多类型建筑物周期预测公式的实测对比研究

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中图分类号：TU311.3 文献标志码：A DOI： 10.15935/j.cnki.jggcs.20240910.001

AbstractMeasuring the dynamic characteristics of constructed buildings and testing the related period prediction formulas are of great significance for the condition assessment of existing buildings in urban renewal.To this end，pulsation method tests were carred out on 22 buildings of different structural types in the Siping Road Campus of Tongji University，and the natural period and damping ratio of the buildings were identifiedby the random decrement technique，andthe identification results were summarized.The measured values of the natural period of the buildings were compared with 17 natural period prediction formulas for the structures，and the period prediction formulas for diferent structural types were recommended based on the comparison results.

Keywordsnatural period，pulsation method，random decrement technique，damping ratio，prediction formula

0 引言

工程实践中，地震、强风等动力灾害严重威胁建筑结构的安全，因而需在结构设计阶段准确评估结构在上述作用下的动力响应。（剩余9621字）