为探讨岩石的强度理论和中间主应力效应，进行了红砂岩真三轴压力试验。
The true triaxial pressure experiment for red sand rock is conducted for the purpose of investigation into the strength theory of rock and the effect of intermediate main stress.
重点研究了预应力筋的模拟、预应力效应的等效转换和桥梁截面切片技术。
The research results, which can be widely applied in 3D simulation of PC bridges, will have its theoretical and practical significance.
本文研究表明：预应力效应是多方面的，任何复杂的结构都可以使用预应力技术；
This paper shows that prestressing force effects are comprehensive, which extents the application of prestressing force technology.
本文研究表明：预应力效应是多方面的，任何复杂的结构都可以使用预应力技术；
This paper studies internal prestressed concrete deflection and analyze the effect of geometrical nolinearity on external prestressed concrete deflection.
位移统一解合理地考虑了中间主应力效应和围岩剪胀特性的影响，具有广泛的理论意义。
The effects of intermediate principal stress and dilatancy are considered in the unified displacement solution; so the unified solution obtained has very broadly theoretical value.
采用通用有限元程序可对箱梁进行空间分析，但是建模过程复杂，特别是很难考虑预应力效应。
The general FEM program can do the spatial analysis of box girder, but the modeling is very complex and it is difficult to consider the prestress.
对于复杂载荷下的疲劳问题，应该把平均应力效应分为“静态效应”和“动态效应”两个方面。
It is proposed that mean stress effect should be divided into two aspects, i. e. static effect and dynamic effect for fatigue under complex loading.
最后，利用所得的解研究了材料的中间主应力效应和拉压强度差效应对厚壁圆筒安定极限压力的影响。
Finally, the influences of the intermediate principal stress and the strength-difference on the shakedown limit pressure of the thick-walled cylinder are investigated by the present solution.
因此文中所给出的解可以灵活应用于各种性能的材料，可以充分反映材料的SD效应及中间主应力效应。
The obtained results can be used to fit the properties of different kinds of materials with SD effect and intermediate stress effect.
另外，分析比较了一座直线多室箱梁桥在不同支承方式下恒活载效应、预应力效应、次反力和二次内力的异同。
Additionally, the difference of total effect and secondary forces due to prestressing tendons under two kinds of boundary conditions is given.
但与双剪统一屈服准则不同，新屈服准则的极限线和中间主应力效应曲线是非线性的，能够描述材料的非线性屈服特性。
The loci and the effective curves of the criterion are of nonlinear types that could give a better description to the yield characteristics of materials.
观测到11H、22H、33H和11L等激子跃迁结构。 计及晶格失配导致的应力效应，对子能级结构进行了理论计算。
The heavy and light hole excitonic transition structures 11H, 22H, 33H and 11L were observed and the theoretical calculations , including the strain effects, were performed.
曲线箱形梁桥是空间复杂受力的结构体系，预应力效应一方面能提高构件的承载能力，另一方面也可能对结构带来一些不利的影响。
Curved box girder bridge is a complicated spatial structural system. The effect of prestressing may improve the bearing capacity of the members, but may also adversely affect the structure.
回顾来看，人们很容易低估skype工程师团队的质量以及Skype的网络效应力量。
In retrospect, it was easy for people to underestimate the quality of the Skype engineering team and the power of Skype's network effect.
当在机械应力作用下导线产生电能，这被称之为压电效应。
The wires produce electricity when under mechanical stress, called the piezoelectric effect.
主要是明显的尺寸效应和凝固、收缩、应力等问题，避免或减少铸铁井盖的成分偏析、变形、开裂等缺陷的产生。
Is mainly the size effect and solidification, shrinkage, stress and other issues clearly, to avoid or reduce the segregation, iron manhole cover deformation and crack defects.
所以细砂岩试样的非线性蠕变程度随加载应力水平的提高而提高，载荷效应明显。
Thus, the degree of nonlinear creep for fine sandstone specimen increases along with loading stress with obvious stress effect.
在分析动载荷下的应力和变形时，除考虑横向剪切效应外，还须考虑微段的惯性力和阻尼力矩。
In the analysis of the stress and deformation under dynamic loading, the inertia force and damping moment should be considered in addition to the transverse shear effect.
混凝土约束改变了有效应力-应变关系：造成强度和临界应变的增加。
Confinement of concrete results in a modification of the effective stress-strain relationship: higher strength and higher critical strains are achieved.
计算结果表明，复合地基是否具有应力扩散的效应受很多因素影响，如加固层的几何性质、荷载分布的几何性质等。
It can be seen from the results that the properties of stress dispersion of composite ground are affected by many factors, such as geometrical properties of reinforced layer and load.
为了尽量减小这种效应产生的电流，重要之点在于消除绝缘子上的机械应力并使用压电效应和储存电荷效应最小的绝缘材料。
To minimize the current due to this effect, it's important to remove mechanical stresses from the insulator and use insulating materials with minimal piezoelectric and stored charge effects.
同时，也使用2种骨重建算法和实验性骨矿含量检查了潜在的应力屏蔽效应。
Also, the potential stress shielding effect was examined using the 2 bone remodeling algorithms and the experimental bone mineral data.
当等效应变速率较大时，变形热效应对流动应力的影响相当显著，压缩过程基本上成为绝热过程。
While the equivalent strain rate is high, this influence is of importance and the compression process can be approximately considered as an adiabatic process.
本文提出的预应力结构中考虑温度效应的经验公式，可用于指导设计与施工。
The experiential formulas of temperature effect on prestressed structures can guide design and construction.
本文主要研究了钢板薄膜效应和预应力撑杆柱两项钢结构新技术。
In this dissertation, two new steel structure technologies in the aspects of membrane effect of steel and stayed column is researched and discussed.
整个试验过程中轴向有效应力差异较大，而侧向有效应力差异较小。
At the whole of tests, axial effective stress has less difference, while lateral effective stress has bigger difference.
在不同温度水平和不同有效应力水平下，进行了砂岩的孔隙度试验。
The porosity test for sandstone was conducted at various temperature level and various effective stress level.
研究表明，荷载瞬时作用后，地基中有明显的有效应力变化，这是地基产生初始沉降的原因。
From the analysis, it is found that the changing of the effective stress in the ground results in the immediate settlement.
饱和大理岩具有显著的应力振幅效应和频率效应以及各向异性。
The influence of stress amplitude on marble is much larger than that of frequency.
土体中大量降排水的过程实际上是土体中有效应力增长的过程。
The process of pore water discharge in soils is actually a process of effective stress increase.
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