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central angle of curvature
相关语句
  相似匹配句对
     angle.
     角。
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     The angle between laser axis and PSD central axis changes with the pipe curvature because of the restriction of pipe’s inner surface.
     在管道内壁的约束作用下,出射激光和PSD传感器的中轴线的夹角将随着管道曲率的变化而变化。
短句来源
     Induced Curvature and Lubrication Angle of Conjugate Curved Surface
     共轭曲面的诱导曲率与润滑角
短句来源
     THE SIMPLE CALCULATION ON SCATTERED ANGLE IN CENTRAL FORCE FIELD
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First of all, this paper introduced strian functions in the plane of flange slab and expounded that its normal stress of the cross section varied with the third power parabola distribution. Sccondly.by means of the variational principle the paper presented differential equations to obtain computational formulas of shear lag effect in curved box girder bridges. Finally, based on the above analysis, graphs of shear lag coefficient were organized in accordance with span width ratio and central angle of curvature....

First of all, this paper introduced strian functions in the plane of flange slab and expounded that its normal stress of the cross section varied with the third power parabola distribution. Sccondly.by means of the variational principle the paper presented differential equations to obtain computational formulas of shear lag effect in curved box girder bridges. Finally, based on the above analysis, graphs of shear lag coefficient were organized in accordance with span width ratio and central angle of curvature. These graphs were of practical value. The theoretical formulas given in the paper were general formulas of straight and curved box girder bridges.

首先,本文提出了翼缘板平面内的应变函数,其横截面的正应力按三次抛物线规律变化。其次,运用变分原理导出微分方程,从而得到曲线箱梁桥剪滞效应的计算公式。在此基础上,编制了考虑曲率中心角和宽跨比两个重要因素的剪滞系数图表,可供实际应用。本文的理论公式是直、曲箱梁桥的普遍公式。

On the basis of thin walled curved bars theory and the variational principle, the equations of equilibrium with considering the shear lag, the bending and torsion (St. Venant and Warping) for thin walled curved box girders are established. The closed form solutions of equations can be derived by means of mathematical method. The theoretical formulas obtained are applied to caculate the shear lag effects for straight and curved box girder bridges. The Vlasov's Equation is developed. The variations of shear...

On the basis of thin walled curved bars theory and the variational principle, the equations of equilibrium with considering the shear lag, the bending and torsion (St. Venant and Warping) for thin walled curved box girders are established. The closed form solutions of equations can be derived by means of mathematical method. The theoretical formulas obtained are applied to caculate the shear lag effects for straight and curved box girder bridges. The Vlasov's Equation is developed. The variations of shear lag effect of curved box girder bridge, caused by the change of factors such as the central angle of curvature, the flange width/span ratio, the flange width/web depth ratio, the flange width/thickness ratio, the flange thickness/web thickness ratio and the types of loadings are also discussed. To verify the accuracy and applicability of the present method, comparisons of results for typical numerical examples are given.

以薄壁曲杆理论为基础,运用能量变分原理,建立了薄壁曲箱梁桥剪力滞的弹性控制微分方程,并导出了弯、扭、剪力滞耦合的一般闭合解。所得的计算公式,是对符拉索夫(Vlasov)方程的推广,适合于曲、直箱梁桥的剪滞效应计算。给出了典型的计算实例,并与有限条法数值解作了比较。最后分析了曲率中心角、宽跨比、宽高比、宽厚比、板厚比以及荷载型式等因素对剪滞效应的影响,其结果可对工程设计提供参考

 
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