A construction method and equipment for a roof cantilever slab structure that can be used for both decoration and construction.

Abstract

This application discloses a construction method and equipment for a dual-purpose scaffold for roof cantilever slab structures and decoration. The method involves erecting scaffolding on one side of the building construction location, with the top of the scaffolding extending below the construction location of the cantilever slab structure layer. A pouring formwork for the cantilever slab structure layer is erected on top of the scaffolding, and the cantilever slab structure layer is poured. The scaffolding provides support for the construction of the cantilever slab structure layer. The exterior facade decoration is completed using the scaffolding. The scaffolding causes minimal damage to the building structure, eliminating the need for repair work after dismantling the cantilever support frame. Furthermore, the construction process does not occupy interior space within the building structure, reducing rental costs for materials such as I-beams and unloading wire ropes, and avoiding material waste caused by the need to weld and cut round steel rings after dismantling the scaffolding.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to a construction method and equipment for a roof cantilever slab structure that can be used for both decoration and construction. Background Technology

[0002] The cantilevered sloping roof is a common building roof structure design. There are many types of cantilevered roof structures, with relatively high support heights, making the formwork support construction quite complex and difficult.

[0003] Conventional construction methods include using pre-embedded round steel pressure rings and cantilevered I-beams to erect cantilevered support frames for formwork support; or using pre-reserved grooves to add diagonal bracing rods and unloading wire ropes for formwork support. However, conventional cantilevered I-beam formwork support methods are problematic because the I-beams occupy a large amount of indoor space, affecting subsequent secondary structure and decoration work; the quality of later repairs to the pre-reserved I-beam positions is difficult to guarantee; and after dismantling the scaffold, the round steel rings need to be cut by welding, resulting in material waste. Adding diagonal bracing rods and suspending wire ropes requires adding a row of uprights as an operating platform and guardrails outside the existing scaffolding, and necessitates pre-reserved grooves for the diagonal bracing rods, the addition of unloading wire ropes, and the addition of horizontal tie rods for reinforcement. The construction process is more complicated and therefore has room for improvement. Summary of the Invention

[0004] In order to reduce the damage to the building structure caused by the support system, reduce the space occupied in the building interior, and reduce construction costs, this application provides a construction method and construction equipment for a roof cantilever slab structure that can be used for both decoration and construction.

[0005] The technical solution provided in this application for a construction method and equipment for a dual-purpose scaffold for roof cantilever slab structures and decoration is as follows:

[0006] A construction method for a roof cantilever slab structure that can be used for both decoration and construction includes the following steps:

[0007] S1: Erect scaffolding on one side of the building construction site, with the top of the scaffolding extending below the construction site of the cantilevered slab structure layer;

[0008] S2: Erect the pouring formwork for the cantilevered slab structure layer at the top of the scaffolding and carry out the pouring construction of the cantilevered slab structure layer. The scaffolding provides support for the construction of the cantilevered slab structure layer.

[0009] S3: Use scaffolding to complete the exterior decoration and renovation of the building.

[0010] By adopting the above technical solution, the scaffolding on the outside of the building serves as both a support structure for the construction of the cantilevered roof slab structure and a construction platform for the exterior decoration and finishing of the building structure. The scaffolding causes virtually no damage to the building structure, effectively preventing quality hazards such as exterior wall leakage, and eliminating the need for repair work after dismantling the cantilevered support frame, thus saving a significant amount of labor costs for repairing holes. In addition, the construction process of the dual-purpose scaffolding for the cantilevered roof slab structure and decoration does not occupy the interior space of the building structure, and subsequent secondary structure and piping and electrical installation work can be carried out in a conventional manner, which helps to save the overall construction period. Moreover, the construction process does not require the pre-embedding of Z-shaped anchor bars for cantilevered I-beams, nor does it require the addition of cantilever poles and structural unloading wire ropes to achieve formwork support, reducing the rental costs of materials such as I-beams and unloading wire ropes, and avoiding the waste of materials caused by welding and cutting round steel collars after construction dismantling.

[0011] Preferably, in step S2, before constructing the cantilevered roof slab structure layer, the scaffolding is modified by adding horizontal bars between several vertical bars in the same horizontal row of the scaffolding to reduce the step distance of the scaffolding.

[0012] The step distance of scaffolding refers to the distance between the axes of the upper and lower horizontal crossbars. Since scaffolding needs to serve as a supporting structure to provide support for the construction of the cantilevered roof slab structure, the requirements for the structural strength of scaffolding are also increased. By adopting the above technical solution, horizontal bars are directly added to several vertical bars in the same horizontal row, which reduces the step distance of scaffolding and improves the stability of scaffolding, which is conducive to improving the overall structural strength of scaffolding.

[0013] Preferably, in step S2, after constructing the cantilevered roof slab structure layer, all horizontal bars are removed before proceeding with the exterior decoration and finishing work of the building structure.

[0014] By adopting the above technical solution, the scaffolding can be restored to a conventional step-width decoration scaffolding, thereby reducing the impact of horizontal bars on construction workers walking on the scaffolding.

[0015] Preferably, a connector is provided between adjacent horizontal bars.

[0016] By adopting the above technical solutions, the connection stability of adjacent horizontal bars can be improved, which in turn helps to improve the overall stability of the scaffolding.

[0017] A construction device for a roof cantilever slab structure that can be used for both decoration and construction is provided. The device includes a box that slides along the length of a horizontal bar and is used to hold the removed horizontal bar.

[0018] By adopting the above technical solution, the horizontal bar can be removed while the removed horizontal bar is placed inside the box, making it convenient to collect the horizontal bar.

[0019] Preferably, pulley assemblies are provided on both sides of the box body, and the pulley assemblies are used to slide in connection with the horizontal bar.

[0020] Since the scaffolding is constructed from multiple vertical and horizontal poles, supporting and moving the box-shaped structure is difficult. A pulley assembly is used to achieve a sliding connection between the box-shaped structure and the horizontal poles. The horizontal poles serve as guide rails for the pulley assembly, which helps improve the stability of the box-shaped structure's movement. Each time a horizontal pole is passed, it is disassembled. The disassembly and collection of the horizontal poles are carried out in an orderly manner, which helps improve the disassembly efficiency of the horizontal poles.

[0021] Preferably, both sides of the housing are longitudinally slidably connected to sliders, and each slider corresponds to a pulley assembly; the pulley assembly is rotatably connected to the slider, and the axis of rotation of the pulley assembly is vertically arranged; the pulley assembly includes several pulley units, which are circumferentially distributed on the axis of rotation of the pulley assembly; the outer peripheral wall of each pulley unit is provided with an annular groove for engaging with a horizontal bar; the housing is provided with an elastic element that drives the pulley assembly to move toward the horizontal bar; and the pulley assembly rolls along the length of the horizontal bar.

[0022] By adopting the above technical solution, the pulley assembly is connected to the slider, and the pulley assembly is driven to move towards the horizontal bar by the elastic element, so that the pulley assembly presses against the horizontal bar. This helps to improve the tightness of the connection between the annular groove and the horizontal bar, and further improves the stability of the box. By rotating the pulley assembly and the slider, when the pulley assembly encounters obstacles such as vertical bars, multiple pulley units cooperate to smoothly cross the obstacles while keeping the box moving continuously, which helps to improve the smoothness of the box's movement.

[0023] Preferably, the pulley assembly further includes a rotating shaft and a cross-shaped frame. The rotating shaft is vertically disposed on the slider, the cross-shaped frame is rotatably connected to the rotating shaft, and the four individual pulleys are respectively rotatably connected to the four ends of the cross-shaped frame.

[0024] By adopting the above technical solution, the pulley unit and the cross frame can rotate relative to each other, so that when the pulley assembly moves on the horizontal bar, the pulley unit can roll on the horizontal bar, which helps to reduce the friction between the pulley assembly and the horizontal bar and improves the smoothness of the box movement.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. Using scaffolding on the exterior of the building as a support structure for the construction of the cantilevered roof slab structure and the exterior facade decoration and finishing work can both support the cantilevered roof slab structure and provide construction space for the exterior facade decoration work. The scaffolding causes minimal damage to the building structure, eliminating the need for repair work after dismantling the cantilever support frame. Furthermore, the construction process does not occupy the interior space of the building structure, while reducing the rental costs of materials such as I-beams and unloading wire ropes, and avoiding the waste of materials caused by welding and cutting the round steel collars after dismantling the scaffolding.

[0027] 2. By adding horizontal bars between several vertical bars in the same horizontal row in the scaffold before constructing the cantilevered roof slab structure layer, the step distance of the scaffold is reduced, the stability of the scaffold is improved, and the overall structural strength of the scaffold is enhanced. After constructing the cantilevered roof slab structure layer, all horizontal bars are removed before the exterior facade decoration and finishing work of the building structure is carried out. This helps to reduce the impact of the horizontal bars on the workers' movement on the scaffold.

[0028] 3. By connecting the pulley assembly to the slider and driving the pulley assembly towards the horizontal bar through the elastic element, the pulley assembly is pressed against the horizontal bar, which helps to improve the tightness of the connection between the annular groove and the horizontal bar, and further improves the stability of the box. In addition, by rotating the pulley assembly to the slider, when the pulley assembly encounters obstacles such as vertical bars, multiple pulley units cooperate to smoothly cross the obstacles while keeping the box moving, which helps to improve the smoothness of the box's movement. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a roof cantilever slab structure construction method for decoration, according to an embodiment of this application.

[0030] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0031] Figure 3 This is a schematic diagram of the connection between a roof cantilever slab structure construction equipment and a horizontal bar, according to an embodiment of this application.

[0032] Figure 4 This is a schematic diagram of the connection relationship between the slider and the slide groove in a roof cantilever slab structure construction equipment for both decoration and construction, according to an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Building structure; 2. Cantilevered slab structure layer; 3. Scaffolding; 31. Vertical bar; 32. Horizontal bar; 33. Connector; 4. Box; 41. Slide groove; 5. Pulley assembly; 51. Rotating shaft; 52. Cross-shaped rotating frame; 53. Pulley unit; 531. Annular groove; 54. Sliding block; 55. Elastic element. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0035] This application discloses a construction method for a dual-purpose scaffolding system for roof cantilever slab structures and decoration. (Refer to...) Figure 1 and Figure 2 This includes the following steps:

[0036] S1: Measurement and layout for positioning, followed by the installation of scaffolding 3 on one side of the construction site. This application adopts a three-row ground-supported steel pipe scaffolding 3 (scaffolding design: upright step distance 1.80m, upright longitudinal spacing 0.90m, upright transverse spacing: 0.75m / 0.80m / 0.80m from the wall). The upright step distance is the distance between the axes of the upper and lower horizontal crossbars of the scaffolding 3. The scaffolding 3 extends laterally. The top of scaffolding 3 is constructed to the position below the cantilevered slab structure layer 2. Then, horizontal bars 32 are fully erected on the three rows of scaffolding 3 at a step distance of 0.90m. The horizontal bars 32 are fixed to several vertical bars 31 of scaffolding 3 with fasteners, so that the step distance of scaffolding 3 is reduced from 1.8m to 0.90m. Scaffolding 3 is transformed into a full-span support frame with a vertical spacing of 0.80m*0.90m and a step distance of 0.90m, in order to improve the overall structural strength of scaffolding 3.

[0037] It is important to emphasize that, since the step distance of the scaffolding row furthest from the building structure does not affect the normal construction of the subsequent exterior facade decoration, dismantling is not required, and longer horizontal bars 32 can be used. However, because the horizontal bars 32 of the two rows of scaffolding closest to the building structure will affect the construction workers during the subsequent exterior facade decoration, shorter horizontal bars 32 are used. A set of horizontal bars 32 is installed between adjacent 2-3 vertical bars 31, and connectors 33, using single-piece fasteners, are installed between adjacent horizontal bars 32. This facilitates dismantling and collection before the subsequent exterior facade decoration construction.

[0038] S2: Erect a casting template for the cantilevered slab structure layer 2 on top of scaffold 3, then arrange steel bars in the casting template and connect them to the top of the building structure. Then carry out the casting construction of the cantilevered slab structure layer 2. Scaffold 3 provides support for the construction of the cantilevered slab structure layer 2 until the cantilevered slab structure layer 2 is formed, and the construction of the roof cantilevered slab structure layer 2 is completed.

[0039] S3: Then remove the horizontal bars 32 of the two rows of scaffolding closest to the building structure, restore the 1.80 step distance decoration scaffolding 3, and then use the scaffolding 3 to complete the exterior decoration construction of the building.

[0040] This application also discloses a construction equipment for a dual-purpose scaffold for roof cantilever slab structures and decoration, applied to a construction method for such scaffolds, referring to... Figure 1 and Figure 3 It includes a rectangular box 4 with an open top, and the box 4 is used to hold and collect the dismantled horizontal bar 32.

[0041] Reference Figure 3 and Figure 4 Four pulley assemblies 5 are installed on the top of the housing 4, and the pulley assemblies 5 are located on both sides of the housing 4. Specifically, four sliding grooves 41 are opened at the top of the housing 4, and the four sliding grooves 41 are located at the four corners of the top of the housing 4. The sliding grooves 41 extend longitudinally, and the length direction of the sliding grooves 41 is consistent with the length direction of the housing 4. A slider 54 is slidably connected in each of the four sliding grooves 41. The grooves 41 and the sliders 54 are both inverted T-shaped, and the sliding grooves 41 and the sliders 54 are adapted to each other. The four pulley assemblies 5 correspond one-to-one with the four sliders 54.

[0042] The pulley assembly 5 includes a rotating shaft 51, a cross-shaped frame 52, and four individual pulleys 53. The rotating shaft 51 is vertically mounted on the slider 54, and the cross-shaped frame 52 is horizontally mounted and rotatably connected to the rotating shaft 51, rotating about the rotating shaft 51. The four individual pulleys 53 are circumferentially distributed on the rotating shaft 51, and are rotatably connected to the four ends of the cross-shaped frame 52, with the axis of rotation of each individual pulley 53 parallel to the rotating shaft 51. The outer peripheral wall of each individual pulley 53 has an annular groove 531 for engaging with the horizontal bar 32.

[0043] An elastic element 55 is installed inside the slide 41. The elastic element 55 is a spring. The spring is fixed to the inner end wall of the slide 41 and in front of the slider 54. The spring is used to drive the slider 54 to move towards the wide side wall of the housing 4.

[0044] Reference Figure 2 and Figure 3 In the disassembly step of horizontal bar 32 in S3, the pulley assemblies 5 on both sides of the box body 4 respectively cooperate with the two horizontal bars 32 opposite between the two rows of scaffolding 3. Under the elastic force of the elastic element 55, the pulley assembly 5 moves towards the horizontal bar 32. The annular groove 531 of the pulley assembly 5 engages with the adjacent horizontal bar 32, and the inner wall of the annular groove 531 abuts against the outer circumference of the horizontal bar 32, thereby setting the box body 4 between the two opposite horizontal bars 32.

[0045] Then, the box 4 moves along the length of the horizontal bar 32. The pulley unit 53 rolls on the horizontal bar 32. When the pulley unit 53 encounters obstacles such as the vertical bar 31 or the straight fastener, the obstacle applies a reaction force to the pulley unit 53 and transmits it to the cross frame 52. The cross frame 52 rotates accordingly, so that the next pulley unit 53 crosses the obstacle such as the vertical bar 31 and stops at the next section of the horizontal bar 32. Through the cooperation of multiple pulley units 53, while keeping the box 4 moving continuously, the pulley assembly 5 can smoothly cross obstacles, which helps to improve the smoothness of the movement of the box 4.

[0046] During the rotation of the cross frame 52, the cross frame 52 transmits the force to the slider 54 through the rotating shaft 51, so as to force the slider 54 to move along the length of the groove 41. The slider 54 moves away from the horizontal bar 32. At this time, the elastic element 55 is compressed. After the next pulley unit 53 crosses the obstacle, the elastic element 55 drives the slider 54 to move towards the horizontal bar 32, so that the inner wall of the annular groove 531 of the pulley unit 53 is close to the outer circumference of the horizontal bar 32, which is beneficial to the stability of the box 4 during the process of the pulley assembly 5 crossing the obstacle.

[0047] After passing a horizontal bar 32, the horizontal bar 32 can be disassembled and placed inside the box 4 for collection. Disassembling the horizontal bar 32 as it passes through the box 4, and carrying out the disassembly and collection steps in an orderly manner, helps improve the efficiency of disassembly.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction method for a roof cantilever slab structure that can be used for both decoration and construction, comprising a construction device for a roof cantilever slab structure that can be used for both decoration and construction, characterized in that... The method includes the following steps: S1: Erect scaffolding (3) on one side of the building construction site, with the top of the scaffolding (3) extending below the construction site of the cantilevered slab structure layer (2); S2: Erect a pouring template for the cantilevered slab structure layer (2) on the top of the scaffold (3) and carry out the pouring construction of the cantilevered slab structure layer (2). The scaffold (3) provides support for the construction of the cantilevered slab structure layer (2). S3: Use scaffolding (3) to complete the exterior decoration and renovation of the building; In S2, before constructing the cantilevered roof slab structure layer (2), the scaffolding (3) is modified, and horizontal bars (32) are added between several vertical bars (31) in the same horizontal row in the scaffolding (3) to reduce the step distance of the scaffolding (3). In S2, after the cantilevered roof structure layer (2) is constructed, all horizontal bars (32) are removed, and then the exterior facade decoration and renovation of the building structure is carried out. A connector (33) is provided between adjacent horizontal bars (32); The roof cantilever slab structure decoration dual-purpose scaffolding construction equipment includes a box (4), which slides along the length of the horizontal bar (32) and is used to place the dismantled horizontal bar (32); Both sides of the box body (4) are provided with pulley assemblies (5), which are used to slide with the horizontal bar (32); Both sides of the housing (4) are longitudinally slidably connected to sliders (54), and each slider (54) corresponds to a pulley assembly (5). The pulley assembly (5) is rotatably connected to the slider (54), and the rotation axis of the pulley assembly (5) is vertically arranged. The pulley assembly (5) includes several pulley units (53), which are circumferentially distributed on the rotation axis of the pulley assembly (5). The outer peripheral wall of each pulley unit (53) is provided with an annular groove (531) for engaging with the horizontal rod (32). The housing (4) is provided with an elastic element (55) that drives the pulley assembly (5) to move toward the horizontal rod (32). The pulley assembly (5) rolls along the length of the horizontal rod (32).

2. The construction equipment for a roof cantilever slab structure that can be used for both decoration and construction, as described in claim 1, is characterized in that: The pulley assembly (5) also includes a rotating shaft (51) and a cross-shaped rotating frame (52). The rotating shaft (51) is vertically arranged on the slider (54). The cross-shaped rotating frame (52) is rotatably connected to the rotating shaft (51). The four pulley units (53) are rotatably connected to the four ends of the cross-shaped rotating frame (52).

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