根据对变形的不同定义，可以将延性系数分为曲率延性系数、位移延性系数和转角延性系数。曲率延性系数只表示某一截面的延性，而位移延性系数和转角延性系数则反应的是构件的宏观延性反应，与构件的长度有密切关系。 曲率延性系数定义为截面的极限曲率与屈服曲率之比。 位移延性系数定义为构件的极限位移与屈服位移之比。
In the same circumstance,with the increment of slenderness ratio, the ductility factor increases.
在其它条件相同的情况下,随着长细比的增加,柱的延性系数增大。
参考来源 - 钢筋混凝土柔性墩柱的抗震性能试验研究And the utmost elastic-plastic displacement and ductility coefficient of the RC shear wall with concealed bracings increased notably when the capacity didn’t drop notably. And higher the reinforcement proportions of the concealed bracings, higher the elastic-plastic displacement and ductility coefficient.
带暗支撑剪力墙在荷载无显著下降时的弹塑性最大位移及延性系数均比普通剪力墙有显著提高，暗支撑配筋比例越高，提高越明显。
参考来源 - 带暗支撑双肢剪力墙抗震性能试验及设计理论研究It also has calculated joints’load capacity ratio,the first yield displacement and force and the ductile ratio,and made evaluating and comparing with them .
得到了各节点的承载效率、节点首次屈服的位移和荷载以及延性系数,并对其进行量化比较和评价。
参考来源 - N型圆钢管相贯节点滞回性能研究The relation about reinforcing steel bar concrete between section curvature (curvature ductile coefficient) and bending moment, the ratio of axis pressure is analysis according to reinforcing steel bar, stress-strain relation and restriction concrete.
利用约束混凝土的特性,根据钢筋的应力-应变关系分析钢筋混凝土构件的弯矩、轴压比与截面曲率、曲率延性系数的关系。
参考来源 - 公路梁桥延性抗震分析及设计方法Also, ductility modulus has been adopted to measure the ductility of RCRC beam, which was defined as the ratio of ultimate curvature of section to subdued curvature of section of RCRC beam.
同样,本文采用延性系数作为橡胶集料钢筋混凝土梁延性的评价指标,其定义为梁截面的极限曲率和屈服曲率的比值。
参考来源 - 橡胶集料混凝土脆性与延性性能研究及在桥面铺装层上的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
柱脚延性系数要大于整体框架的延性系数。
Ductility factor of the column foot was bigger than that of the integral frame structure.
近似得出曲率延性系数的概率分布函数和特征值。
The probability distribution function and the characteristic value of the curvature ductility factor are presented.
有必要对疲劳系数，如延性系数的定义作详细讨论。
It is necessary to elaborate on the definition of a fatigue coefficient such as that for ductility.
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