1) test of shrinkage and creep
收缩徐变试验
1.
When the method is used,there is no need to implement material test of shrinkage and creep,thus it can avoid the errors that might be resulted from deducing the real shrinkage and creep of concrete under the bridge working environment through the test results obtained under standard condition.
以8根不同掺量的高性能粉煤灰混凝土无黏结预应力梁的收缩徐变试验为基础,提出了从混凝土模型梁短期试验值推算相应混凝土梁在该桥梁工作环境下收缩应变及徐变系数的方法,进而得出桥梁的徐变长期效应计算式;结合桥梁规范JTG D62—2004中收缩模型与徐变模型的思想,得出计算混凝土桥梁收缩应变及徐变系数的修正公式。
2) shrinkage and creep
收缩徐变
1.
Finite element method and application for the shrinkage and creep of concrete bridges;
混凝土桥梁收缩徐变计算的有限元方法与应用
2.
Effect of shrinkage and creep of concrete on curved steel-concrete composite box girder bridges;
混凝土收缩徐变效应对曲线钢-混凝土箱形结合梁桥的影响
3.
Analysis on shrinkage and creep for reinforced concrete column
钢筋混凝土柱收缩徐变分析
3) creep and shrinkage
徐变收缩
1.
It is difficult to predict long-term deflection of cracking concrete members,steel ratio,magnitude of load,creep and shrinkage effect are all the important factors which affect long-term deflection of members.
开裂混凝土构件的长期挠曲变形难以预测,配筋率、荷载大小及徐变收缩效应均是影响构件长期挠曲变形的重要因素。
2.
Formulas are deduced to calculate creep and shrinkage stresses of reinforced concrete beams based on creep transformed-section method,and creep coefficients of plain concrete are obtained according to two years test on concrete columns.
基于徐变换算截面法推导了钢筋混凝土梁徐变收缩引起的截面应力计算公式,根据混凝土柱体2年试验观测,得到了素混凝土的徐变系数。
3.
Based on the inductive analysis to theories, aimed at perfection to software development, the paper expands three modules to the bridge software BridgeMaster about to be developed--data input system, creep and shrinkage analysismodel and pre-stress analysis model.
本文以理论归纳分析为基础，以软件开发完善为目的，对拟开发的桥梁软件Bridge Master扩充了三大模块——数据输入系统、徐变收缩分析模块及预应力分析模块。
4) creep and shrinkage
收缩徐变
1.
The creep and shrinkage of concrete in concrete filled steel tubular(CFST)arch bridge was simulated by finite element method(FEM).
采用大型通用有限元软件ANSYS计算钢管混凝土拱桥拱肋混凝土的收缩徐变量值,将计入混凝土收缩徐变前后的拱桥内力与应力值进行比较,分析混凝土收缩徐变对结构变形的影响,得出了钢管混凝土拱桥收缩徐变的规律:混凝土的收缩徐变使钢与混凝土之间的内力与应力发生了明显改变,引起钢管应力增加,混凝土应力减
2.
The influences of dead weight of structure,temporary load,structural stiffness,creep and shrinkage in concrete effect on finished dead state of hybrid girder cable-stayed bridge were analysed.
以广州东沙大桥独塔边跨带辅助墩的混合梁双索面斜拉桥为例,采用对比分析的方法,定量分析结构自重、临时荷载、结构刚度、混凝土收缩徐变这些因素对混合梁斜拉桥成桥状态的影响。
5) creep test
徐变试验
1.
The method of three-point loading was used in the creep test of the reinforced concrete beam.
文中采用三分点加载的方式进行了配筋混凝土小梁的室内徐变试验，并对试验数据进行了回归分析。
2.
In this paper, parameters acquired from laboratory creep test for reinforced concrete beam were analyzed statistically.
本文对配筋混凝土小梁室内徐变试验测得的参数进行了回归，得出了配筋混凝土板的粘弹性参数，提出了相应的配筋混凝土板的粘弹性模型，为实际工程结构的应力分析提供依据。
6) creep experiment
徐变试验
1.
Furthermore,the creep experiment data from reference were fitted by this method.
针对拟合过程中实际变量多于未知变量的特点,应用共轭斜量法求解法方程组,在此基础上对文献中提供的砼徐变试验数据进行了拟合,拟合结果与试验数据吻合良好,并讨论了Dirichlet级数形式中初始值的选取要求。
2.
In order to obtain creep properties of high strength concrete(HSC) used in Sutong continuous rigid-frame bridge,creep experiment of reinforced high strength concrete was carried out under natural environment.
为获得徐变试验所需75t的加载力,设计并制造出95t的徐变加载装置,解决了混凝土徐变试验大吨位加载的问题。
补充资料：收缩
分子式：
CAS号：
性质：是单纯形优化法中的基本操作之一。当以原单纯形中试验效果最有效期的实验点A为基点，沿基点A与单纯形形心点O连线AO之延长线进行反射，反射点D的试验效果在以D点代替A点组成的新单纯形中最差，但仍优于A点，这时以小于反射操作步长L、但大于0.5L的某一步长推移单纯形到CD点，此操作称为收缩。若反射点CD的试验效果比A点还差，则以小于0.5L的某一步长推移单纯形到CA点，此操作称为内收缩。
CAS号：
性质：是单纯形优化法中的基本操作之一。当以原单纯形中试验效果最有效期的实验点A为基点，沿基点A与单纯形形心点O连线AO之延长线进行反射，反射点D的试验效果在以D点代替A点组成的新单纯形中最差，但仍优于A点，这时以小于反射操作步长L、但大于0.5L的某一步长推移单纯形到CD点，此操作称为收缩。若反射点CD的试验效果比A点还差，则以小于0.5L的某一步长推移单纯形到CA点，此操作称为内收缩。
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参考词条