Research on law of stress increment of unbonded tendons in continuous prestressed concrete beam and slab;
比较了有粘结与无粘结力筋两种预应力混凝土结构的优缺点。
The bending stress and the stress increment of uneven loaded wire stress above the average stress are taken as secondary stress in the thesis.
本文研究的次应力包括主缆局部弯曲应力和超出平均应力的钢丝不均匀应力增量。
The theoretical result shows that the direction of plastic strain increment is determined by the direction of principal stress and stress increment.
从理论上说明塑性应变增量的方向不仅与应力的主方向有关，还与应力增量的方向有关。
Thus the stress increment of the external tendons under the action of various loads type and size and its location has become an important research project.
而体外索在不同荷载形式及其大小、作用位置等因素影响下的应力增量就成为一个重要的研究课题。
By plasticity increment theory, the stress strain numerical calculate methods of bellows bulge forming, solvers theory calculating problems of bellows bulge forming technology are put forward.
采用塑性增量理论，建立了波纹管液压胀形的应力、应变数值计算方法，解决了波纹管液压胀形工艺的理论计算问题。
Then the increment stress - strain relation of plasticity on the corner of the yielding surface is presented by the Koiter theory which is connected with the above hardening function.
它与夸脱理论相结合，得到了在角点处的塑性增量应力应变关系，在角点上剪应力增量与剪应变增量间是单值确定的。
The strain path theory is different from the plastic flow theory since it gives a nonlinear relation between stress deviation increment and strain deviation increment.
应变路径理论与传统的增量理论不同之处在于其偏应力增量和偏应变增量之间为一非线性关系。
The 3d constitutive relationship of concrete model is based on the isotropic approach of material with stress strain increment relationship.
基于材料的各向同性理论，根据应力—应变增量关系，建立了一个混凝土的三维本构关系模型。
Thirdly, we apply the theory of increment method to analyze the stress field of basement in construction period under the action of temperature and shrinkage strain by finite program ANSYS.
再次，运用增量法的原理，用ANSYS分析地下室结构施工期间在温度、收缩变形作用下的应力场。
The concrete slab stress of the pressed flange decreases with the increment of time. But the diminished stress value decreases with the increment of the shear connector rigidity.
受压翼缘混凝土板的应力随着时间的增加而减小，但减小的幅度随剪力连接件的刚度增加而减小。
The relation between deformation and stress was explained with nonlinear elastic increment theory, and the method of checking the cracking rupture was also given.
用非线性弹性增量理论解释了变形和应力的关系并说明验算裂缝的方法。
The evolution curve show known that fractal dimension and damage variable present nonlinear increase with the increment of stress, and the change of fractal dimension is relatively smooth.
通过演化曲线可以看出，分形维数与损伤变量随应力的递增均呈非线性增加，但分维的变化较平缓；
Furthermore, the influence of the different heat source conditions on the temperature increment, stress, displacement and pore water pressure is discussed.
通过数值计算讨论不同的热源输入对地基温度增量场、应力场、位移场以及孔隙水压力的影响。
The direction of plastic strain increment is nearly independent of the stress path. The shape of yield sur- face on hardening e…
塑性应变增量方向与应力路径没有很大关系，以等塑性体应变为硬化参数的屈服面形状也是椭园。
The direction of plastic strain increment is nearly independent of the stress path. The shape of yield sur - face on...
塑性应变增量方向与应力路径没有很大关系，以等塑性体应变为硬化参数的屈服面形状也是椭园。
The values of density damage at any stress state and position are gained by analysis of density damage increment.
密度损伤增量分析可以获得密度损伤增量图像和岩石试件内部任意应力状态、任意部位的密度损伤值。
When the sand is loaded along the constant strain increment ratio paths, the ratio of lateral to axial stress will eventually approach a constant value, i. e. the asymptotic stress ratio.
当沿着等应变增量比路径加载时，应力比最终趋于一个常数，即渐近状态的应力比；
The device can be applied in the investigation of stress-strain behavior of sand loaded along constant strain increment ratio paths.
研制开发的试验设备可用于研究砂土在等应变增量比加载条件下的应力应变响应。
The results indicate the stability of deviated wells increases with deviation increment when the vertical stress is intermediate stress.
研究结果表明，当垂向应力为中间应力时，斜井的稳定性随井斜角的增大而增大。
The paper presents a numerical method, named the Finite Strip Plasticity Coefficient Increment Initial Stress Method, to solve the elastoplastic stability ultimate loads of steel columns.
本文给出了计算钢压杆弹塑性稳定极限承载力的有限条塑性系数增量初应力法。
Then the increment of stress intensity factor K and its controlling section rp are analyzed with the volume content of holes in 3D braided CMC.
接着又分析了应力强度因子K及K控制区随孔洞体积分量的变化规律。
Experimental results show the typical characteristics of soil liquefaction: excess static pore-water pressure increases, effective stress decreases, and volumetric strain increment increases.
试验结果验证了砂土液化典型特征：超静孔隙水压升高，有效应力降低，体积压缩积累增大。
The results showed that electric conductivity and MDA content of different tree species had the trend of increment, but the change of proline content was varied under waterlogging stress.
结果表明：淹水胁迫下，不同树种的相对电导率及丙二醛含量均呈上升趋势，而游离脯氨酸含量的变化则存在显著差异。
The results showed that electric conductivity and MDA content of different tree species had the trend of increment, but the change of proline content was varied under waterlogging stress.
结果表明：淹水胁迫下，不同树种的相对电导率及丙二醛含量均呈上升趋势，而游离脯氨酸含量的变化则存在显著差异。
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