1. Signs shall be set at the end of the steel, indicating the specification, steel number, quantity and material acceptance certificate number of the steel;

2. When stacking in the open air, the site shall be horizontal and higher than the surrounding ground, and there shall be drainage ditches around;

3. When stacking, the back of steel structural steel profiles shall be upward or outward as far as possible to avoid snow and ponding, and there shall be a height difference at both ends to facilitate drainage.

4. The construction unit shall conduct special inspection on the product certificate, design documents and pre installation records of parts and components before construction, and recheck and record the dimensions of parts and components;

5. Appropriate connection mode shall be adopted for steel structure to make the joint design consistent with the simplified structural calculation model;

6. During the hoisting of steel structure, appropriate measures shall be taken to prevent excessive bending and torsional deformation. The contact part between rope buckle and member shall be padded accordingly to prevent member damage due to knocking;

7. After the steel structure is hoisted in place, the support and other connectors shall be fixed in time to ensure the stability of the structure.

8. When using tools at height, spare parts shall be put into the tool kit and shall not be thrown up and down;

9. Reliable anti-skid measures shall be taken during operation in rainy days, and lightning protection shall be paid attention to in thunderstorm season;