Unbonded prestressed frame beamSteel pipeCharacteristics of concrete column structure: (1) The horizontal structure uses unbonded prestressed concrete frame beams, while the vertical structure usesSteel pipeconcrete columns, both of which can reduce the cross-section of beams (columns) and improve their load-bearing capacity. The organic combination of the two provides greater structural advantages. (2)Steel pipeThe construction of concrete columns does not require formwork, making the construction relatively simple. (3) The construction process of unbonded prestressed concrete is relatively simple, easy to operate, and technologically advanced. The tensioning equipment is simple and lightweight, easy to move, can work in high altitudes and small spaces, and does not occupy construction time during tensioning. | 
