钢结构工程防火设计施工具体作法通常有以下数种：
The specific methods for fire protection design and construction of steel structural engineering usually include the following:
1、为现浇法，即以混凝土现浇在钢拄、钢梁表面而保护之；
1. It is a cast-in-place method, which uses concrete to be poured on the surface of steel columns and beams to protect them;
2、为涂抹法，即用金屈网包覆并涂抹珍珠岩、姪石等砂浆；
2. It is the coating method, that is, the perlite, nepheline and other mortars are coated and coated with gold bending net;
3、为包湲法，即用轻质混凝土梹、石棉板等包覆纲结构工程；
3. It is the enveloping flow method, that is, light concrete and asbestos board are used to cover the mesh structural engineering;
4、为喷涂法，即将石棉、岩棉等矿物纤维与水泥混合，再用喷枪喷涂于钢结构表面。
4. For the spraying method, mineral fibers such as asbestos and rock wool are mixed with cement, and then sprayed onto the surface of the steel structure using a spray gun.
一般釆说，上述各法的保护厚度均需在4或5厘米左右方能达到一、二级耐火等级的要求。
Generally speaking, the protective thickness of each method mentioned above needs to be around 4 or 5 centimeters in order to meet the requirements of the first and second level fire resistance levels.
最近我国已研制成功钢结构防火涂料，只需在钢梁、钢柱上分别涂抹2.5及4厘米的厚度，使能使其达到一级耐火等级。二是日本已研制出在600亡高溫仍能保持原有强度的建筑钢材，因其在炼钢时加入了一定数量的镍、铬、钼等金厲，从而使钢材具备了高强度的耐火性能。
Recently, China has successfully developed a steel structure fireproof coating, which only needs to be applied with a thickness of 2.5 and 4 centimeters respectively on the steel beams and columns to achieve a first level fire resistance rating. Secondly, Japan has developed building steel that can maintain its original strength even at a high temperature of 600 degrees Celsius. Due to the addition of a certain amount of nickel, chromium, molybdenum and other metals during steelmaking, the steel has high strength fire resistance.