基础 1.(泛指事物发展的根本或起点) foundation; base; basis 经济基础 economic base [basis]; 理论基础 theoretical basis; 物质基础 material base; 在和平共处五项原则的基础上, 同各国建立和发展关系 establish and develop our relations with other countries on the basis of the five principles of peaceful coexistence; 打基础 lay a foundation; 为增产打下坚实的基础 lay solid foundations for increased production; 在已有的基础上前进 build on past achievements; 这是两国关系应得到继续发展, 并可能得到继续发展的基础。 this is the basis on which our bilateral relations can and should continue to develop.2.(把建筑物、机器等的荷重传递给地基的结构) base; seat; groundwork; bottom; underpinnings; substruction; foundation; subbasement; 基础 (课)部 basic courses department; fundamentals department; 基础代谢 basic metabolism; 基础工业 basic industries; key industries; 基础教育 elementary education; 基础结构 infrastructure; 基础科学 basic science; 基础课 basic course (of a college curriculum); 基础理论 basic theory; 基础理论研究 fundamental research; 基础设施 parts of the infrastructure; projects for basic facilities; 基础施工 foundation construction; 基础训练 grounding; 基础医学 preclinical medicine; 基础研究 research in basic science; basic research
On the classification of elastic foundation beams with finite length 关于有限长弹性基础梁的分类
Beam on elastic foundation 弹性基础梁
Numerical evaluation of the strip foundation beams under the pillars of the box - type hoist tower 箱形井塔柱列下条形基础梁的数值计算分析
Analyzing the physical meaning of y which is the coefficient of bending differentiating equation , the effect of y on stress modification coefficients is considered , when the value of y is more than 1 在分析弹性基础梁弯曲微分方程中系数物理意义的基础上,讨论了取值范围不同对应力的影响,并推导了当1时应力修正系数的公式。
However , this kind of foundation becomes a complex system under the interaction of pile - beam - soil and the behavior of the foundation is still not clearly explained . as this kind of foundation is used in a great number of buildings every year in china , further research on the interaction of pile - beam - soil is needed . a computing program of crossed foundation beam is developed by using the coordinate alteration matrix and taking into account the action of soil under the foundation beam 通过考虑梁下地基土对基础梁的各向支承作用,引入坐标变换矩阵对任意方向上的基础梁进行坐标变换,使其能适用于格式基础梁(包括非正交格式基础梁)的计算,同时采用荷载修正法修正格式基础梁中基底重叠面积的影响,用刚度修正法修正桩?梁基础中基底重叠面积的影响。
As regards to the spheric thin shell structure under external hydro static pressure , basing on flat - plate theory and by using basic von karman equations for large deflection , the equilibrium problem of axisymmetric bending of the spheric shell under uniform external pressure is simplified to an equilibrium problem of bending of elastic basic flat - plate and further converted into an equilibrium problem of beam on elastic fundation taking into consideration of the deformation characteristics 对球形薄壳结构随静水外压的情况,应用平板理论中的vonkarman大挠度基本方程,将球形薄壳在均匀外压下的轴对称弯曲平衡问题简化为弹性基础平板的弯曲平衡问题,进而再根据变形特点将其转化为弹性基础梁的复杂弯曲平衡问题。
Meanwhile , the influence of overlapping area on the beam foundation is modified by means of load amendment , and the influence of overlapping area on the pile - beam foundation is modified by means of stiffness amendment . by applying the model of stress - spread in shear - displacement method to describe the stress spread between piles and the geddes hypothesis to determine the stress distribution of pile , a displacement coefficient is deduced to calculate the flexibility matrix and the coefficient for load distribution of pile . considering the stiffness of foundation beam , the equation of the interaction of pile - beam - soil is established and an analysis program is developed related to the interaction 本文通过采用剪切位移法中的应力扩散模型考虑桩与桩之间的应力传递作用;采用geddes假定确定桩身和桩端的应力分布,推导位移系数,并以此为基础求得柔度矩阵;桩身和桩端的应力分布大小由桩的荷载分配系数控制,通过迭代法可以求出桩的荷载分配系数;在考虑基础梁对桩?梁?地基土共同作用的刚度贡献基础上,提出了桩?梁?地基土共同作用方程,并通过本文作者开发的相应计算程序,经实例计算验证了本文方法的正确性。