] Currently, the steel-plate reinforcement method is widely used in the reinforcement and maintenance of load-bearing columns due to its high efficiency and reliability. This technology primarily involves wrapping the column with a box-shaped frame welded from steel plates, allowing the outer steel plate to work in tandem with the original column structure to improve overall load-bearing capacity. However, significant technical challenges exist in its implementation: how to accurately construct a three-dimensional steel plate frame system that fits tightly against the column surface under complex construction site conditions. Because existing columns often exhibit geometrical deviations, and on-site operating space is limited, the cutting, positioning, assembly, welding, and gap control of the steel plates in traditional processes are extremely difficult, easily leading to cavities or loose contact between the frame and the column, severely affecting load transfer efficiency and reinforcement reliability.

[0004] Therefore, existing steel reinforcement technology still faces problems such as low construction accuracy, complex procedures, and poor quality control, and there is an urgent need to develop more efficient and adaptable construction methods and supporting structures. Utility Model Content

[0005] In response to the problems raised in the background art, the purpose of this utility model is to propose a steel-clad construction and installation structure for columns, which has the advantages of improving the adjustability and stability of the installation structure and enhancing the reinforcement effect.

[0006] To achieve this objective, the present invention adopts the following technical solution: A steel-clad construction and installation structure for columns includes four strip angle steels, fastening components, and several steel plates; The strip angle steel extends vertically, and four strip angle steels are respectively set at the four corners of the column. The fastening assembly is used to fix the four strip angle steels to the four corners of the column. The two ends of the steel plate are respectively connected to two adjacent strip angle steels, and several steel plates are arranged at intervals along the extension direction of the strip angle steels.

[0007] Preferably, the fastening assembly is composed of two fastening brackets assembled together; The fastening bracket includes a first fastening rod, a second fastening rod, and a slider. One end of the first fastening rod is hinged to one end of the second fastening rod. The slider has a first through hole along the X direction and a second through hole along the Y direction. The X direction and the Y direction are perpendicular to each other. The first through hole and the second through hole are not connected to each other. The slider is slidably disposed on the other end of the first fastening rod through the first through hole. The other end of the second fastening rod of one of the fastening brackets is inserted into the second through hole of the slider of the other fastening bracket.

[0008] Preferably, the slider is further provided with a first limiting threaded hole and a second limiting threaded hole. The first limiting threaded hole is perpendicular to and communicates with the first through hole, and the second limiting threaded hole is perpendicular to and communicates with the second through hole. Limiting bolts are respectively installed in the first limiting threaded hole and the second limiting threaded hole.

[0009] Preferably, the limiting bolt includes a flat head, a threaded portion, and a tapered tail.

[0010] Preferably, the outer side of the strip angle steel is adjustablely provided with magnetic brackets, and the two magnetic brackets on the same side are used to support the bottom of both ends of the steel plate. The two ends of the steel plate are respectively welded to the ends of the strip angle steel at both ends.

[0011] Preferably, an epoxy resin layer is provided between the steel plate and the column.

[0012] Preferably, the upper edge of the steel plate, the lower edge of the steel plate, and the side edge of the strip angle steel are all provided with edge sealing structures on the surface of the column.

[0013] Compared with the prior art, one of the above technical solutions has the following beneficial effects: The four corners of the column are adjustable and fixed by using four strip angle steels and fastening components. Combined with the spaced steel plates, a stable steel frame structure is formed. This solves the problems of traditional processes, such as the difficulty in matching angle steels at different positions, the need for constant adjustments during the installation of steel plates and angle steels, and the inconvenience of installation. It has the advantages of improving the adjustability and stability of the installation structure, adapting to columns with different cross-sectional dimensions, ensuring that the steel frame structure composed of strip angle steels and steel plates fits tightly with the surface of the column, and improving the reinforcement effect. Attached Figure Description

[0014] Figure 1 This is a top view of one embodiment of the present invention. Figure 2 This is a side sectional view of one embodiment of the present invention; Figure 3 This is a schematic diagram of the fastening bracket according to one embodiment of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of a limiting bolt according to an embodiment of the present invention.

[0015] The components include: column 0, strip angle steel 1, fastening assembly 2, fastening bracket 20, first fastening rod 21, second fastening rod 22, slider 23, first through hole 231, second through hole 232, first limiting threaded hole 233, second limiting threaded hole 234, limiting bolt 24, flat head 241, screw part 242, conical tail part 243, steel plate 3, and magnetic bracket 4. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0018] Furthermore, the terms "first," "second," and "third" 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. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0019] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The following is in conjunction with the appendix Figures 1 to 5The technical solution of this utility model will be further illustrated through specific implementation methods.

[0021] A steel-clad construction and installation structure for columns includes four strip angle steels 1, fastening components 2, and several steel plates 3; The strip angle steel 1 extends vertically, and four strip angle steels 1 are respectively set at the four corners of the column 0. The fastening assembly 2 is used to fix the four strip angle steels 1 to the four corners of the column 0. The two ends of the steel plate 3 are respectively connected to two adjacent strip angle steels 1, and several steel plates 3 are arranged at intervals along the extension direction of the strip angle steels 1.

[0022] The strip angle steel 1 refers to a long strip of steel with an L-shaped cross-section, whose two perpendicular vertical edges are tightly attached to the two perpendicular sides of the corner of the column 0. The fastening assembly 2 is a connecting device used to tightly fit the four strip angle steels 1 to the column 0. Specifically, it wraps around the four strip angle steels 1 and the column 0 from the outside, forming a multi-point limiting structure to ensure a tight fit between the strip angle steels 1 and the corner of the column 0. Since the strip angle steels 1 extend vertically, aligning with the height of the column 0, a stable longitudinal support system is established, creating a reliable foundation for the subsequent installation of the steel plate 3. The two ends of the steel plate 3 along its length are connected to the strip angle steels 1 located at two adjacent corners; and the steel plates 3, arranged at intervals along the vertical direction, form a multi-layered transverse constraint, which, together with the longitudinal strip angle steels 1, constitutes the reinforced steel frame structure of the column 0, enhancing overall rigidity.

[0023] Specifically, four strip angle steels 1 are precisely fixed to the four corners of the column 0 using fastening components 2, forming a vertical foundation support framework. Adjacent strip angle steels 1 are connected by transverse steel plates 3, forming a closed ring support structure. The steel plates 3 are spaced apart along the height of the column 0, forming multi-layered circumferential constraint units. The strip angle steels 1 act as the main load-bearing components, bearing the axial load, while the transversely arranged steel plates 3 act as secondary load-bearing components, dispersing transverse stress. After the fastening components 2 complete the positioning and fixing of the strip angle steels 1 in the initial stage of construction, the subsequent installation of the steel plates 3 only requires connecting them along the preset positions of the strip angle steels 1, greatly simplifying the positioning process.

[0024] Compared to existing technologies, traditional processes employ on-site welding of the entire steel frame, requiring multiple adjustments to the frame dimensions to accommodate column deviations. This solution uses precisely positioned strip angle steel 1 at the corners of the columns 0, and secures the four strip angle steel 1 with fastening components 2, establishing the longitudinal skeleton of the steel frame structure and providing a stable foundation for the subsequent installation of the transverse steel plates 3. The precise positioning of the longitudinal strip angle steel 1 ensures the consistency of the transverse steel plate 3 installation position, and the vertically spaced steel plates 3 allow for flexible adjustment of the spacing according to the column dimensions.

[0025] This invention achieves precision control and efficiency improvement in the construction of steel-encased column reinforcement. The strip angle steel 1 and the fastening assembly 2 form a stable longitudinal positioning system, ensuring the accuracy of the steel plate 3 installation reference. The spaced transverse steel plates 3 form a uniformly distributed circumferential constraint, enhancing the coordinated load-bearing performance of the steel frame structure and the column. The limiting and wrapping of the four strip angle steels 1 by the fastening assembly 2 reduces the number of manual adjustments required during on-site assembly, significantly improving construction efficiency and the stability of construction quality.

[0026] Furthermore, the fastening assembly 2 is composed of two fastening brackets 20 assembled together; The fastening bracket 20 includes a first fastening rod 21, a second fastening rod 22, and a slider 23. One end of the first fastening rod 21 is hinged to one end of the second fastening rod 22. The slider 23 has a first through hole 231 along the X direction and a second through hole 232 along the Y direction. The X direction and the Y direction are perpendicular to each other. The first through hole 231 and the second through hole 232 are not connected to each other. The slider 23 is slidably disposed on the other end of the first fastening rod 21 through the first through hole 231. The other end of the second fastening rod 22 of one of the fastening brackets is inserted into the second through hole 232 of the slider of the other fastening bracket.

[0027] The hinge between the first fastening rod 21 and the second fastening rod 22 means that they are connected by a revolute joint, specifically by a pin connection, allowing the two rods to fold or unfold around the hinge point to adapt to different column sizes and operating spaces. The first through hole 231 of the slider 23 is set along the X direction, meaning its axis is parallel to the X direction, and the slider 23 slides on the first fastening rod 21 through this hole. The second through hole 232 is set along the Y direction, meaning its axis is parallel to the Y direction, and it allows the second fastening rod 22 of another fastening bracket to be inserted. When the second fastening rods 22 of each of the two fastening brackets 20 are inserted into the second through hole 232 of the other slider 23, the fastening assembly 2 is assembled.

[0028] Specifically, two symmetrically arranged fastening brackets 20 are interlocked with each other's sliders 23 via second fastening rods 22, forming a closed constraint loop. The hinge point between the first fastening rod 21 and the second fastening rod 22 allows the fastening brackets 20 to be folded into a compact state for transport. After unfolding, the sliding position of the slider 23 on the first fastening rod 21 is adjusted to match the actual size of the column. When the second fastening rod 22 is inserted into the second through hole 232 of the slider of the other fastening bracket 20, the sliding adjustment in the X direction and the insertion locking in the Y direction form an orthogonal constraint. The cross-interlocking structure synchronously generates clamping force around the column 0, forcing the strip angle steel 1 to fit tightly against the surface of the column 0.

[0029] Furthermore, the slider 23 is also provided with a first limiting threaded hole 233 and a second limiting threaded hole 234. The first limiting threaded hole 233 is perpendicular to and communicates with the first through hole 231, and the second limiting threaded hole 234 is perpendicular to and communicates with the second through hole 232. Limiting bolts 24 are respectively installed in the first limiting threaded hole 233 and the second limiting threaded hole 234.

[0030] The first limiting threaded hole 233 is a threaded hole that passes through the slider 23 and is orthogonal to the axis of the first through hole 231. The first limiting threaded hole 233 is used to screw in the limiting bolt 24 to press the first fastening rod 21 located in the first through hole 231, thereby eliminating the sliding clearance of the slider 23 along the first fastening rod 21. The second limiting threaded hole 234 is a threaded hole that passes through the slider 23 and is orthogonal to the axis of the second through hole 232. The second limiting threaded hole 234 is used to screw in the limiting bolt 24 to press the second fastening rod located in the second through hole 232, thereby restricting the axial movement of the second fastening rod 22 within the second through hole 232.

[0031] Specifically, during the assembly of the fastening component 2, the second fastening rod 22 of one fastening bracket is inserted into the second through hole 232 of the slider of another fastening bracket 20, achieving the initial assembly of the fastening component 2 and forming a closed-loop structure. To accommodate the size of the column 0, the slider 23 is adjusted to slide on the first fastening rod 21 and the second fastening rod 22, so that the inner side of the annular fastening component 2 is tightly attached to the outer side of the four strip angle steels 1, thereby achieving the positioning and fixing of the strip angle steels 1. At this time, the limiting bolt 24 is screwed into the first limiting threaded hole 233, so that the end of the limiting bolt 24 is tightly against the surface of the first fastening rod 21, and the limiting bolt 24 is screwed into the second limiting threaded hole 234, so that the end of the limiting bolt 24 abuts against the surface of the second fastening rod 22. Both fastening rods are limited in their sliding within the through hole by the limiting bolt 24. This double locking mechanism eliminates the degree of freedom of the fastening component in three-dimensional space through mechanical contact, avoiding component displacement caused by construction vibration or load changes.

[0032] Furthermore, the limiting bolt 24 includes a flat head 241, a threaded portion 242, and a tapered tail portion 243.

[0033] The flat head 241 is a structure with a flat contact surface at the top of the limiting bolt 24, which facilitates the application of torque by increasing the contact area with the tool. The screw portion 242 is a cylindrical structure with external threads, which achieves clamping force adjustment by forming a threaded engagement with the limiting threaded holes (first limiting threaded hole 233 and second limiting threaded hole 234) on the slider 23. The tapered tail portion 243 is a structure with a gradually tapering end of the limiting bolt 24, which enhances the locking effect on the fastening rods (first fastening rod 21 and second fastening rod 22) through a wedging action.

[0034] When the limiting bolt 24 is screwed into the first limiting threaded hole 233 of the slider 23, the screw portion 242 forms a stable threaded connection with the threaded hole, and the flat head 241 achieves precise screwing control by applying torque through a tool (or without a tool). During the tightening process, the tapered tail portion 243 gradually wedges into the surface of the first fastening rod 21, forming a mechanical locking structure. When the limiting bolt acts on the second fastening rod 22 in the same manner, the two limiting mechanisms form a cross constraint, effectively resisting bolt retraction caused by lateral vibration.

[0035] Furthermore, the outer side of the strip angle steel 1 is adjustablely provided with magnetic suction brackets 4, and the two magnetic suction brackets 4 on the same side are used to support the bottom of both ends of the steel plate 3. The two ends of the steel plate 3 are respectively welded to the ends of the strip angle steel 1 at both ends.

[0036] The magnetic bracket 4 is magnetically attached to the outside of the strip angle steel 1, and its height can be adjusted along the length of the strip angle steel 1. Two magnetic brackets 4 on the same side of the column 0 support the bottom ends of the steel plate 3, respectively. The height of the magnetic brackets 4 is adjusted to keep the steel plate 3 horizontal. After the two ends of the steel plate 3 are aligned with the ends of the strip angle steel 1 under the support of the magnetic brackets 4, they are welded together to form a rigid connection. After welding, the magnetic brackets 4 can be retained as auxiliary supports or removed for reuse.

[0037] Furthermore, an epoxy resin layer is provided between the steel plate 3 and the column 0.

[0038] The epoxy resin layer refers to a polymer material layer with high adhesion and flowability. Specifically, it can be formed by mixing two-component epoxy resin adhesive and then coating and curing it. The epoxy resin adhesive fills the space between the steel plate 3 and the column 0. In its liquid state, the material can penetrate into the micropores on the surfaces of the steel plate 3 and the column 0. After curing, it forms a rigid interface layer, thereby eliminating the assembly gap between the two and preventing voids.

[0039] Furthermore, the upper edge of the steel plate 3, the lower edge of the steel plate 3, and the side edge of the strip angle steel 1 are all provided with edge sealing structures on the surface of the column 0.

[0040] The edge sealing structure refers to the sealing component covering the contact edge between the steel plate 3 and the column 0. This can be achieved using rubber sealing strips or structural adhesive, filling the transition gap between the steel plate and the column to form a continuous, closed, and smooth transition boundary. Specifically, the edge sealing structures on the upper and lower edges of the steel plate 3 prevent the epoxy resin layer from overflowing in the vertical direction and block external contaminants from penetrating the mating surface. The edge sealing structure on the side edges of the strip angle steel 1 eliminates the assembly gap between the strip angle steel 1 and the surface of the column 0, ensuring a tight fit between the angle steel and the column.

[0041] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A steel-clad construction and installation structure for columns, characterized in that: It includes four strip angle steels, fastening components, and several steel plates; The strip angle steel extends vertically, and four strip angle steels are respectively set at the four corners of the column. The fastening assembly is used to fix the four strip angle steels to the four corners of the column. The two ends of the steel plate are respectively connected to two adjacent strip angle steels, and several steel plates are arranged at intervals along the extension direction of the strip angle steels.

2. The steel-clad construction and installation structure for columns according to claim 1, characterized in that: The fastening assembly is composed of two fastening brackets assembled together; The fastening bracket includes a first fastening rod, a second fastening rod, and a slider. One end of the first fastening rod is hinged to one end of the second fastening rod. The slider has a first through hole along the X direction and a second through hole along the Y direction. The X direction and the Y direction are perpendicular to each other. The first through hole and the second through hole are not connected to each other. The slider is slidably disposed on the other end of the first fastening rod through the first through hole. The other end of the second fastening rod of one of the fastening brackets is inserted into the second through hole of the slider of the other fastening bracket.

3. The steel-clad construction and installation structure for columns according to claim 2, characterized in that: The slider is also provided with a first limiting threaded hole and a second limiting threaded hole. The first limiting threaded hole is perpendicular to and connected to the first through hole, and the second limiting threaded hole is perpendicular to and connected to the second through hole. Limiting bolts are respectively installed in the first limiting threaded hole and the second limiting threaded hole.

4. The steel-clad construction and installation structure for columns according to claim 3, characterized in that: The limiting bolt includes a flat head, a threaded part, and a tapered tail.

5. The steel-clad construction and installation structure for columns according to claim 1, characterized in that: The outer side of the strip angle steel is adjustablely provided with magnetic brackets. Two magnetic brackets on the same side are used to support the bottom of both ends of the steel plate. The two ends of the steel plate are respectively welded to the ends of the strip angle steel at both ends.

6. The steel-clad construction and installation structure for columns according to claim 5, characterized in that: An epoxy resin layer is provided between the steel plate and the column.

7. A steel-clad construction and installation structure for columns according to claim 6, characterized in that: The upper edge of the steel plate, the lower edge of the steel plate, and the side edge of the strip angle steel are all provided with edge sealing structures on the surface of the column.

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