It is found that the ductile strengthen member (concrete fill steel tube) play an important role to prevent the structure from collapse after the shear walls partially yield.
结果表明，混凝土芯筒的剪力墙屈服后，其内置的延性加强构件(钢管柱)对结构的防倒塌有显著的作用。
Ductile Iron has a higher yield strength than cast steel 40k vs. 30k.
铸钢的屈服强度是30K，而球墨铸铁的屈服强度更高，达到40 K。
Ductile iron has yield strength of 40k and cast iron has none.
球墨铸铁的屈服强度是40K，而铸铁没有屈服强度。
Ductile iron regularly produced by NIBCO has a tensile strength in excess of 60,000 pounds. Yield strength is in excess of 40,000 pounds.
通常由美国尼伯科生产的球墨铸铁的抗拉强度都超过60,000磅，屈服强度超过40,000磅。
Ductile iron regularly produced by NIBCO has a tensile strength in excess of 60,000 pounds. Yield strength is in excess of 40,000 pounds.
通常由美国尼伯科生产的球墨铸铁的抗拉强度都超过60,000磅，屈服强度超过40,000磅。
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