| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of nondestructively and easily determining a level of degradation due to secular use of an ALC horizontal member constituting a floor and a roof of a building. <P>SOLUTION: After deformations by two kinds of different loads are measured in the center of an ALC horizontal member 2, panel rigidity of the ALC horizontal member 2 is calculated from the obtained deformations by the two kinds of different loads, a Young's modulus of the ALC horizontal member 2 is found from the panel rigidity to calculate a creep coefficient, and the obtained creep coefficient is compared with a creep coefficient obtained through calculation of a long-period deformation to determine degradation of the ALC horizontal member 2 after the secular use. <P>COPYRIGHT: (C)2012,JPO&INPIT |
