Anti-floating retention structure

The invention discloses an anti-floating retention structure which comprises a form and a stainless steel sleeve. The bottom of the stainless steel sleeve is provided with an internal threaded hole. A 'T'-shaped bolt is inserted into the internal threaded hole from the bottom of the form to fix the stainless steel sleeve to the top of the form. One or a plurality of brackets for holding rebars extend out from the lateral sides of the stainless steel sleeve. As the brackets for holding rebars extend out from the lateral sides of the stainless steel sleeve, the rebars on the form are fixed on the brackets after the 'T'-shaped bolt and the stainless steel sleeve are fixed on the form, and floating resisting is achieved for the rebars. Therefore, thickness of a rebar protective layer is guaranteed, and all rebars are protected by cement.