Construction method for building postposition pre-buried wall connecting parts

Abstract

The invention relates to an erection construction method for a rearmounted pre-embedded type fastener to wall, wherein a chemical anchor widely applied to steel structure and concrete is anchored on the wall or post of a building, a steel plate embedded part with a short steel pipe is fixed on the chemical anchor, and the short steel pipe on the steel plate embedded part is connected with the a scaffold wall rod. The method comprises the following steps: (1) determining the chemical anchor; (2) placing a chemical anchor position line; (3) processing outer wall surface base material; (4) drilling holes the base material; (5) cleaning the holes; (6) putting a drug tube in; (7) screwing in a screw; (8) curing; (9) pull-out testing; (10) installing a rearmounted embedded part; (11) connecting with a wall rod and (12) acceptance checking the wall rod. The method is easy to operate, the anchoring force is reliable, the construction cost is low, the efficiency is high, convenient for detaching and turnover for many times, the safe use of a scaffold and the normal use and security of the inside of a building are effectively ensured; the damage to the original building structure is little, and the method can be widely applied to a floor type scaffold higher than 24 meters in rebuilding or refitting engineering, and the anchoring of steel structure and concrete having a concrete strength less than C20.

Description

technical field [0001] The invention belongs to the field of building construction, and relates to a construction method for using post-embedded pre-embedded connecting wall parts and floor-standing fastener steel pipe scaffolds in building reconstruction or renovation projects. Background technique [0002] The connecting wall structure of floor-standing fastener steel pipe scaffolding, referred to as "connecting wall parts", is generally divided into rigid connecting wall structure and flexible connecting wall structure. For rigid wall parts. The forms of connecting wall parts we often use are: fastener type connection, welding, bolt connection, etc. The fastener type connection is to use steel pipe to connect and fix the structural column or wall, but it is necessary to repeatedly dismantle and modify the connecting wall during the construction of external windows. Fasteners are labor-intensive and labor-intensive; welding connection is to embed steel plate embedded part...

AI Technical Summary

Problems solved by technology

The forms of connecting wall parts we often use include: fastener connection, welding, bolt connection, etc. The fastener connection is to use steel pipes to connect and fix structural columns or walls, but the connection walls must be repeatedly removed and modified during the construction of the external window Fasteners are labor-intensive; welded connections are pre-embedded steel plate embedded parts in the structure, and steel pipes for wall parts are welded on it, but gas welding needs to be cut from the welded steel pipes when dismantling, and the operation is cumbersome; bolted connections are structurally pre-installed. Burying bolts or drilling holes on the wall to make wall rods in the form of pull bolts, this kind of construction efficiency is low, the cost is high, and it is not convenient for the turnover of wall parts

[0003] With the passage of time, a large number of buildings in the 1950s and 1960s in our country are waiting for reconstruction or renovation, especially the renovation and renovation of the facade, which must not only ensure the safety of the external scaffolding, but also meet the requirements for normal use and security inside the building. , the most commonly used fastener-type wall parts can no longer be used, and the usual embedded parts cannot be used on the built building structure, so a new construction method of embedded parts must be adopted

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