研究了高速移动荷载作用下轨道系统振动模拟的数值算法。
The paper presents the numerical algorithm of the rail system vibration simulation for high speed moving load.
提出移动荷载作用下杆系结构内力包络图的精确计算方法。
An exact method for computation of envelopes of various internal forces of skeletal structures under moving loads is developed.
用有限元法分析了板式轨道在移动荷载作用下的动力响应。
A finite element method was applied to analyze the dynamic response of slab track subjected to a moving load.
利用半解析法分析了饱和半空间在移动荷载作用下的动力响应。
The dynamic response of soil in saturated half space under moving load is analyzed by semi-analytical method.
列车制动过程中，车轮荷载作为移动荷载作用于线路和桥梁结构。
In course of train's braking, wheel load bring pressure to track and bridge structure qua locomotive load.
提出了一种基于BP神经网络的桥上移动荷载的分阶段识别新方法。
A novel BP neural network-based stage identification method for moving loads on bridge is proposed.
应用有限元数值计算方法，分析了复合路面在移动荷载下的动力响应问题。
The dynamic response question of composite pavement under moving load is analyzed by using the finite-element numerical calculation method.
导出了在单位水平移动荷载作用下，拱圈内力与支承反力影响线的计算公式。
Some formulas of inner force of arch ring, and the line of reaction of support with the action of unit live load are presented.
在车辆移动荷载作用下，这种复杂焊接结构的疲劳可靠性有待于进一步研究。
The fatigue resistance of complicated welded structure subjected to moving vehicle loads needs to be further researched.
特别是在车辆移动荷载作用下，这种复杂结构的疲劳可靠性有待于进一步研究。
Especially under the effect of vehicles moving load, the fatigue reliability of the orthotropic steel bridge deck needs to been further studied.
针对这种需要，笔者对移动荷载下的结构位移影响线的绘制和应用进行了探讨。
According to the need in the calculating of structural stiffness, drawing and applying the influence line of structural displacement in moving load is discussed in this paper.
新功能包括自动负荷分配，流体负载，负载模式，移动荷载，命令行，命名选择等等。
New features include automatic area load distribution, fluid loads, load patterning, moving loads, a command line, named selections and much more.
结果表明，移动荷载作用下柔性路面的动力响应分析方法结果正确，计算简单，便于应用。
The results show that the method to analyze the dynamic response in the flexible pavement under moving load presented in this paper is correct, simple and convenient for application.
第二章介绍了移动荷载识别的基本原理和相关知识，包括振型的正交性，模态叠加原理等。
The second chapter introduces the basic principle and the correlation knowledge of moving load identification, including mode shape orthogonality, mode superposition principle and so on.
分析了行驶车辆加速、减速及飞机起降过程中变速移动荷载所引起的刚性路面的动力响应。
Dynamic response of rigid pavement under variable - speed moving load caused by vehicle accelerating and decelerating and airplane landing are analyzed.
计算表明，基础弹性突变对梁的振动有较大影响，其影响随着移动荷载速度的增加而增加。
The computations show that the foundation elasticity stiffness abrupt change has greater influences on beam vibration. This influences increase with increase of the velocity of the moving loads.
考虑到地基振动对建筑物产生的直接影响，本文对移动荷载引起的地基响应作了详细的研究。
Taking account of the direct effect of ground vibration on buildings, the ground responses caused by the moving loads is studied in detail.
以一种新的、更符合实际的力学计算模型-移动荷载下粘弹性地基板系统来研究场道的无损检测理论。
This paper is absorbed in the research of the nondestructive testing theory about airport rigid pavements, which is on semi_infinit e viscoelastic foundation to moving load.
移动车辆荷载反复作用会导致桥梁疲劳损伤甚至破坏，移动荷载识别是桥梁健康监测的重要措施之一。
Moving loads identification is one of the important measures for health monitoring of bridge because the cyclic action of moving loads may lead to fatigue damage or even failure of the bridge.
基于移动荷载识别理论并根据移动常力轴载特点，提出了一种用于准确识别移动常力轴载的快速算法。
Based on the theory of moving force identification and the characteristic of moving constant axle loads, a new fast and simplified algorithm is proposed for the moving force identification.
讨论了桥梁、工业厂房和大型公共建筑中较多采用的单层多跨刚架在移动荷载作用下影响量的计算方法。
The calculation method for the influence quantity is discussed for single-layer multi-span frames under moving load, which are wildly used in Bridges, industrial and public buildings.
分别以移动荷载和黏弹性半空间体模拟运动列车荷载和地基，分析了地基在运动列车作用下的动力响应。
To investigate high-speed train induced subground vibrations, viscoelastic half-space under moving loads was used to model the subground under passing trains.
通过建立2.5维有限单元结合薄层单元方法，研究了接近或超过临界速度的移动荷载作用下地基三维振动问题。
A hybrid method of 2.5 dimensional finite element and thin-layer element was developed to study dynamic ground responses due to moving loads.
研究结果表明，基于动力模型的BP神经网络移动荷载识别方法，能够有效识别简支梁桥与连续梁桥上的移动车载；
The results show that the method of BP neural network used to identify moving force based on the dynamic model can effectively identify the moving force on the simple beams and continuous beams.
结果表明：在匀速移动荷载作用下，带支座损伤的空心板桥跨中挠度的动力放大系数可以比支座未损伤时增大22%。
The results show that: In the uniform moving loads with bearing damage of the hollow cross-Panchiao deflection dynamic magnification factor of the bearing can not damage more than 22 percent increase.
最后对不同坡度和不同跨度的架空斜坡道结构进行了动力时程分析，明确了此结构在移动荷载作用下的薄弱环节和传力途径。
Finally, it makes the dynamic time-history analysis of different gradient overhead sloping ramp, makes clear the weak link and the force transmission route of this structure under moving load action.
通过静态特性研究，分析了移动荷载对结构的剪力、弯矩和应力的影响，分别确定了剪力值最大、弯矩值最大和应力最大的位置。
The influences of moving load on shear stress and bending moment are analysed by static characteristics, and the reliability of crane is studied with MonteCarlo method.
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.
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.
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