TY - GEN
T1 - Experimental Study on Ceiling Fall Prevention Using New Materials
AU - Misaki, Takumi
AU - Takahashi, Osamu
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2023
Y1 - 2023
N2 - The Great East Japan Earthquake of 2011 reaffirmed ceilings, which had been regarded as the finishing touch to architectural spaces, as an entity that can cause serious damage to occupants when they fall. The control of damage from falling ceilings was treated as an urgent issue, and in 2013, the “Notice on Specified Ceilings and Specified Ceilings with Structurally Safe Structural Methods (hereinafter referred to as “Ceiling Notice”)” was enacted. This defined ceilings that meet certain conditions as “specified ceilings,” and required that they be earthquake-resistant and that fall prevention measures be installed in existing buildings as well. Since then, there has been much research on fall prevention measures for ceilings, but there is still an urgent need to develop better materials and construction methods. Against this background, an experimental study was conducted to propose a method of repairing ceiling surfaces that have deteriorated over time and whose safety has not been confirmed. Tensile tests showed that polyurea resin and aramid fiber are effective for repairing suspension bolts inserted in concrete frames. In addition, the ceiling surface (plasterboard) was dropped to confirm its impact resistance against falling impact, and its effectiveness as a ceiling fall prevention measure was confirmed.
AB - The Great East Japan Earthquake of 2011 reaffirmed ceilings, which had been regarded as the finishing touch to architectural spaces, as an entity that can cause serious damage to occupants when they fall. The control of damage from falling ceilings was treated as an urgent issue, and in 2013, the “Notice on Specified Ceilings and Specified Ceilings with Structurally Safe Structural Methods (hereinafter referred to as “Ceiling Notice”)” was enacted. This defined ceilings that meet certain conditions as “specified ceilings,” and required that they be earthquake-resistant and that fall prevention measures be installed in existing buildings as well. Since then, there has been much research on fall prevention measures for ceilings, but there is still an urgent need to develop better materials and construction methods. Against this background, an experimental study was conducted to propose a method of repairing ceiling surfaces that have deteriorated over time and whose safety has not been confirmed. Tensile tests showed that polyurea resin and aramid fiber are effective for repairing suspension bolts inserted in concrete frames. In addition, the ceiling surface (plasterboard) was dropped to confirm its impact resistance against falling impact, and its effectiveness as a ceiling fall prevention measure was confirmed.
KW - Aramid fiber
KW - Ceiling fall prevention
KW - Polyurea resin
KW - Safe structural methods
UR - http://www.scopus.com/inward/record.url?scp=85148692039&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-21187-4_73
DO - 10.1007/978-3-031-21187-4_73
M3 - Conference contribution
AN - SCOPUS:85148692039
SN - 9783031211867
T3 - Lecture Notes in Civil Engineering
SP - 840
EP - 852
BT - Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures - 17th World Conference on Seismic Isolation, WCSI 2022
A2 - Cimellaro, Gian Paolo
PB - Springer Science and Business Media Deutschland GmbH
T2 - 17th World Conference on Seismic Isolation, WCSI 2022
Y2 - 12 September 2022 through 16 September 2022
ER -