A.結(jié)構(gòu)的剛度 B.結(jié)構(gòu)的穩(wěn)定性 C.設(shè)計(jì)汽車荷載效應(yīng) D.結(jié)構(gòu)抗力效應(yīng)
A.7Hz B.10Hz C.15Hz D.30Hz
A.4% B.6.800000000000001% C.3.9% D.2.9%