Energy-dissipating devices (EDDs) are used to control the dynamic response of high-rise buildings in moderate to severe seismic risk areas. These systems can be effectively analysed using a rigorous non-linear response history analysis (NLRHA) procedure. However, expertise and time is required to perform and interpret the results from this procedure since several trials are required to select the most effective size and location of the dampers. In this study, the validity of the modal strain energy (MSE) method and the logarithmic decrement (LD) method was checked using a case study of a 40-storey reinforced concrete (RC) core wall building equipped with buckling-restrained braces (BRBs) and fluid viscous dampers (FVDs). Linear and non-linear models of the building including dampers were prepared. The elastic dominant modes and their target displacements were then determined using a response-spectrum analysis procedure. The MSE and LD methods were used to determine the equivalent damping ratio and the time period for BRBs and FVDs, respectively. The base shear and roof displacement, determined using modal and spectral parameters against these damping and time = period values, were found to match those determined using NLRHA with an accuracy of 5–10% and 20–30%, respectively. This study is helpful for the preliminary sizing of EDDs.

中文翻译：

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高层钢筋混凝土核心墙建筑消能装置评价

消能装置 (EDD) 用于控制中度至重度地震风险区域中高层建筑的动态响应。这些系统可以使用严格的非线性响应历史分析 (NLRHA) 程序进行有效分析。然而，执行和解释该程序的结果需要专业知识和时间，因为需要多次试验来选择最有效的阻尼器尺寸和位置。在本研究中，以配备屈曲约束支撑 (BRB) 的 40 层钢筋混凝土 (RC) 核心墙建筑为例，验证了模态应变能 (MSE) 方法和对数递减 (LD) 方法的有效性。 ) 和流体粘性阻尼器 (FVD)。准备了包括阻尼器在内的建筑物的线性和非线性模型。然后使用响应谱分析程序确定弹性主导模式及其目标位移。MSE 和 LD 方法分别用于确定 BRB 和 FVD 的等效阻尼比和时间段。基础剪切和屋顶位移是使用模态和谱参数根据这些阻尼和时间 = 周期值确定的，与使用 NLRHA 确定的值相匹配，精度分别为 5-10% 和 20-30%。本研究有助于初步确定 EDD 的大小。使用模态和谱参数针对这些阻尼和时间 = 周期值确定的结果与使用 NLRHA 确定的结果相匹配，准确度分别为 5-10% 和 20-30%。本研究有助于初步确定 EDD 的大小。使用模态和谱参数针对这些阻尼和时间 = 周期值确定的结果与使用 NLRHA 确定的结果相匹配，准确度分别为 5-10% 和 20-30%。本研究有助于初步确定 EDD 的大小。