1) stiffness degeneration method
刚度退化法
1.
With the quality defects in construction of grid structures with welded spherical joints,stiffness degeneration method is proposed to simulate the effects of construction quality on reliability of grid structure with welded spherical joints.
针对焊接球节点网架结构施工中存在的缺陷,提出用刚度退化法仿真施工质量对焊接球节点网架结构可靠性的影响。
2) stiffness degradation
刚度退化
1.
Research on behaviors of frame-shear wall structures based on stiffness degradation;
基于刚度退化的框-剪结构受力性能研究
2.
In this paper,a new rate-dependent concrete elasto-plastic damage model for simulating the mechanical behaviors of concrete is established by introducing the effect of strain rate,damage variable and stiffness degradation variables.
通过引入应变速率、损伤变量以及刚度退化指标等参数,建立了应变率相关的混凝土弹塑性损伤模型。
3.
The real stiffness of frame in different deformation phases was determined according to experimental data,and the stiffness degradation coefficient was adopted to revise the stiffness of each floor.
根据模型试验数据确定各变形阶段框架的实际抗侧刚度,采用框架抗推刚度退化系数对框架各楼层抗推刚度进行修正,再引入周期、剪力与侧移修正系数对弹性阶段的结构受力性能予以修正,提出一种考虑刚度退化时框架结构的计算方法,并给出具体计算步骤。
3) rigidity degeneration
刚度退化
1.
The hysteretic behavior, rigidity degeneration, ductibility and capability of energy dissipation are analyzed by loading the structures in two principal directions.
通过三根不等肢配箍矩形框架柱在斜向低周水平反复荷载作用下的模型试验,结合以往试验数据,从滞回性能、刚度退化、延展性、耗能能力等方面对不等肢配箍矩形框架柱的抗震性能进行分析。
2.
Based on the experiments under low reversed cyclic loading,failure pattern,hysteresis curves,skeleton curves,restoring force model,displacement restoring capacity,ductility and rigidity degeneration of prestressed concrete beams with high PPR are studied systematically.
基于低周反复荷载试验,对高预应力度混凝土梁的受力过程、破坏形态、滞回曲线、骨架曲线、恢复力模型、变形恢复能力、延性、刚度退化等抗震性能进行了较深入的研究分析。
3.
Based on the experiment of columns under low-frequency cyclic loads, this paper discovers that rigidity degeneration is not obvious during the early loading stage but increases after the crack appears.
双向受剪框架柱在反复荷载作用下的刚度退化是结构抗震分析中的重要内容。
4) stiffness degeneration
刚度退化
1.
Based on the nonlinear theory,the accumulation effects of grade stiffness degeneration are considered in structural deterioration.
采用材料非线性理论,从刚度退化的角度考虑了结构损伤的累积效应,分析了既有钢筋混凝土刚架拱桥结构内力及变形,并依托实体工程进行了结构损伤诊断的数值模拟和非线性分析计算。
2.
In order to master the mechanical behaviors of vertical connection and correct design in prefabricated reinforced concrete (PRC) structures the strength degeneration and stiffness degeneration of the connection under repeated loading are analysed based on test results and theoretical analysis.
为了了解PRC结构竖缝的抗震性能,并进行合理的设计,以试验结果及理论分析为基础,对竖缝在反复荷载作用下强度和刚度的退化进行分析,认为接缝混凝土强度的退化率随接缝宽度的增大而减小;接合筋强度退化率仅与剪切摩擦系数有关;接缝强度的退化率随接缝宽度增大而减小,与接合筋的关系呈非线性;接缝刚度退化率随缝宽增大而减小,与接合筋关系不大。
5) Degradations of strength and stiffness
强度与刚度退化
6) stiffness degeneration coeffcient
刚度退化系数
1.
Through analyzing the load-displacement curves and skeleton curves the changing law of stiffness degeneration coeffcient with sample top displacement can be obtained compared to the stiffness degeneration law of common R.
通过对试验所得各试件滞回曲线及骨架曲线的分析,得出刚度退化系数随试件顶点位移变化的规律,并与有关文献中普通钢筋混凝土剪力墙刚度退化规律进行比较。
补充资料：退化核法
退化核法
degenerate kernels, method of
退化核法【魄~扭.”长妇，.仪‘目of;.opo二八eH-H“x“八eP MeT叭」 为了求某些类型的线性或非线性积分方程的近似(数值)解而构造近似方程的一种方法.适宜用这种方法求解的积分方程的主要类型是一维线性第二类F氏月11ohn积分方程.应用退化核法求解这类方程在于用形如 N 蛛(x，s)=艺久(x)瓦(s) 月=l的退化核来近似代替积分方程 b *，(x)+了。x，:)，(:)J、一，(二)(1)的核K(x，s)，然后解F代过holm退化积分方程(山罗ne-mte inte脚1叫旧tion) b 布。)+丁‘(x，。石(、)*一，(二).(2)于是，解方程(2)化为解线性代数方程组.可以用不同方法由核K(x，s)求得退化核凡(x，s)，例如，把这个核展开为Taylor级数或Founer级数(其他方法见E匕怕四叨法(决亡曰比以nn岭t址刘);带形法(积分方程)(striPn坦thod(integ爪1闪Uations)))， 退化核法可应用于形如(l)的积分方程的方程组、具有比较简单的积分区域的多维方程、以及某些非线性的H~记访型方程(见H自n.能”触in方程(H即rn叮r巧tein叫uation)).
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条