CN214302796U - Novel overhanging type scaffold - Google Patents

Abstract

The utility model discloses a novel overhanging type scaffold, which comprises a plurality of cantilever beams, wherein one end part of each cantilever beam is fixed on a bottom floor slab through at least one pre-buried snap ring component, the pre-buried snap ring component comprises a U-shaped snap ring and a pair of wedge blocks, the U-shaped snap ring is provided with two pre-buried sections and a U-shaped section, the cantilever beam passes through the U-shaped section from the inner side, and the pair of wedge blocks are oppositely staggered, tightly propped between the cantilever beam and the U-shaped section and are welded and fixed with the cantilever beam; one end part of each support rod is fixedly welded with an embedded part embedded on the wall body, the other end part of each support rod is fixedly welded with the corresponding cantilever beam, and connecting section steel is welded between every two adjacent cantilever beams through angle steel; scaffold frame subassembly, including a plurality of pole settings, a plurality of horizontal pole and a plurality of fastener, the welding of setting for the interval on the cantilever beam has a pair of location muscle, and every pole setting tip is fixed mutually with corresponding location muscle, between two adjacent pole settings, through the fastener fastening between pole setting and the horizontal pole.

Description

Novel overhanging type scaffold

Technical Field

The utility model relates to a building tool technical field, in particular to safe and reliable's novel formula scaffold frame of encorbelmenting more.

Background

The overhanging type scaffold is an external scaffold for construction, wherein the load in the vertical direction of the overhanging type scaffold is transmitted to a main structure of a building through a bottom section steel support frame, and the overhanging type scaffold belongs to simple facilities used in the building and generally comprises two types, wherein one type is used as an overhanging layer, and the other type is used as a multi-layer overhanging layer. The overhanging type scaffold is suitable for high-rise buildings or high-rise structures with the height of not more than 100m, and the height of the scaffold on the upper part of each section steel support frame is not more than 24m (wherein JGJ130-2019 is regulated and is not more than 20 m). It typically comprises a steel profile support frame, a clip-on steel pipe scaffolding, and wall connectors.

In the existing overhanging scaffold, a cantilever beam is generally welded and fixed with an embedded part on a main structural surface (i.e. a cast-in-place surface or a floor surface) of a building or fixed by a snap ring. By adopting the embedded part welded and fixed structure, the welding position between the cantilever beam and the floor surface is usually a plurality of welding points, each welding point has a plurality of welding seams, the stress of the welding position is large and uneven, the construction is complicated, and the time and the labor are consumed. The structure that the snap ring is fixed is more commonly used, and it is integrative pouring in the reinforcing bar of floor with the snap ring is pre-buried usually, passes the cantilever beam from the snap ring, utilizes the snap ring to fix cantilever beam one end on the floor, and its another tip that stretches out the building subject outside is as the strong point of scaffold. However, a space is usually left between the clamping ring and the cantilever beam, and other parts need to be plugged in for clamping, so that the cantilever beam is prevented from being loosened by vibration. For example, a wooden wedge block is usually adopted for clamping, and the wooden wedge block is easily extruded and deformed, so that the cantilever beam mainly stressed still can be loosened, and great potential safety hazards exist. In addition, the length of the cantilever beam extending out of the building main body is obviously longer than the length of the cantilever beam fixed with the floor, so that the extended cantilever beam is easy to deform after being subjected to a larger load in the vertical direction, and the stability and the safety and the reliability of the support are influenced. Finally, the uprights supported on the outriggers are usually welded and fixed to the outriggers, which is disadvantageous for the assembly and disassembly of the uprights in a multi-layer overhanging scaffolding structure.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a simple structure, support more firm, safe and reliable's novel formula scaffold frame of encorbelmenting more.

For this, the utility model provides a novel overhanging type scaffold erects in the outside of building subject, and building subject includes multilayer floor, forms at the structure roof beam of every floor bottom, forms the wall body between adjacent two-layer floor, overhanging type scaffold includes:

each cantilever beam extends horizontally, one end of each cantilever beam is fixed on the bottom floor slab through at least one embedded snap ring assembly, the other end of each cantilever beam extends to the outer side of the building main body, each embedded snap ring assembly comprises a U-shaped snap ring and a pair of wedge blocks, each U-shaped snap ring is provided with two embedded sections which extend horizontally and are embedded in the bottom floor slab, and a U-shaped section connected between the two embedded sections, each cantilever beam penetrates through the inner side of the U-shaped section, and the pair of wedge blocks are oppositely staggered, abut against the position between the cantilever beam and the U-shaped section and are welded and fixed with the cantilever beam;

one end of each support rod is fixedly welded with an embedded part embedded in the wall body, the other end of each support rod is fixedly welded with a corresponding cantilever beam, the cantilever beams, part of the wall body and the support rods form a triangular support structure, and connecting section steel is welded between every two adjacent cantilever beams through angle steel;

scaffold frame subassembly, including a plurality of pole settings, a plurality of horizontal pole and a plurality of fastener, the welding of setting for the interval on the cantilever beam has a pair of location muscle, and every pole setting tip is fixed mutually with corresponding location muscle, between two adjacent pole settings, through the fastener fastening between pole setting and the horizontal pole.

In the above technical scheme, preferably, the cantilever beam and the connection section steel are hot-rolled I-shaped steel, the height of the connection section steel is compared with the height of the cantilever beam by 5cm, the flange width of the connection section steel is compared with the flange width of the cantilever beam by 5-10 cm, the web thickness of the connection section steel is smaller than or equal to the web thickness of the cantilever beam, and the flange thickness of the connection section steel is smaller than or equal to the flange thickness of the cantilever beam.

Among the above-mentioned technical scheme, preferred, the shape of wedge is two right-angle sides rectangular triangle not of uniform length, and its longer right-angle side is fixed with the upper surface welding of cantilever beam.

Among the above-mentioned technical scheme, it is preferred, U-shaped snap ring forms for round steel bar processing, round steel bar diameter is 25 ~ 32 mm.

In the above technical scheme, preferably, the embedded part is an ME type or MF type embedded part, and the thickness of the steel plate is 12-18 mm.

In the above technical solution, preferably, the cantilever beam is made of Q235B steel or Q345B steel.

In the above technical scheme, preferably, the positioning rib is deformed steel bar, the diameter of the positioning rib is 5-8 mm smaller than that of the vertical rod, and the length of the positioning rib is 20-30 cm.

Compared with the prior art, the utility model has the advantages as follows:

1. the cantilever beam is fastened through the U-shaped clamp ring and the pair of wedge blocks, the pair of wedge blocks are oppositely staggered and tightly abutted between the cantilever beam and the U-shaped clamp ring and are welded and fixed with the U-shaped clamp ring, and the support rod, the cantilever beam and part of the wall body form a triangular support structure, so that the cantilever beam is reliably connected with the building main body, and the support is more stable, safe and reliable;

2. the connecting section steel is welded between the cantilever beams, so that the support property of the cantilever beams can be enhanced, and the phenomena that the stress of the cantilever beams is uneven in the horizontal direction and the out-of-plane instability is generated are avoided;

3. the vertical rods are fixed by welding a pair of positioning ribs on the cantilever beam at set intervals, so that the vertical rods are prevented from moving, and the cantilever beam is more compact in structure, reasonable in layout and easy to construct.

Drawings

FIG. 1 is a schematic structural view of the present invention installed outside a building body;

FIG. 2 is a schematic structural view of a U-shaped clasp of the present invention;

fig. 3 is a schematic structural diagram of the wedge block of the present invention;

fig. 4 is a schematic view of a fixing structure of the cantilever beam and the pre-buried snap ring assembly of the present invention;

FIG. 5 is a side schematic view of the fixation structure shown in FIG. 4;

FIG. 6 is a schematic view of the triangular supporting structure of the cantilever beam, the supporting rod, the wall body and the connecting section steel of the present invention;

FIG. 7 is a schematic view of the connection structure of the cantilever beam shown in FIG. 6 and the connection section steel;

wherein the reference numbers are as follows:

100-novel overhanging type scaffold; 200-a building body; 201-floor slab; 202-structural beam; 203-a wall body;

1-cantilever beam;

2-pre-embedding a snap ring assembly; 21-U-shaped snap ring; 211-pre-buried section; 212-U-shaped section; 22-a wedge-shaped block;

3-supporting rods;

4-embedding;

5-angle steel;

6-connecting section steel;

7-scaffold assembly; 71-vertical rod; 72-a cross-bar; 73-fasteners;

8-positioning ribs.

Detailed Description

It is easily understood that, according to the technical solution of the present invention, a person skilled in the art can propose various alternative structural modes and implementation modes without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.

In the present specification, terms of orientation such as up, down, horizontal, bottom, outer, inner, and opposing are defined with respect to the structure shown in the drawings, and they are relative terms, and thus may be changed depending on the position and the usage state. Therefore, these and other directional terms should not be construed as limiting terms.

The utility model provides a cantilever type scaffold 100, it includes cantilever beam 1, pre-buried snap ring subassembly 2, bracing piece 3, buries 4, angle steel 5, connection shaped steel 6, scaffold subassembly 7 and location muscle 8. The structural components and advantages of the present invention will be described in detail with reference to fig. 1 to 7.

As shown in fig. 1, a novel cantilever scaffold 100 is mainly erected on the outer side of a building body 200 to be used as an external scaffold for construction. The building body 200 includes a plurality of floors 201, a structural beam 202 formed at the bottom of each floor 201, and a wall 203 formed between two adjacent floors 201.

The cantilever beams 1 are generally provided in plurality as a basic supporting structure, each cantilever beam 1 extends horizontally, one end of each cantilever beam is fixed on the bottom floor 201 through two embedded snap ring assemblies 2, and the other end of each cantilever beam extends to the outer side of the building body 200. In this example, the cantilever beam 1 is hot rolled I-steel, and the I-steel is Q235B steel or Q345B steel.

With reference to fig. 2 to 5, the pre-buried snap ring assembly 2 includes a U-shaped snap ring 21 and a pair of wedge blocks 22, the U-shaped snap ring 21 has two pre-buried sections 211 extending horizontally and pre-buried in the bottom floor 201, and a U-shaped section 212 connected between the two pre-buried sections 211, the cantilever beam 1 passes through from the inner side of the U-shaped section 212, and the pair of wedge blocks 22 are oppositely staggered, tightly abutted between the cantilever beam 1 and the U-shaped section 212 and are welded and fixed with the cantilever beam 1. In this example, the U-shaped clamp ring 21 is formed by processing a round steel bar, and the diameter of the round steel bar is 25-32 mm. The wedge block 22 is in the shape of a right-angled triangle with two right-angled sides of different lengths, and the longer right-angled side of the wedge block is welded and fixed with the upper surface of the cantilever beam 1.

As shown in fig. 1 and 6 to 7, a plurality of support rods 3 are provided, the number of the support rods corresponds to that of the cantilever beams 1, one end of each support rod 3 is welded and fixed to the embedded part 4 embedded in the wall 203, and the other end of each support rod 3 is welded and fixed to the corresponding cantilever beam 1. Cantilever beam 1, partial wall body 203 and bracing piece 3 three constitute triangle-shaped bearing structure, have between two adjacent cantilever beams 1 through the welding of angle steel 5 connecting profile steel 6. The welding has connection shaped steel 6 between the cantilever beam 1, can strengthen the support nature of cantilever beam 1, avoids cantilever beam 1 atress inequality on the horizontal direction, produces the out-of-plane unstability.

In this example, the embedded part 4 is an ME type or MF type embedded part, and the thickness of the steel plate is 12 to 18 mm. The connecting section steel 6 is also hot-rolled I-shaped steel, the height H of the connecting section steel 6 is 5cm lower than the height H of the cantilever beam 1, the flange width of the connecting section steel 6 is 5-10 cm smaller than the flange width of the cantilever beam 1, the web thickness of the connecting section steel 6 is smaller than or equal to that of the cantilever beam 1, and the flange thickness of the connecting section steel 6 is smaller than or equal to that of the cantilever beam 1.

Referring again to fig. 1, the scaffolding assembly 7 comprises a plurality of uprights 71, a plurality of crossbars 72 and a plurality of fasteners 73. A pair of positioning ribs 8 are welded on the cantilever beam 1 at intervals of a set interval, the lower end part of each vertical rod 71 is fixed with the corresponding pair of positioning ribs 8, and the adjacent two vertical rods 71 and the cross rod 72 are fastened through fasteners 73. In this example, the upright 71 and the cross bar 72 are both steel pipes, and the fastener 73 is a clamp member. The positioning ribs 8 are made of deformed steel bars, the diameter of the positioning ribs is 5-8 mm smaller than that of the vertical rods 71, and the length of the positioning ribs is 20-30 cm.

In conclusion, the cantilever beam 1 is fastened through the U-shaped snap ring 21 and the pair of wedge blocks 22, the pair of wedge blocks 22 are oppositely staggered and tightly abutted between the cantilever beam 1 and the U-shaped snap ring 21 and are welded and fixed with the U-shaped snap ring 21, and the support rod 3, the cantilever beam 1 and part of the wall body 203 form a triangular support structure, so that the cantilever beam 1 is reliably connected with the building main body 200, and the support is more stable, safer and more reliable. The vertical rod 71 is fixed by welding a pair of positioning ribs on the cantilever beam 1 at set intervals, so that the vertical rod is prevented from moving, and the structure is more compact, reasonable in layout and easy to construct.

The technical scope of the present application is not limited to the contents in the above description, and those skilled in the art can make various changes and modifications to the above embodiments without departing from the technical spirit of the present application, and these changes and modifications should fall within the protective scope of the present application.

Claims (7)

1. The utility model provides a novel overhanging type scaffold erects the outside at building subject (200), building subject (200) include multilayer floor (201), form at structural beam (202) of every layer of floor (201) bottom, form wall body (203) between adjacent two-layer floor (201), its characterized in that, overhanging type scaffold includes:

the cantilever beam structure comprises a plurality of cantilever beams (1), wherein each cantilever beam (1) extends horizontally, one end of each cantilever beam is fixed on a bottom floor (201) through at least one embedded snap ring component (2), the other end of each cantilever beam extends to the outer side of a building main body (200), each embedded snap ring component (2) comprises a U-shaped snap ring (21) and a pair of wedge blocks (22), each U-shaped snap ring (21) is provided with two embedded sections (211) which extend horizontally and are embedded in the bottom floor (201), and a U-shaped section (212) connected between the two embedded sections (211), each cantilever beam (1) penetrates through the inner side of the U-shaped section (212), and the pair of wedge blocks (22) are oppositely staggered and tightly abutted between the cantilever beam (1) and the U-shaped section (212) and are fixedly welded with the cantilever beam (1);

the cantilever beam supporting structure comprises a plurality of supporting rods (3), wherein one end part of each supporting rod (3) is fixedly welded with an embedded part (4) embedded in a wall body (203), the other end part of each supporting rod is fixedly welded with a corresponding cantilever beam (1), the cantilever beams (1), part of the wall body (203) and the supporting rods (3) form a triangular supporting structure, and connecting section steel (6) is welded between every two adjacent cantilever beams (1) through angle steel (5);

scaffold subassembly (7), including a plurality of pole settings (71), a plurality of horizontal pole (72) and a plurality of fastener (73), cantilever beam (1) is gone up every and is set for the interval welding and have a pair of location muscle (8), every pole setting (71) lower tip is fixed mutually with corresponding location muscle (8), adjacent two between pole setting (71) with pass through between horizontal pole (72) fastener (73) fastening.

2. The new cantilever scaffold of claim 1, wherein: cantilever beam (1) with connection shaped steel (6) are hot rolling type I steel, the height of connection shaped steel (6) is compared the height of cantilever beam (1) is low 5cm, the edge of a wing width of connection shaped steel (6) is compared the edge of a wing width of cantilever beam (1) is little 5 ~ 10cm, the web thickness of connection shaped steel (6) is less than or equal to the web thickness of cantilever beam (1), the edge of a wing thickness of connection shaped steel (6) is less than or equal to the edge of a wing thickness of cantilever beam (1).

3. The new cantilever scaffold of claim 1, wherein: the wedge block (22) is in the shape of a right-angled triangle with two right-angled sides of different lengths, and the longer right-angled side of the wedge block is fixedly welded with the upper surface of the cantilever beam (1).

4. The new cantilever scaffold of claim 1, wherein: the U-shaped clamping ring (21) is formed by processing round steel bars, and the diameter of each round steel bar is 25-32 mm.

5. The new cantilever scaffold of claim 1, wherein: the embedded part (4) is an ME type or MF type embedded part, and the thickness of a steel plate of the embedded part is 12-18 mm.

6. The new cantilever scaffold of claim 1, wherein: the cantilever beam (1) is made of Q235B steel or Q345B steel.

7. The new cantilever scaffold of claim 1, wherein: the positioning ribs (8) are made of deformed steel bars, the diameter of the positioning ribs is 5-8 mm smaller than that of the vertical rods (71), and the length of the positioning ribs is 20-30 cm.

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