serviceability testing 中文意思是什麼
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Testing results indicated that in the state of serviceability, the members ’ natural frequencies and dynamic - stiffness are descent because of damage. and the degree of damage can be detected by the descent degree of natural frequencies and dynamic - stiffness
試驗結果表明，梁損傷后固有頻率和剛度均有所下降，建議可對不同荷載下構件頻率下降程度進行分析與總結，進而由固有頻率下降程度來診斷結構的損傷程度。
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