Fixing structure for thin wall hollow tubes of cast-in-situ hollow floor

The utility model discloses a fixing structure for thin wall hollow tubes of a cast-in-situ hollow floor. The fixing structure comprises floor face bars located on an upper plane and floor bottom bars located on a lower plane. A plurality of rows of split heads are arranged between the floor face bars and the floor bottom bars, the upper ends and the lower ends of the split heads are respectively connected with the floor face bars and the floor bottom bars, installation spaces are formed between two adjacent split heads, and the hollow tubes with tube walls respectively butting against lateral bars of corresponding split heads are arranged in the installation spaces. The fixing structure for thin wall hollow tubes of the cast-in-situ hollow floor has the advantages that the fixing structure utilizes the split heads to form the installation spaces, the lateral bars of the split heads butt against the hollow tubes to limit movement of the hollow tubes and prevent the hollow tubes from displace when concrete is