Socket type tensioning pedestal and tensioning method

The invention relates to the technical field of prefabricated parts, in particular to a socket type tensioning pedestal and a tensioning method. The tensioning pedestal comprises a pedestal body, a stand column and a tensioning driving device; a plurality of sleeves are arranged on the pedestal in the width direction in an array mode, and the stand columns are connected with the sleeves in an inserted mode. An inclined section is arranged in the middle of the stand column, the inclined section is arranged between a first stand column section, located on the pedestal, of the stand column and a second stand column section, located in the sleeve, of the stand column, and the side face of the first stand column section and the side face, opposite to the first stand column section, of the second stand column section abut against the opposite inner side walls of the sleeve respectively. The fixed end of the tensioning driving device is fixedly connected with the stand column, and the telescopic end of the tensionin