| 摘要 |
A fire resisting wall structure, offering prolonged fire resistance at considerable heights, comprises two rows of spaced vertical supports or studs (10, 14), in which the rows of studs are separated by a central layer of fire resisting building board (11-13) to which the studs of both rows are secured, while the opposite outer faces of the studs are covered by respective facing layers of fire resisting building board (16-17) secured to the studs. The thickness of the central layer should be greater than that of either of the facing layers. |
