Design and Construction of Column Reinforcement for the Renovation of an Office Building of an Institution

Due to the change of the use function of the office building of an institution, it is necessary to pull out the column. The prestress is used to increase the cross-section reinforcement, and the influence of the column on the original structure is calculated and analyzed, and the internal force of the structure is redistributed to the adjacent frame column. Each beam is equipped with 4 jacking points for unloading processing, and the deflection dynamic monitoring of the prestressed anchor cable from hierarchical tension to the final lock anchor can reduce the damage to the floor structure.