利用土体的塑性流动理论，提出了用于描述饱和砂土在单调荷载作用下的应力—应变反应性质的弹塑性本构模型。
Based on the plastic flow theory of soils, an elastoplastic constitutive model for describing the stress-strain behavior of the saturated sands under the action of monotonic loading is developed.
基于概率方法建立了高柔结构顺风向抗风设计中，考虑地震作用组合的总水平荷载的计算模型并进行了求解。
A model on the earthquake effect combination in wind resistant design of high-rise flexible structures is proposed in accordance with the probability method.
利用点源简谐荷载作用下的土层反应与其它数值分析方法的对比讨论薄层模型的设置指标。
By comparing the surface displacement response under action of dynamic point loads obtained by TLM with that by other numerical method, the model setup indexes for TLM were discussed.
但通常的一些非线性损伤模型却不能反映荷载作用次序的影响。
But usually some nonlinear damage models can not reflect the influence of loading sequence.
将每根枕木考虑成一个支座反力，将横向枕木支承的钢轨模拟成离散的弹性地基梁模型，将列车考虑成一个作用在梁上的移动荷载。
We consider each sleeper as an abutment of opposite forces, rails on horizontal sleepers as a mock dispersed elastic ground beam model and trains as moving load on beams.
简要归纳了循环荷载作用下土体本构特性和循环塑性模型需满足的力学条件。
The constitutive behaviors of soils under cyclic loads and the mechanical requirements for cyclic plastic models are briefly summarized.
考虑平均风速的分布的影响，建立了随机荷载作用下的疲劳裂纹扩展模型。
Taking the distribution of mean wind velocity into account, the random crack growth model under variable amplitude load was established.
考虑到地震荷载作用下饱和黄土的孔隙水压力增长模式及液化规律，建立了饱和黄土无限边坡的动力稳定性分析模型。
Based on the increasing mode of pore pressure and liquefaction mechanism of saturated loess, a model to analyse the dynamic stability of infinite slopes of saturated loess is presented.
在试验的基础上提出了集中荷载作用下轻骨料混凝土梁受剪承载力计算公式的模型。
Based on the experimental results, the calculation formula model of shear capacity of lightweight aggregate concrete beams is put forward.
利用文克尔局部弹性地基模型，求解均布荷载作用下一端固定的弹性地基梁的基底压力；
With Winkler foundation model, the foundation pressure on Winkler foundation-beam with one fixed end and subject to evenly distributed loading is calculated.
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。
A new constitutive model, namely equivalent viscoplastic model, adaptive to cumulative deformation computation of sandy silt under long-term cyclic loading is proposed.
本文通过吊桥模型实验研究在传统型式吊桥上增设斜拉索后对结构在外荷载作用下的刚度的影响。
Based on the model test, in this paper, the stiffening-effect of inclined cable installed in the suspension bridge of traditional type is studied.
结果建立一种适合低周期反复荷载作用下的损伤模型，并进行了损伤与弦转角的关系分析，从而对其损伤机理、损伤过程及损伤的影响因素有更进一步的了解。
The damage model has been made and the analysis of the relation damage and turn Angle has been studied to give a better understanding of the damage theory, damage course and damage effect factors.
在设计荷载作用下模型梁具有良好的受力性能，通过合理的设计能有效地控制结构的变形、应力和裂缝。
Under design load, beam models have good compression capability. Rational design can control stress, strain and crack availably.
本文采用三维有限元模型分析了荷载作用下自上而下裂缝尖端的应力强度因子，并与二维平面应变模型分析的结果进行比较。
In this thesis, the stress intensity factors of top-down cracks caused by loading are calculated using three dimensional finite element model and compared to the results of plane strain model.
通过对铁路加筋土挡墙在列车重复荷载作用下的室内模型试验和动力特性分析，得出了加筋土挡培在动力荷载作用下的一些重要动态响应参数。
Some important dynamic responsive parameters are worked out about the reinforced earth structure under the impelling loads of train by model tests and analysis of dynamic characteristics.
针对双层隧道衬砌结构，建立了既考虑围岩与结构的相互作用，又能考虑车辆活荷载作用的结构计算模型。
The calculation models of the double decked tunnel were established in consideration of not only the interaction of the strata surrounding and lining but also the effect of live loads of vehicle.
分析了活荷载作用在各支座截面的传力特性，并提出了合理的简化计算模型。
Meanwhile they study transmission force features that the live load is applied on each support cross-section, and present rational simplified computation model.
结合微分几何的曲线论和分布荷载作用下索的受力模型，研究了索膜结构中边索、脊索和谷索的受力分析和形状分析。
Combined the curve theory of differential geometry and the cable model applied distributed load, form analysis and tension analysis of boundary cable, ridge cable and valley cable were performed.
由于三维模型所采用的车轮荷载更加符合实际作用的荷载，所以三维模型的结果更加准确。
As the wheel load assumed in three dimensional model is more consistent to practical loading, the results are more accurate.
采用进化策略求解静力荷载作用下拱坝体型优化设计的数学模型。
The shape optimization design model for an arch dam under the action of static loads is dissolved by using the evolution strategy.
构建了区间参数杆系结构在区间荷载作用下的分析模型，导出了结构的区间位移和区间应力响应区间变量表达式。
The finite element analysis of truss system with interval parameters under interval load is studied and the structural interval displacement and stress response are deduced.
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；
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.
首先建立单一微裂纹在单轴压缩荷载作用下的力学模型，求出裂纹端部的应力分量。
A mechanical model is built firstly for single microcrack under uniaxial compression loading, and the stress component of microcrack end is calculated.
通过模型梁试验，建立起简支梁在附加荷载作用下振动特性与破损模态之间的关系。
Through the test of model beam, we build the relationship between characteristics of vibration with attached load and its damaged mode.
结果表明，提出的模型能较好地描述饱和软黏土在循环荷载作用下的变形、孔压变化及模量损伤过程。
It is shown that the new model can preferably depict the deformation, pore pressure variation and modulus damage of the saturated soft clay subjected to the cyclic loading.
利用杆件结构有限元动力分析计算，并通过模型梁试验，建立起简支梁在附加荷载作用下振动特性与破损模态之间的关系。
Through beam structure finite unit dynamic analysis and experiment of RC model beam, we build the relationship between beam bridge attached load vibration characteristics and damaged model.
本文介绍了四幢足尺砖房模型在水平荷载作用下的动力、静力试验。
The tests of dynamic and static behavior of four full scale models of brick masonry building under lateral loading have been described.
为了分析砂岩类无序介质在各种荷载作用下的连续破坏过程，本文提出了梁-颗粒细观模型。
In this paper the beam particle model at a fine structural scale is presented for analysis of the progressive failure of such brittle disordered materials as sandstone by different loadings.
利用子结构分析方法和文克尔地基横向反力模型，建立了水平荷载下场高层框架结构。 桩基础-地基的共同作用分析模型。
With Substructural Analysis Method(SAM) and Windler foundation model of lateral reaction, an interaction analysis model of frame structure-pile foundation-soil under lateral load is established.
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