1) pre-eccentricity
预偏心
1.
The paper introduces the influence of pre-eccentricity of single-pier support on torsion re-distribu-tion of continuous curved bridge,and shows the method and produce of optimal pre-eccentricity distances of single-pier support by graphic method,at last,we take the three span single-pier small radius curved boxed bridge as an example to illustrate it furtherly.
文章介绍了支座预偏心对独柱式点支承曲线连续梁扭矩重分布的影响,并阐述了图解法确定各支座最优预偏心的方法和步骤,最后以某一3跨独柱式点支承小半径的弯箱梁桥为例来进一步说明图解法对曲线梁扭矩调整的过程,且该方法可以推广应用到全部为抗扭线形支承的曲线连续梁。
2) presupposed off-center
预设偏心
1.
The principle that presupposed off-center can improve the mechanical behavior of the single-column supported curved beam was explained in this paper.
阐述了预设偏心能改善独柱支撑曲梁受力特性的原理,通过实例分析设置不同偏心值对相同半径曲梁内力的影响、以及不同偏心值对不同半径曲梁的内力影响,并得出了具有一般规律的特性。
4) pivots pre-eccentricity
支点预偏心
1.
In this paper,the rules of the mechanical characteristics of curve beam bridge with pre-eccentricity of pivots are studied with finite element method,the effect of the radius and that of the height of piers on the mechanical characteristics of curve beam bridge with pivots pre-eccentricity are studied in this paper as well.
为探寻高墩小半径曲线梁桥的合理支承形式,以此来保证高墩小半径曲线梁桥的安全,需要确保采用合理的支点预偏心。
5) suitable bearing eccentricity
支座预偏心设置
1.
In virtue of the basic mechanical character, the suitable bearing eccentricity method in single- point-supported continuous curved girder bridge was studied.
连续弯梁桥的扭矩分布可以通过调整支座预偏心加以改变,支座预偏心设置对弯梁桥受力至关重要。
6) Bearing eccentricity in advance
预设支座偏心
补充资料：在AutoCAD中偏心圆锥与偏心圆台实体的画法
现在要画一个偏心圆锥,底面在WCS的XY平面上,圆心(0,0,0),半径100,顶点(300,0,400)在ZX平面上.
1)连接PA,PB. A(-100,0,0) B(100,0,0)
图1
在当前坐标下:
2)延长PA到C,使PA=CA;延长PB到D,使PB=DB;
3)连接CD;
4)以CD为直径画圆;
5)用XLINE命令中的二等分选项作角CPD的角平分线PO,交CD于O;
6)过O作CD的垂线,交圆于E,F;
图2
7)用三点UCS命令,取三点为:O,P,C;
8)过点O作PO的垂线GO,交PC于G;
图3
9)再次用三点UCS命令,取三点为O,F,G;
10)现在就可以画椭圆锥了!
cone-e-c-捕捉O点-捕捉F点-捕捉G点-a-捕捉P点;
图4
11)回到WCS,剖切椭圆锥
SL-选择椭圆锥-回车-XY-回车-捕捉P点.
12)删除辅助线条.
图5
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条