A portal steel frame single-column stabilizing device and method

Abstract

The present application relates to the field of stabilizing device, disclose a kind of door type steel frame single stable device and method, door type steel frame single stable device includes side steel column in both sides, two side steel columns are oppositely fixedly installed with steel beam, two steel beams are fixedly connected, and middle steel column is fixedly installed between the junction of two steel beams, and the included angle of middle steel column and side steel column and steel beam is equipped with telescopic support mechanism respectively;Telescopic support mechanism is communicated with liquid supply mechanism to support by supplying liquid.The sliding fit of communication pipe and indicating pipe is self-adapting support, the inclination direction and degree of steel column are determined by the relative position change of the two, and the overturning risk is visually monitored and early warned;Pressure stabilizing piece box is arranged at the bottom of steel column, and liquid supply mechanism has counterweight, constructs additional gravity support system at the bottom, improves lateral anti-overturning performance;Threaded rod drives extrusion plate to pressurize and seal liquid, and the incompressibility of liquid is used to realize the synchronous elongation reinforcement of each inclined strut, and the uneven stress defect of multi-point separate adjustment is improved.

Description

Technical Field

[0001] This invention relates to the field of stabilization device technology, and more specifically, to a portal steel frame single-frame stabilization device and method. Background Technology

[0002] Portal steel frame lightweight steel structures, with their advantages of light weight, high degree of industrialization, good prefabrication, and economical cost, have been widely used in construction projects such as industrial plants and warehouses. They are one of the most popular structural forms in the field of lightweight steel structures at present. In recent years, a lot of research has been carried out at home and abroad on portal steel frame hoisting construction technology. The research focuses mainly on numerical simulation of hoisting conditions, optimization of hoisting point layout, control of construction accuracy, improvement of traditional processes and digital-assisted construction, and has gradually formed a mature construction system based on single-machine hoisting, double-machine lifting and overall lifting.

[0003] Currently, after a single portal steel frame is hoisted into place, the bottom of the steel column and the foundation support often have an initial gap or axial offset due to pre-embedded deviations and hoisting alignment errors. This results in the steel frame still being in a geometrically variable state with weak lateral stiffness after being in place. To suppress the risk of structural overturning, construction workers need to climb to the corner of the steel frame to weld temporary diagonal support members on-site to form a temporary stabilizing system. However, this method is a typical high-altitude hot work operation. The narrow working space and restricted operating posture not only increase the safety risks of falling from height and welding burns, but also make it difficult to guarantee the welding quality and installation of temporary supports due to the unfavorable high-altitude environment for fine welding, resulting in low construction efficiency. Summary of the Invention

[0004] This invention provides a single-frame stabilization device and method for portal steel frames, solving the technical problem of high-altitude installation being unfavorable in related technologies.

[0005] This invention provides a portal steel frame single-frame stabilization device, including side steel columns on both sides, steel beams fixedly installed on opposite sides of the two side steel columns, the two steel beams fixedly connected, a central steel column fixedly installed between the two steel beams, and telescopic support mechanisms provided at the angles between the central steel column and the side steel columns and steel beams respectively. The telescopic support mechanism is connected to a liquid supply mechanism for liquid supply support; The liquid supply mechanism includes a connecting pipe, an indicator pipe, and a pressure stabilizer. One end of the connecting pipe is connected to the telescopic support mechanism, and the other end slides into the interior of the indicator pipe. The end of the indicator pipe away from the connecting pipe is connected to the pressure stabilizer. Both the telescopic support mechanism and the liquid supply mechanism are filled with liquid. The liquid pressure is adjusted by the pressure stabilizer to drive the telescopic support mechanism to extend adaptively for self-stabilization. The relative position of the connecting pipe and the indicator pipe after stabilization is used to indicate the tilt.

[0006] As a further optimization of the present invention, the telescopic support mechanism includes a frame, a sleeve, a movable tube and a slider. The frame is slidably sleeved on the steel beam and the slider is slidably sleeved on the corresponding side steel column or middle steel column. One end of the sleeve is closed and rotatably connected to the frame, while the other end allows the moving tube to slide in. The end of the moving tube away from the sleeve is rotatably connected to the slider, and the slider has a chamber inside to communicate with the moving tube.

[0007] As a further optimization of the present invention, one end of the connecting tube is connected to the cavity inside the slider, and the other end slides into the interior of the indicator tube, with the end of the indicator tube away from the connecting tube connected to the voltage stabilizer.

[0008] As a further optimization of the present invention, the voltage stabilizer includes a housing, an extrusion plate and a threaded rod. The housing is connected to an indicator tube, the extrusion plate is slidably sleeved inside the housing, and the threaded rod is threadedly sleeved on the housing, with the insertion end of the threaded rod rotatably connected to the extrusion plate.

[0009] As a further optimization of the present invention, the interior of the box, the connecting tube, the indicator tube, the sleeve, the moving tube and the slider are all filled with liquid. By rotating the threaded rod, the extrusion plate is driven to extrude the liquid, thereby driving the sleeve and the moving tube, the connecting tube and the indicator tube to extend adaptively.

[0010] As a further optimization of the present invention, the box located at the central steel column is fixed to the front and rear sides of the bottom of the central steel column to strengthen the support strength at this location, and the box located at the side steel column is set on the side closer to the side steel column to jointly form a bottom support in the lateral position.

[0011] As a further optimization of the present invention, the card frame is divided into two equal halves, which are connected by bolts and nuts.

[0012] As a further optimization of the present invention, the slider is divided into two equal halves, which are connected by bolts and nuts.

[0013] As a further optimization of the present invention, when the pressure stabilizing component is located at the central steel column, it is disposed on the front and rear sides of the bottom of the central steel column, and when the pressure stabilizing component is located at the side steel column, it is disposed on the side closer to the side steel column, so as to jointly form a lateral support system.

[0014] A method for stabilizing a single portal frame, employing the aforementioned stabilizing device for a single portal frame, includes the following steps: Place the card frame onto the steel beam, and place the slider onto the corresponding side or middle steel column to complete the installation of the telescopic support mechanism. Connect the connecting pipe of the liquid supply mechanism to the internal chamber of the slider, fix the box in the corresponding position, and complete the installation of the liquid supply mechanism. Vertically hoist each portal steel frame segment to connect the bottom of the side steel columns and the middle steel columns to the corresponding mounting bases; Rotating the threaded rod drives the extrusion plate to extrude liquid inside the box, causing the sleeve, moving tube, connecting tube, and indicating tube to extend adaptively, forming a self-stabilizing support for the single portal steel frame. By observing the relative positional changes of the indicator tube and the connecting tube, the bending direction and structural stability of the side steel column and the central steel column are monitored.

[0015] The beneficial effects of this invention are as follows: 1. The portal steel frame single-span stabilization device of the present invention, by setting a sliding fit structure between the connecting pipe and the indicating pipe, can realize the adaptive support of hydraulic drive, and can directly judge the tilt direction and degree of the steel column in real time by observing the relative position change of the two. It can realize continuous visual monitoring of the structural stability without additional configuration of sensors or measuring equipment, which is convenient for timely warning of overturning risk.

[0016] 2. The single-frame stabilization device for portal steel frame described in this invention arranges the pressure stabilizing component's housing on the front and rear sides of the bottom of the steel column or on one side close to the side steel column, so that the liquid supply mechanism serves as both a hydraulic power source and a counterweight stabilization function, forming an additional gravity support system at the bottom of the steel frame, thereby enhancing the lateral anti-overturning capability of the bottom of the portal steel frame.

[0017] 3. The single-frame stabilizing device for portal steel frame described in this invention applies pressure to the sealed liquid by rotating the threaded rod to drive the extrusion plate. It utilizes the incompressibility of the liquid to synchronously drive the sleeve and moving pipe, as well as the connecting pipe and the indicator pipe, to adaptively extend, thereby reinforcing the synchronous diagonal bracing at each angle of the rigid frame. This solves the problem of uneven force distribution caused by adjusting each support point separately in the traditional method. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a portal steel frame single-frame stabilization device proposed in this invention.

[0019] Figure 2 This is a partial structural schematic diagram of a portal steel frame single-span stabilization device proposed in this invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the box in a portal steel frame single-frame stabilization device proposed in this invention.

[0021] Figure 4 This is a top view schematic diagram of the slider structure in a portal steel frame single-frame stabilization device proposed in this invention.

[0022] In the picture: 1. Side steel columns; 2. Steel beams; 3. Central steel column; 4. Telescopic support mechanism; 41. Frame; 42. Sleeve; 43. Moving tube; 44. Slider; 5. Liquid supply mechanism; 51. Connecting pipe; 52. Indicating pipe; 53. Box body; 54. Squeezing plate; 55. Threaded rod. Detailed Implementation

[0023] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0024] Example 1 like Figures 1 to 4 As shown in the embodiment of the present invention, a cableless wind rope self-stabilizing device for single-frame hoisting of a portal steel frame includes side steel columns 1 located on both sides. Steel beams 2 are fixedly installed on opposite sides of the two side steel columns 1. The two steel beams 2 are fixedly connected to each other. A central steel column 3 is fixedly installed between the connection points of the two steel beams 2, thereby forming the main structure of the portal steel frame.

[0025] Telescopic support mechanisms 4 are provided at the angles formed between the side steel column 1 and the steel beam 2, and at the angles formed between the middle steel column 3 and the steel beam 2. The telescopic support mechanisms 4 are set at the oblique positions at each angle to achieve diagonal bracing reinforcement of the steel frame structure.

[0026] The telescopic support mechanism 4 is connected to the liquid supply mechanism 5 for liquid supply support. The liquid supply mechanism 5 includes a connecting pipe 51, an indicator pipe 52, and a pressure stabilizer. One end of the connecting pipe 51 is connected to the telescopic support mechanism 4, and the other end slides into the interior of the indicator pipe 52. The end of the indicator pipe 52 away from the connecting pipe 51 is connected to the pressure stabilizer. Both the telescopic support mechanism 4 and the liquid supply mechanism 5 are filled with liquid, which is anti-wear hydraulic oil. The pressure stabilizer adjusts the liquid pressure to drive the telescopic support mechanism 4 to extend adaptively, so as to form a cable-free wind rope self-stabilizing support for a single portal steel frame.

[0027] like Figure 2 As shown, specifically, the telescopic support mechanism 4 includes a frame 41, a sleeve 42, a movable tube 43, and a slider 44. The frame 41 is slidably mounted on the steel beam 2, and the slider 44 is slidably mounted on the corresponding side steel column 1 or middle steel column 3. One end of the sleeve 42 is closed and rotatably connected to the frame 41 through a pivot, while the other end allows the movable tube 43 to slide into it. The end of the movable tube 43 away from the sleeve 42 is rotatably connected to the slider 44 through a pivot. The slider 44 has a cavity inside to communicate with the movable tube 43.

[0028] Furthermore, one end of the connecting pipe 51 is connected to the chamber inside the slider 44, and the other end slides into the interior of the indicator pipe 52. The end of the indicator pipe 52 away from the connecting pipe 51 is connected to the pressure stabilizer. The liquid supply mechanism 5 and the telescopic support mechanism 4 form a closed liquid passage.

[0029] like Figure 3 As shown, specifically, the pressure stabilizing component includes a housing 53, a pressing plate 54, and a threaded rod 55. The housing 53 is connected to the indicator tube 52. The pressing plate 54 is slidably sleeved inside the housing 53. The threaded rod 55 is threadedly sleeved on the housing 53, and the insertion end of the threaded rod 55 is rotatably connected to the pressing plate 54. By rotating the threaded rod 55, the pressing plate 54 can be driven to slide inside the housing 53, thereby applying pressure to the internal liquid.

[0030] The box 53, connecting pipe 51, indicator pipe 52, sleeve 42, moving pipe 43 and slider 44 are all filled with liquid. After the portal steel frame is vertically hoisted, the bottom of the side steel column 1 and the middle steel column 3 are connected to the corresponding mounting base. The liquid is squeezed by rotating the threaded rod 55 and driving the extrusion plate 54. The liquid pressure is transmitted to the internal cavity of the slider 44 and the moving pipe 43 through the connecting pipe 51 and indicator pipe 52, thereby driving the sleeve 42 and the moving pipe 43 to slide and extend relative to each other, and the connecting pipe 51 and the indicator pipe 52 to slide and extend relative to each other. This allows the telescopic support mechanism 4 to adaptively abut against the steel beam 2 and the corresponding steel column, achieving self-stabilizing support.

[0031] The indicator tube 52 has a scale to facilitate observation of the scale and the indicated position at the end of the connecting tube 51 to determine the tilt direction.

[0032] The box 53 located at the central steel column 3 is fixed to the front and rear sides of the bottom of the central steel column 3 to strengthen the support strength at this location; the box 53 located at the side steel column 1 is set on the side closer to the side steel column 1 to form a bottom support in the lateral position. Through the above arrangement, the liquid supply mechanism 5 not only serves as a hydraulic power source, but its box 53 itself also serves as a counterweight and support foundation, further enhancing the lateral stability of the bottom of the steel frame. The box 53 is fixedly connected to the ground.

[0033] The relative position of the indicator tube 52 and the connecting tube 51 changes over time after stabilization, which is used to determine the bending direction of the side steel column 1 and the middle steel column 3. Specifically, when the steel frame tilts or bends, the length of the telescopic support mechanism 4 changes accordingly, causing the connecting tube 51 to slide relative to the indicator tube 52. By observing the change in the relative position of the two, the tilt direction and degree of the steel frame can be monitored in real time, and an early warning of the structural stability can be given.

[0034] Example 2 Based on Example 1, such as Figure 4As shown, the frame 41 is divided into two equal halves, which are connected by bolts and nuts; the slider 44 is also divided into two equal halves, which are connected by bolts and nuts. This modular structure, secured with bolts and nuts, facilitates quick on-site installation and disassembly.

[0035] When the pressure stabilizing component is located at the central steel column 3, it is set at the front and rear sides of the bottom of the central steel column 3. When the pressure stabilizing component is located at the side steel column 1, it is set on the side closer to the side steel column 1, so as to form a stable support system in the lateral position. By arranging the pressure stabilizing component at the key stress position at the bottom of the steel frame, it provides hydraulic power and also has the function of counterweight stabilization, further improving the overall support effect.

[0036] Example 3 Based on Embodiment 2, a method for stabilizing a single portal steel frame, employing the aforementioned stabilizing device for a single portal steel frame, includes the following steps: The card frame 41 is fitted onto the steel beam 2, and the slider 44 is fitted onto the corresponding side steel column 1 or middle steel column 3 to complete the installation of the telescopic support mechanism 4. Connect the connecting pipe 51 of the liquid supply mechanism 5 to the internal chamber of the slider 44, fix the box 53 in the corresponding position, and complete the installation of the liquid supply mechanism 5. Vertically hoist a single portal steel frame so that the bottom of the side steel column 1 and the middle steel column 3 are connected to the corresponding mounting base; Rotating the threaded rod 55 causes the extrusion plate 54 to extrude liquid in the box 53, causing the sleeve 42 and moving pipe 43, and the connecting pipe 51 and indicating pipe 52 to extend adaptively, forming a self-stabilizing support for the single portal steel frame. By observing the relative positional changes of the indicator tube 52 and the connecting tube 51, the bending direction and structural stability of the side steel column 1 and the middle steel column 3 are monitored.

[0037] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A portal steel frame single-span stabilizing device, comprising side steel columns (1) located on both sides, steel beams (2) fixedly installed on opposite sides of each of the two side steel columns (1), the two steel beams (2) being fixedly connected, and a central steel column (3) fixedly installed between the connection points of the two steel beams (2), characterized in that: Telescopic support mechanisms (4) are provided at the angles between the central steel column (3) and the side steel column (1) and the steel beam (2). The telescopic support mechanism (4) is connected to the liquid supply mechanism (5) for liquid supply support; The liquid supply mechanism (5) includes a connecting pipe (51), an indicator pipe (52) and a pressure stabilizer. One end of the connecting pipe (51) is connected to the telescopic support mechanism (4), and the other end slides into the interior of the indicator pipe (52). The end of the indicator pipe (52) away from the connecting pipe (51) is connected to the pressure stabilizer. Both the telescopic support mechanism (4) and the liquid supply mechanism (5) are filled with liquid. The liquid pressure is adjusted by the pressure stabilizer to drive the telescopic support mechanism (4) to extend adaptively for self-stabilization support. The relative position of the connecting pipe (51) and the indicator pipe (52) after stabilization support is used to indicate the tilt.

2. The portal steel frame single-frame stabilization device according to claim 1, characterized in that: The telescopic support mechanism (4) includes a frame (41), a sleeve (42), a moving tube (43) and a slider (44). The frame (41) is slidably sleeved on the steel beam (2), and the slider (44) is slidably sleeved on the corresponding side steel column (1) or middle steel column (3). One end of the sleeve (42) is closed and rotatably connected to the frame (41), and the other end is for the moving tube (43) to slide into. The end of the moving tube (43) away from the sleeve (42) is rotatably connected to the slider (44). The slider (44) has a chamber inside to communicate with the moving tube (43).

3. A portal steel frame single-span stabilization device according to claim 2, characterized in that: One end of the connecting tube (51) is connected to the cavity inside the slider (44), and the other end slides into the interior of the indicator tube (52). The end of the indicator tube (52) away from the connecting tube (51) is connected to the voltage stabilizer.

4. A single-frame stabilizing device for a portal steel frame according to claim 3, characterized in that: The voltage stabilizer includes a housing (53), an extrusion plate (54), and a threaded rod (55). The housing (53) is connected to the indicator tube (52). The extrusion plate (54) is slidably sleeved inside the housing (53). The threaded rod (55) is threaded onto the housing (53), and the insertion end of the threaded rod (55) is rotatably connected to the extrusion plate (54).

5. A portal steel frame single-span stabilization device according to claim 4, characterized in that: The box (53), connecting tube (51), indicator tube (52), sleeve (42), moving tube (43) and slider (44) are all filled with liquid. By rotating the threaded rod (55), the squeezing plate (54) is driven to squeeze the liquid, which drives the sleeve (42) and moving tube (43), and the connecting tube (51) and indicator tube (52) to extend adaptively.

6. A portal steel frame single-span stabilization device according to claim 4, characterized in that: The box (53) located at the central steel column (3) is fixed to the front and rear sides of the bottom of the central steel column (3) to strengthen the support strength at this location. The box (53) located at the side steel column (1) is set on the side close to the side steel column (1) to form a bottom support in the lateral position.

7. A portal steel frame single-span stabilization device according to claim 4, characterized in that: The frame (41) is divided into two equal halves, which are connected by bolts and nuts.

8. A single-frame stabilizing device for a portal steel frame according to claim 2, characterized in that: The slider (44) is divided into two equal halves, which are connected by bolts and nuts.

9. A portal steel frame single-span stabilization device according to claim 1, characterized in that: When the pressure stabilizer is located at the central steel column (3), it is set at the front and rear sides of the bottom of the central steel column (3). When the pressure stabilizer is located at the side steel column (1), it is set on the side of the side steel column (1) to form a lateral support system together.

10. A method for stabilizing a single portal frame, employing a single portal frame stabilization device as described in any one of claims 1-9, characterized in that, Includes the following steps: Place the card frame (41) on the steel beam (2) and place the slider (44) on the corresponding side steel column (1) or middle steel column (3) to complete the installation of the telescopic support mechanism (4); Connect the connecting pipe (51) of the liquid supply mechanism (5) to the internal chamber of the slider (44), fix the box (53) in the corresponding position, and complete the installation of the liquid supply mechanism (5); Vertically hoist a single portal steel frame so that the bottom of the side steel column (1) and the middle steel column (3) are connected to the corresponding mounting base; Rotate the threaded rod (55) to drive the extrusion plate (54) to extrude the liquid in the box (53), so that the sleeve (42) and the moving pipe (43), the connecting pipe (51) and the indicator pipe (52) can extend adaptively to form a self-stabilizing support for the single frame of the portal steel frame. By observing the relative positional changes of the indicator tube (52) and the connecting tube (51), the bending direction and structural stability of the side steel column (1) and the middle steel column (3) are monitored.

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