本文推导了材料为理想弹塑性的空间梁单元弹塑性刚度矩阵的显式形式。
An explicit expression of stiffness matrix for a 3-dimensional beam made of elastic-plastic material is derived in the paper.
本文采用三维弹塑性增量变塑性刚度有限元法计算地下洞室围岩稳定。
In this paper, the elastoplastic incremental finite element method with variable plastic stiffness is used to analyse the surrounding rock stability of underground openings.
本文以变刚度的增量原理为基础，论述了复合材料组合网架的弹塑性设计方法。
This paper, basing on the principle of the changing rigidity, discusses the clastic-plastic designing method of the complex material grids.
初始弹性侧移刚度比对框支配筋砌块砌体剪力墙结构的薄弱层位置、弹塑性变形性能和破坏形态的影响较大。
The value of lateral stiffness ratio has significant influence on the place of weak story, elastic-plastic distortion and failure characteristic.
在王焕定等人试验的基础上，针对变刚度钢管混凝土短柱隔震装置提出了便于弹塑性时程分析中应用的双向恢复力模型。
On the experiment of Wang Huan-ding, an elastoplastic biaxial hysteretic model for variable stiffness base isolator made of concrete-filled steel tubular short column is proposed in this paper.
隔震结构的地震反应主要取决于隔震层的刚度和弹塑性性能。
Isolated seismic response depends mainly on the stiffness of isolation layer and the elastic-plastic properties.
可基于截面刚度矩阵以及现有的位移模式推导出弹塑性阶段的单元刚度矩阵。
According to section stiffness matrix and available displacement mode, element stiffness matrix of elastoplastic stage was derived in this paper.
本文提出了用于岩土弹塑性有限元分析的隐式积分弹性刚度算法。
An implicit integration elastic stiffness method has been developed for the finite element analysis of rock and soil elastoplastic models.
针对医院建筑的刚度突变、结构不规则等特点进行了抗震弹性及弹塑性分析，并结合不同的结构类型探讨了楼梯对结构的影响。
Elastic and inelastic analyses were provided to discuss the stiffness sudden change and the irregularity. The influences of stair on structures were compared with different types of structures.
针对医院建筑的刚度突变、结构不规则等特点进行了抗震弹性及弹塑性分析，并结合不同的结构类型探讨了楼梯对结构的影响。
Elastic and inelastic analyses were provided to discuss the stiffness sudden change and the irregularity. The influences of stair on structures were compared with different types of structures.
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