STUDY ON WORK EXECUTION OF WIDE-AREA SEISMIC SUSPENDED CEILING BASED ON CONSTRUCTION SURVEY OF FULL-SCALE GYMNASIUM SPECIMEN

New seismic standards for wide-area suspended ceiling have been in effect from April 2014 in Japan. In the new seismic standards, screw fastening to the connection of metal parts and a lot of bracings are required. Therefore, labor cost should increase. However, actual construction work of seismically designed ceiling based on new seismic standards is not investigated. In this study, construction of the full-scale gymnasium specimen used for the shake table experiment using E-Defense is surveyed and several construction issues are identified. Based on the construction survey, it is clarified that labor costs for construction of seismically designed ceiling need 3 times more than the labor costs for construction of non-seismic ceiling.