Previous studies have shown that earthquake repair costs can be minimised by using large levels of supplemental damping and uniform damper placement. However, it is not always feasible to achieve this damping due to structural or financial restraints. Iterative damper placement methods may be able to achieve higher levels of damping than simple methods such as uniform damping for the same total damper cost. In this work, six damper placement methods were assessed based on structural and non-structural repair costs. The total damper cost was constrained to be the same in each case. The scope of work was limited to linear fluid viscous dampers, concentric braced frames and regular structures. The iterative methods were found to provide a greater total damping coefficient to the structures than the simple methods. This resulted in a higher supplemental damping ratio and lower repair costs. If upfront funds are limited, or if architectural constraints prevent the placement of dampers in lower storeys, then iterative methods provide the most favourable total-building seismic performance. However, the conclusions should be extended cautiously. Although iterative methods are favourable when the upfront damper investment is strictly limited, in terms of total-building seismic performance, it is advantageous to provide a large damping ratio using uniform damping.

中文翻译：

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考虑前期风门成本的风门放置方法评估

先前的研究表明，通过使用大量的补充阻尼和均匀放置阻尼器，可以将地震修复成本降至最低。但是，由于结构上或财务上的限制，实现这种阻尼并不总是可行的。与简单的方法（例如，对于相同的总阻尼器成本而言均匀的阻尼）相比，迭代的阻尼器放置方法可能能够实现更高级别的阻尼。在这项工作中，根据结构和非结构修复成本评估了六种阻尼器放置方法。在每种情况下，阻尼器的总成本都被限制为相同。工作范围仅限于线性流体粘性阻尼器，同心支撑框架和规则结构。发现迭代方法比简单方法为结构提供了更大的总阻尼系数。这导致更高的补充阻尼比和更低的维修成本。如果前期资金有限，或者由于建筑限制而无法在较低楼层放置阻尼器，那么迭代方法将为建筑物提供最有利的抗震性能。但是，结论应谨慎扩展。尽管严格限制前期减振器投资时，迭代方法是有利的，但就整个建筑物的抗震性能而言，使用均匀减振器提供较大的减振比是有利的。