Steel hanger column installation structure

Abstract

This utility model discloses a convenient steel column installation structure, comprising: two connecting plates, which are respectively fixed to the bottom of the lower chord beam of the existing steel structure and the top of the steel column; two upper chord lugs, which are respectively arranged opposite to each other on both sides of the upper chord beam of the existing steel structure, with each upper chord lug corresponding to the installation position of the connecting plate along the length of the lower chord beam; two column lugs, which are respectively arranged opposite to each other on both sides of the top of the steel column; and two electric hoists, which are respectively arranged on both sides of the existing steel structure, with the fixed end and movable end of each electric hoist detachably connected to the upper chord lug and column lug on the same side. This utility model, based on the existing steel structure, achieves rapid positioning and installation of the steel column through the cooperation of electric hoists and lugs. The electric hoists can be quickly assembled and disassembled, and have a high turnover rate, solving the problems of high construction cost and low construction efficiency of traditional column installation methods under the limited construction space below the steel beam.

Description

Technical Field

[0001] This utility model relates to the field of suspended column construction technology. More specifically, this utility model relates to a steel suspended column installation structure that facilitates construction. Background Technology

[0002] In the construction of steel structures, to install steel structure columns, temporary supports are typically installed under the steel beams, or mechanical assistance (such as hoisting / lifting) is used to move the steel columns into position before connecting them. However, these methods have drawbacks. Since the installation height and location of different columns vary, the supports cannot be reused. Constructing temporary supports incurs significant additional material (support) and labor costs, and on-site support assembly takes up construction time, impacting the overall construction efficiency of the columns. Mechanical assistance requires additional equipment or the use of existing on-site lifting equipment, resulting in high equipment occupancy rates and additional equipment costs, potentially hindering existing on-site lifting operations. Furthermore, columns under beams generally require high clearance, preventing large machinery from accessing the area. Using external or top-down hoisting methods further complicates the installation process, increases the difficulty of using machinery, and necessitates increasing the tonnage of the hoisting equipment to meet the original hoisting requirements, leading to low construction efficiency and uncontrollable construction costs.

[0003] To solve the above problems, it is necessary to design a steel column installation structure that is easy to construct, so as to control construction costs while ensuring the efficiency of column construction. Summary of the Invention

[0004] The purpose of this utility model is to provide a convenient steel column installation structure. Based on the existing steel structure, the steel column is quickly positioned and installed by using an electric hoist in conjunction with the ear plate. The electric hoist can be quickly assembled and disassembled and has a high turnover rate. This solves the problems of high construction cost and low construction efficiency of traditional temporary support or mechanical support methods for installing columns under the limited construction space below the steel beam.

[0005] To achieve these objectives and other advantages according to this utility model, a convenient steel hanging column installation structure is provided, comprising: Two connecting plates are respectively fixed to the bottom of the lower chord beam of the existing steel structure and the top of the steel hanging column. The two connecting plates are provided with corresponding connecting holes and can be detachably connected through a connecting mechanism. Two upper chord lugs are arranged opposite each other on both sides of the upper chord beam of the existing steel structure. The installation position of any upper chord lug and the connecting plate in the length direction of the lower chord beam is fixed on the outer wall of the upper chord beam. Two hanging column lugs are arranged opposite each other on both sides of the connecting plate located at the top of the steel hanging column, and either hanging column lug is fixed to the outer side wall of the upper part of the steel hanging column. Two electric hoists are respectively installed on both sides of the existing steel structure. The fixed end and the movable end of any electric hoist are detachably connected to the upper chord ear plate and the hanging column ear plate on the same side, respectively. When the steel column is lifted to the designed installation position by the electric hoist, the two connecting plates fit together and their connecting holes are coaxially aligned.

[0006] Preferably, in the steel hanging column installation structure that facilitates construction, the upper chord ear plate includes two first vertical plates, which are arranged parallel to each other and spaced apart along the length direction of the upper chord beam; and a first horizontal bar, which is arranged between the two first vertical plates and fixedly connected to them. The hanging column lug plate includes two second vertical plates, which are arranged parallel to each other and spaced apart along the length direction of the corresponding connecting plate; a second horizontal bar is arranged between the two second vertical plates and fixedly connected to them.

[0007] Preferably, in the steel hanging column installation structure that facilitates construction, the first horizontal bar and the second horizontal bar on the same side are located on the same vertical plane, and the vertical plane where either the first horizontal bar or the second horizontal bar is located does not interfere with the existing steel structure.

[0008] Preferably, in the construction-friendly steel column installation structure, the electric hoist is detachably connected to the first horizontal bar and the second horizontal bar respectively via a ring buckle. The ring buckle includes an arc-shaped segment with mounting holes at both ends, which are coaxially spaced apart; and a straight segment located at the opening of the arc-shaped segment, with both ends of the straight segment threadedly connected to adjacent mounting holes.

[0009] Preferably, in the construction-friendly steel hanging column installation structure, the connecting plate connected to the lower chord beam is located at the centerline of the lower chord beam along its length, and the connecting plate connected to the steel hanging column is located at the axis of the steel hanging column. Furthermore, the distance between the first horizontal bar and the centerline of the upper chord beam along its length is equal to the distance between the second horizontal bar and the axis of the steel hanging column.

[0010] Preferably, the convenient steel column installation structure further includes two sets of limiting devices. Each set of limiting devices includes one or more limiting devices, which are spaced apart along the height direction between the upper chord ear plate and the column ear plate on the same side. Each limiting device includes a limiting plate, which is horizontally fixed to the web of the existing steel structure. The limiting plate is provided with a first vertical through hole, which is located on the line connecting the corresponding upper chord ear plate and the column ear plate, and communicates with the outside of the limiting plate through a second vertical through hole; a buckle is provided to close or open the opening of the second vertical through hole on the side of the limiting plate.

[0011] This utility model has at least the following beneficial effects: This utility model is based on the existing steel structure and uses an electric hoist in conjunction with ear plates to achieve rapid positioning and installation of steel columns. This installation structure makes full use of the existing building, and the electric hoist is only installed between the upper steel beam (upper chord beam) and the steel column, which can well adapt to the working conditions where the construction space of the column below the steel beam is limited. It can achieve smooth lifting and positioning of the column even under the condition of narrow installation space reserved below the column. At the same time, the electric hoist can be quickly disassembled and reused in the construction of different columns, which greatly improves the installation efficiency of the column and the turnover rate of the device. It solves the problems of high construction costs and low construction efficiency caused by the large amount of material used for temporary support measures, the high difficulty of operating large lifting equipment, and the high mechanical occupancy rate in traditional installation methods.

[0012] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a steel hanging column installation structure that is easy to construct according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the limiting device described in the above embodiments.

[0014] Explanation of reference numerals in the attached figures: 1. Connecting plate; 2. Connecting mechanism; 3. Upper chord ear plate; 4. Hanging column ear plate; 5. Fixed end of electric hoist; 6. Lifting sling; 7. Moving end of electric hoist; 8. First horizontal bar; 9. Second horizontal bar; 10. Ring buckle; 11. Limiting plate; 12. First vertical through hole; 13. Second vertical through hole; 14. Buckle; 15. Upper chord beam; 16. Web plate; 17. Lower chord beam; 18. Steel hanging column. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0016] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0017] like Figure 1-2 As shown, this utility model provides a convenient steel hanging column installation structure, including: Two connecting plates 1 are respectively fixed to the bottom of the lower chord beam 17 of the existing steel structure and the top of the steel hanging column 18. The two connecting plates 1 are provided with corresponding connecting holes and can be detachably connected through the connecting mechanism 2. Two upper chord lugs 3 are arranged opposite each other on both sides of the upper chord beam 15 of the existing steel structure. Each upper chord lug 3 is arranged and fixed on the outer side wall of the upper chord beam 15, corresponding to the installation position of the connecting plate 1 in the length direction of the lower chord beam 17. Two hanging column ear plates 4 are arranged opposite each other on both sides of the connecting plate 1 located at the top of the steel hanging column 18, and either hanging column ear plate 4 is fixed to the outer side wall of the upper part of the steel hanging column 18. Two electric hoists are respectively installed on both sides of the existing steel structure. The fixed end 6 and the movable end 7 of any electric hoist are detachably connected to the upper chord ear plate 3 and the hanging column ear plate 4 on the same side. When the steel column 18 is lifted to the designed installation position by the electric hoist, the two connecting plates 1 fit together and their connecting holes are coaxially aligned.

[0018] In the above technical solution, the existing steel structure includes an upper chord beam 15, a web plate 16, and a lower chord beam 17. The steel hanging column 18 is aligned and fixedly connected to the lower chord beam 17 of the existing steel structure through a connecting plate 1. The connection structure between the connecting plate, the lower chord beam, and the steel hanging column is the steel hanging column connection node. This utility model utilizes the existing steel structure (upper and lower chord steel beams) and uses a combination of ear plates and an electric hoist to lift the hanging column from the ground to the designed installation position (i.e., the position where the connection holes on the two connecting plates can be aligned). A connecting mechanism is used for node connection, thereby realizing the installation of the steel hanging column. This installation structure makes full use of the existing building, and the electric hoist is only installed between the upper steel beam (upper chord beam) and the steel column. It can adapt well to the working conditions where the construction space of the column below the steel beam is limited. It can achieve smooth lifting and positioning of the column even with narrow installation space reserved under the column. At the same time, the electric hoist can be quickly disassembled and assembled with the ear plate, so that it can be reused in the construction of different columns. This greatly improves the installation efficiency of the column and the turnover rate of the equipment. It solves the problems of high construction costs and low construction efficiency caused by the large amount of material used for temporary support measures, the high difficulty of operating large lifting equipment, and the high mechanical occupancy rate in traditional installation methods.

[0019] Specifically, the upper chord lugs and the hanging column lugs are welded to the upper chord beam and the steel hanging column, respectively. The welding process can be completed in the factory or during ground assembly. During the steel hanging column (lifting) construction, the electric hoist only needs to be connected to the lugs on both sides of the upper chord beam and the steel hanging column. This modular installation process greatly improves installation efficiency. The length of each lug can be adjusted in a timely manner according to the width of the upper and lower chord flanges and the width of the hanging column to ensure that the hoist sling does not scrape or collide with the lower chord steel beam during lifting, thus meeting normal lifting requirements. After the current steel hanging column is installed, both ends of the electric hoist can be quickly removed from the upper chord lugs and the hanging column lugs, allowing it to be moved to the next steel hanging column installation location for future construction.

[0020] Electric hoists are conventional lifting equipment, characterized by their small footprint and flexible installation location. The fixed end 5 of an electric hoist typically integrates a motor and a drum, while the movable end 7 is equipped with a hook and a pulley system. These are connected to the drum via a sling 6. The motor drives the drum to rotate, thus moving the hook up or down. In this embodiment, the electric hoist is a wire rope electric hoist, with its fixed end positioned near the upper chord lug and its movable end positioned near the lifting column lug.

[0021] During the lifting of the steel column, the rising progress on both sides of the column needs to be synchronously controlled by electric hoists to achieve balance. The speed is slowed down as the column approaches its connection point until the connecting plate on the column aligns with the connecting plate of the lower chord beam and the connection holes are aligned. Then, a connecting mechanism is used to secure and lock the two connecting plates. After installation, the connection between each electric hoist and its corresponding ear plate is released, and the column is moved to the next working surface. In this embodiment, the connection holes are bolt holes, and bolts can be used for the connecting mechanism. Furthermore, to ensure the synchronous lifting of the two electric hoists, an additional controller can be installed, electrically connected to both electric hoists to control their working status. The controller enables synchronous lifting / speed adjustment / stopping of the two electric hoists, further ensuring the smooth lifting of the steel column.

[0022] In another technical solution, the steel hanging column installation structure that facilitates construction includes an upper chord ear plate 3 comprising two first vertical plates, which are arranged parallel to each other and spaced apart along the length direction of the upper chord beam; and a first horizontal bar 8, which is arranged between the two first vertical plates and fixedly connected to them. The hanging column lug 4 includes two second vertical plates, which are arranged parallel to each other and spaced apart along the length direction of the corresponding connecting plates; a second horizontal bar 9 is arranged between the two second vertical plates and fixedly connected to them. The two connecting plates are connected in parallel and fitted together to achieve the alignment connection between the steel hanging column and the lower chord beam. Therefore, the length direction of the connecting plate on the steel hanging column is the same as the length direction of the connecting plate on the lower chord beam of the designed installation structure, i.e., the length direction of the existing steel structure (upper chord beam).

[0023] In the above technical solution, a stable ear plate connection structure is formed by two vertical plates and a horizontal bar, which provides a stable and reliable support and connection foundation for the electric hoist. The two ends of the electric hoist are connected to the first horizontal bar and the second horizontal bar, respectively.

[0024] In another technical solution, the aforementioned convenient steel column installation structure has the first horizontal bar 8 and the second horizontal bar 9 on the same side located on the same vertical plane, and the vertical plane containing either the first or second horizontal bar does not interfere with the existing steel structure. That is, the upper chord ear plate and the column ear plate both need to extend outwards to a position where there is no existing steel structure obstructing them, and the first and second horizontal bars on the same side are aligned to ensure that the electric hoist's sling can be vertically installed, facilitating control of the lifting distance (the lifting stroke of the electric hoist = the column's rising height) and allowing for precise control of the steel column's lifting progress.

[0025] In another technical solution, the steel hanging column installation structure that facilitates construction includes an electric hoist that is detachably connected to the first horizontal bar 8 and the second horizontal bar 9 via a ring buckle 10. The ring buckle 10 includes an arc-shaped segment with mounting holes at both ends, which are coaxially spaced; and a straight segment located at the opening of the arc-shaped segment, with both ends of the straight segment threadedly connected to adjacent mounting holes.

[0026] In the above technical solution, the ring buckle adopts a U-shaped shackle or a D-shaped shackle, the shackle body is the arc-shaped segment, and the matching pin or screw is the straight segment. The end of the electric hoist is fixedly connected to the arc-shaped segment of the corresponding ring buckle. When the straight segment is not installed, the arc-shaped segment is hung on the corresponding ear plate structure (first horizontal bar / second horizontal bar), and then the straight segments are inserted into the mounting holes in sequence to close the opening of the arc-shaped segment, thus realizing the quick connection between the end of the electric hoist and the corresponding ear plate. To disassemble, the straight segment is removed, and then the connection between the ring buckle and the first horizontal bar / second horizontal bar is released. Specifically, the fixed end of the electric hoist can be connected to the corresponding ring buckle by a hanging cable (the hanging cable is fixed at the bolt hole on the outside of the arc-shaped segment), or bolts can be used to fix the existing bolt holes on the fixed end (motor housing) of the electric hoist to the bolt holes on the outside of the arc-shaped segment of the ring buckle. The moving end of the electric hoist is equipped with a hook, which can be fixedly hooked to the inner ring surface of the arc segment of the corresponding ring buckle. Alternatively, without the ring buckle, the hook can be directly hung on the corresponding second horizontal bar to achieve a detachable connection.

[0027] Furthermore, by precisely designing the spacing between the two vertical plates to match the thickness of the ring buckle, the ring buckle can be accurately installed, preventing it from sliding along the length of the horizontal bar after installation. This further ensures the hoisting stability of the electric hoist and also facilitates the precise alignment of the steel column with the connecting plate on the lower chord beam.

[0028] In another technical solution, the steel hanging column installation structure that facilitates construction has a connecting plate that connects to the lower chord beam located at the centerline of the lower chord beam along its length, and a connecting plate that connects to the steel hanging column located at the axis of the steel hanging column. Furthermore, the distance between the first horizontal bar 8 and the centerline of the upper chord beam 15 along its length is equal to the distance between the second horizontal bar 9 and the axis of the steel hanging column 18.

[0029] Thus, the installation axis of the steel hanging column coincides with the vertical centerline of the existing steel structure, and the two upper chord lugs are symmetrically arranged on both sides of the upper chord beam. The two hanging column lugs are symmetrically arranged on both sides of the steel hanging column, ensuring that the steel hanging column can be lifted smoothly and accurately aligned with the design position.

[0030] The two connecting plates can be configured in various ways. In this embodiment, each connecting plate is vertically arranged and distributed on both sides of the centerline along the length of the lower chord beam, meaning the connecting surfaces of the two connecting plates are aligned with the centerline. After the connecting plates are aligned, their corresponding connecting holes are coaxially arranged in the horizontal direction. Alternatively, the connecting plates can also be horizontally arranged, with each plate horizontally positioned and symmetrical about the centerline. When the steel column approaches the lower chord beam, the two connecting plates are fitted together vertically, with the lower connecting plate extending outwards from the plane of the steel column. The connecting holes are vertically located at the ends of the connecting plates extending beyond the edge of the steel column. After the connecting plates are aligned, their corresponding connecting holes are coaxially arranged in the vertical direction. Bolts are screwed in from bottom to top to fix the two connecting plates.

[0031] In another technical solution, the steel hanging column installation structure that facilitates construction further includes two sets of limiting devices. Each set of limiting devices includes one or more limiting devices, which are spaced apart along the height direction between the upper chord ear plate and the hanging column ear plate on the same side. Each limiting device includes a limiting plate 11, which is horizontally fixed on the web plate 16 of the existing steel structure. The limiting plate 11 is provided with a first vertical through hole 12, which is located on the (straight line) connecting the corresponding upper chord ear plate 3 and the hanging column ear plate 4, and communicates with the outside of the limiting plate 11 through a second vertical through hole 13. A buckle 14 is provided, which is configured to close or open the opening of the second vertical through hole 13 on the side of the limiting plate 11.

[0032] In the above technical solution, the diameter of the first vertical perforation is larger than the diameter of the electric hoist's sling, and the opening width of the second vertical perforation on the side of the limiting plate is larger than the diameter of the electric hoist's sling. This allows the electric hoist's sling (wire rope / chain) to be inserted into the first vertical perforation through the second vertical perforation during installation, thus limiting and guiding the sling's movement direction and preventing severe swaying of the sling under harsh environmental conditions, which could affect the smooth alignment and installation of the steel column. The buckle is initially open, allowing the sling to smoothly enter the vertical perforation. After the sling is inserted into the first vertical perforation, the buckle closes, sealing the opening of the second vertical perforation on the side of the limiting plate. This prevents the sling from leaving the vertical perforation due to swaying during subsequent steel column installation, thus preventing the limiting mechanism from failing. In this embodiment, the buckle is disposed at the opening of the second vertical through hole on the side of the limiting plate, and includes two open ends. One end of the buckle is hinged to one of the open ends, and the other end of the buckle is detachably connected to the other open end (for example, a corresponding slot is provided at the open end, the slot is a structure that gradually narrows from the outside to the inside, and the end of the buckle is movably engaged with the slot).

[0033] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A steel hanging column installation structure that is easy to construct, characterized in that, include: Two connecting plates are respectively fixed to the bottom of the lower chord beam of the existing steel structure and the top of the steel hanging column. The two connecting plates are provided with corresponding connecting holes and can be detachably connected through a connecting mechanism. Two upper chord lugs are arranged opposite each other on both sides of the upper chord beam of the existing steel structure. The installation position of any upper chord lug and the connecting plate in the length direction of the lower chord beam is fixed on the outer wall of the upper chord beam. Two hanging column lugs are arranged opposite each other on both sides of the connecting plate located at the top of the steel hanging column, and either hanging column lug is fixed to the outer side wall of the upper part of the steel hanging column. Two electric hoists are respectively installed on both sides of the existing steel structure. The fixed end and the movable end of any electric hoist are detachably connected to the upper chord ear plate and the hanging column ear plate on the same side, respectively. When the steel column is lifted to the designed installation position by the electric hoist, the two connecting plates fit together and their connecting holes are coaxially aligned.

2. The steel hanging column installation structure for convenient construction as described in claim 1, characterized in that, The upper chord ear plate includes two first vertical plates, which are arranged parallel to each other and spaced apart along the length of the upper chord beam; and a first horizontal bar, which is arranged between the two first vertical plates and fixedly connected to them. The hanging column lug plate includes two second vertical plates, which are arranged parallel to each other and spaced apart along the length direction of the corresponding connecting plate; a second horizontal bar is arranged between the two second vertical plates and fixedly connected to them.

3. The convenient steel hanging column installation structure as described in claim 2, characterized in that, The first and second horizontal bars on the same side are located on the same vertical plane, and the vertical plane containing either the first or second horizontal bar does not interfere with the existing steel structure.

4. The steel hanging column installation structure for convenient construction as described in claim 2, characterized in that, The electric hoist is detachably connected to the first horizontal bar and the second horizontal bar via ring buckles. The ring buckle includes an arc-shaped segment with mounting holes at both ends, which are coaxially spaced apart; and a straight segment located at the opening of the arc-shaped segment, with both ends of the straight segment threadedly connected to adjacent mounting holes.

5. The steel hanging column installation structure for convenient construction as described in claim 2, characterized in that, The connecting plate connected to the lower chord beam is located at the centerline of the lower chord beam along its length, and the connecting plate connected to the steel hanging column is located at the axis of the steel hanging column. The distance between the first horizontal bar and the centerline of the upper chord beam along its length is equal to the distance between the second horizontal bar and the axis of the steel hanging column.

6. The steel hanging column installation structure for convenient construction as described in claim 1, characterized in that, It also includes two sets of limiting devices. Each set of limiting devices includes one or more limiting devices, which are spaced apart along the height direction between the upper chord ear plate and the hanging column ear plate on the same side. Each limiting device includes a limiting plate, which is horizontally fixed to the web of the existing steel structure. The limiting plate is provided with a first vertical through hole, which is located on the line connecting the corresponding upper chord ear plate and the hanging column ear plate, and communicates with the outside of the limiting plate through a second vertical through hole; a buckle, which is configured to close or open the opening of the second vertical through hole on the side of the limiting plate.

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