Super-long wall connecting piece of external scaffold

Abstract

The utility model discloses a super-long wall connecting piece of an external scaffold, and relates to the technical field of building construction. The connecting structure comprises an M20 high-strength bolt which is pre-embedded in a main body structure; short steel pipes are welded on the upper surface and the lower surface of the cantilever I-shaped steel beam; the two ends of the double-steel-pipe wall connecting piece are connected with the short steel pipes and the external scaffold in a buckled mode respectively, and reinforcing is conducted through the transverse short steel pipes at intervals. The steel pipe fastener lantern frame is arranged at the front end of the I-shaped steel and connected with the double-steel-pipe wall connecting piece. The cantilever I-shaped steel is fixed through the embedded bolts to serve as an extension base, the double-steel-pipe wall connecting piece and the lantern frame support are combined, the problems that a traditional wall connecting piece is difficult to fix at the structural hollow-out position and poor in stability are solved, and the wall connecting piece has the advantages of being efficient in construction, low in cost and high in adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to an ultra-long wall tie for external scaffolding. Background Technology

[0002] As building structures develop towards larger spans, greater heights, and more openwork designs, the installation of traditional wall ties for external scaffolding faces the following challenges:

[0003] 1. Erecting full-span scaffolding inside the floor: This method has drawbacks such as lack of support at the top of the scaffolding, conflict with internal formwork, and high material costs.

[0004] 2. Adding a grid frame at the structural column: When the height is too high, the stability is poor and there are great safety hazards.

[0005] Existing technologies make it difficult to stably install wall ties in structural openwork or recessed areas, and this can easily affect the main construction. Therefore, there is an urgent need for a technical solution that can reliably fix wall ties while avoiding interference with the main construction. Utility Model Content

[0006] The purpose of this utility model is to provide an extra-long wall tie for external scaffolding to solve existing problems.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to an extra-long wall tie for external scaffolding, comprising:

[0009] M20 high-strength bolts pre-embedded in the main structure;

[0010] The cantilevered I-beam, which is fixed by the bolts, has short steel pipes welded to its upper and lower surfaces.

[0011] The double steel pipe wall tie is connected at both ends to the short steel pipe and the external scaffolding, respectively.

[0012] The steel pipe fastener lantern frame located at the front end of the I-beam is connected to the double steel pipe wall connector.

[0013] Furthermore, the cantilevered I-beam is a 16# I-beam with a base steel plate welded to its end.

[0014] Furthermore, the double steel pipe wall ties are reinforced with transverse short steel pipes at intervals.

[0015] Furthermore, the horizontal short steel pipes are spaced 1m apart, and the lantern frame is 1m × 1m in size.

[0016] Furthermore, the short steel pipes welded to the upper and lower surfaces of the I-beam are both 200mm in length and are connected to the I-beam by full welding.

[0017] Furthermore, the base steel plate is fixedly connected to the M20 high-strength bolts pre-embedded in the main structure.

[0018] This utility model has the following beneficial effects:

[0019] High stability: The combination design of double steel pipe wall ties and lantern frame ensures the horizontal and vertical stability of the extra-long wall ties.

[0020] Highly efficient construction: No need to erect full-floor scaffolding inside the building, reducing material transportation and labor costs.

[0021] Highly adaptable: Suitable for complex working conditions such as large spans, high floors, and irregular structures, meeting the "two-step three-span" or "three-step three-span" settings required by specifications.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the overall structure of an ultra-long wall tie for external scaffolding;

[0025] Figure 2 This is a construction process flow diagram for an ultra-long wall tie component for external scaffolding. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 As shown, this utility model is an extra-long wall tie for external scaffolding, comprising:

[0028] Pre-embedded bolt assembly: M20 high-strength bolts 2 are pre-embedded during the construction of the main structure 1 to fix the cantilevered I-beam.

[0029] Cantilevered I-beam 3: Made of 16# I-beam, with a base plate 4 at the end, and fixed to the main structure 1 by pre-embedded bolts 2, serving as an extension base for the wall tie.

[0030] Double steel pipe wall tie 5: Short steel pipes 6 (200mm long, fully welded) are welded to the upper and lower surfaces of the I-beam. One end of the wall tie steel pipe is fastened to the short steel pipe, and the other end is connected to the external scaffolding. The upper and lower steel pipes are horizontally tied with short steel pipes 6 at intervals of 1m to form an integral structure that meets the requirements for slenderness ratio and bending resistance.

[0031] Lantern frame support: A 1m×1m steel pipe fastener lantern frame 7 is erected 2m from the front end of the I-beam and fastened to the double steel pipe wall connector 5 to enhance vertical stability.

[0032] Please see Figure 2 As shown in the figure, this embodiment illustrates the construction steps for an extra-long wall tie for external scaffolding:

[0033] Step 1: Materials and Preparations

[0034] Materials such as I-beams and embedded bolts must meet the design specifications and pass inspection before being brought to the site.

[0035] Use BIM technology to plan the positions of I-beams and lantern frames to avoid conflicts with the formwork support.

[0036] Step 2, positioning of pre-embedded bolts: Measure and lay out the lines according to the cantilever frame plan, and pre-embed bolts after the formwork is drilled to ensure that it does not shift during concrete pouring.

[0037] Step 3: I-beam installation: After the concrete strength reaches 12MPa, install the I-beams. Weld short steel pipes to the upper and lower surfaces, with a weld length ≥108.8mm and a height ≥3mm.

[0038] Step 4: Overlapping of wall ties: After the concrete strength reaches 15MPa, fasten the double steel pipes to the external scaffolding, and reinforce with short horizontal steel pipes at 1m intervals.

[0039] Step 5: Lantern frame erection: A 1m×1m lantern frame is set 2m from the front end of the I-beam, with a step distance of 1800mm, and is fastened to the wall tie to form an integral whole.

[0040] It should be further noted that the pull-out resistance of the pre-embedded bolts is ≥90kN (test value); the double-ended bolts are S8.8 grade M20×225mm; the distance between the first-layer horizontal pole of the lantern frame and the bottom of the upright is ≤200mm.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An overhang super-long wall connector, characterized in that, include: M20 high-strength bolts pre-embedded in the main structure; A cantilevered I-beam fixed with bolts, with short steel pipes welded to its upper and lower surfaces; Double steel pipe wall tie, with both ends respectively connected to the short steel pipe and the external scaffolding; The steel pipe fastener lantern frame, located at the front end of the I-beam, is connected to the double steel pipe wall tie.

2. The super-long wall tieback member of claim 1, wherein, The cantilevered I-beam is made of 16# I-beam with a base steel plate welded to the end.

3. The super-long wall tieback member of claim 1, wherein, The double steel pipe wall ties are reinforced by horizontal short steel pipes at intervals.

4. The super-long wall tieback member of claim 3, wherein, The horizontal short steel pipes are spaced 1m apart, and the lantern frame is 1m x 1m in size.

5. The super-long wall tieback member of claim 1, wherein, The short steel pipes welded to the upper and lower surfaces of the I-beam are both 200mm in length and are connected to the I-beam by full welding.

6. The super-long wall tieback of an external scaffold of claim 2, wherein, The base steel plate is fixedly connected to the M20 high-strength bolts pre-embedded in the main structure.

Images