| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ceiling base structure which is capable of maintaining sufficient strength even when an operator performs an inspection/repair walking on a ceiling base material, and is excellent in an aseismatic performance. <P>SOLUTION: The ceiling base structure comprises many hollow metal square cylinders 1, 1... arranged in parallel at a prescribed interval and many metal members 2, 2... arranged orthogonally to the metal square cylinders 1, 1... and in parallel at a prescribed interval, and is configured to suspend the metal square cylinders 1, 1... or the metal members 2, 2... using suspension bolts 3, 3... from a structure 26 of a building. The selected one of the metal square cylinders 1, 1... or the metal members 2, 2... and an upper end of the selected one of the suspension bolts 3, 3... are connected by an oblique reinforcement member 20 comprising a hollow metal square cylinder so that an operator can walk at ease on the metal square cylinders 1, 1... or the metal members 2, 2... and the ceiling base structure with the excellent aseismatic performance can bear great seismic tremors during an earthquake. <P>COPYRIGHT: (C)2013,JPO&INPIT |
