A.阻尼比B.動(dòng)應(yīng)變C.動(dòng)撓度D.速度
A.28d拔力平均值≥設(shè)計(jì)值,最小拔力≥0.9設(shè)計(jì)值B.14d拔力平均值≥設(shè)計(jì)值,最小拔力≥0.9設(shè)計(jì)值C.14d拔力平均值≥設(shè)計(jì)值,最小拔力≥0.6設(shè)計(jì)值D.28d拔力平均值≥設(shè)計(jì)值,最小拔力≥0.6設(shè)計(jì)值
A.20B.30C.40D.50