Building cylinder strengthening structure and method

The building column strengthening structure comprises a hollow main steel pipe, an upper flange plate and a lower flange plate are arranged at the upper end and the lower end of the main steel pipe, center through holes communicated with the main steel pipe are formed in the center of the upper flange plate and the center of the lower flange plate, a structure with the I-shaped section is formed, and the upper flange plate is mechanically connected with an upper beam steel bar. The lower flange plate is mechanically connected with lower beam steel bars, the main steel pipe is filled with the high-strength cement inner core, the concrete layer is poured on the outer layer of the main steel pipe, the structure is firmer, connection with upper beam steel bars is easier and more convenient, the strength of a column body is improved, and safety and stability of a building are improved. 本发明涉及一种建筑物柱体强化构造及方法，包括内部中空的主钢管，所述主钢管上下两端设置有上法兰盘、下法兰盘，上法兰盘、下法兰盘中心具有与主钢管相通的中心通孔，形成截面工字型结构，所述上法兰盘与上梁钢筋机械连接，所述下法兰盘与下梁钢筋机械连接，所述主钢管内填充有高