CN211949540U - Building scaffold drawknot spare - Google Patents

Abstract

The utility model discloses a building scaffolding tie member, which comprises a first steel plate and a second steel plate. The two steel plates are vertically welded into one, and are fixed on the concrete components of the building through expansion bolts, and a stiffening plate is arranged at the bottom of the second steel plate. , a through hole is arranged in the center of one side of the second steel plate, and the scaffolding-tie steel pipe passes through the through hole. The utility model cancels the working procedures of welding and cutting on the scaffolding, and adopts factory production to make semi-finished products. When in use, holes can be drilled on the on-site concrete structure for installation. After use, the finished steel components are removed, which can be reused and has high construction efficiency. High, low cost, and greatly reduce the safety hazards of high-altitude welding on site.

Description

A construction scaffolding knot

technical field

The utility model relates to a binding piece for construction scaffolding, in particular to a binding piece for scaffolding for renovation of an old building, which belongs to the field of construction engineering.

Background technique

With the rapid development of urban construction, the exterior decoration style of many old buildings is outdated and obviously does not meet the image requirements of the new era. Due to the lack of service life or other reasons, they cannot be demolished and built. Planning effects or creating new effects. During the construction of the old building renovation project, the building is normally used, and only the outer wall is renovated. Usually, the outer scaffolding used in the construction must be rigidly tied with the building structure to ensure that the frame body does not collapse or overturn safety accidents. Since the steel pipe cannot be installed through the wall for tie-tie, it is difficult to tie the scaffolding with the building structure, resulting in a greater safety hazard.

The practice in the prior art is to use expansion bolts to fix the anchoring steel plate on the concrete member of the outer wall, and then weld the connecting wall tie steel pipe on site, or weld -4×40mm flat steel on the wall anchoring steel plate, and weld the connecting wall tie at the other end of the flat steel. For steel pipes, gas cutting is used to cut off the welded steel pipes when the scaffolding is removed after use. In the prior art, the workload of on-site welding and dismantling and cutting after use is relatively large, and the high-altitude electric welding on the scaffold has low cutting operation efficiency, difficult to guarantee welding quality, and excessive safety risks; and residual steel pipe burrs caused by gas cutting and cutting. It needs to be polished before the steel plate can be reused, which is labor-intensive. When the flat steel tie is used, it can effectively prevent the frame from tilting outside, but it cannot prevent the frame from tilting.

Utility model content

In order to overcome the above deficiencies, the utility model provides a tie-down piece for a building scaffold.

The utility model adopts prefabricated steel components, which are factory-processed and manufactured, which can ensure the welding quality of the steel components. After the on-site expansion bolts are fixed, the steel pipes connected to the wall are directly fastened with scaffolding fasteners, and high-altitude welding work is not required on the scaffolding, and the construction efficiency is high. And greatly reduce the potential safety hazards; the steel pipe is inserted and fixed on the tie member, and the rigid connection makes the scaffolding firmly tied to the building structure, forming a stable whole to ensure the safe operation of the construction personnel; after use, loosen the screws of the finished steel member It can be removed without gas cutting, which is fast, efficient and safe, and can be reused.

The technical scheme adopted by the utility model is as follows: a building scaffolding tie member, comprising a first steel plate and a second steel plate, the two steel plates are vertically welded into one, and fixed on the concrete components of the building through expansion bolts, and the second steel plate is fixed on the concrete member of the building by means of expansion bolts. A stiffening plate is arranged at the bottom, and a through hole is arranged in the center of one side of the second steel plate, and the scaffolding tie steel pipe passes through the through hole.

The first steel plate is a square plate with a size of 150×150×8 mm, and a second steel plate is welded horizontally in the middle.

Four bolt holes are respectively arranged around the first steel plate, and four expansion bolts pass through the bolt holes to fix the steel plate on the concrete member of the building. Further, the model of the expansion bolt is φ12mm extended expansion bolt.

The size of the second steel plate is: 200×150×8mm, the diameter of the through hole is φ50mm, and can pass through the standard scaffolding steel pipe of φ48mm; further, the scaffolding steel pipe is fastened with cross fasteners and directly penetrates into the second steel plate in the reserved through hole.

The stiffening plate is a triangular steel plate with a length of 90mm, a height of 40mm, and a thickness of 8mm.

The building scaffolding knotting piece provided by the utility model brings the beneficial effects:

The welding and cutting work procedures on the scaffolding have been cancelled, and the semi-finished products are made in factories. When using, punch holes in the on-site concrete structure to install them. After use, the finished steel components are removed, which can be reused, with high construction efficiency and cost. low, and greatly reduce the security risks.

The utility model will be further described below with reference to the accompanying drawings and embodiments.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a right side view of FIG. 1 .

Figure 3 is a state diagram of the utility model in use.

In the figure, 1 is the first steel plate, 2 is the expansion bolt, 3 is the second steel plate, 4 is the stiffening plate, 5 is the welding seam, 6 is the scaffolding steel tube, 7 is the cross fastener, and 8 is the building concrete component.

Detailed ways

Example:

As shown in Figures 1 to 3, a building scaffolding tie member includes a first steel plate 1 and a second steel plate 3, the two steel plates are vertically welded as a whole, and are fixed on the building concrete member 8 through expansion bolts 2. The bottom of the second steel plate 3 is provided with a stiffening plate 4, and a center of one side of the second steel plate 3 is provided with a through hole through which the scaffolding tie steel pipe 6 passes.

The first steel plate 1 is a square plate with a size of 150×150×8 mm, and a second steel plate is welded horizontally in the middle.

Four bolt holes are respectively provided around the first steel plate 1, and four expansion bolts 2 pass through the bolt holes to fix the steel plate on the concrete member of the building. Further, the model of the expansion bolt is φ12mm extended expansion bolt.

The size of the second steel plate 3 is: 200×150×8mm, the diameter of the through hole is φ50mm, and the steel pipe 6 can pass through a standard scaffold of φ48mm. Further, the scaffolding knotted steel pipe 6 is fastened with a cross fastener 7 and then directly penetrates into the reserved through hole of the second steel plate 3 .

The stiffening plate 4 is a triangular steel plate with a length of 90 mm, a height of 40 mm, and a thickness of 8 mm.

The specific production method is as follows: use a 150×150mm steel plate (ie the first steel plate), weld another steel plate with a hole in the middle (ie the second steel plate) horizontally in the middle, and weld a small triangular stiffening plate at the bottom to make a tie piece , when the scaffold is erected to the tie position, the tie member is fixed on the concrete structure of the building with 4 expansion bolts. The scaffold tie steel pipe is fastened with cross fasteners and then penetrated into the through hole of the second steel plate, so that the scaffold and the Buildings are reliably tied.

Renovation of a commercial street in Zhengzhou City, Building 88, frame structure, exterior wall renovation and decoration is dry-hanging granite stone curtain wall, 23.1m high, erected with double-row floor-standing steel pipe scaffolding, erected height of 24.5m; partial height of 29.5m, erected three rows Floor-standing scaffolding, erection height 32m. The frame body and the building are tied by the tie pieces of the utility model. After the initial erection acceptance and regular inspection, the tie between the scaffold and the building structure is firm and reliable, and the installation and removal are convenient, which reduces the safety hazard of high-altitude welding and cutting. The dismantled tie pieces were reused in the scaffolding project of the project's luggage city renovation, which also achieved good results, and the cost was reduced by more than 20% compared with the use of ordinary anchor plates.

Claims (7)

1. a building scaffolding anchor is characterized in that: comprise the first steel plate and the second steel plate, two steel plates are vertically welded into one, be fixed on the building concrete member by expansion bolts, and are provided with the bottom of the second steel plate. For the stiffening plate, a through hole is arranged in the center of one side of the second steel plate, and the scaffolding knotted steel pipe passes through the through hole. 2 . The anchoring piece for construction scaffolding according to claim 1 , wherein the first steel plate is a square plate with a size of 150×150×8 mm, and a second steel plate is welded horizontally in the middle. 3 . 3 . The construction scaffolding fastener according to claim 1 , wherein four bolt holes are respectively provided around the first steel plate, and the four expansion bolts pass through the bolt holes to fix the steel plate on the concrete member of the building. 4 . 4 . The anchoring piece of construction scaffolding according to claim 3 , wherein the expansion bolts are φ12mm extended expansion bolts. 5 . 5 . The construction scaffolding tie piece according to claim 1 , wherein the size of the second steel plate is: 200×150×8mm, the diameter of the through hole is φ50mm, and can pass through a standard scaffolding tie steel pipe of φ48mm. 6 . 6 . The construction scaffolding tie member according to claim 5 , wherein the scaffolding tie steel pipe is fastened with a cross fastener and directly penetrates into the reserved through hole of the second steel plate. 7 . 7 . The anchoring piece for construction scaffolding according to claim 1 , wherein the stiffening plate is a triangular steel plate with a length of 90 mm and a height of 40 mm, and a thickness of 8 mm. 8 .

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