Entropy algorithms for detecting incipient damage in high-rise buildings subjected to dynamic vibrations

摘要

Civil structures are considered vital elements to the society and economy, but they are susceptible to different kinds of damage during their lifetime. Hence, the development of methodologies capable of assessing the condition of civil structures is of paramount importance. In this work, a new entropy-based methodology for detecting incipient damage in a high-rise building subjected to dynamic vibrations is presented. As different entropy methods have been introduced in the literature, the most representative entropy methods, Shannon entropy, Renyi entropy, approximate entropy, sample entropy, permutation entropy, and dispersion entropy, are investigated for evaluating their performance for damage detection. For performing this task, the vibrational responses measured in the high-rise building to different levels of damage are analyzed.