A building entrance light steel structure installation system and construction method

Abstract

The application provides a building entrance light steel structure installation system and a construction method. The building entrance light steel structure installation system comprises a cantilever structure connected to a building main body, a track connected to the cantilever structure, a work platform and a hoisting part. The bottom of the work platform is provided with a walking mechanism to move along the track. The hoisting part comprises a first connecting column and a hoisting execution mechanism connected to the first connecting column. The first connecting column is rotatably connected to the work platform. The application provides a construction method of the building entrance light steel structure installation system. The work platform is hoisted to the track pre-paved on the cantilever structure. Hoisting operations are sequentially performed, and the hoisting flexibility is improved through the rotatable first connecting column. The application has the beneficial effect of reducing the blocking of the building entrance passage, ensuring that the internal process of the underground building can be constructed synchronously, and significantly shortening the construction period.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a light steel structure installation system and construction method for building entrances and exits. Background Technology

[0002] In existing technologies, the installation of light steel rain shelters at basement garage entrances or building entrances typically uses full-span scaffolding as a working platform, in conjunction with truck cranes for hoisting steel columns, beams, and other installation components. This presents several technical challenges, including: scaffolding blocking access routes below (e.g., basement passageways), preventing materials from being delivered and hindering simultaneous construction within the underground structure; limited scope of hoisting operations using scaffolding; and cumbersome scaffolding erection and dismantling, delaying construction progress. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a light steel structure installation system and construction method for building entrances, which is particularly suitable for scenarios where internal engineering needs to be carried out simultaneously with the installation of light steel structures at building entrances.

[0004] The technical solution adopted in this invention is: a light steel structure installation system for building entrances and exits, including a cantilever structure connected to the main body of the building; a track connected to the cantilever structure; a working platform with a walking mechanism at its bottom for moving along the track; and a hoisting unit including a first connecting column and a hoisting execution mechanism connected to the first connecting column, wherein the first connecting column is rotatably connected to the working platform.

[0005] Furthermore, it also includes a limiting component, which is connected to the bottom of the work platform and located on the side of the track.

[0006] Furthermore, it also includes a braking component, which is movably connected to the limiting component, and the braking component is used to abut against the side of the track.

[0007] Furthermore, it also includes a clamping assembly comprising a circumferential member and a wedge, the circumferential member having a recess to accommodate the bottom member and track of the work platform, and the wedge being inserted between the circumferential member and the bottom member or track.

[0008] Furthermore, the working platform is equipped with a second connecting column and the second connecting column is connected to a second flange, the first connecting column is connected to a first flange, the first connecting column and the second connecting column are plugged into each other, and the first flange and the second flange are detachably connected.

[0009] Furthermore, the hoisting unit also includes a suspension arm, which is connected to the first connecting column and extends laterally to connect to the hoisting actuator.

[0010] On the other hand, the present invention also provides a construction method for a light steel structure installation system for building entrances and exits, comprising the following steps:

[0011] S1. Connect the cantilever structure to the main building and install tracks on it;

[0012] S2. Hoist the work platform onto the track and move the work platform to the designated work position;

[0013] S3. Align the hoisting actuator with the component to be hoisted for hoisting;

[0014] S4. After completing the hoisting operation at the current workstation, move the work platform to the next workstation via the traveling mechanism and repeat step S3.

[0015] The advantages and positive effects of this invention are: by adopting the above technical solution, the blocking of entrance and exit passages can be reduced, the internal construction processes of underground buildings can be carried out simultaneously, the construction period can be significantly shortened, the construction cost can be reduced, and the invention also has the advantages of good operational flexibility and construction adaptability. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of an embodiment of the present invention;

[0017] Figure 2 This is a side view structural diagram of an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the hoisting part in one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram showing the connection relationship between the limiting member and the braking member in one embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the clamping component in one embodiment of the present invention;

[0021] In the picture:

[0022] 1. Cantilever structure; 2. Track; 3. Limiting component; 4. Braking component; 5. Roller; 6. Fixing angle steel; 7. Encircling component; 8. Mounting frame; 9. Wooden frame board; 10. Remote control electric hoist; 11. Suspension arm; 12. Second connecting column; 13. Second flange; 14. First connecting column; 15. First flange; 16. Pin; 17. Handle; 18. Third flange; 19. Fastening bolt; 20. Cantilever fixing flange; 21. Mounting plate; 22. Tightening auxiliary nut; 23. Roller bearing; 24. Wedge; 25. Main structure; 26. Component to be hoisted. Detailed Implementation

[0023] The embodiments of the present invention will now be described with reference to the accompanying drawings. The described embodiments are only some embodiments of the invention, and not all embodiments.

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout.

[0025] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "installation," "connection," and "fixing" should be interpreted broadly, and can refer to direct connection, installation, or fixing, or indirect connection, installation, or fixing. The present invention does not impose any limitations in this regard.

[0026] This invention relates to a lightweight steel structure installation system and construction method for building entrances and exits, particularly suitable for the installation of lightweight steel rain shelters at the entrances and exits of basements such as civil defense basements where internal engineering needs to be carried out simultaneously. The lightweight steel structure refers to a lightweight steel frame structure used to construct building entrances and exits (e.g., rain shelters for basement garage entrances and exits), whose components mainly include steel columns, steel beams, and purlins. This system is particularly suitable for on-site hoisting and installation of such lightweight steel components, aiming to improve the technical problems of entrance and exit passage blockage and construction delays existing in traditional construction methods.

[0027] like Figures 1 to 5 The diagram illustrates an embodiment of a light steel structure installation system for a building entrance according to the present invention. It includes a cantilever structure 1 connected to the main building structure; a track 2 connected to the cantilever structure 1; a work platform with a walking mechanism at its bottom for movement along the track 2; and a hoisting unit comprising a first connecting column 14 and a hoisting execution mechanism connected to the first connecting column 14, the first connecting column 14 being rotatably connected to the work platform. The walking mechanism includes rollers 5 adapted to the track 2, the rollers 5 being rotatably connected to the bottom of the work platform via brackets.

[0028] The cantilever structure is fixed to the main building 25 (such as the basement wall), and below it is usually a reinforced concrete ramp structure (i.e., the basement ramp for vehicle access, made of reinforced concrete). To reduce conflicts with the construction or passage of the ramp below, this system transforms the traditional hoisting work based on fixed scaffolding into a work platform that can move along the track 2 on the cantilever structure 1 by setting up the cantilever structure 1, the track 2, and the work platform with a walking mechanism. This significantly reduces the ground space occupied at the entrance and exit passages and reduces the obstruction of the entrance and exit passages, creating conditions for the interleaving of other construction processes inside the building. At the same time, the first connecting column 14 is rotatably connected to the work platform, which allows the hoisting execution mechanism to flexibly adjust the angle, expand the hoisting coverage area, and improve construction adaptability.

[0029] Preferably, the system also includes a limiting member 3, which is connected to the bottom of the work platform and located on the side of the track 2, and is used to constrain the lateral displacement of the work platform. Adding the limiting member 3 provides physical constraint on the movement of the work platform on the track 2, effectively reducing the risk of the work platform detaching from the track 2 due to external forces, and improving the safety of system operation.

[0030] Preferably, the system also includes a brake element 4, which is movably connected to the limiting member 3. The brake element 4 is used to abut against the side of the track 2. The design of the brake element 4 provides a simple and reliable positioning method for the work platform. After moving to the designated work position, operating the brake element 4 to abut against the side of the track 2 increases friction, slows down or locks the platform's movement, and improves the stability and accuracy of the hoisting operation.

[0031] Preferably, the system also includes a clamping assembly comprising a circumferential member 7 and a wedge 24. The circumferential member 7 has a recess to accommodate the bottom component of the work platform and the track 2. The wedge 24 is inserted between the circumferential member 7 and the bottom component or between the circumferential member 7 and the track 2. As an additional safety device, the clamping assembly, through the cooperation of the circumferential member 7 and the wedge 24, enables the bottom component of the work platform to be detachably and securely connected to the track 2, significantly improving the overall safety of the system during critical lifting operations.

[0032] Preferably, the working platform is provided with a second connecting column 12 connected to a second flange 13, and a first connecting column 14 connected to a first flange 15. The first connecting column 14 and the second connecting column 12 are plugged into each other, and the first flange 15 and the second flange 13 are detachably connected. Rotation is achieved by plugging the first connecting column 14 and the second connecting column 12 into each other, and the detachable connection between the first flange 15 and the second flange 13 ensures the flexibility of rotation adjustment, and effectively limits the accidental rotation of the first connecting column 14 during hoisting operations by using the connecting flanges, thereby improving the flexibility and stability of hoisting operations.

[0033] Preferably, the hoisting unit further includes a suspension arm 11, which is connected to the first connecting column 14 and extends laterally to connect to the hoisting actuator. The lateral extension design of the suspension arm 11 allows the hoisting point to be further extended outward, facilitating the direct hoisting of components to the installation position, reducing manual handling, and improving construction efficiency.

[0034] On the other hand, the present invention also provides a construction method for a light steel structure installation system for building entrances and exits, comprising the following steps:

[0035] S1. Connect the cantilever structure 1 to the main building and install the track 2 on it;

[0036] S2. Hoist the work platform onto track 2 and move the work platform to the designated work position;

[0037] S3. Align the hoisting actuator with the component 26 to be hoisted for hoisting. Specifically, the position of the hoisting actuator can be adjusted by rotating the first connecting column 14.

[0038] S4. After completing the hoisting operation at the current workstation, move the work platform to the next workstation via the traveling mechanism and repeat step S3.

[0039] It is understandable that those skilled in the art can not only use a single system to hoist the steel columns and side beams; when installing the crossbeams, two systems can also be flexibly used, respectively arranged at both ends of the crossbeams, and the crossbeams can be hoisted in sync by the hoisting actuators on both sides. The method of synchronous hoisting control is existing technology and will not be described in detail here.

[0040] In a specific embodiment:

[0041] The cantilevered square steel, as the cantilever structure 1, is pre-embedded or anchored to a predetermined position in the basement wall to provide a stable bearing foundation for the installation of the track 2. Its cantilever design can reduce the occupation of the passage space below compared with full-span scaffolding.

[0042] Rail 2 can be made of steel and is vertically connected to the cantilevered square steel and set above the light steel structure to be installed area. The two rails 2 are set in parallel to provide a precise movement path for the work platform.

[0043] The mobile work platform includes a mounting frame 8 and standardized wooden frame panels 9 laid on the mounting frame 8. The mounting frame 8 is a frame-type steel frame welded from steel pipes, with a walking mechanism at its bottom. In this embodiment, the walking mechanism includes at least four roller sets, each roller set including a roller 5, a roller bearing 23, and two fixed angle steels 6. The roller 5 is rotatably mounted between the two fixed angle steels 6 via the roller bearing 23, and each fixed angle steel 6 is fixed to the bottom of the mounting frame 8. The multiple roller sets are slidably mounted on two parallel steel tracks 2, allowing the work platform to move smoothly along the tracks 2. The standardized wooden frame panels 9 are laid and fixed on the crossbeams of the mounting frame 8, forming a standardized, non-slip worker work platform.

[0044] The limiting component 3, acting as an anti-derailment stop, is connected to the bottom of the mounting frame 8, located between the two steel rails 2 and close to the side of one of the rails 2. It is used to restrain the lateral displacement of the work platform and prevent the rollers 5 from derailing. The limiting component 3 can be made of steel, specifically cut and welded from the same steel pipe or plate as the work platform mounting frame 8. In other embodiments, limiting components 3 can also be provided on both sides of each rail 2.

[0045] A tightening auxiliary nut 22 is welded onto the limiting component 3. The braking component 4 can be made of bolts and threadedly engages with the tightening auxiliary nut 22. When rotating the braking component 4, it can be controlled to move closer to or further away from the side of the track 2. The end of the braking component 4 can be selectively brought into contact with the side of the track 2 as needed, thereby increasing friction to achieve positioning and braking of the work platform. Preferably, the roller 5 can also be a roller with a braking function, forming a double braking system.

[0046] The clamping assembly includes a circumferential member 7 and a wedge 24. The circumferential member 7 is a C-type anti-tipping clamp with a recess to accommodate the bottom beam of the mounting frame 8 and the track 2. The C-type anti-tipping clamp is fitted onto the bottom beam of the mounting frame 8 and the bottom of the track 2. The wedge 24 (a custom-made wooden wedge in this embodiment) can be selectively inserted into the gap (the gap between the circumferential member 7 and the bottom beam of the mounting frame 8 or the bottom of the track 2) and tightened, thereby detachably and securely connecting the mounting frame 8 and the track 2, thus improving construction safety and stability.

[0047] The second connecting column 12 is a base tube, vertically connected to the column of the mounting bracket 8, and its top is fixedly connected to a second flange 13 (i.e., the base flange). The first connecting column 14 is a socket tube, the lower end of which is rotatably inserted into the base tube, and a first flange 15 (i.e., the lower flange of the socket tube) is fixedly connected to the outside of the first connecting column 14. The first flange 15 and the second flange 13 are detachably connected by a pin 16 or bolt assembly to selectively restrict their relative rotation. The portion of the first connecting column 14 above the first flange 15 serves as an exposed tube, providing the main support height, and a third flange 18 (i.e., the upper flange of the socket tube) is welded to the top of the first connecting column 14 (i.e., the top of the exposed tube). A handle 17 for easy rotation control is provided on the first connecting column 14 or the first flange 15.

[0048] The suspension arm 11 is a cantilever tube, which is inverted L-shaped or connected at an angle to the first connecting column 14. One end of it is detachably connected to the third flange 18 (i.e. the flange on the socket tube) through the cantilever fixing flange 20 and fastening bolts 19. The other end extends laterally and is connected to the hoisting actuator.

[0049] The hoisting actuator includes a mounting plate 21 and a remote-controlled electric hoist 10 mounted thereon, used for lifting and lowering the components 26 to be hoisted (such as steel columns or steel beams). The mounting plate 21 is connected to the suspension arm 11.

[0050] One construction process in this embodiment is as follows:

[0051] S1. Connect the cantilevered square steel to a predetermined position above the basement wall, and install steel track 2 on it;

[0052] S2. Hoist the work platform with the walking mechanism assembled onto track 2, and move the work platform to the predetermined work position;

[0053] S3. Insert the bottom of the first connecting column 14 into the second connecting column 12, rotate the first connecting column 14 so that the mounting plate 21 is aligned with the component 26 to be hoisted, and if necessary, connect the first and second flanges 13 with components such as pins 16 to fix the angle, and start the remote-controlled electric hoist 10 to carry out the hoisting operation; during the hoisting process, the working platform can be further fixed by the brake component 4 and the clamping assembly.

[0054] S4. After completing the hoisting at the current work station, release the brake and move the work platform to the next work station via the traveling mechanism to carry out the hoisting of the light steel structure at the next work station.

[0055] This invention can reduce the obstruction of building entrances and exits, such as basement passages, ensure simultaneous construction of internal processes, shorten the construction period, reduce construction costs, and at the same time have good operational flexibility and construction adaptability.

[0056] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A light steel structure installation system for building entrances and exits, characterized in that, include: Cantilevered structures connected to the main building structure; A track, which is connected to the cantilever structure; The work platform has a walking mechanism at its bottom for moving along the track; The hoisting unit includes a first connecting column and a hoisting actuator connected to the first connecting column, wherein the first connecting column is rotatably connected to the work platform.

2. The building entrance light steel structure installation system according to claim 1, characterized in that, It also includes a limiting component, which is connected to the bottom of the work platform and located on the side of the track.

3. The building entrance light steel structure installation system according to claim 2, characterized in that, It also includes a braking component, which is movably connected to the limiting member, and the braking component is used to abut against the side of the track.

4. The building entrance light steel structure installation system according to any one of claims 1 to 3, characterized in that, It also includes a clamping assembly comprising a circumferential member and a wedge, the circumferential member having a recess to receive the bottom member of the work platform and the track, the wedge being inserted between the circumferential member and the bottom member or the track.

5. The building entrance light steel structure installation system according to any one of claims 1 to 3, characterized in that, The working platform is provided with a second connecting column and the second connecting column is connected to a second flange. The first connecting column is connected to a first flange. The first connecting column and the second connecting column are inserted into each other. The first flange and the second flange are detachably connected.

6. The building entrance light steel structure installation system according to any one of claims 1 to 3, characterized in that, The hoisting unit also includes a suspension arm, which is connected to the first connecting column and extends laterally to connect to the hoisting actuator.

7. A construction method for a light steel structure installation system for building entrances, used in the light steel structure installation system for building entrances as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1. Connect the cantilever structure to the main building and install tracks on it; S2. The work platform is hoisted onto the track, and the work platform is moved to the predetermined work position; S3. Align the hoisting actuator with the component to be hoisted for hoisting; S4. After completing the hoisting operation at the current workstation, move the work platform to the next workstation using the traveling mechanism, and repeat step S3.

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