阅读说明：本技术 外脚手架连墙结构及施工方法 (External scaffold wall connecting structure and construction method ) 是由 饶明和 于 2019-11-18 设计创作，主要内容包括：本发明外脚手架连墙结构及施工方法,利用预埋在混凝土外墙上的预埋件以及连接在预埋件上的连墙件,实现外脚手架与建筑外墙的紧密连接。本发明结构中连墙件连接牢固,成本低廉,安装便捷,且在外脚手架拆除后,外墙上没有明显痕迹,不影响建筑表面美观,免除了后期补孔的人工作业,提高了施工效率,节省人力成本。(The invention relates to an external scaffold wall connecting structure and a construction method, which utilize an embedded part embedded in a concrete outer wall and a wall connecting part connected to the embedded part to realize the tight connection of an external scaffold and a building outer wall. The wall connecting piece in the structure is firm in connection, low in cost and convenient and fast to install, no obvious trace exists on the outer wall after the outer scaffold is dismantled, the attractiveness of the building surface is not influenced, manual operation of hole patching at the later stage is omitted, the construction efficiency is improved, and the labor cost is saved.)

1. An external scaffold wall connecting structure and a construction method are characterized in that: the method comprises the following construction steps:

A. horizontally embedding bolts (4) in the building outer wall (3) according to the interval required by a drawing, exposing screw teeth of the bolts (4) outside the building outer wall (3), and wrapping the screw teeth before concrete is poured;

B. after the building outer wall (3) is poured, the thread is wrapped and torn off, the through hole of the connecting plate (21) of the wall connecting piece (2) is sleeved in the thread, and a gasket and a nut are mounted on the thread;

C. then connecting the steel pipe (22) of the wall connecting piece (2) with the external scaffold (1) through a fastener;

D. after the construction is finished, the wall connecting piece (2) is detached, stored or transferred to the next construction site for use, and exposed screw threads on the building outer wall (3) are cut off by using a cutting machine if needed.

2. The external scaffolding wall connecting structure and construction method according to claim 1, wherein: the wall connecting piece (2) comprises a steel pipe (22) and a connecting plate (21), the connecting plate (21) is fixedly welded with the end of the steel pipe (22), a through hole matched with the exposed part of the bolt (4) is formed in the connecting plate (21), and the exposed part of the bolt (4) penetrates through the through hole and is anchored by using a nut and an elastic cushion.

3. The external scaffolding wall-connecting structure as claimed in claim 2, wherein: the connecting plate (21) is rectangular, the through hole is positioned at the upper part of the rectangle, and the end part of the steel pipe (22) is fixedly welded at the lower part of the connecting plate (21).

4. An external scaffold wall connecting structure and a construction method are characterized in that: the method comprises the following construction steps:

A. embedding an L-shaped embedded part (5) in the building outer wall (3) according to the interval required by a drawing, exposing one section of one edge of the L-shaped embedded part (5) to the outer side of the building outer wall (3), and wrapping the exposed part before concrete is poured;

B. after the building outer wall (3) is poured, tearing off the exposed part of the package, and fixedly connecting the wall connecting piece (2) with the exposed part of the L-shaped embedded part (5);

C. then the wall connecting piece (2) is connected with the external scaffold (1) through a fastener;

D. and after the construction is finished, the wall connecting piece (2) is detached, the wall connecting piece is stored or transferred to the next construction site for use, and if necessary, the exposed L-shaped embedded part (5) on the building outer wall (3) is cut off by using a cutting machine.

5. The external scaffolding wall connecting structure and construction method according to claim 4, wherein: the wall connecting piece (2) is a steel pipe, through holes are formed in the wall connecting piece (2), the L-shaped embedded pieces (5) are round steel, the exposed parts of the L-shaped embedded pieces are horizontal, through holes matched with the wall connecting piece (2) are formed in the L-shaped embedded pieces, and the two through holes are overlapped and inserted into bolt assemblies for fixing.

6. The external scaffolding wall-connecting structure as claimed in claim 4, wherein: the wall connecting piece (2) is a steel pipe, the L-shaped embedded piece (5) is a round steel, the exposed part is horizontal, and the wall connecting piece (2) and the embedded piece are directly welded and fixed.

Technical Field

The invention relates to the field of building construction scaffolds, in particular to an external scaffold wall connecting structure and a construction method.

Background

The external scaffold is a scaffold erected on the periphery of a building, is widely used and is mainly used for building external walls, decorating external facades and reinforcing concrete engineering. The scaffold is installed at the periphery of the building, and people or materials with certain weight can be borne for keeping the structure of the outer scaffold stable, so that the outer scaffold is required to be fixedly connected with the building. Use even wall spare between outer scaffold frame and the building outer wall to carry out firm in connection, can keep outer scaffold frame's overall structure stable, avoided the accident that outer scaffold frame collapses, guarantee constructor's safety.

In the traditional construction process, the construction modes of the wall connecting piece are as follows: 1. after the building outer wall is poured, fixing the building outer wall by using expansion screws, and then fixing the wall connecting piece on the expansion screws; the method is easy to damage the structure of the building outer wall, and after the scaffold is dismantled, the expansion screw is left on the outer wall, so that the appearance of the building is influenced; 2. embedding a steel pipe in the building outer wall, and connecting the wall connecting piece with the steel pipe; the method has the disadvantages that after the scaffold is removed, the pre-embedded steel pipe cannot be removed, a steel pipe opening is left for the outer wall, the steel pipe opening needs to be plugged by using fine concrete, rainwater is easy to leak into the outer wall from a gap of the steel pipe opening in the later period, the outer wall is prone to water seepage, and manual repair is required to be carried out on the steel pipe opening of the outer wall; on the other hand, the number of steel pipes and fasteners used by the embedded steel pipes is large, and a considerable number of fasteners cannot be disassembled and taken out after the embedded steel pipes are used, so that great waste is caused; 3. the steel plate is embedded in the surface of the building outer wall, the wall connecting piece is welded on the steel plate in a welding mode, the construction consumes labor, and the fire hazard is easily caused by welding fire.

Disclosure of Invention

The invention provides an external scaffold wall connecting structure and a construction method; even wall spare firm in connection in this structure, low cost, it is convenient to install, and after the scaffold frame demolishs outside, does not have obvious vestige on the outer wall, does not influence building surface pleasing to the eye, has avoided the manual work of later stage benefit hole, has improved the efficiency of construction, the cost of using manpower sparingly.

In order to achieve the purpose of the invention, the technical scheme is as follows:

the invention is divided into two structural schemes according to different embedded parts:

an external scaffold wall connecting structure and a construction method thereof comprise the following construction steps:

A. horizontally embedding bolts in the outer wall of the building according to the interval required by a drawing, exposing bolt screw teeth on the outer side of the outer wall of the building, and wrapping the screw teeth before pouring concrete; kraft paper or high-molecular geotextile can be used for wrapping the screw teeth, and the effect of wrapping the screw teeth is to prevent concrete from being bonded on the screw teeth to influence the subsequent screw thread fastening step.

B. After the building outer wall is poured, tearing off the package of the screw thread, sleeving the through hole of the connecting plate of the wall connecting piece into the screw thread, and mounting a gasket and a nut on the screw thread; the connecting plate is tightly attached to the outer surface of the building outer wall through the pressing effect of the nut and the spring gasket, and the connecting plate is not easy to loosen;

C. then connecting the steel pipe of the wall connecting piece with the external scaffold through a fastener; at the moment, the external scaffold is firmly fixed through the stress conduction of the wall connecting piece, the connecting plate, the embedded bolt and the building external wall;

D. and after the construction is finished, detaching the wall connecting piece, storing or transferring to the next construction site for use, and cutting exposed screw threads on the outer wall of the building by using a cutting machine if necessary. The wall connecting piece does not need to be damaged, and the bolt is a low-cost consumption piece and is left on the outer wall, so that the appearance of the outer wall is slightly influenced;

the wall connecting piece comprises a steel pipe and a connecting plate, the connecting plate is fixedly welded with the end part of the steel pipe, a through hole matched with the exposed part of the bolt is formed in the connecting plate, and the exposed part of the bolt penetrates through the through hole and is anchored by using a nut and an elastic cushion; the connecting plate and the end part of the steel pipe are fixedly welded by full welding;

the connecting plate is rectangular, the through hole is positioned at the upper part of the rectangle, and the end part of the steel pipe is fixedly welded at the lower part of the connecting plate; when installing even wall spare on the building outer wall, notice distinguishing the direction, the through-hole position of rectangle connecting plate is last, and the position of connecting plate welding steel pipe is under, and such arrangement makes the steel pipe of even wall spare receive certain downward bending moment, makes partly bending moment pressure decompose into the steel pipe to the compressive stress of building outer wall, and the bending stress that the connecting plate received is less, and even wall spare is difficult for receiving external force to destroy the deformation at last.

The other external scaffold wall connecting structure and the construction method comprise the following construction steps:

A. embedding an L-shaped embedded part in the outer wall of the building according to the interval required by a drawing, exposing one section of one edge of the L-shaped embedded part outside the outer wall of the building, and wrapping the exposed part before pouring concrete; exposed portions can be wrapped with kraft paper or high-molecular geotextile, and the wrapped exposed portions serve to prevent concrete from being bonded to the exposed portions and affecting subsequent fastening steps.

B. After the building outer wall is poured, tearing off the exposed part of the building outer wall, and fixedly connecting the wall connecting piece with the exposed part of the L-shaped embedded part;

C. then connecting the wall connecting piece with the external scaffold through a fastener; at the moment, the outer scaffold is firmly fixed through the stress conduction of the wall connecting piece, the embedded L-shaped embedded piece and the building outer wall;

D. after the construction is finished, detaching the wall connecting piece, storing or transferring to the next construction site for use, and if necessary, cutting off the exposed L-shaped embedded part on the outer wall of the building by using a cutting machine; the wall connecting piece does not need to be damaged, the L-shaped embedded piece is made of round steel or steel pipe, is a low-cost consumption piece and is left on the outer wall, and the influence on the appearance of the outer wall is small;

the wall connecting piece is a steel pipe, through holes are formed in the wall connecting piece, the L-shaped embedded piece of the L-shaped embedded piece is a round steel, the exposed part of the L-shaped embedded piece is horizontal, through holes matched with the wall connecting piece are formed in the L-shaped embedded piece, and bolt assemblies are inserted into the two through holes in an overlapped mode for fixing; compared with a structure that the bolt is an embedded part, the structure has the advantages that the pulling force applied to the wall connecting part is transferred through the through hole instead of the screw thread, and the reliability is better.

The wall connecting piece is a steel pipe, the L-shaped embedded part of the L-shaped embedded part is round steel, the exposed part is horizontal, the wall connecting piece and the embedded part are directly welded and fixed, and the welding and fixing method has the advantages that the processing procedure is few, certain labor is consumed for field operation, and the method is suitable for the condition that the wall connecting piece is used in a small amount.

Compared with the prior art, the invention has the substantive characteristics and the progress that:

1. the connecting structure changes the connecting mode of the traditional external scaffold and the building external wall, the structure connects the traditional external scaffold and the building external wall through the embedded part embedded in the concrete external wall, the connecting structure is firm and reliable, and the phenomenon of connection and loosening can be avoided easily.

2. The invention can avoid the situation that holes are left on the building outer wall body in the traditional connection mode, thereby saving the subsequent outer wall repairing work and saving the labor cost and time cost of construction; the structure can also avoid the waste condition that the steel pipe fastener can not be separated from the outer wall.

3. The invention has little influence on the outer wall of the building and hardly influences the appearance of the outer wall of the building.

4. The consumption part of the invention is only an embedded part, the consumption is low, and the construction cost is saved.

Drawings

FIG. 1 is a schematic structural view of the present invention using bolts as embedment;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is a schematic view of an L-shaped embedded part used as an embedded part according to the present invention;

the reference numbers in the figures are: 1. an outer scaffold; 2. a wall connecting piece; 22. a steel pipe; 21. a connecting plate; 3. building exterior walls; 4. a bolt; 5. an L-shaped embedded part.

Detailed Description