An ameliorative nonlinear creep model and its application to thermal stress simulation during construction period
改进的非线性徐变模型及其在混凝土坝施工期温度应力仿真分析中的应用
Creep of RCC consists of approximate linear creep at the level of low stress and nonlinear creep at the level of high stress.
碾压混凝土的徐变包括低应力水平下的近似线性徐变和高应力水平下的非线性徐变,在低应力水平下,损伤值较小,徐变近似线性,可以应用叠加原理;在高应力水平下,损伤值较大,徐变表现为明显的非线性,叠加原理不再适用,高应力水平下徐变的非线性特征可以用线性徐变和损伤耦合来描述。
Shrinkage and creep of high-strength lightweight aggregate concrete;
高强轻骨料混凝土收缩和徐变试验
The sidewall fracture of the shaft and the creep of concrete;
井壁破裂与砼的徐变破坏
Long-period contraction creep forecast of concrete based on short-period test;
基于短期试验预测混凝土长期收缩徐变
Vertical deformation calculation of the high-rise concrete structure resulted from creeping
高层混凝土结构由徐变引起的竖向变形计算
Based on the background of Maocaojie Arch Bridge, a test study was made of the creeping of high-performance concrete by simulating the actual concrete percentage and sectional stress state of an actual section.
以茅草街钢管砼拱桥为背景,采用实桥混凝土配比,模拟截面应力状态,进行高强混凝土徐变试验研究;测试并绘出混凝土徐变发展曲线,与AC I209(82)、CEB-F IP(M C 78)、CEB-F IP(M C 90)公式计算结果进行对比,提出了高强混凝土徐变系数近似估算式。
In order to understand the factors influencing the creeping of concrete with compound ultra-fine fly ash (CUFA), the creep behavior of C50 concrete with CUFA and C50 ordinary portland concrete were tested by parallel experimental methods.
用对比实验方法系统研究了原材料组成、养护制度以及加载龄期等因素对强度等级为C50的复合超细粉煤灰(compound ultra fine fly ash,CUFA)混凝土和C50普通混凝土徐变的影响规律,并分析了相应的影响机理。
An ameliorative nonlinear creep model and its application to thermal stress simulation during construction period
改进的非线性徐变模型及其在混凝土坝施工期温度应力仿真分析中的应用
Study on Nonlinear Finite Element Analysis of Concrete Arch Dam Creep Effect;
混凝土拱坝徐变效应的非线性有限元分析计算研究
multivariable nonlinear feedback system
多变量非线性反馈系统
Nonlinear data exhibit considerable variation.
非线性数据变化较大。
nonlinear stress strain relation
非线性应力应变关系
Blast-resistant properties of beams consisting of nonlinear elastic large deformation materials
非线性弹性大变形材料梁的抗爆特性
Research on the DC/AC Inverter Supplies Powering Nonlinear Loads;
非线性负载条件下的逆变器特性研究
Study on Non-linear Dynamics Analysis for Heart Rate Variability;
心率变异性非线性动力学分析的研究
The Existence of Solutions to Nonlinear Mixed Variational-like Inequalities;
非线性混合似变分不等式解的存在性
Oscillation of Second Order Variable Nonlinear Difference Equations;
二阶变时滞非线性差分方程的振动性
Linearized Oscillation of First Order Nonlinearity Variable Delay Differential Equation
一阶非线性变时滞微分方程的振动性
Oscillation of Non-linear Difference Equations with Continuous Arguments
具连续变量非线性差分方程的振动性
Visco-Plastic Rheological Properties and a Nonlinear Creep Model of Soft Rocks
软岩黏弹塑性流变特性及非线性蠕变模型
Research on the Quasi-variational Principles in Nonlinear Non-conservative Elasticity;
非线性非保守系统弹性力学拟变分原理研究
Experimental Study on Non-liner Rheological Characteristics of Unsaturated Expansive Soils
非饱和膨胀土非线性流变特性试验研究
Study of Nonlinear Characteristic Curve for the Core of Transformer with Magnetic Coupling
变压器铁心磁耦合下非线性特性曲线的研究
Linear Slowly Varying Bifurcation of Non-linear Dissipative Systems and Control;
非线性耗散系统的线性时变分岔及控制
Partial Lagrange Stability for a Class of Nonlinear Time Varying Systems
一类非线性时变系统关于部分变元的Lagrange稳定性