Procedures for inspecting, monitoring and maintaining scaffolding and ladders in Vietnam

Circular 16/2021/TT-BXD promulgating QCVN 18:2021/BXD National technical regulation Experts on Safety in Construction, including regulations on inspection, supervision and maintenance procedures for scaffolding and ladders

Regulations on inspection, supervision and maintenance of scaffolding and staircase?

Subsection 2.2 in Section 2 of the national technical regulation on safety during construction promulgated together with the Circular No. 16/2021/TT-BXD stipulates the inspection, supervision and maintenance of scaffold and staircase as follows:

(1) - Teaching period must be inspected and recorded in writing (images may be shown) by the competent person at the following points of time:

- Before scaffolding is put into use;

- Periodically during use:

+ At least 7 days for metal scaffolds;

+ At least 01 day for suspension shoes and climbing rigs;

+ At least 12 hours for all types of non-metallic textiles.

- The teacher has been changed or damaged during use or after the occurrence of earthquake, storm, tornado, heavy rain for many days or any event affects the durability and stability of the scaffold (by lifting objects, construction machines, equipment collision or other collision impact).

Note: The competent person is the construction manager or occupational safety and hygiene manager of the contractor and must be trained in occupational safety and hygiene and scaffolding.

(2) The inspection is carried out according to 2.2.4.1 to ensure that the scaffold is used in a material that is suitable to its quality and is installed in accordance with the regulation.

(3)        None of adjustment and change in the method of installation of scaffolding compared with the approved design or removal of scaffold without the approval and inspection by the competent person.

NOTES: The competent persons as prescribed in 2.2.4.1.

(4) All scaffolds must be maintained in good and suitable working conditions.

(5) not allowed to remove part of scaffolding and continue to use the remaining part. Where necessary to use the remainder, it must be calculated and checked for use.

Procedures for inspecting, monitoring and maintaining scaffolding and ladders in Vietnam

Provisions on hanging rig?

Subsection 2.2 in Section 2 of the national technical regulation on safety during construction promulgated together with the Circular No. 16/2021/TT-BXD provides for use of suspended scaffolds as follows:

- In addition to the general safety requirements for scaffolding, especially issues related to KNCL, stability, anti-incineration, anti-drop and suspension scaffolding, the following additional regulations must be complied with:

+ Sizes (especially the length) of the suspension platform must be designed and installed to ensure the stability of the entire education system;

+ The number of hanging points must be selected according to the size and shape of the working floor;

+ The worker must be equipped with a life-saving rope which is firmly and separated from the anchor point to hang the scaffold;

Note: The lifesaving wire must be tested with the safety coefficient as for the rope, cable cars of the suspension teacher specified in 2.2.3.1.

+ Anchor parts of suspension scaffolds shall be designed, installed and carefully checked to ensure that KNCL is available;

+ Parts such as ropes, hoists and balances of suspension scaffolds shall be designed, installed, used and maintained in accordance with regulations on lifting equipment at 2.4;

+ The suspension system must be inspected, loaded, tested safely and approved by a competent person before it is used.

Note 1: Load testing and examination prescribed in 2.2.8.2

Note 2: The competent person, including the manager of construction machinery and equipment (or safety management) of the contractor and the construction supervisor of the investor (or EPC general contractor), has experiences in suspended scaffolding.

- Truck testing and inspection for suspension scaffolds are instructed as follows:

+ Engine-powered platform (Gondola floor) must be inspected and tested by qualified inspecting organizations according to regulations of competent authorities;

+ Other types of hanging floors are tested with the safety coefficient for design lifting load (including people, materials and equipment placed on the hanging floor) at least equal to 04 (four);

+ Lock-connectors, anchors, or scaffolds (e.g. suspension suspension gloves to other scaffolds): load testing shall be carried out in accordance with the design's regulation and the safety coefficient of the load shall be at least 04 (four) times the load they are in charge (including the load of the cable, the suspension floor and their equipment, accessories, and the weights which are expected to be used on the suspension floor);

+ Anchor parts of the suspension scaffold shall be tested with the determined weight corresponding to design load specified in Point b of this Section with the safety coefficient of at least 04 (four).

Circular No. 16/2021/TT-BXD comes into force from June 20, 2022.

Khanh Linh

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