軽量鉄骨下地間仕切り壁の耐震性能と修復性の検証

概要

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Quantitative information on the seismic performance of nonstructural components is scarce. Among various nonstructural components, damage to interior drywall partitions affects significantly to the economic loss. Three full-scale drywall partitions, i.e., a standard plane partition, a partition with a door, and a partition with an orthogonal wall, are tested to observe the initiation and evolution of damage in cyclic loading conditions up to a drift angle of 0.1 rad. The plane drywall partition remains undamaged up to 0.01rad, while the partition with a door or the partition with an orthogonal wall sustained damage at a smaller drift angle because of local constraint. The partitions exhibit some lateral resistance, which is provided primarily by the bearing between the gypsum board and surrounding columns. The progress of damage is presented in terms of the ratio of the repair to initial cost. The ratio reaches about 1.0 and 2.0 for a drift angle of 0.04 rad and 0.06 rad, respectively.
2007-04-30