Method for setting novel fastener type steel pipe external scaffold wall connection piece

Abstract

The invention discloses a method for setting a novel fastener type steel pipe external scaffold wall connection piece. The method comprises the steps as follows: selecting and using Q235 flat steel or flat iron with a specification of 600*50*3 mm; folding one end of the flat iron to be L-shaped, embedding the flat iron into a beam or plate of a main body structure, and binding or welding the flat iron or the flat steel with steel bar in the beam or plate by an iron wire; and tightly fixing a fastener with the other end of the flat iron or the flat steel with a previously drilled hole by a bolt, tightly and fixedly connecting a horizontal short steel pipe with a vertical rod, and pouring concrete. The method for setting the novel fastener type steel pipe external scaffold wall connection piece capable of tightly connecting the embedded flat iron or flat steel with the fastener or the steel pipe has the benefits as follows: 1) the shortcomings of the several methods for setting the wall connection piece are overcome, and the wall connection piece is good in rigidity and accurate to embed; 2) the hole filling process is not existent, so that the hidden trouble of water seepage is not caused; 3) the wall connection piece is reasonable in structure, simple to manufacture and low in cost; and 4) the wall connection piece is convenient to operate, safe and reliable, and effectively improves the construction efficiency.

Description

technical field [0001] The invention belongs to a ground fastener type steel pipe outer scaffold member for building construction, and is especially suitable for arranging wall connecting parts of multi-storey buildings whose outer scaffold erection height is less than 24m. Background technique [0002] As we all know, floor-mounted fastener-type steel pipe scaffolding is widely used in multi-storey building construction because of its simple structure, convenient assembly and disassembly, reasonable force transmission, durable use, firmness and stability, reasonable cost, and multiple turnovers. If the cantilevered erection is adopted, since the scaffold transmits the load to the main body of the structure through the cantilevered steel frame, the structure is more complicated, the cost is high, and the safety factor is not as good as the floor-mounted scaffold, so the cantilevered scaffold is not suitable for multi-storey buildings. Therefore, it is particularly important ...

AI Technical Summary

Problems solved by technology

[0006] Disadvantages: 1. The disadvantage of the tie-brace combination method is that the lateral stiffness of the scaffold is weaker than that of the rigid connection method, and the steel pipes that act as supports cannot be tightly connected to the scaffold and the main structure, resulting in easy shaking of the scaffold

2. It is easy to be completely dismantled when the exterior wall is painted, resulting in potential safety hazards

[0010] Disadvantages: 1. The disadvantage of the pre-embedded steel pipe method is that the wall parts are high in cost, troublesome to disassemble, and the post-retention opening of the masonry must be sealed later

2. At present, the rental price of steel pipe fasteners has risen sharply with the increase in the price of steel raw materials. The pre-embedded steel pipe method uses a relatively large number of steel pipes and fasteners compared to other wall-connecting methods, such as pre-embedded The short steel pipe method must use 2 fasteners, and a considerable proportion of the fasteners connected with the short steel pipe cannot be disassembled and eventually scrapped, resulting in higher costs

[0013] Disadvantages: 1. The disadvantage of the post-anchor method is that drilling is extremely troublesome and there are certain safety hazards in construction

2. Usually, two expansion anchors are used. The bearing capacity is not high, it is easy to loosen, and it cannot withstand low-cycle repeated loads. The construction requirements are high. After the construction is completed, the anchors are also scrapped and cannot be reused, resulting in higher costs.

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