CN204728685U - For the wall-connecting piece of fastener type steel pipe external scaffolding - Google Patents

Abstract

The utility model discloses a kind of wall-connecting piece for fastener type steel pipe external scaffolding, comprise for support scaffolding support member, be positioned at support member side and the fixture be sheathed on support member and for fixture being fixed on the securing member on body of wall, wherein, securing member offers multiple installing hole, during use, fixture is fixed on body of wall by fasteners through mounting holes.The wall-connecting piece for fastener type steel pipe external scaffolding that the utility model proposes, is applicable to highrise building, and dismounting is simultaneously simple and stable to scaffold support.

Description

Wall fittings for fastener type steel pipe external scaffolding

technical field

The utility model relates to the technical field of building construction auxiliary equipment, in particular to a wall connecting piece used for a fastener type steel pipe outer scaffold.

Background technique

In the field of building construction, the "Safety Technical Specifications for Construction Fastener Type Steel Pipe Scaffolding" (JGJ130) has clear regulations on the installation of scaffolding wall parts. The number of wall parts should meet the stability requirements of the poles; the strength and stability of the wall parts The connection strength and connection strength should meet the requirements of the current national standards; the setting of the connecting wall parts should also meet the maximum spacing requirements specified in the specifications.

With more and more high-rise frame shear wall structure buildings, most of the outer walls adopt shear wall structure, and the wall is longer, which is greater than the maximum spacing requirement set by the connecting wall parts. If there is no requirement, it is necessary to find other ways to attach the wall.

The wall-attached connection methods available for the wall-connected parts of the shear wall are as follows:

1) The method of tie bars and top bracing is only applicable to floor-standing scaffolds with a height below 24m, while high-rise buildings must be erected with cantilevered scaffolds, this method is not applicable;

2) Bolt connection method, reserve holes or drill holes in the shear wall, wear ordinary bolts as wall parts, and use large formwork construction to use the remaining tension bolt holes. This method is relatively poor in connection strength and stability with scaffolding. However, the external walls of general projects have external insulation. Before the construction of the insulation project, the opening must be sealed, and the wall parts must be removed, so the stability of the frame cannot be guaranteed;

3) Pre-embedded method. Before concrete pouring, the embedded parts are buried in the shear wall. After the concrete pouring is completed, the steel pipes and pre-embedded steel plates are welded as wall parts. The advantage of the pre-embedded wall connection is good rigidity, but the disadvantages are high cost, troublesome disassembly, welding work is carried out on scaffolding, the quality of the weld is not easy to guarantee, and there is a fire hazard. The embedded parts are easy to shift during the concrete pouring process, and cannot be connected with the inner and outer poles at the same time.

There are limitations and defects in the above three wall-attached connection methods.

Utility model content

The main purpose of the utility model is to provide a wall connecting piece for fastener-type steel pipe outer scaffolding, which is suitable for high-rise buildings, and at the same time, it is easy to disassemble and supports stable scaffolding.

In order to achieve the above purpose, the utility model provides a wall connecting piece for fastener-type steel pipe outer scaffolding, including a support for supporting the scaffold, a support located on one side of the support and sleeved on the support A fixing piece, and a fastener used to fix the fixing piece on a wall, wherein the fastener is provided with a plurality of installation holes, and the fastener passes through the installation holes during use Fix the fixture on the wall.

Preferably, the fixing member is a flange, the supporting member is a steel pipe, and the fastening member is an expansion bolt.

Preferably, the disc surface of the flange is arranged perpendicular to the axis of the steel pipe.

Preferably, the support member is fixedly connected to the flange plate by welding.

Preferably, the outer diameter of the steel pipe is smaller than the diameter of the hole of the flange.

The wall connecting piece proposed by the utility model has the following beneficial effects.

1. The structure of the connecting wall is simple, the design structure is reasonable, and it is easy to realize, which can effectively solve the problem of attachment and connection of the external scaffolding of the high-rise frame shear wall structure.

2. Bolts cannot be removed without special tools, thereby eliminating the hidden danger of random removal of scaffolding and wall parts, and strengthening safety management.

3. The setting position is accurate. According to the design and the position of the main node, the position of the wall parts can be accurately set. Because the connecting wall parts can effectively prevent the lateral bending instability or overturning of the scaffold in the vicinity of the main node, if the connecting wall parts are set far from the main node, due to the poor bending rigidity of the vertical rod, local bending will occur due to the vertical rod. Weakening does not even play a role in constraining the lateral deformation of the scaffold.

4. Weld seam quality is guaranteed. The welding of the steel pipe and the flange can be carried out on the ground. When welding, the operator can choose the best welding position, and there is no need to perform welding work on the scaffold body, eliminating the corresponding fire hazard.

5. It is convenient for scaffolding operators to install and dismantle.

6. It can be used repeatedly. After the scaffolding is removed, the wall parts can be used next time, realizing continuous turnover.

7. Compared with the pre-embedded connection technology, it has the advantages of simple construction, flexible use, and less time limit. The design tensile force of the expansion bolt is related to the diameter of the bolt. According to the axial force borne by the wall, the expansion bolt that meets the design requirements can be selected. The flange wall of the expansion bolt only needs to be set according to the height of the wall. , you can choose expansion bolts of different specifications, which not only meet the design requirements, but also reduce economic investment appropriately, and can be used in high-rise buildings at the same time.

Description of drawings

Fig. 1 is a structural schematic diagram of a preferred embodiment of the wall connecting piece used in the fastener type steel pipe outer scaffold of the present invention.

Among the figure, 10-flange, 11-disc hole, 20-steel pipe.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that, in the description of the present utility model, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description , does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Referring to Fig. 1, Fig. 1 is a structural schematic diagram of a preferred embodiment of the wall connecting piece used in the fastener type steel pipe outer scaffold of the present invention.

In this preferred embodiment, the wall connecting piece used for the fastener-type steel pipe outer scaffold includes a support for supporting the scaffold, a fixing piece located on one side of the support and sleeved on the support, and a fixing piece for The fastener fixed on the wall, wherein, the fastener is provided with a plurality of installation holes, and when in use, the fastener passes through the installation holes to fix the fastener on the wall.

In this embodiment, the fixing part is a flange 10, the supporting part is a steel pipe 20, and the fastening part is an expansion bolt. Certainly, in other modified embodiments, the flange 10 may also be a steel plate, and the steel pipe 20 may be a steel bar, which is not limited in the present invention. The support member is fixedly connected with the flange 10 by welding. The outer diameter of the steel pipe 20 is smaller than the diameter of the hole 11 on the flange 10 . In this embodiment, the diameter of the disc hole 11 is 50mm, the size of the steel pipe 20 is 48mm*3.5mm, and the expansion bolt is a bolt with a diameter of 10mm.

The disc surface of the flange 10 is vertically arranged with the axis of the steel pipe 20, and when set up like this, after the wall parts are installed, the steel pipe 20 can be kept perpendicular to the wall, so as to realize stable support to the scaffold.

When using this connecting wall piece, first insert the φ48mm steel pipe 20 into the disk hole 11 on the flange 10 with a diameter of 50mm, and weld the steel pipe 20 and the flange 10 along the outer diameter of the steel pipe 20 to form a tool type connection. After the wall parts, when the shear wall formwork is removed, according to the design of the scaffolding wall parts and the position of the main node, drill holes in the shear wall according to the selected expansion bolt diameter, and fix the tool type wall parts with expansion bolts. And it is connected with the scaffold with fasteners to achieve the stability of the external scaffold.

The wall connecting piece proposed in this embodiment has the following beneficial effects.

1. The wall connecting piece has a simple structure, a reasonable design structure, and is easy to implement, which can effectively solve the problem of attachment and connection of the external scaffolding of the high-rise frame shear wall structure.

2. Bolts cannot be removed without special tools, thereby eliminating the hidden danger of random removal of scaffolding and wall parts, and strengthening safety management.

3. The setting position is accurate. According to the design and the position of the main node, the position of the wall parts can be accurately set. Because the connecting wall parts can effectively prevent the lateral bending instability or overturning of the scaffold in the vicinity of the main node, if the connecting wall parts are set far from the main node, due to the poor bending rigidity of the vertical rod, local bending will occur due to the vertical rod. Weakening does not even play a role in constraining the lateral deformation of the scaffold.

4. Weld seam quality is guaranteed. The welding of the steel pipe 20 and the flange 10 can be carried out on the ground. During welding, the operator can choose the best welding position, and there is no need to carry out the welding operation on the scaffold body, which eliminates the corresponding fire hazard.

5. It is convenient for scaffolding operators to install and dismantle.

6. It can be used repeatedly. After the scaffolding is removed, the wall parts can be used next time, realizing continuous turnover.

7. Compared with the pre-embedded connection technology, it has the advantages of simple construction, flexible use, and less time limit. The design tensile force of the expansion bolt is related to the diameter of the bolt. According to the axial force borne by the wall, you can choose the expansion bolt that meets the design requirements. You only need to choose the expansion bolt of different specifications according to the height of the wall. , not only meet the design requirements, but also reduce the economic investment appropriately, and can be used in high-rise buildings at the same time.

The above are only preferred embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. All equivalent structural transformations made by using the description of the utility model and the contents of the accompanying drawings are directly or indirectly used in other related technical fields. All are included in the scope of patent protection of the utility model in the same way.

Claims (5)

1. the wall-connecting piece for fastener type steel pipe external scaffolding, it is characterized in that, comprise for support scaffolding support member, be positioned at described support member side and the fixture be sheathed on described support member and for described fixture being fixed on the securing member on body of wall, wherein, described securing member offers multiple installing hole, during use, described fixture is fixed on body of wall through described installing hole by described securing member.

2., as claimed in claim 1 for the wall-connecting piece of fastener type steel pipe external scaffolding, it is characterized in that, described fixture is flange, and described support member is steel pipe, and described securing member is expansion bolt.

3., as claimed in claim 2 for the wall-connecting piece of fastener type steel pipe external scaffolding, it is characterized in that, the disc face of described flange and the axes normal of described steel pipe are arranged.

4., as claimed in claim 2 for the wall-connecting piece of fastener type steel pipe external scaffolding, it is characterized in that, described support member and described flange are fixedly connected by welding.

5. as the wall-connecting piece for fastener type steel pipe external scaffolding in claim 2 to 4 as described in any one, it is characterized in that, the external diameter of described steel pipe is less than the diameter of the disk hole of described flange.