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This evaluation demonstrates reduced collapse risk in wooden houses with engineered steel pillars, highlighting safety advancements.
Improving the seismic safety of wooden houses is a critical issue. One method to prevent soft-story collapse is the installation of highly rigid through-pillars, known as "rocking pillars". By equalizing inter-story drift and redistributing the total shear force, these pillars suppress the building's seismic response and significantly reduce the probability of collapse. This study evaluates the response suppression and collapse prevention capabilities of rocking pillars by applying a performance-based safety assessment that combines fragility curves, derived from collapse analysis, with region-specific seismic hazard probabilities.
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TAKEZUKA et al. (2026) studied this question.
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