In this article, the author of Suzhou steel structure engineering will tell you the matters needing attention in structural processing and the knowledge of selected steel.
1. During steel structure processing in rainy days, anti-skid measures must be taken (such as wearing anti-skid shoes, anti-skid gloves, etc.), and lightning protection should be paid attention to in Thunderstorm seasons.
2. Leakage protection measures shall be taken for electric equipment to prevent electric shock.
3. The mobile operation platform shall be firmly installed and provided with anti slide card.
4. The site shall be equipped with sufficient fire-fighting equipment and fire-fighting facilities.
5. The tools and spare parts used by the workers working at heights shall be put in their tool bags and shall not be thrown up and down.
6. Operators working at heights must wear safety helmet, safety belt and tool bag.
The raw material used in steel structure processing is steel. Do you know the classification of building steel? Only when you are familiar with the classification and performance of steel can it be applied to the design and processing of steel structures. The following is a brief introduction to the classification of raw materials for steel structure processing.
Category: classified according to smelting method: (1) open hearth steel, oxygen converter steel (y), electric furnace steel according to smelting furnace, (2) rimmed steel (f), killed steel (z), semi killed steel (b) and special killed steel (TZ) according to deoxidation degree.
The second kind: classified by chemical composition: (1) carbon steel: low carbon steel, carbon content ＜ 0.25%; Medium carbon steel, carbon content ＜ 0.25% ～ 0.6%; Rigid carbon steel, ＞ 0.6%. Carbon structural steel is divided into four quality grades A, B, C and d according to different sulfur content. (2) Alloy steel: according to different content of alloy elements: low alloy steel, total content of alloy elements ≤ 5%; Medium alloy steel, the total content of alloy elements is 5% ~ 10%; High alloy steel, with total content of alloy elements > 10%.
The third kind: classified by quality: (1) ordinary steel s ≤ 0.050%, P ≤ 0.045%; (2) Steel s ≤ 0.035%, P ≤ 0.035%.
The fourth category: classified by use: structural steel, tool steel and special steel.
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