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Maintenance method of Disc-Lock Steel Tubular Scaffold

Source:Shanghai Hanxia Trade Co., LtdHits:

       During the use of the turnbuckle scaffold, the quality of the upright pole, horizontal pole, horizontal slash, vertical diagonal pole and accessories on the scaffold body shall be checked regularly, and the problems shall be solved in time. And clear the surface binder, and should do a good job in maintenance, at the same time should be in accordance with the manufacturer, varieties, specifications respectively stacked.



When the coil type steel pipe scaffold is used for the support system, the products of the same manufacturer should be used for the erection of a unit scaffold project, and should not be mixed. When mixed with the fastener type steel pipe scaffold, it is in accordance with the relevant provisions of the current industry standard technical code for safety of socket type steel pipe bracket in construction jgj231 and technical code for safety of fastener type steel pipe scaffold in construction.



The lessee shall inspect and classify the appearance quality of the used steel tube scaffold components and make records. The inspection contents shall include whether the pole accessories are in good condition, whether there is obvious deformation and damage, whether the steel pipes at both ends of the vertical pole are in shape, whether there is adhesive on the surface of the pole accessories, and whether the manufacturer's mark, specification and quantity of the leased goods are consistent with the leasing contract, etc. The components passing the inspection shall be classified and stacked according to the different specifications of upright, horizontal and diagonal members. Components to be repaired and scrapped shall be stacked separately.


9.2.2 the exit acceptance standards, inspection tools and methods of the steel tube scaffold with turnbuckle shall conform to the provisions of table 9.2.2.




Acceptance standard and inspection tools and methods of steel tubular scaffold with spigot

Inspection items

Acceptance criteria

Inspection tools and methods

Member size

Compliance with contract requirements

Vernier caliper

Bending of members

No obvious bending or dead end of the member

Visual inspection

Connecting disk

No deformation, no damage

Horizontal bar and socket joint

Complete, socket joint, no defect, deformation

Diagonal and socket joints

Intact without deformation

Clean appearance of members

The surface of rod accessories shall be clean and free of adhesive

identification

The handwriting and pattern are clear, complete and accurate



Repair and maintenance of steel pipe with turnbuckle

1. After leaving the site, the quality inspection personnel shall inspect the rod accessories and materials returned from the site, make maintenance, repair and scrapping judgment according to the quality, deformation and damage degree of the leased goods, and register and record at the same time.


2. The inspected rod fittings and materials shall be stored in different areas according to different varieties, specifications and sizes, maintenance and restructuring, and shall be marked in different areas according to the current industry standard specification for classification of formwork and scaffold leasing enterprises (sb / t10545).


3. After the inspection, it is confirmed that the components of the coil type steel pipe scaffold that do not need to be repaired or modified shall be cleaned up with steel wire brush and other tools, and then painted and galvanized. The components of the steel tubular scaffold with turnbuckle after maintenance and reform shall be treated with antirust treatment such as painting and galvanizing.


4. Before the maintenance of the steel tube scaffold with turnbuckle, the corresponding maintenance and reform methods shall be determined according to the defect degree specified in table 9.3.4.


project

Description of defect degree

Maintenance methods

reform

appearance

Cracks in members

-

The cracked parts are cut off and transformed into small size components

 

Steel pipe surface

 

The difference between the maximum outer diameter and the minimum outer diameter of the concave flat part is less than or equal to 3mm

Correction and repair on special expanding tooling

 

-

The difference between the maximum outer diameter and the minimum outer diameter of the concave flat part is more than 3mm

-

The concave and flat parts are cut off and transformed into small size components

Straightness of upright member

 

Deviation ≤ 5L / 1000

According to the length and damage degree of the rod, the straightening machine shall be used for straightening

-

Deviation ≥ 5L / 1000

-

Cut off the bending part and make it into small size components

Deformation of end hole diameter of upright tube

 

Slight deformation

Correction and repair with special reaming tools

 

-

Obvious deformation with flat head

-

Cut off the flat head and change it into small size components

Connecting disk

 

Deformation less than 3mm

correct

-

The perpendicularity deviation with the outer surface of steel pipe is less than 3mm

correct

 

-

Pin

Deformation or loss

Should be replaced

-

Welding of members

Weld cracking

-

Cut off the cracked part and transform it into small size component

Zinc coating

Falling off or rusting

Derusting and galvanizing

-


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