用这些计算方法,首次从实验上求得了空位与溶质原子复合体分别在低张应力状态和无应力状态下的扩散系数。
Using these approaches diffusion coefficients were obtained for the first time for complexes under tensile stress condition and no stress condition respectively.
本文的主要研究内容是型钢混凝土结构和无粘结预应力混凝土结构的抗震性能和设计理论。
The main contents of this thesis are the aseismatic performance and design theory of steel reinforced concrete structures and unbonded prestressed concrete structures.
反应式步进驱动电机的转子无绕组,由被励磁的定子绕组产生反应力矩实现步进运行。
Reactive stepping motor rotor windings without, the excitation of stator winding respond to realize stepping operation torque.
无粘结预应力混凝土梁的分析要比有粘结混凝土梁复杂得多。
Analysis of beams prestressed with unbonded tendon is much more complicated than that of bonded concrete beams.
一个要素,产品安全是捏造的应力应变或无玻璃仪器和系统。
An element in product safety is the fabrication of stress or strain-free glass apparatus and systems.
劲性混凝土柱无粘结预应力转换大梁,是应用在高层建筑的一种新型结构。
Unadhesive prestressed converted deep beam of composite steel concrete column, is a new style structure which used in high building.
目的按照无应力遮挡原理,设计一种治疗尺骨鹰嘴骨折的新型的无应力遮挡的外固定器,使其取得更佳的临床疗效。
Objective an external fixator was designed for curing the ulna olecranon fracture according to the principle of non-stress shelter.
无粘结预应力混凝土扁梁-平板结构体系是一种新型的楼盖体系。
Unbond prestressed concrete wide flat beam-slab structure is a new type of floor system.
体外预应力是指预应力筋布置在混凝土梁体以外的预应力,与之相对的即为传统的预应力筋布置在构件截面内的有粘结或无粘结预应力。
External prestressing means that the prestressing bars are disposed outside the beam bodies, which in tradition are inside the beams with or without bond.
体外预应力是无粘结预应力的一种。
结果表明,尽管作为无粘结钢丝束固定端的梁刚度很大,预应力的效果仍然十分理想。
The results show that the effect of prestressing force is rather ideal, though the rigidity of beams, in which the tendons are anchored, is great.
结果表明,装夹位置对残余应力分布具有重要影响,而装夹顺序对残余应力的分布和幅值无较大影响。
It is verified that clamping points have great effect on the residual stress, but that of the clamping order is little.
研究结果:在同样荷载条件下,板层之间无紧密连接的无碴轨道的板层拉应力要大于板层有紧密连接结构的拉应力;
Research results: Under the same load condition, the tensile stress of ballastless track slabs without close connected is bigger than that of slabs with close linkage structure.
主要介绍无粘结预应力钢绞线的原材质量控制、配料、张拉力值、伸长值的计算及施工工艺。
The paper mainly introduces raw material quality control, calculation of burden, stretch-draw force and elongation value, construction technology of non-bonding prestressed steel strand.
计算UPPC梁(板)的抗弯强度,关键是确定构件在极限承裁能力时无粘结预应力筋的极限应力值。
The key of calculating flexure strength of UPPC beam is to determine unbounded prestressed tendons ultimate value when the components are under their ultimate load ability.
本文采用变刚度的矩阵位移法分析无粘结预应力混凝土网格梁的加载全过程。
This paper presents a matrix structural analysis of variable stiffness on the complete loading history of prestressed concrete grids with unbonded tendons.
反应式步进驱动电机的转子无绕组,由被励磁的定子绕组产生反应力矩实现步进运行。
Reactive stepping motor rotor windings without, the excitation of the stator winding reacts to achieve step operating torque.
通过工程实例,介绍无粘结预应力混凝土技术在大直径圆柱壳中的应用。
This paper presents the application of unbonded prestressed concrete technique to cylindrical shell with big diameter through an engineering case.
分析无粘结预应力混凝土梁桥的主要困难,在于构件的截面强度和构件整体变形耦合。
The main difficulty in analysis of unbonded prestressed concrete beam bridge is the coupling between the sectional strength of member and the whole structural deformation of member.
根据这种方法推导出简便的无粘结预应力筋极限应力计算公式。
Based on the method, a simple formula calculating, the ultimate strength of unbonded prestress tendons was deduced.
并得出了负弯矩筋长度、预应力度对无粘结预应力混凝土连续板的影响。
The effect of different lengths of negative moment reinforcement and levels of prestress on the behavior of the slabs were also acquired.
给出了不同材料强度的无粘结预应力混凝土(upc)梁抗弯强度和结构性能的分析研究结果。
The results of analytical investigation on the flexural strength and structural behavior of unbonded prestressed concrete (UPC) beams with various material strengths were presented.
通过低周往复水平荷载试验,对无粘结预应力板墙结构的工作特性,以及无粘结预应力筋在水平荷载下的变化规律进行了分析。
Rased on the experimental researches, the characteristic behavior of slab and wall structure with unbounded prestressing in the slab under low frequency cyclic loading have been studied.
本文还对结构体系顶层节点处短肢墙墙端的弯矩增大系数和现浇板无粘结预应力筋对结构体系抗震性能的影响进行了讨论。
This paper studies the flexural strength ratio between walls and beams at top floor end joint, and debates the non-cohesive prestressed bars effect on resisting earthquake in the structure.
体外预应力结构的构造形式及施工方法与有粘结或无粘结预应力结构有较大差别,因此,其产生的预应力损失也不同。
The structure and construction method of externally prestressed structures differ greatly from structures with bonded or unbonded tendons, therefore generate the difference in prestressing loss.
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.
最后由积分法导出了主缆索有应力和无应力长的计算公式。
Then the calculation formulas of stressed and unstressed cable length are required by the cable element length's integral method.
本文试图在理论研究和试验分析的基础上,分析探讨中间层无粘结预应力混凝土扁梁框架节点的抗震性能。
Based on the theory and test, the aseismatic behaviour of the joints in the middle level of unbonded prestressed concrete flat beam frame is analyzed and discussed in this paper.
计算了对称和不对称加载的无粘结预应力连续梁的应力增量。
The stress increments of unbonded prestressed tendon in the continuous beams subjected to both symmetrical and asymmetrical loads are analyzed.
计算了对称和不对称加载的无粘结预应力连续梁的应力增量。
The stress increments of unbonded prestressed tendon in the continuous beams subjected to both symmetrical and asymmetrical loads are analyzed.
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