Under the influence of national energy conservation and emission reduction, the emission requirements of various industries are also constantly increasing. As a result, the demands placed on the Freestanding Fireplace Chimney in exhaust gas are constantly increasing. The main function of Modern Freestanding Fireplace is to generate a certain suction, so that the flue gas flows continuously in the furnace, and the flue gas is discharged to the high altitude, so as to reduce the pollution of the flue gas to the environment. Through the exploration and research of domestic and foreign scientific research institutions, it is found that Free-standing Chimney can not only solve the problem of easy cracking and aging of concrete chimneys to a certain extent, but also better solve the problem of flue gas pollution. Therefore, studying the structural system of steel chimneys has important theoretical and applied value to the entire industry. Free-Standing Chimney structures combine the respective advantages of tower and traditional self-supporting steel chimneys. Compared with the common tower chimney, the cylinder not only bears its own gravity load, but also forms a huge space truss system with the surrounding rods. In order to jointly resist the horizontal wind load and earthquake action, the bending and shearing force of the cylinder material itself is fully utilized, which reduces the amount of steel used in the entire project and reduces the cost.
