Specimens of 16 unbonded prestressed concrete beams under low cyclic loading were tested.
完成了16根无粘结预应力混凝土梁的低周反复荷载试验。
Main Outcome Measures: Torsion, bending, and axial stiffness and axial failure force after cyclic loading.
主要测量指标：扭转、弯曲和轴向刚度，以及循环载荷下轴向失效力。
The iterative formulas of elastoplastic stochastic finite element method under cyclic loading were deduced.
推导了交变载荷下弹塑性随机有限元法迭代格式。
Graphite plays a role as pores in the interface and increases the stress concentration under cyclic loading.
在滚动接触疲劳试验时循环载荷的作用下，界面处的石墨相当于孔洞引起应力集中。
The authors also successfully predict the relaxation of the residual stress under successive cyclic loading.
计算预言了脉动循环载荷下自增强残余应力的松弛现象。
The cyclic loading not only affect the inner part of the material but also the surface state of the corroding surface.
交变载荷不但影响了材料的内部，同时也影响了腐蚀表面的表面状态。
The fatigue behavior of concrete under axial tension with constant and variable amplitude cyclic loading is investigated.
基于室内试验，研究了混凝土在等幅和变幅重复荷载作用下的轴拉疲劳性能。
The crack fractographs of X60 pipeline steel after 10% per-tension deformation under cyclic loading are investigated by the SEM.
用扫描电镜（SEM）分析了X60管线钢在未变形和10%的预拉伸变形后循环载荷下的裂纹断口形貌。
The crack propagation characteristics of X70 pipeline steel in the synthetic soil solution under cyclic loading are investigated.
试验研究了X70管线钢在模拟土壤介质中，循环载荷下的裂纹扩展特性和宏观规律。
Mechanical characteristics of rock joints and interfaces under cyclic loading are important to stability safety of upper structure.
岩体结构面在循环加载条件下的力学特性直接关系到上部结构的稳定安全。
The experimental results showed that the dynamic strain has feature of cyclic creep. Cyclic loading affected the creep and creep speed.
结果显示动态应变呈循环蠕变状态，蠕变的大小、速度与循环应力幅值有关。
The fatigue behavior of cement-sodium-silicate-grouted soil is investigated by cyclic loading test of dynamic asymmetric sine wave load.
采用载荷控制、非对称正弦波动态载荷变化方式对水泥土进行疲劳载荷试验。
At the same time, with some rock samples from Shandong province, sound wave experiments and uniaxial cyclic loading tests are carried out.
同时采用声波实验和单轴循环加载实验相结合的方法，以山东某矿勘探区岩体为试验对象，对取自该矿区的岩样进行了实验。
Strength and deformation were studied on plastic concrete in different loading ways through direct and cyclic loading and unloading testing.
通过塑性混凝土在单调和循环加卸载下的试验，对不同加卸载作用下塑性混凝土的强度和变形性能进行研究。
Corrosion pitting also can lead to fatigue crack initiation depending on the component, the location of pitting, and cyclic loading conditions.
腐蚀斑点还会因不同的部件、斑点的位置和循环载荷状况，导致一些不同的疲劳裂纹。
As a result, the stress-relaxation of yarn is obviously observed, and the cyclic loading has much more influence on the tensile property of yarn.
试验结果表明，玻璃纤维长丝纱有较明显的应力松驰现象，反复循环负荷作用对玻璃纤维长丝纱的强伸性能有较大的影响。
The models of moment-rotation relationship of flush end-plate composite connections were put forward for the monotonic loading and cyclic loading.
目的研究半刚性连接弯矩-转角关系，为半刚性组合框架设计提供依据。
The research results show martensite transformation stress decreases with an increase in cycle due to the residual strain during full cyclic loading.
研究表明在完全循环加载过程中，由于残余应变的存在，马氏体相变应力随循环增加而减小。
High temperature low cycle fatigue (HLF) life prediction models have great significance for design of high temperature structure under cycLic loading.
高温低周疲劳(HLF)寿命预测方法对于承受变幅载荷的高温构件的设计具有重要意义。
The calculation results were compared with those obtained by relevant cyclic loading test results, and the validity of this proposed model was verified.
最后将该方法的计算结果与相关循环荷载试验结果进行了对比，结果证明了该模型的有效性。
For concrete in compression zone a stress-strain relation for repeated axial compressive cyclic loading, is adopted instead of that for reversed loading.
对混凝土受压区采用轴向重复加载的应力-应变关系而不是反复加载的。
The transient effective shear-strength theory characterizing the strength change behavior of saturated sand under cyclic loading is presented in this paper.
本文给出了一个适用于表征饱和砂土在往返荷载下强度变化特性的瞬态有效抗剪强度理论。
The (aeolotropism) and Bauschinger effect resulted from plastic deformation under cyclic loading were reflected by the kinematic hardening model in the SFEM.
针对复杂的交变载荷，采用运动强化模型反映塑性应变引起的各向异性和包辛格效应。
This paper presents the drained test of saturated tailing sand in dynamic simple shear apparatus by measuring volume change of the sample under cyclic loading.
本文通过对饱和尾矿砂在振动单剪仪上的排水试验，量测了试样在周期荷载下的体积变化。
Cyclic loading can result in severe degradation of bond between reinforcing steel bar and the surrounding concrete, especially when the reinforcement is corroded.
反复荷载可导致钢筋与混凝土之间粘结的严重退化，尤其在混凝土中的钢筋受到腐蚀后。
The test results of eight composite and two normal reinforced concrete continuous beams under low cyclic loading and monotonic loading respectively are presented.
本文介绍八根迭合与两根整浇钢筋混凝土连续染，分别在单向荷载与低周反复荷载作用下的试验结果。
The reduced stresses in the longitudinal bars help to achieve less critical bond condition under the cyclic loading, especially in the lack of column axial force.
降低了的梁内纵筋的应力能在反复循环荷载下获得较为有利的粘结条件，特别是在缺少柱上轴向压力的时候。
Based on the shear-lag model and the usual loading way, the computation model of interfacial debonding stress under tension-tension cyclic loading is established first.
基于剪切筒模型和常用疲劳加载方式，首先建立了循环荷载作用下钢筋与混凝土界面脱粘应力的计算模型；
A new constitutive model, namely equivalent viscoplastic model, adaptive to cumulative deformation computation of sandy silt under long-term cyclic loading is proposed.
提出了适用于长期循环荷载作用下粉细砂累积变形计算的等效黏塑性本构模型及数值模拟方法。
To investigate the flexural capacity of connections for concrete-filled steel square tubular columns with inner diaphragms, 3 specimens were tested under cyclic loading.
为了研究方钢管混凝土柱内隔板式节点的抗弯受力性能，完成了3个方钢管混凝土柱内隔板式节点的低周反复荷载试验。
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