Overhanging type column-free stair formwork platform

Abstract

The utility model discloses overhanging type no stand column stair mould platform belongs to building construction technical field, including stair formwork, support structure and cantilever beam, the surrounding of stair formwork, support structure and cantilever beam is provided with building main body structure, the stair formwork includes step formwork and stair platform formwork, the support structure includes a plurality of oblique support plate and horizontal connecting plate, one end of cantilever beam is fixed on building main body structure, and the other end is connected with stair formwork, the oblique support plate is inclined to set up, and the upper end of oblique support plate is connected with the back of step formwork or stair platform formwork of stair formwork, and the lower end of oblique support plate is connected with building main body structure, the traditional stair construction formwork builds and often adopts the mode of stand column support, and stand column needs to occupy certain space in the stair interval, and too many stand columns in the narrow stair construction space can influence construction personnel operating space, also is unfavorable to the stacking and transportation of material and reduces the construction efficiency problem.

Description

Technical Field

[0001] This utility model relates to a three-dimensional imaging and modeling device, specifically a cantilevered column-free staircase model platform. Background Technology

[0002] Construction refers to the production activities during the implementation phase of a project. It is the process of building various types of structures, or the process of turning the lines on design drawings into a physical object at a designated location. It includes foundation construction, main structure construction, roofing construction, and decoration construction. The site where construction work takes place is called the "construction site" or "building site."

[0003] Staircase construction is a crucial part of building construction. Traditional staircase construction often uses column supports for formwork, but this method has several problems:

[0004] Large space occupation: The columns need to occupy a certain space in the stairwell. In the narrow stairwell construction space, too many columns will affect the working space of the construction workers, and will also be detrimental to the stacking and transportation of materials, thus reducing construction efficiency.

[0005] Stability is difficult to control: The installation of the columns requires a high degree of verticality and stability. Even slight deviations in installation can lead to formwork deformation during concrete pouring, affecting the quality of the staircase's formation. Furthermore, the connection structure between the columns and the formwork is relatively complex and susceptible to loosening under external forces during construction, further compromising stability.

[0006] Inconvenient disassembly and assembly: The column support system is cumbersome to disassemble, requiring the individual disassembly of each column and its connecting components, which is time-consuming and increases construction costs.

[0007] Therefore, a cantilevered, column-free staircase platform is needed to solve the problems existing in the current technology. Utility Model Content

[0008] The purpose of this utility model is to provide a cantilevered, column-free staircase formwork to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a cantilevered column-free staircase formwork, comprising a staircase formwork, a supporting structure, and a cantilever beam. The staircase formwork, the supporting structure, and the cantilever beam are surrounded by a main building structure. The staircase formwork includes tread formwork and staircase platform formwork. The supporting structure includes multiple inclined support plates and horizontal connecting plates. One end of the cantilever beam is fixed to the main building structure, and the other end is connected to the staircase formwork.

[0010] In a preferred embodiment, the inclined support plate is inclined, and the upper end of the inclined support plate is connected to the back of the stair tread template or stair platform template, while the lower end of the inclined support plate is connected to the main building structure.

[0011] In a preferred embodiment, the step template includes multiple independent step unit templates, and adjacent step unit templates are connected by slots and blocks, with sealing rubber strips provided in the slots.

[0012] In a preferred embodiment, the cantilever beam includes a main cantilever beam and a secondary cantilever beam. The secondary cantilever beam is located directly in front of the main cantilever beam. The top of both the main cantilever beam and the secondary cantilever beam is provided with a reinforcing rib and connected to the bottom of the main building structure.

[0013] In a preferred embodiment, the connection between the inclined support plate and the main building structure is provided with a pre-embedded connector, which is a steel plate with bolt holes. The inclined support plate is fixedly connected to the pre-embedded connector by bolts.

[0014] In a preferred embodiment, the main building structure includes concrete walls and a concrete base slab, the main cantilever beam and the secondary cantilever beam are connected to the concrete base slab by chemical bolts, and the lower end of the inclined support plate is connected to the concrete wall by expansion bolts.

[0015] In a preferred embodiment, the angle between the inclined support plate and the horizontal direction is 30-45 degrees.

[0016] In a preferred embodiment, the stair platform template includes an upper platform template and a lower platform template, and the upper surface of the stair platform template is provided with a drainage slope.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] 1. This utility model adopts a cantilever structure, eliminating the need for columns in the stairwell, which greatly saves the internal space of the stairwell and provides a more open operating space for construction personnel and equipment. It also facilitates the stacking and transportation of materials, effectively improving construction efficiency.

[0019] 2. The load of the stair formwork is transferred to the main building structure through the inclined support plates. The setting of multiple inclined support plates makes the stress more uniform. The horizontal connecting plates connect adjacent inclined support plates, which enhances the overall stability of the entire support structure, reduces the deformation caused by external forces during concrete pouring, and improves the quality of stair formation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a front view structural diagram of the present invention.

[0022] Figure 3 This is a side view of the structure of this utility model.

[0023] In the diagram: 1. Staircase formwork; 11. Step formwork; 111. Step unit formwork; 112. Slot; 113. Block; 114. Sealing rubber strip; 12. Staircase platform formwork; 2. Support structure; 21. Inclined support plate; 22. Horizontal connecting plate; 3. Cantilever beam; 31. Main cantilever beam; 32. Secondary cantilever beam; 33. Reinforcing rib; 4. Main building structure; 41. Concrete wall; 42. Concrete base slab. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-3 This utility model provides a cantilevered column-free stair formwork, including a stair formwork 1, a supporting structure 2 and a cantilever beam 3. The stair formwork 1, the supporting structure 2 and the cantilever beam 3 are surrounded by a main building structure 4. The stair formwork 1 includes a step formwork 11 and a stair platform formwork 12. The supporting structure 2 includes multiple inclined support plates 21 and horizontal connecting plates 22. One end of the cantilever beam 3 is fixed to the main building structure 4 and the other end is connected to the stair formwork 1.

[0026] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the inclined support plate 21 is set at an angle, and the upper end of the inclined support plate 21 is connected to the back of the step template 11 or the stair platform template 12 of the stair template 1. The lower end of the inclined support plate 21 is connected to the main building structure 4. The horizontal connecting plate 22 connects the adjacent inclined support plate 21 to enhance the overall stability of the support structure.

[0027] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the step template 11 includes multiple independent step unit templates 111. Adjacent step unit templates 111 are connected by slots 112 and blocks 113. The slots 112 are equipped with sealing rubber strips 114. This not only makes installation convenient, but also ensures the sealing between adjacent step unit templates 111, preventing grout leakage during concrete pouring.

[0028] Further as Figure 1 , Figure 2 and Figure 3As shown, it is worth noting that the cantilever beam 3 includes a main cantilever beam 31 and a secondary cantilever beam 32. The secondary cantilever beam 32 is located directly in front of the main cantilever beam 31. The top of both the main cantilever beam 31 and the secondary cantilever beam 32 are provided with reinforcing ribs 33 and connected to the bottom of the main building structure 4.

[0029] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the connection between the inclined support plate 21 and the main building structure 4 is provided with a pre-embedded connector. The pre-embedded connector is a steel plate with bolt holes. The inclined support plate 21 is fixedly connected to the pre-embedded connector by bolts to ensure a firm and reliable connection.

[0030] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the main building structure 4 includes a concrete wall 41 and a concrete base slab 42. The main cantilever beam 31 and the secondary cantilever beam 32 are connected to the concrete base slab 42 by chemical bolts. The lower end of the inclined support plate 21 is connected to the concrete wall 41 by expansion bolts. The connection method is reliable.

[0031] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the angle between the inclined support plate 21 and the horizontal direction is 30-45 degrees.

[0032] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the stair platform template 12 includes an upper platform template 121 and a lower platform template 122. The upper surface of the stair platform template 12 is provided with a drainage slope to prevent rainwater and other liquids from accumulating on the platform template.

[0033] This scheme has the following working process: During construction, firstly, pre-embedded connectors are embedded in the concrete walls 41 and concrete base slabs 42 of the main building structure 4 according to the design requirements, and installation holes for expansion bolts are reserved. Then, the main cantilever beam 31 is fixed to the concrete base slab 42 with chemical bolts. Next, the lower end of the inclined support plate 21 is fixed to the concrete wall 41 with expansion bolts, and the upper end is connected to the corresponding position on the back of the stair formwork 1 step formwork 11 or stair platform formwork 12. At the same time, the horizontal connecting plate 22 is installed to connect the adjacent inclined support plates 21 to form a stable support structure. Then, the stair formwork 1 is installed. First, the stair platform formwork 12 is installed. The upper platform formwork 121 and the lower platform formwork 122 are accurately connected by the position. Then, the step formwork 11 is installed. The adjacent step unit formwork 111 is connected together by the slot 112 and the block 113 to complete the installation of the stair formwork. After the concrete is poured, the formwork and support structure are removed in reverse order, and each component can be reused.

[0034] As can be seen from the above working process, this utility model adopts a cantilever structure, eliminating the need for columns in the stairwell, thus greatly saving internal space and providing a more open operating space for construction personnel and equipment. It also facilitates the stacking and transportation of materials, effectively improving construction efficiency. The load of the stair formwork 1 is transferred to the main building structure 4 through the inclined support plate 21, and the setting of multiple inclined support plates 21 makes the stress more uniform. The horizontal connecting plate 22 connects adjacent inclined support plates 21, enhancing the overall stability of the entire support structure, reducing deformation caused by external forces during concrete pouring, and improving the quality of stair formation.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A cantilevered, column-free staircase formwork, comprising a staircase formwork (1), a supporting structure (2), and a cantilever beam (3), characterized in that: The stair formwork (1), the supporting structure (2) and the cantilever beam (3) are surrounded by the main building structure (4). The stair formwork (1) includes step formwork (11) and stair platform formwork (12). The supporting structure (2) includes multiple inclined support plates (21) and horizontal connecting plates (22). One end of the cantilever beam (3) is fixed to the main building structure (4) and the other end is connected to the stair formwork (1).

2. The cantilevered column-free staircase formwork according to claim 1, characterized in that: The inclined support plate (21) is inclined and the upper end of the inclined support plate (21) is connected to the back of the step template (11) or the stair platform template (12) of the stair template (1), and the lower end of the inclined support plate (21) is connected to the main building structure (4).

3. The cantilevered column-free staircase formwork according to claim 1, characterized in that: The step template (11) includes multiple independent step unit templates (111). Adjacent step unit templates (111) are connected by slots (112) and blocks (113). A sealing rubber strip (114) is provided in the slot (112).

4. The cantilevered column-free staircase formwork according to claim 1, characterized in that: The cantilever beam (3) includes a main cantilever beam (31) and a secondary cantilever beam (32). The secondary cantilever beam (32) is located directly in front of the main cantilever beam (31). The top of both the main cantilever beam (31) and the secondary cantilever beam (32) are provided with reinforcing ribs (33) and are connected to the bottom of the main building structure (4).

5. The cantilevered column-free staircase formwork according to claim 1, characterized in that: The inclined support plate (21) is provided with a pre-embedded connector at the connection between it and the main building structure (4). The pre-embedded connector is a steel plate with bolt holes. The inclined support plate (21) is fixedly connected to the pre-embedded connector by bolts.

6. The cantilevered column-free staircase formwork according to claim 4, characterized in that: The main building structure (4) includes a concrete wall (41) and a concrete base slab (42). The main cantilever beam (31) and the secondary cantilever beam (32) are connected to the concrete base slab (42) by chemical bolts. The lower end of the inclined support plate (21) is connected to the concrete wall (41) by expansion bolts.

7. The cantilevered column-free staircase formwork according to claim 1, characterized in that: The angle between the inclined support plate (21) and the horizontal direction is 30-45 degrees.

8. The cantilevered column-free staircase formwork according to claim 1, characterized in that: The stair platform template (12) includes an upper platform template (121) and a lower platform template (122), and the upper surface of the stair platform template (12) is provided with a drainage slope.

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