This study experimentally evaluates the ultimate strength characteristics of anchor bolts in the pedestals of oil damper, with the aim of enhancing the seismic performance of spherical gas holders. A test specimen simulating an existing structure was fabricated, and a cyclic loading test (10 cycles) with a maximum load of ±400 kN was conducted, simulating seismic conditions typical of subduction-zone earthquakes. The results indicated no structural damage, and the stress in the anchor bolts remained below the yield strength of the steel used. These findings demonstrate that the support structure possesses sufficient strength against seismic loads and contribute to the development of reliable design guidelines concerning the ultimate strength of anchor bolts.
Miura et al. (Wed,) studied this question.