因此可作为一般混凝土徐变问题的中值系数值。
Therefore, these values can be used for general creep problems of concrete.
正长岩骨料的混凝土徐变大于玄武岩骨料的混凝土徐变。
The creep of basalt aggregate concrete is smaller than that of syenite aggregate concrete.
它将有助于读者对混凝土徐变和收缩次内力计算原理的理解。
It may help the readers to understand the computational principle of secondary internal forces due to the creep and shrinkage of concrete.
它可以一次算出预加力引起的弹性的和混凝土徐变的次弯矩。
It can be used to compute in one run the secondary bending moments due to both elastic and creep strains, produced by prestress force.
再次，讨论了预应力、混凝土徐变、箱梁抗弯刚度等对桥梁结构下挠的影响。
Thirdly, pretressing, concrete creep and bending rigidity of box girder are studied to discuss their impacts on the deformation of girder.
讨论了混凝土收缩简化计算方法及混凝土徐变对温度及收缩应力计算的影响；
The paper studies the simplification calculation method of concrete shrinkage and the calculation of temperature and shrinkage stress that takes the effects of concrete creep into account.
计算中考虑了温度荷载、自重、静水压力、混凝土徐变和自生体积变形等情况。
In the computation of stress field, the factors, such as temperature load, deadweight of concrete, water potential, creep stress and self expansion of concrete, are involved in the program.
提高对混凝土徐变的长期预测精度，是工民建设计中要解决的的一个关键问题。
Increasing the long-term estimate to creep accuracy, it's a key problem to resolve in projects.
混凝土徐变收缩分析是桥梁结构分析中的基本问题，已有多种较成熟的计算方法。
The analysis for concrete creep and shrinkage is a common problem in the bridge structural analysis, and there are many popular methods available now.
对不同养护温度下的混凝土徐变进行了研究，用化学反应速率描述温度对混凝土徐变的影响。
A study was made on concrete creep under different curing temperatures, and the comprehensive effects of time and temperature on creep development were expressed with the chemical reaction rate.
在混凝土徐变的研究基础上，运用混凝土的徐变产生机理，研究徐变对桥梁结构挠度和内力的影响。
Based on the research of concrete creep and using the mechanism of concrete creep, the impact of creep of concrete bridge linearity and internal force is studied in this paper.
本文通过应用粉煤灰混凝土、成熟度理论和流变学的相关理论，建立了粉煤灰混凝土徐变的簇模型。
In this paper, a clusters model of fly ash concrete creep was found, applying the related theories of fly ash concrete, the maturity and rheology model.
最终运用本模型对加载龄期和粗骨料、水泥砂浆比参数进行了分析，给出了粉煤灰混凝土徐变的规律。
Finally using the model loading age and coarse aggregate, cement ratio parameters were analyzed, and the laws of fly ash concrete creep are present.
粉煤灰混凝土徐变的簇模型对粉煤灰混凝土徐变作出了机理性的解释，为粉煤灰混凝土徐变预测提供了一个新的选择。
Clusters model of fly ash concrete creep gives rational mechanism explanation of fly ash concrete creep, providing a new choice for the fly ash concrete creep prediction.
本文论述了混凝土徐变的特性及其影响因素，并通过B3 模型对混凝土的徐变进行计算，同时提出几点建设性意见。
This text discusses the characteristic and its influence factors of concrete creep. Passing the B3 model, we compute the concrete creep. Then, We put forward some constructive opinions.
分析了影响钢筋混凝土轴心受压柱最大配筋率的几种因素，并用实例演示了考虑混凝土徐变后，该公式在结构设计中的应用。
In the case of the repeated loading, this paper deduces the formula of the maximum reinforcement ratio which can prevent the cracking of the axial compressive pillar from cracking when it is unloaded;
通过分析研究，还得出不同粉煤灰掺量及配比的C5 0高性能混凝土徐变计算公式，可为实际工程中分析掺粉煤灰混凝土徐变性能提供帮助。
Based on the experimental results, a formula is developed to calculate the creep of C50 high performance concrete with different proportion of fly ash.
通过试验结果与现行桥规JTGD62-2004的比较得出：配筋高强混凝土徐变系数远小于规范取值，且在170天后徐变系数有收敛的特征。
The measured values of creep coefficient are far less than that of current bridge code (JTG D62-2004), and it has the characteristics of convergence after 170 days.
然而，混凝土的徐变及其对桥梁结构性能影响的预计和控制，是十分复杂又难以获得精确答案的问题。
However, creep of concrete and its influence on bridge structures are hard to predict and control. The calculation is very complicated and the results are not accurate.
拱度和混凝土的收缩、徐变的影响比较明显。
The effect of arch degree, concrete's shrink and creep is distinct.
不同加载龄期混凝土的徐变规律。
应用退化梁单元分析了混凝土结构的徐变问题。
The creep of concrete structures is studied using degenerated beam element.
收缩和徐变是混凝土作为粘弹性材料的一种固有的时变特性。
Shrinkage and creep are the inherent time-dependent characters of concrete which belongs to a viscoelastic material.
拱度和混凝土的收缩、徐变的影响比较明显。
The effect of arch degree, creep and shrink of concrete is very distinct.
混合结构的一个突出问题是混凝土有徐变收缩的性质，而钢无此性质。
A noticeable problem of this structure system is that concrete has the characteristics of creep and shrinkage while steel hasn't.
混凝土实测应变包含弹性应变、徐变应变及混凝土自由变形、温度应变等非应力应变。
The measured strain of concrete includes the elastic strain, creep strain and also the non-stress strain like the concrete free deformation and temperature strain.
研究目的：混凝土的徐变对预应力混凝土结构的影响不容忽视。
Research purposes: Creep of concrete has significant influence for prestressed concrete structures.
如何基于ANSYS软件平台进行考虑温度影响效应的混凝土结构早期温度徐变应力场的计算。
How to calculate thermal creep stress filed of early-age concrete considering temperature effect by ANSYS software.
试验研究了水泥用量、矿物掺合料、龄期对高性能混凝土收缩、徐变的影响规律。
The laws of influences from usage amount of cement, mineral admixtures and concrete age on shrinkage and creep of high performance concrete are studied through tests.
试验研究了水泥用量、矿物掺合料、龄期对高性能混凝土收缩、徐变的影响规律。
The laws of influences from usage amount of cement, mineral admixtures and concrete age on shrinkage and creep of high performance concrete are studied through tests.
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