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On the basis of the achievements made by the predecessor's and author himself,the physical significance of railway bridge stiffness is expounded and the norms made by many other countries in respect to vertical and lateral stiffness of railway bridges are also summarized.The source of some norms and a few questionable points are briefly introduced and discussed.Finally,it is pointed out that in the relaxation of the Japanese rigorous restrietions about the railway bridge stiffness are possible,and the paths... On the basis of the achievements made by the predecessor's and author himself,the physical significance of railway bridge stiffness is expounded and the norms made by many other countries in respect to vertical and lateral stiffness of railway bridges are also summarized.The source of some norms and a few questionable points are briefly introduced and discussed.Finally,it is pointed out that in the relaxation of the Japanese rigorous restrietions about the railway bridge stiffness are possible,and the paths of relaxation are proposed. 基于前人和笔者研究结果,文中阐明了铁路桥梁刚度的物理意义,综述了各国(桥规)对铁路桥梁的竖向刚度及横向刚度的规定。介绍了有关规定的来源,简要讨论了有关规定的疑难点。最后提出了日本对刚度的严格规定有可能放宽及放宽道路。 The finite strip method is employed for the analysis of skewed multi-box bridges. The organic glass modes were tested, the mechanic characteristics of such structures are discussed, and some suggestions for the design and construction are presented. 应用有限条方法分析多格式斜桥，编制了相应的计算程序，进行有机玻璃模型试验，讨论了这种结构受力性能．结果表明，多格式斜桥的受力性能介于板与箱之间，设计计算时可忽略剪力滞的影响，跨中应设置横隔板，而支承端的横向刚度则应相对小些． In order to build up the calculating formula of the lateral stiffness for the bell shape rubber spring, a group of heuristic functions are assumed with regard to its deformed feature. The lateral stiffness, derived by using the variation principle and the second Castingliano's theorem, is verified through the experiment. 为建立钟形橡胶弹簧横向刚度的计算公式,考虑到其变形特点,假设了一组试探位移函数。利用变分原理和卡氏第二定律导出的横向刚度与实测值吻合较为理想。
横向刚度
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lateral rigidity
It is preferable to have uniform lateral rigidity in every horizontal part of the structure.
The arrangements of shear walls are the most important factors in the uniformity of lateral rigidity.
lateral stiffness
Results indicate that the system stability is decided by the vehicle barycenter position and the lateral stiffness of a tire.
However, the lateral stiffness of each of the PDB's load paths is constant.
This is one of the applications of Part (I), in which the angular stiffness, the lateral stiffness and the corresponding stress distributions of C-shaped bellows were calculated.
It introduces lateral stiffness as a practical stability measure to quantify the ability of both circular saw types to resist lateral cutting forces without large deflections.
Design optimization based on a mathematical programming technique involves minimizing the lateral stiffness of the lateral load resistant system for the structure while satisfying specified drift constraints.
更多 transverse rigidity
However, a principal disadvantage of these methods is the inability to describe systems possessing differential (in particular, small) transverse rigidity.
Influence of an elastic medium on the state of stress of a cylindrical shell with a finite transverse rigidity, weakened by a sy
transverse stiffness
The transverse stiffness of the gastrocnemic muscles and the relationship between the strength of the crural muscles and the angle of talocrural articulation were investigated.
In the present work, the influence of the fibre treatment on the transverse stiffness of glass/epoxy unidirectional laminates is discussed.
Axial and transverse stiffness measures of cochlear outer hair cells suggest a common mechanical basis
It has been found that the correction introduced by taking into account the transverse shearing stressesis determined by the ratio of longitudinal stiffness to shear modulus as well as by the ratio of longitudinal to transverse stiffness.
Anisotropic polymer foams have been prepared, which exhibit a Poisson's ratio exceeding 1, and ratios of longitudinal to transverse stiffness exceeding 50.
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