In the previous article, we have understood the causes of common problems in steel structure engineering. Next, we will work together to understand the specific solutions to these problems.
1. in strict accordance with the requirements of the design drawings to purchase steel, for some different steel, more need to understand its performance and characteristics. If the performance of the thickness direction of the steel plate is required, it is required not only to have mechanical properties along the width direction and length direction, but also to have good laminar tear resistance in the thickness direction.
2. Check the raw materials before storage;
3. In the construction of steel structure, if there is an over limit quality defect, it shall be refused to use;
4. For all defects within the control range, repair measures such as polishing can be taken;
5. Attention should be paid to the custody of materials. Steel structure manufacturers should pay attention to moistureproof, avoid rain freezing, if conditions do not open, long-term exposed steel to do surface anti-corrosion treatment;
6. In the construction of steel structure, attention should be paid to the re-inspection of steel, especially the back plate with thickness ≥40mm and design with Z direction requirements;
7 steel defects by gas cutting, shear and welding can be more obviously exposed, generally with a magnifying glass observation and inspection, but for individual requirements of gas cutting and shear surface, should be according to the requirements of the appearance inspection, if necessary, should be carried out air permeability inspection. Magnetic powder or ultrasonic detection;
8. In the process of manufacturing and installation, the correct use of tools should be strengthened. Scratches and hanging marks can be corrected by grinding after repair welding.
These common problems in the construction of steel structure engineering need to be solved pertinently. Steel structure manufacturers should strictly control each link to avoid these problems as far as possible.
