This paper analyzes the causes and treatment of the torsional displacement and plane rotational displacement of curved continuous concrete beam bridge basing on an engineering example.
通过一个混凝土弯连续梁桥梁体出现较大扭转位移与平面转动位移的工程实例,分析其出现的原因及处理措施。
The article have expounded the load acting on PC single track beam, and the calculation of curved PC single track beam including force, prestress and the stress etc.
阐述了作用于PC轨道梁桥结构上的荷载,曲线pc轨道梁的内力计算,预应力计算,应力计算及组合。
On the basis of relevant test, the curved bear capacity of carbon fiber cloth reinforce reinforcing bar steel fiber concrete beam is studied.
在有关试验的基础上,对碳纤维布加固钢筋钢纤维混凝土梁的抗弯承载力进行了试验研究。
Electromechanical integrated; Toroidal drive; Manufacture of the stator; Manufacture of the toroidal worm; Curved beam; Minimum energy method; Efficiency.
机电集成; 超环面传动;定子加工; 环面蜗杆加工;曲线梁;最小能量法;效率。
Curved continuous beam is widely used in city bridge structures.
曲线连续梁桥是城市立交桥中广为采用的一种形式。
When a curved beam is bending in the plane of the curvature, the neutral axis of cross section is not identical with the axis of gravity due to the influence of the initial curvature.
由于曲率的影响,曲线梁在其曲率平面内弯曲时的中性轴不通过横截面的形心。因此弯矩在形心处要引起正应力,从而引出所谓“等效轴力”的概念。
The impact factor assessment method of curved bridge under moving vehicles mostly adopts the usages of straight beam Bridges, but not enough argumentations can demonstrate the reasonability.
我国的曲线梁桥汽车荷载冲击系数的取值目前仍普遍采用直线梁桥的研究成果,对其合理性缺少足够的研究。
Electron beam will deflect in a magnetic field. With the deflection of electron beam in workpiece, tiny curved hole can be machined.
利用电子束在磁场中偏转的原理,使其在工件内部偏转,可加工出微细弯孔。
Applying the theory of curved beam FEM, a practical method of structure analysis of curved bridge is build when considering the sidelong support.
应用曲杆有限单元法建立曲线梁桥的实用分析方法,并考虑了曲线梁桥的非径向支承特征。
This paper treats of the fixed end forces of circular curved beam.
本文讨论圆弧曲线杆固端力。
The calculation models of curved beam Bridges with same span length, but different curvature radius, center angles and supporting forms are established by means of finite element software.
利用有限元软件,建立了跨径相同、曲率半径和圆心角以及支撑形式不同的弯梁桥计算模型。
Meanwhile, the springback potential energy principle is applied to calculate the springback deformation of a pure bending of curved beam.
同时,应用该回弹势能原理于纯弯曲梁的回弹变形计算。
The equation is different from other conclusions inferring and quoting curved beam differential physical equation(with same fundamental assumptions) in the correlative literatures.
该方程与相关文献中推导和引用的曲梁微分物理方程(基本假定相同)结论不同。
In this paper, based on the behaviour of a curved beam, the change of the stiffness of restrained steel beams is studied.
本文根据曲梁的变形特点和虚功原理,分析了约束钢梁自身刚度的变化过程。
The curved beam finite element method, which is based on the theory of curved girder structure analysis, has been adopted for analyzing the curved bridge structure in this Paper.
本文根据曲线梁桥的结构分析理论,采用曲杆有限元法对曲线梁桥进行结构分析。
A nonlinear characteristic of taper leaf springs is presented by using the model of curved beam and the principle of virtual force.
通过建立钢板弹簧的曲梁模型,应用虚力原理求解位移,得到了变截面钢板弹簧刚度的几何非线性特性。
Based on the minimum potential theory of energy method, adopting Eular equation, the governing differential equations of curved beam were established.
基于能量法中的最小势能原理,结合欧拉方程建立了构件变形后的中性平衡微分方程。
The approach is based on large deflection characterisation of a curved beam, coupled with fracture mechanics concepts.
该方法是基于曲梁大变形理论及断裂力学而提出来的。
The results show that the seismic response of curved beam bridge and the influence of curvature radius can be reduced by using lead rubber bearing.
结果表明:铅芯橡胶支座不仅可以有效地降低曲线梁桥的地震响应,还有助于减少曲率半径对曲线梁桥地震响应的影响。
A theoretical approach is provided to investigate the problem of local free vibration of an initially stressed curved sandwich beam in this paper.
文章研究了受初始静载荷作用下夹芯复合材料曲梁的面板的局部自由振动问题,并给出一种相应的理论分析方法。
Based on the new contact model, finite element analysis scheme of drill rods in contact with curved boreholes is given using Bernoulli spatial curved beam elements.
利用新的接触模型,采用忽略横向剪切变形的三维空间曲梁单元对三维曲井内钻柱的接触非线性进行了有限元分析,给出了一套计算方法。
Thus, the design of PC curved beam is very complicated.
这将使得预应力混凝土曲梁的设计变得复杂。
The methods to determine the radars beam azimuth and its position while the radar is marching on at a curved route are advanced in this paper.
提出雷达沿曲线路径行驶时,实时确定其波束方位及自身位置的方法,特别是当行驶路径为预知曲线时,这种确定由于仅需获取行驶路程而变得十分简便。
Based on the results reported herein, one may conclude that the proposed curved element may be used for the analysis of three-dimensional curved beam structures.
基于所给出的结果,可望该有限元模型可以作为分析三维空间曲梁结构的有效工具。
Steel box continuous curved beam with its big span, little section, esthetical sculpt, is adopted generally by municipal projects.
钢箱连续曲梁以其跨度大、面小、型美,普遍被市政工程采用。
The comparison of the results by using curved beam element of this paper and a broken line approximation of several straight beam elements shows that the curved beam element is much b…
按本文公式编制的曲梁单元程序的运行表明,计算一个曲梁单元和计算一个直梁单元所需的计算机时间几乎是一样的。
This paper studied the problems in machining tiny curved holes with electron beam. The concerned formulae were derived so as to provide the basis for machining of tiny cured holes.
本文对电子束加工微细弯孔的有关问题进行了研究,导出了相关的物理方程,为微细弯孔的加工提供了理论依据。
The results show that, for a Gaus-sion laser beam, the shock front is a curved surface, the pressures at different radial positions on the wave front are different.
计算表明,对于高斯激光束,冲击波阵面为一曲面,波阵面上不同径向位置的压强是不同的。
The results show that, for a Gaus-sion laser beam, the shock front is a curved surface, the pressures at different radial positions on the wave front are different.
计算表明,对于高斯激光束,冲击波阵面为一曲面,波阵面上不同径向位置的压强是不同的。
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