石材店展示場の墓石の簡易な地震対策について

抄録

Severe damages to exhibited gravestones at stone stores have been reported in past earthquakes since most of them are not reinforced. Since these gravestones are for sales and temporarily on display, reinforcement measures using glue and bond cannot be applied. Simple and detachable measures are necessary. To meet this need, this study investigates the effectiveness of an interlocking reinforcement measure using steel bars. Questions as to whether this measure is effective and how many steel bars should be used is solved by 3-D shaking table tests. Seismic behavior of five gravestones with various number of steel bars are compared. Moreover, numerical simulations of gravestones at a stone store are done using DEM, and the effectiveness of the interlocking reinforcement measure is discussed.