The erection of Pre-manufactured steel houses carried out on site and divided into various phases as follows:
1) Installation of foundation bolts
The installation of foundation bolts are the first task of the erection ofPre-manufactured steel house. Most of companies providing services in erection ofPre-manufactured steel house are small and medium size companies. Therefore, the devices for installation of bolts are limited due to high investment.
They commonly use mechanical execution methods basing on existing level center provided by construction companies to stretch out to determine their center. This method is likely to negative consequence that the determined level center is errorneous with that specified in the drawing and different with that determined by construction company.
The erection shall be deployed with regular adjustment of components such as re-drilling of holes on columns, truss, purlin resulting from the deviation with the drawing, reducing the life service of the works.
2) Erection of the main frame
3) Erection of roofing iron
The erection of roofing iron is carried out after the completed erection and alignment of main frame, the fastening of bolts and brace rods.
Like the installation of main frame, the erection of the first plate should be carried out carefully, since it acts a the focus for other plates. Then each plate must be marked to ensure that the junction points of the sheets are aligned and perpendicular with purlin after the completion of the work. Otherwise, it may result in much alignments, bad-looking appearance, and unsure quality of the work.
For the works added with heal-insulation wadding under the roofing iron, this process is essential to ensure aligned and non-dragging connectors of wadding; smooth and flat lower surface of the wadding.
Dongson s pays much attention to safety in erection ofPre-manufactured steel house. Our erection engineers and supervisors are always present at the site to provide instruction and ensure the safety of the work.
Labor health and safety environment is considered as an essential part of the organizational and business mechanism of Dongson Steel. In addition to requirements and regulations in labor safety, Dongson Steel focuses on the evaluation on health and working environment for staff in order to reduce impacts from outside environment on business operations of Dongson Steel.