1) high PPR
高预应力度
1.
Studies on seismic performance of prestressed concrete beams with high PPR;
高预应力度混凝土梁抗震性能探讨
2) high-strength pre-stressed pile
高强度预应力桩
3) high pretensioned stress
高预应力
1.
Based on high pretensioned stress and intensive bolting theory,it was put forward that the high pretensioned stress and intensive cable bolting with shorter length,set in full section and vertical to surface of roadways is an effective supporting type to the roadways with high stress or large deformation.
分析了目前煤矿锚索支护存在的问题,在高预应力强力支护理论的基础上,提出高预应力、长度较短的强力锚索,并全断面垂直岩面布置,是高地压、大变形巷道的有效支护方式。
4) degree of prestress
预应力度
1.
Prestressed concrete structural design based on degree of prestress;
基于预应力度法的预应力混凝土结构的设计
2.
The degree of prestress is an important characteristic of prestressed concrete structure.
选择了几种典型的预应力度定义,分析比较了它们的计算公式,力学概念以及适用范围。
3.
The calculation in the design of this engineering is done by the method of degree of prestress, so the design is clear and easy to calculate.
工程采用预应力度法 (PPR =0 6)进行计算 ,概念明确 ,设计方便 ,为今后超大跨度预应力混凝土结构的设计积累了宝贵的经
5) prestress degree
预应力度
1.
Main introduction of this arcticle is arrangement and defense of tendon,effects of structure capability by tendon area change and reinforcement ratio of General Steal Bar,effects of vertical degree and prestress degree,and the prospects of external prestressing technology in engineering is pointed out.
介绍了体外预应力筋的布置与防护,体外预应力筋面积与非预应力配筋率对结构性能的影响,垂度和预应力度的影响,并指出了体外预应力技术在工程中的发展前景。
2.
Influence of prestress degree and prestressing tendon of the second working state were taken into account in the crack width control method using nominal tensile stress.
在名义拉应力裂缝宽度控制方法中,分别引入预应力度λ的影响和预应力筋第2工作阶段对裂缝宽度控制的有利影响,分别推导了考虑预应力度影响的预应力筋用量计算公式和考虑预应力筋第2阶段有利影响的预应力筋用量计算公式。
3.
The principle of prestressed concrete in pure torsion is investigated, by using the space truss theory with variable inclination, considering softening of concrete, and introducing the prestress degree into the calculation, puts forward a new theoretical method for ultimate torsional strength.
研究预应力混凝土受纯扭作用时的机理 ,运用变角空间桁架原理 ,考虑混凝土的软化效应 ,并把预应力度引入到计算中 ,提出了新的抗扭强度计算公式。
6) prestressing degree
预应力度
1.
The concept of comprehensive prestressing degree is presented in this paper,and based on this,the principle of direct calculation formula is presented.
提出了综合预应力度的概念,并以此提出综合预应力度直接算法的计算原理,克服了利用传统预应力度设计计算超静定结构时所面临的重复计算问题,为预应力结构的计算提供了一个快捷方法。
2.
The following conclusion is put forward: the choosing of the prestressing degree and the arrangement about prestressed steel bar and nonprestressed reinforcement are very impo.
本框架梁两端简支且位置上抬,为框架总长120 m而不设伸缩缝创造了条件;部分预应力混凝土结构采用预应力与非预应力筋混合配筋,正确选用预应力度极为重要;后张部分预应力混凝土结构利用高强钢筋充分发挥材料特性,且比全预应力混凝土结构具有更好的延性。
3.
The author computates the relation between bending moment and curvity at the section under different prestressing degrees; and points out the effect of prestressing degree on bending ductility; and puts forward a method for the promotion of bending ductility.
提出预应力砼截面弯矩－轴力－曲率关系的计算方法，并计算了不同预应力度下截面的弯矩－曲率关系。
补充资料：高八度
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