Free-standing Steel Chimney

The dust removal project at a steel mill needs to set up a chimney according to the professional requirements of ventilation. The chimney height is 45 m, the diameter is 46m, and the highest temperature is 40 °C. Base wood wind pressure is 0.35 kN/m, ground roughness is class B, earthquake fortification intensity is 6 degrees, earthquake acceleration is 0.05g, earthquake group is the first group, and site category is class I.

Steel pancetta is divided into tower type, cable type, and self-supporting pancetta. According to the engineering conditions combined with the actual situation, this design uses a steel chimney. The steel chimney, inspection platform, and rotary ladder are all made of Q235B, whose quality should conform to the provisions of the current national standard GB/T 700 vegetarian structural steel.