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Experimental study tests performance of buckling-restrained braces with variable bonding and clearance, suggesting optimization methods.
There is room for further investigation regarding the effects of bonding area and clearance in buckling-restrained brace using steel mortar planks (BRBSM). In this study, experiments were conducted using BRBSM with varying bonding areas and clearances. The results indicate that by appropriately setting both the bonding area ratio and clearance, the lower limit of performance evaluation can be satisfied, and a compressive-tensile strength ratio comparable to that of BRBSM with full bonding achieved through clearance adjustment methods can be obtained. Furthermore, a clearance adjustment index for estimating the lower limit of cumulative plastic strain energy rate was presented.
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HIROE et al. (2026) studied this question.
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