FIRE RESISTING SLEEVE

PROBLEM TO BE SOLVED: To facilitate work by providing a sleeve pipe forming an insertion space and a circular fire resisting material loaded to the circumference of the sleeve pipe, and providing a circular protection cover used for the protection of the fire resisting material in contact with a beam opening. SOLUTION: A sleeve pipe 3 of a metal plate is provided to the center of a fire resisting sleeve 1, and a circular fire resisting material 5 of calcium silicate is inserted to the circumference of the sleeve pipe 3. A circular protection cover 9 of the metal plate is wound on the circumference of the fire resisting material 5 inserted to the circumference of the sleeve pipe 3, the circumference of the protection cover 9 is closely contacted with the inside circumference of a beam opening 11, and a bearing metal-fixture 13 is fixed to the protection cover 9. Then, a claw section 19a of the bearing metal-fixture 13 brought into contact with one surface of a beam 21 is erected to insert the fire resisting sleeve 1, the claw section 19a is brought into contact with one surface of the beam 21 to erect the other claw section 19b, and the edge section of the beam opening 11 is held from both surface sides. Accordingly, the loading of the fire resisting sleeve to the beam opening can be easily executed.