Abstract The enhanced frequency domain decomposition (EFDD) method can yield different results with respect to modal parameters depending on the measurement and analysis conditions of the target building. Consequently, field measurement guidelines for EFDD are required. In this paper, a practical field measurement technique is proposed for the identification of modal parameters of high-rise buildings in use or under construction. Based on the modal analysis of the numerical analysis model and structural response from two high-rise buildings, the criterion for the lower bound and upper bound of the three measurement and analysis conditions from the modal analysis process were suggested as the minimum conditions for an enhanced frequency domain decomposition (MCEFDD) method. It was verified with structural responses from a 35-story building that the proposed MCEFDD method yields reliable model parameter results. The proposed MCEFDD method can be used for practical measurements of responses high-rise buildings in field.

中文翻译：

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用于识别在建或在用高层建筑模态参数的现场测量

摘要 根据目标建筑物的测量和分析条件，增强频域分解（EFDD）方法可以产生不同的模态参数结果。因此，需要 EFDD 的现场测量指南。本文提出了一种实用的现场测量技术，用于识别在用或在建高层建筑的模态参数。基于对两座高层建筑的数值分析模型和结构响应的模态分析，提出了模态分析过程中三个测量分析条件的下界和上界准则，作为增强结构的最小条件。频域分解 (MCEFDD) 方法。已通过 35 层建筑的结构响应验证了所提出的 MCEFDD 方法产生可靠的模型参数结果。所提出的 MCEFDD 方法可用于现场响应高层建筑的实际测量。