FIRE-RESISTING WALL FOR COVERING VIBRATION ISOLATION MEMBER AND CONSTRUCTION OF FIRE-RESISTIVE VIBRATION ISOLATION

摘要

PROBLEM TO BE SOLVED: To provide a fire-resisting wall for covering a vibration isolation member, in which mounting and demounting of works are facilitated and which can prevent the reaching of a fire frame to a vibration isolation member effectively, and the construction of fire-resistive vibration isolation. ;SOLUTION: The construction 12 of fire-resistive vibration isolation is arranged between mutually separated beam 14 and support 16, and has the vibration isolation members 18 fixed onto both the beam 14 and the support 16 and the fire-resisting walls 10 covering the vibration isolation members 18 in a fire-resistive manner. The fire-resisting walls 10 have cylindrical fire-resisting covering plates 20 covering the outer circumferential surfaces of the vibration isolation members 18 while being separated from the vibration isolation members 18. First ends in the axial direction of the fire-resisting covering plates 20 are formed in fixed ends 22 fixed onto the support 16, and second ends in the axial directions on the reverse side of the fixed ends 22 are formed in free ends 24 forming openings 28 among the beam 14 and the covering plates 20. Regions containing the free ends 24 of the fire-resisting covering plates 20 are formed of annular thermal expansive members 30. The thermal expansive members 30 are expanded and close the openings 28 when a fire flame reaches near the free ends 24 of the fire-resisting covering plate 20, and the fire spreading of the vibration isolation members 18 is prevented.;COPYRIGHT: (C)1999,JPO