满应力设计准则是近似的，同时必须循环运用应力比算法。
The fully stressed design criterion is approximate and the stress ratio algorithm must be used repeatedly.
介绍了高流态自密实砼的性能、配合比设计方法及其在中等强度等级预应力受弯拉砼构件中的应用试验及测试情况。
This paper introduced the characteristics of high dense fluid concrete, design of batching ratio, the experiment and test of bent concrete component in medium hardness prestress.
计算结果表明，运用非线性理论求得的最大应力比常规设计要小15 ~ 20%。
The calculate data show that the maximum normal stress given by the nonlinear method is 15-20% less than that by linear one.
工程设计实践中将无粘结预应力混凝土梁的安全贮备比有粘结预应力的计算结果提高15%有一定的合理性。
It seems reasonable in practice to increase the safety margin of unbonded members by 15% in comparison with the bonded prestressed concrete bending members.
在高低周复合疲劳研究中采用了正交试验设计的方法，并以此为基础综合研究了低周应力、高低周应力比、高周循环次数和高周循环频率对复合疲劳寿命的影响及其机理。
Based on the orthogonal test design, this paper studied the effect of low cycle stress, high-low cycle stress ratio , high cycle number and high cycle frequency on complex fatigue life.
最后借助ANSYS优化设计模块进行仿真实验，在材料许用应力下对变幅杆进行优化设计，获得了谐振比达12.35的新型变幅杆。
At last, under the allowable stress with ANSYS to optimize the design of the final model and gain a new kind of horn with resonance of 12.35.
注浆体配合比是预应力锚固体系优化设计的关键参数之一，对岩锚抗拔特性影响显著。
The influence of mixture ratio of grouting material on the pull-out behaviors of rock cable is obvious, which is one of key parameters for the optimal design of prestressed anchorage systems.
本文作者运用弹性地基梁理论及《砌体结构设计规范》中关于墙梁设计的有关规定，通过控制墙端局部压应力，可直接推导出托梁高跨比的计算公式。
Calculation formula of height-span-ration of supported beam can be directly deduced through controlling local stress in the end of the wall beam.
文中还提出了抽油杆等应力比的设计思路和方法，并编制了相应的机抽参数优化设计软件。
The design philosophy and method for equal stress ratio of pumping rod are proposed and the corresponding software for optimization design of rod pumping parameters is compiled.
文中还提出了抽油杆等应力比的设计思路和方法，并编制了相应的机抽参数优化设计软件。
The design philosophy and method for equal stress ratio of pumping rod are proposed and the corresponding software for optimization design of rod pumping parameters is compiled.
应用推荐